ANNUAL_REPORT_YEAR WDID REGION REG_MEAS_STATUS LAST_UPDATED_ON SSS_CATEGORY POP_SERVED #_ENTRY_STAFF #_JOURNEY_STAFF #_SUPERVISORY_STAFF #_MANAGERIAL_STAFF #_CERTIFIED_GRADE_I #_CERTIFIED_GRADE_II #_CERTIFIED_GRADE_III #_CERTIFIED_GRADE_IV #_CERTIFIED_GRADE_V #_CERTIFIED_CSUS OTHER_CERTIFICATIONS MILES_FORCED_MAINS MILES_GRAVITY_SEWERS %6IN_OR_LESS_GRAVITY_MAIN %8IN_GRAVITY_MAIN %9-18IN_GRAVITY_MAIN %19-36IN_GRAVITY_MAIN %36IN_GREATER_GRAVITY_MAIN %UNK_DIAM_GRAVITY_MAIN %TOT_GRAVITY_MAIN %6IN_OR_LESS_FORCE_MAIN %8IN_FORCE_MAIN %9-18IN_FORCE_MAIN %19-36IN_FORCE_MAIN %36IN_GREATER_FORCE_MAIN %UNK_FORCE_MAIN %TOT_FORCE_MAIN #_CONNECTED_LATERALS #_LATERALS_OWNED_OPERATED PORTIONS_LATERAL_RESPONSIBLE MILES_LATERAL_RESPONSIBLE %GRAVITY_MAIN_2020-PRESENT %GRAVITY_MAIN_2000-2019 %GRAVITY_MAIN_1980-1999 %GRAVITY_MAIN_1960-1979 %GRAVITY_MAIN_1940-1959 %GRAVITY_MAIN_1920-1939 %GRAVITY_MAIN_1900-1919 %GRAVITY_MAIN_BEFORE_1900 %GRAVITY_MAIN_UNKNOWN_AGE %GRAVITY_MAIN_TOTAL #PUMP_75000_GAL/DAY_OR_OVER_2020-PRESENT #PUMP_75000_GAL/DAY_OR_OVER_2000-2019 #PUMP_75000_GAL/DAY_OR_OVER_1980-1999 #_PUMP_75000_GAL/DAY_OR_OVER_1960-1979 #PUMP_75000_GAL/DAY_OVER_1940-1959 #PUMP_75000_GAL/OR_OVER_1920-1939 #PUMP_75000_GAL/DAY_OR_OVER_1900-1919 #PUMP_75000_GAL/DAY_OR_OVER_BEFORE_1900 #PUMP_75000_GAL/DAY_OR_OVER_UNKNOWN_AGE #PUMP_75000_GAL/DAY_OR_OVER_TOTAL #PUMP_UNDER_75000_GAL/DAY_2020-NOW #PUMP_UNDER_75000_GAL/DAY_2000-2019 #PUMP_UNDER_75000_GAL/DAY_1980-1999 #PUMP_UNDER_75000_GAL/DAY_UNDER_1960-1979 #PUMP_UNDER_75000_GAL/DAY_1940-1959 #PUMP_UNDER_75000_GAL/DAY_1920-1939 #PUMP_UNDER_75000_GAL/DAY_1900-1919 #PUMP_UNDER_75000_GAL/DAY_BEFORE_1900 #PUMP_UNDER_75000_GAL/DAY_UNKNOWN_AGE #PUMP_UNDER_75000_GAL/DAY_TOTAL EST_MILES_NOT_ACCESSIBLE MILES_CLEANED MILES_INSPECTED FIRST_ROW_TREATMENT_PLANT_WDID FIRST_ROW_NAME_ADDRESS FIRST_ROW_RELATIONSHIP SECOND_ROW_TREATMENT_PLANT_WDID SECOND_ROW_NAME_ADDRESS SECOND_ROW_RELATIONSHIP THIRD_ROW_TREATMENT_PLANT_WDID THIRD_ROW_NAME_ADDRESS THIRD_ROW_RELATIONSHIP FOURTH_ROW_TREATMENT_PLANT_WDID FOURTH_ROW_NAME_ADDRESS FOURTH_ROW_RELATIONSHIP SATELLITE_TRIBUTARY_SYSTEMS FIRST_ROW_TRIBUTARY_SYSTEM_OWNED FIRST_ROW_TRIBUTARY_SYSTEM_NAME FIRST_ROW_COLLECTION_SYSTEM_WDID SECOND_ROW_TRIBUTARY_SYSTEM_OWNED SECOND_ROW_TRIBUTARY_SYSTEM_NAME SECOND_ROW_COLLECTION_SYSTEM_WDID THIRD_ROW_TRIBUTARY_SYSTEM_OWNED THIRD_ROW_TRIBUTARY_SYSTEM_NAME THIRD_ROW_COLLECTION_SYSTEM_WDID FOURTH_ROW_TRIBUTARY_SYSTEM_OWNED FOURTH_ROW_TRIBUTARY_SYSTEM_NAME FOURTH_ROW_TREATMENT_PLANT_WDID FIFTH_ROW_TRIBUTARY_SYSTEM_OWNED FIFTH_ROW_TRIBUTARY_SYSTEM_NAME FIFTH_ROW_TREATMENT_PLANT_WDID INFO_ADDITIONAL_TRIBUTARY_SYSTEMS #GRAVITY_MAINLINE_AERIAL_OR_UNDER_GROUND_CROSSINGS #FORCE_MAINLINE_AERIAL_OR_UNDER_GROUND_CROSSINGS #_SIPHONS SYSTEM_PERFORMANCE_EVAL_ATTACHED SPILL_EMERGENCY_RESPONSE_PLAN_UPDATED MAJOR_SPILL_CAUSES SPILL_CAUSES_OTHER_DESC FAILURE_POINTS FAILURE_POINTS_OTHER_DESC ONGOING_SPILL_INVESTIGATIONS ACTIONS_TAKEN_TO_ADDRESS_DEFICIENCIES 2023 3SSO10315 3 616 25-MAR-24 Other 10500 0 1 0 1 0 0 0 1 0 1 0 7 90 5 5 0 0 0 100 0 0 0 0 0 0 0 7 7 Upper and Lower 7 0 0 8 92 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 7 2 WDID City of Watsonville, Watsonville, CA 95076 WWTP same agency N 2 0 1 N Y Damage by Others Not Related to Collection System Construction/Maintenance Manhole None None 2023 6SSO18106 6A 616 11-APR-24 Municipal(Public) 2400 1 2 1 0 1 0 0 1 0 2 0 6.4 1 30 63 6 0 0 100 0 0 0 0 0 0 100 287 287 Lower only 1 20 80 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 6 6 100% Herlong PUD 448-805 Pole Line Rd, Herlong WWTP same agency N 0 0 0 Y Root Intrusion Upper Lateral NONE New infrastructure 2023 8SSO10542 8 616 03-APR-24 Municipal(Public) 344461 4 8 2 4 3 1 1 0 0 0 Two (2) NASSCO PACP Certified Employees 0 560 20 30 25 25 0 0 100 0 0 0 0 0 0 0 94000 0 None 0 1 4 22 40 30 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 568 40 8SSO10574 Garden Grove City CS, 13802 Newhope Street, Garden Grove, CA 92843 SSS other agency 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP other agency WWTP other agency Y N City of Buena Park 8SSO10546 N City of Placentia 8SSO10593 N City of Fullerton 8SSO20044 10 1 144 Y Y Debris-wipes/Non-disposables Gravity Mainline NA Ongoing capital improvement program and sanitary sewer studies. Ongoing as-needed point repairs as identified during CCTV inspections and / or preventative maintenance activities. 2025 8SSO10542 8 616 24-APR-26 Municipal(Public) 336000 6 7 1 5 2 1 1 0 0 0 NA 0 580 20 30 25 25 0 0 100 0 0 0 0 0 0 0 95000 0 None 0 1 4 22 40 30 2 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 448 26 8SSO10574 Garden Grove City CS, 13802 Newhope Street, Garden Grove SSS other agency 8SS010640 Orange County Sanitation District WWTP other agency Y N City of Buena Park 8SSO10546 N City of Placentia 8SSO10593 N City of Fullerton 8SSO20044 1 0 130 Y Root Intrusion FOG, Debris/wipes Gravity Mainline N/A N/A Ongoing capital improvement programs. Proposals for City wide Sewer assessment. Ongoing as-needed repairs and preventive maintenance program upgrades. 2023 8SSO10574 8 616 29-MAR-24 Municipal(Public) 172652 0 10 1 1 4 3 2 1 0 1 n/a 3 328 2 80 14 4 0 0 100 10 90 0 0 0 0 100 37100 0 None 0 2 4 2 20 67 5 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 1 170 9 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency N n/a 0 0 60 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a No ongoing spill investigations. A Capital Improvement Plan was developed in accordance with findings contained in the District’s System Evaluation and Capacity Assurance Plan (SECAP) and its Sewer System Rehabilitation Plan. The Sewer System Rehabilitation Plan is an ongoing, multi-year effort of inspecting and evaluating the condition of the entire sewer system. The sewer system was first inspected and evaluated (in phases) between 2005 and 2012. In 2017 the District continued the Rehabilitation Plan in order to re-inspect and re-evaluate the entire sewer system. Phase I of the Rehabilitation Plan was completed in 2017-2018. Phase II of the Rehabilitation Plan was completed in 2021-2022. Phase III is planned for later this year. As part of the Capital Improvement Plan, an ongoing schedule of improvements at various site locations are in progress to address system capacity and deficiencies. This will decrease sewer overflows and enable development throughout the City. 2024 8SSO10574 8 616 13-NOV-25 Municipal(Public) 172652 2 7 2 1 5 3 2 1 0 1 N/A 3 328 2 80 14 4 0 0 100 10 90 0 0 0 0 100 371000 0 None 0 2 4 2 20 67 5 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 1 152.7 19.2 8 300112001 Groundwater Replenishment System - Advanced WTF, 18700 Ward Street, Fountain Valley, CA 92708-6930 WWTP other agency N N/A 0 0 60 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A No ongoing spill investigations. The District is in the process of updating its Sewer Master Plan. The Master Plan will evaluate existing flows, re-evaluate previously recommended but unconstructed projects identified as deficient, and project future flow conditions. The objective of the updated Sewer Master Plan is to evaluate the system’s capacity to accommodate future flow conditions including additional wastewater flow from the accessory dwelling units and the SB9 housing requirements. The Master Plan will also assess the impact of inflow and infiltration flow on the system. Additionally, the sewer hydraulic model will be updated and calibrated using flow data collected by monitoring devices. Other tasks will include assessments of the force mains and the suction and discharge pipes at the three lift stations. The Sewer Master Plan will become the District’s new planning document describing improvement needs and expenditures for the next 20 years. 2025 8SSO10574 8 616 26-MAR-26 Municipal(Public) 172608 2 7 2 1 4 3 2 1 0 1 N/A 3 328 2 79 18 1 0 0 100 10 90 0 0 0 0 100 371000 0 None 0 2 4 2 20 67 5 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 0 0 0 1 291.8 110.7 8 300112001 Groundwater Replenishment System - Advanced WTF, 18700 Ward Street, Fountain Valley, CA 92708-6930 WWTP other agency N N/A 0 0 21 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A No ongoing spill investigations. The District is nearing completion of an update to its Sewer Master Plan. The Master Plan update will evaluate existing flows, re-evaluate previously recommended but unfinished projects identified as deficient, and project future flow conditions. The objective of the updated Sewer Master Plan is to evaluate the system's capacity to accommodate future flow conditions including additional wastewater flow from the accessory dwelling units and the SB9 housing requirements. The Master Plan will also assess the impact of inflow and infiltration flow on the system. Additionally, the sewer hydraulic model will be updated and calibrated using flow data collected by monitoring devices. Other tasks will include assessments of the force mains and the suction and discharge pipes at the three District lift stations. The Sewer Master Plan will become the District's new planning document describing improvement needs and expenditures for the next 20 years. 2023 8SSO10602 8 616 02-APR-24 Municipal(Public) 311000 2 12 2 1 4 8 1 0 0 8 NA 0 389 21 57 20 2 0 0 100 0 0 0 0 0 0 0 45902 0 None 0 1 5 6 44 29 12 2 0 1 100 1 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 111 0 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency N Y Garden Grove City 8SSO10574 Y Orange City 8SSO10591 NA 0 0 45 Y Y Fats, Oil and Grease (FOG) NA Manhole NA NA Ongoing sewer cleaning, CCTV inspections, and sewer capacity evaluations. 2024 8SSO10602 8 616 30-MAR-26 Municipal(Public) 311000 2 10 2 1 2 10 1 1 0 0 N/A 0 392 21 57 20 2 0 0 100 0 0 0 0 0 0 0 46077 0 None 0 1 5 6 44 29 12 2 0 1 100 1 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 266 266 8303536001 Orange Cnty Sanitation Dist CS, , CA WWTP other agency N Y CITY OF GARDEN GROVE 8SSO10574 Y CITY OF ORANGE 8SSO10591 N/A 0 0 45 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A N/A Ongoing Sewer Maintenance (Cleaning) CCTV Inspection Services Sewer Capacity Evaluations 2025 8SSO10602 8 616 30-MAR-26 Municipal(Public) 311000 2 10 2 1 2 10 1 1 0 0 N/A 0 392 21 57 20 2 0 0 100 0 0 0 0 0 0 0 46077 0 None 0 1 5 6 44 29 12 2 0 1 100 1 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 325 325 8303536001 ORANGE COUNTY SANITATION DISTRICT WWTP other agency N Y CITY OF GARDEN GROVE 8SSO10574 Y CITY OF ORANGE 8SSO10591 N/A 0 0 45 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A N/A Ongoing Sewer Maintenance (Cleaning) CCTV Inspection Services Sewer Capacity Evaluations 2023 8SSO10590 8 616 04-APR-24 Municipal(Public) 83411 2 9 1 1 4 2 1 1 0 0 5 318 20 70 10 0 0 0 100 100 0 0 0 0 0 100 25525 25525 Lower only 121 0 10 15 40 20 10 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 2 3 8 4 2 0 0 1 20 1 160 7 8sso10590 Newport Beach City CS,949 W 16th ST, Newport Beach, CA 92658 WWTP other agency Y N Costa Mesa Sanitary District, 290 Paulorino Ave. Costa Mesa CA 8SSO10566 4 7 4 Y Y Root Intrusion Grease deposits. Wipes. Construction debris. Gravity Mainline No CCTV investigations. Emergency repairs. CIP Repairs. Upgraded cleaning schedule. 2024 8SSO10590 8 616 26-MAR-25 Municipal(Public) 83411 2 9 1 1 1 7 1 1 0 0 N/A 5 318 20 70 10 0 0 0 100 100 0 0 0 0 0 100 25525 25525 Lower only 121 0 10 15 40 20 10 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 2 3 8 5 2 0 0 1 21 1 205.4 17 8 300110002 001, , CA WWTP other agency Y N Costa Mesa Sanitary District, 290 Paulorino Ave. Costa Mesa, CA 8SSO10566 N/A 4 7 4 Y Y Root Intrusion Debris, F.O.G., Non-Disposable Wipes. Gravity Mainline N/A None CCTV investigations, Visual inspections, Emergency repairs, CIP projects, Pipe lining, constantly updating our cleaning and maintenance schedule. 2025 8SSO10590 8 616 17-MAR-26 Municipal(Public) 83411 1 8 1 1 1 6 1 1 0 0 N/A 5 318 20 70 10 0 0 0 100 99 1 0 0 0 0 100 25525 25525 Lower only 121 0 10 15 40 20 10 0 0 5 100 0 1 1 2 1 1 0 0 0 6 0 1 2 6 4 1 0 0 1 15 1 232 26 8 300110002 001, , CA WWTP other agency Y N Costa Mesa Sanitary District, 290 Paulorino Ave. Costa Mesa, CA 8SSO10566 N/A 4 7 4 Y Y Root Intrusion F.O.G., Non-disposable wipes, debris. Gravity Mainline N/A None CCTV inspections, man hole inspections, CIP projects, Mainline and lateral lining, mainline and lateral cleaning, lift station maintenance, maintenance of our 21 wet wells, and making repairs as needed. 2024 8SSO10605 8 616 11-DEC-25 Municipal(Public) 39000 3 2 2 1 0 0 0 0 0 0 Sanitary Sewer is maintenance is contracted out. 0 50.5 1 78 20 1 0 0 100 0 0 0 0 0 0 0 3000 7 None 1 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 102 10 8 300110002 Orange Cnty Sanitation Dist CS, , CA WWTP other agency N 0 0 14 N Y Fats, Oil and Grease (FOG) Gravity Mainline No on-going spill investigations Routine cleaning and maintenance, FOG inspections, and Sewer Rehabilitation Projects per Sewer Master Plan. 2025 8SSO10605 8 616 17-MAR-26 Municipal(Public) 39000 2 5 1 2 0 0 0 0 0 0 Sanitary Sewer maintenance is contracted out. 0 50.5 1 78 20 1 0 0 100 0 0 0 0 0 0 0 3000 7 None 1 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44.2 0 8303536001 Orange Cnty Sanitation Dist CS, , CA WWTP other agency N 0 0 14 Y Fats, Oil and Grease (FOG) Gravity Mainline No on-going spill investigations Routine cleaning and maintenance, FOG inspections, and Sewer Rehabilitation Projects per Sewer Master Plan. 2023 8SSO10545 8 616 22-DEC-25 Municipal(Public) 46791 0 6 1 1 0 0 0 0 0 0 N/A 0 100 5 86 8 1 0 0 100 0 0 0 0 0 0 0 11540 0 None 0 0 15 20 50 10 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 1 106 65 8SSO10545 City of Brea 545 N. Berry St. Brea, CA SSS same agency 8SSO10573 Fullerton City CS, 1580 West Commonwealth Avenue, Fullerton, CA 92833 SSS other agency 8SSO10593 Placentia City CS, 401 East Chapman Avenue, Placentia, CA 92670 SSS other agency 8 300110002 001, , CA WWTP other agency N N/A 4 0 1 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A None N/A 2024 8SSO10545 8 616 26-MAR-25 Municipal(Public) 48479 3 1 1 1 0 0 0 0 0 0 N/A 0 135 5 86 8 1 0 0 100 0 0 0 0 0 0 0 11540 0 None 0 0 15 20 50 10 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 1 132 25 8SSO10545 City of Brea 545 N. Berry St. Brea, CA SSS same agency 8SSO10573 Fullerton City CS, 1580 West Commonwealth Avenue, Fullerton, CA 92833 SSS other agency 8SSO10593 Placentia City CS, 401 East Chapman Avenue, Placentia, CA 92670 SSS other agency 8SSO10640 Orange County Sanitation 10844 Ellis Avenue Fountain Valley, CA 92708 SSS other agency N N/A 4 0 2 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A N/A N/A 2025 8SSO10545 8 616 24-FEB-26 Municipal(Public) 47994 2 2 1 1 0 0 0 0 0 0 N/A 0 135 5 86 8 1 0 0 100 0 0 0 0 0 0 0 11540 0 None 0 0 15 20 50 10 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 1 160 20 8SSO10545 City of Brea 545 N. Berry St. Brea, CA SSS same agency 8SSO10573 Fullerton City CS, 1580 West Commonwealth Avenue, Fullerton, CA 92833 SSS other agency 8SSO10593 Placentia City CS, 401 East Chapman Avenue, Placentia, CA 92670 SSS other agency 8SSO10640 Orange County Sanitation 10844 Ellis Avenue Fountain Valley, CA 92708 WWTP other agency N N/A 4 0 2 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A N/A N/A 2023 8SSO10546 8 616 20-MAR-24 Municipal(Public) 81998 2 2 0 1 0 1 1 1 0 0 Staff order study material through OWP CSUS and attended CWEA TCP prep sessions to prepare and take/pass certification. 0 168 7 80 13 0 0 0 100 0 0 0 0 0 0 0 12554 0 None 0 0 14 3 17 58 7 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62 41 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 9 Y Other (specify below) If we have a spill the cause typically is FOG in siphon, or if we had a spill from the main generally is roots/fog. Siphon NA NA For our siphon locations we clean quarterly and have installed smartcover systems on all siphon locations. We have also eliminated three siphons from our collection system. 2024 8SSO10546 8 616 25-MAR-25 Municipal(Public) 81998 3 1 0 1 1 1 1 1 0 0 N/A 0 168 7 80 13 0 0 0 100 0 0 0 0 0 0 0 12554 0 None 0 0 14 3 17 58 7 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 74 74 8SSO10640 Orange County Sanitation District 10844 Ellis Ave. Fountain Valley, CA 92708 WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 9 Y Y Fats, Oil and Grease (FOG) We have had no major spills. If we have a spill the cause typically is fog in siphon, or if we had a spill from the main gravity sewer generally is roots. But we have since mitigated both issues by installing smartcover systems on all siphons and have implemented a root control program in house. Siphon We have pro actively implemented annual CIP projects related to infrastructure maintenance by utilizing CIPP & UV Lining systems (10,000' to 18,000') per fiscal year. We also have a CIP project for manhole rehab on an annual basis rehabbing (50 to 135) manhole structures per fiscal year. NONE For our siphons/EMA (enhanced maintenance areas) we clean quarterly. 2025 8SSO10546 8 616 02-MAR-26 Municipal(Public) 81998 1 3 0 1 1 1 1 1 0 0 N/A 0 168 7 80 13 0 0 0 100 0 0 0 0 0 0 0 12554 0 None 0 0 14 3 17 58 7 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 33.6 8SSO10640 Orange County Sanitation District 10844 Ellis Ave. Fountain Valley, CA 92708 WWTP other agency N NA NA NA NA NA NA NA NA NA NA N/A 0 0 9 Y Y Fats, Oil and Grease (FOG) N/A Siphon N/A NONE Siphons are cleaned quarterly and also have smartcovers associated with them at each siphon location. 2023 8SSO10552 8 616 02-APR-24 Municipal(Public) 49243 0 4 2 2 0 0 0 0 0 0 N/A 1 101 1 97 1 1 0 0 100 0 100 0 0 0 0 100 12000 0 None 0 0 5 19 64 11 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 5 51 20 N/A Orange County Sanitation District WWTP other agency N Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 6. City of Cypress 8SSO10552 7. City of Cypress 8SSO10552 8. City of Cypress 8SSO10552 9. City of Cypress 8SSO10552 10. City of Cypress 8SSO10552 0 0 0 Y Y Fats, Oil and Grease (FOG) NONE Other (specify below) NONE NONE Ongoing routine maintenance, cleaning, inspection, and capital projects to reline and/or replace condition and capacity deficient pipes. 2025 8SSO10552 8 616 24-MAR-26 Municipal(Public) 49243 0 4 2 2 0 0 0 0 0 0 N/A 1 101 1 97 1 1 0 0 100 0 100 0 0 0 0 100 12000 0 None 0 0 5 19 64 11 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 5 5 20 N/A Orange County Sanitation District WWTP other agency N Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 Y City of Cypress 8SSO10552 6. City of Cypress 8SSO10552 7. City of Cypress 8SSO10552 8. City of Cypress 8SSO10552 9. City of Cypress 8SSO10552 10. City of Cypress 8SSO10552 0 0 0 Y Y Fats, Oil and Grease (FOG) NONE Other (specify below) NONE NONE Ongoing routine maintenance, cleaning, inspection, and capital projects to reline and/or replace condition and capacity deficient pipes. 2023 8SSO10572 8 616 28-MAR-24 Municipal(Public) 57000 0 3 2 2 2 1 2 1 0 0 N/A 0 133 2 85 8 5 0 0 100 0 0 0 0 0 0 0 16500 312 None 0 1 5 5 89 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 82 22 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP other agency 8SSO10578 Huntington Beach City CS, 19001 Huntington Street, Huntington Beach, CA 92648-2211 SSS other agency 8SSO10588 Midway City SD CS, , CA SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A No 7 0 11 Y Y Fats, Oil and Grease (FOG) Gravity Mainline N/A Ongoing main line repair, replacement, or Lining CIP projects. On-going manhole coating CIP projects as well as Proactive maintenance and inspection. 2024 8SSO10572 8 616 08-OCT-25 Municipal(Public) 57000 1 3 2 2 2 1 3 1 0 0 N/A 0 133 1 89 9 1 0 0 100 0 100 0 0 0 0 100 16500 312 None 0 1 3 44 50 1 1 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 73.2 10.2 8 300110002 OCSAN Treatment Plant #1, CA WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A NO 7 0 11 Y Y Fats, Oil and Grease (FOG) Gravity Mainline N/A CIP MANHOLES REHAB REPLACEMENT OR COATING, CIP PROJECT ON DEFICIENCY SEWER MAIN LINES, PREVENTATIVE MAINTENANCE, PROACTIVE INSPECTIONS. 2025 8SSO10572 8 616 23-MAR-26 Municipal(Public) 58000 1 3 3 2 3 0 2 2 0 0 N/A 0 133 1 89 9 1 0 0 100 0 100 0 0 0 0 100 16500 312 None 0 1 3 44 50 1 1 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 81.5 10.3 8 300110002 001, , CA WWTP other agency 8SSO10578 Huntington Beach City CS, 19001 Huntington Street, Huntington Beach, CA 92648-2211 SSS other agency 8SSO10588 Midway City SD CS, , CA SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A NO 7 0 11 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A CIP MANHOLES REHAB REPLACEMENT OR COATING, CIP PROJECT ON DEFFIICIIENCY SEWER MAIIN LINES, PREVENTTATIIVE MAINTENANCE, PROACTIVE INSPECTIONS. 2023 8SSO20044 8 616 25-MAR-24 Municipal(Public) 141620 3 9 0 1 4 1 0 1 0 5 No other. 0 330 5 80 13 2 0 0 100 0 0 0 0 0 0 0 29096 54 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 282 66 8 300110002 OC Sanitation District 10844 Elllis Ave, Fountain Valley, CA 92708 SSS same agency Y N City of Anaheim 8SSO10542 N City of Brea 8SSO10545 N City of La Habra 8SSO10583 N City of Placentia 8SSO10593 We only have four tributary systems. 23 0 33 N Y Other (specify below) We had no spills this past year. Other (specify below) We had no spills this past year. We have no ongoing spill investigation. We CCTV our system every five years and all deficiencies are looked at and added to our CIP list for repairs or sections to be replaced. When we have a spill, it is our procedure to follow up with a CCTV inspection. If repairs are needed, we follow up with our on-call contractor or with Engineering to have the sewer main repaired. If no repairs are needed, we will place that section on our Special Project list. That list is cleaned monthly or every 3,6,9 0r 12 months. 2024 8SSO20044 8 616 24-MAR-25 Municipal(Public) 139461 4 9 1 1 5 2 0 1 0 8 No other 0 330 5 80 13 2 0 0 100 0 0 0 0 0 0 0 29096 54 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 318.7 64 8 300110002 OC Sanitation District 10844 Ellis Ave, Fountian Valley, CA SSS same agency N N City of Anaheim 8SSO10542 N City of Brea 8SSO10545 N City of La Habra 8SSO10583 N City of Placentia 8SSO10593 We only have 4 tributary systems. 23 0 36 N Y Other (specify below) We had no major spills this past year. Other (specify below) We had system infrastructure failures this past year. We have no ongoing spill investigations. We CCTV our system every five years and all deficiencies are looked at and added to our CIP list for repairs or sections to be replaced. When we have a spill, it is our procedure to follow up with a CCTV inspection. If repairs are needed, we follow up with our on-call contractor or with Engineering to have the sewer main repaired. If no repairs are needed, we will place that section on our Special Project list. That list is cleaned monthly or every 3,6,9 0r 12 months. 2025 8SSO20044 8 616 16-MAR-26 Municipal(Public) 143620 2 12 1 1 4 2 0 1 0 7 No Other 0 330 5 80 13 2 0 0 100 0 0 0 0 0 0 0 29096 54 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 303 63 8 300110002 OC Sanitation District 10844 Ellis Ave., Fountain Valley, CA SSS same agency Y N City of Anaheim 8SSO10542 N City of Brea 8SSO10545 N City of La Habra 8SSO10583 N City of Placentia 8SSO10593 We only have 4 tributary system 23 0 36 N Y Other (specify below) No spills this past year. Other (specify below) No infrastructure failure this past year No On-going spill investigation's this past year We perform CCTV inspections on our entire sewer system every five years. All identified deficiencies are reviewed and added to our Capital Improvement Program (CIP) list for repair or replacement. Following any spill event, it is our procedure to conduct follow-up CCTV inspections on the affected sewer main. • If repairs are required, we coordinate with our on-call contractor or with Engineering to have the necessary work completed. • If no repairs are needed, the line segment is added to our Special Projects List for enhanced monitoring. Sections on the Special Projects List are scheduled for cleaning on a rotating basis at intervals of 1, 3, 6, 9, or 12 months, depending on need. 2023 8SSO10578 8 616 03-APR-24 Municipal(Public) 201000 6 10 5 1 5 3 2 3 1 0 CWEA 3 360 1 84 14 1 0 0 100 90 10 0 0 0 0 100 630 300 Lower only 300 3 24 67 3 2 1 0 0 0 100 2 1 7 0 0 0 0 0 0 10 7 0 10 0 0 0 0 0 0 17 81 71 154 8SSO10578 Huntington Beach City CS, 19001 Huntington Street, Huntington Beach, CA 92648-2211 WWTP other agency Y N Sunset Beach Sanitary District SSO10625 N Midway City Sanitary District 8SSO10588 N City of Fountain Valley 8SSO10572 n/a 31 8 97 Y Y Other (specify below) Various causes: mechanical pump failure, flushable wipes, grease, calcium build up Other (specify below) Typically at the lower lateral or mainline None FOG program for grease, replacement/rehabilitation of pipe with calcium build-up 2024 8SSO10578 8 616 27-MAR-25 Municipal(Public) 194310 3 10 5 1 6 3 1 3 0 3 Mechanical Technologist II. Plant Technologist I. 3 360 1 83 15 1 0 0 100 90 10 0 0 0 0 100 53337 53337 Lower only 303 3 3 24 67 3 2 1 0 0 103 2 1 7 0 0 0 0 0 0 10 7 0 10 0 0 0 0 0 0 17 0 491 70.2 8 300110002 OCSAN 22212 Brookhurst Street, Huntington Beach WWTP other agency Y N Sunset Beach Sanitary District 8SSO10625 N Midway City Sanitary System 8SSO10588 N City of Fountain Valley 8SSO10572 NA 31 8 37 Y Other (specify below) NA- no major spills. Other (specify below) NA NA FOG program for grease, replacement of pipe and rehab for calcium build-up. 2025 8SSO10578 8 616 24-MAR-26 Municipal(Public) 194310 3 10 5 1 6 3 1 3 0 3 Mechanical Technologist II. Plant Technologist I. 3 360 1 83 15 1 0 0 100 90 10 0 0 0 0 100 53337 53337 Lower only 303 3 3 21 67 3 2 1 0 0 100 2 1 7 0 0 0 0 0 0 10 7 0 10 0 0 0 0 0 0 17 0 511 79 8 300110002 OC SAN 22212 Brookhurst Street, Huntington Beach, CA WWTP other agency Y N Sunset Beach Sanitary District 8SSO10625 N Midway City Sanitary System 8SSO10588 N City of Fountain Valley 8SSO10572 NA 31 8 37 Y Other (specify below) NA- No major spills. Other (specify below) NA NA FOG program for grease. replacement of pipe and rehab for calcium build-up. 2024 8SSO10583 8 616 27-MAR-25 Municipal(Public) 63118 1 2 1 1 2 3 0 0 0 0 NA 0 125 2 87 10 1 0 0 100 0 0 0 0 0 0 0 13600 0 None 0 0 1 3 40 55 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 42.6 35.4 8 300110002 Orange County Sanitation District, 22212 Brookhurst St., Huntington Beach, CA 92646 WWTP same agency N N NA 0 0 23 Y Y Debris-Rags Manhole NA Increased line cleaning, and implement capital projects including point repairs and pipe lining. 2025 8SSO10583 8 616 16-MAR-26 Municipal(Public) 63118 0 3 1 1 2 3 0 0 0 0 NA 0 125 2 87 10 1 0 0 100 0 0 0 0 0 0 0 13600 0 None 0 0 1 3 40 55 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 48.7 39.9 8 300110002 Orange County Sanitation District, 22212 Brookhurst St., Huntington Beach, CA 92646 WWTP same agency N N NA NA NA 0 0 23 Y Debris-Rags Gravity Mainline None SmartCover alert notification on select manholes, point repairs, segment lining. 2023 8SSO10591 8 616 06-MAR-24 Municipal(Public) 136718 11 14 4 3 16 0 2 0 0 0 N/A 1 313 8 77 13 2 0 0 100 100 0 0 0 0 0 100 33036 0 None 0 0 6 18 50 12 12 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 77 38 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency Y N Villa Park Collection System 8SSO10635 N/A 2 0 14 N Y Root Intrusion N/A Manhole N/A None City performed lining repairs at four (4) locations and replaced approximately 4,750 linear feet during the calendar year. 2024 8SSO10591 8 616 03-MAR-25 Municipal(Public) 138337 9 15 4 3 16 0 2 0 0 0 .1 313 8 77 13 2 0 0 100 100 0 0 0 0 0 100 33062 0 None 0 0 7 22 52 13 4 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 76 40 8SSO10640 Orange County Sanitation District WWTP other agency Y N Villa Park Collection System 8SSO10635 2 0 14 Y Y Debris-wipes/Non-disposables Manhole None City replaced 6,348 LF of 6 VCP with 8 VCP and reconstructed 6 manhole access points. 2025 8SSO10591 8 616 26-FEB-26 Municipal(Public) 138337 11 14 4 3 13 0 2 0 0 0 NA .1 313 7 78 13 2 0 0 100 100 0 0 0 0 0 100 33056 0 None 0 1 6 21 52 14 4 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 92 85 8SSO10640 Orange County Sanitation District WWTP other agency Y N Villa Park Collection System 8SSO10635 NA 2 0 14 Y Y Debris-wipes/Non-disposables NA Manhole NA None Replaced 5,441 LF of 6 VCP with 8 VCP and repaired/replaced 17 brick manholes with liners. 2023 8SSO10604 8 616 19-MAR-24 Municipal(Public) 24647 1 5 1 3 6 0 0 0 0 0 3 32 10 75 8 7 0 0 100 77 0 23 0 0 0 100 5000 0 None 0 1 4 3 52 30 10 0 0 0 10 0 3 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 25 10 8-300110002 Orange County Sanitation District WWTP same agency Y N City of Huntington Beach 8SS010578 N Rossmoor-Los Alamitos Area Sewer District 8SSO10596 N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Controls N/A None Multiple capital improvement projects have been programed into future budgets including: pump station upgrades, lift station improvements, and mainline improvements. 2024 8SSO10604 8 616 17-DEC-25 Municipal(Public) 24647 2 6 1 5 5 0 0 0 0 0 None 3 32 10 75 8 7 0 0 100 77 0 23 0 0 0 100 5000 0 None 0 1 4 3 52 30 10 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 0 0 3 0 9 0 8 300110002 Orange County Sanitation District, 10844 Ellis Avenue Fountain Valley, CA 92708 WWTP other agency Y N City of Huntington Beach 8SS010578 N Rossmoor-Los Alamitos Area Sewer District 8SSO10596 N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Controls N/A None Several capital improvement projects have been included in future budgets including: upgrades to pump stations, rehabilitation of lift stations, and enhancements to the mainline infrastructure. 2025 8SSO10604 8 616 01-APR-26 Municipal(Public) 25242 2 6 1 5 4 0 0 0 0 0 None 3 32 10 75 8 7 0 0 100 77 0 23 0 0 0 100 5000 0 None 0 1 4 3 52 10 10 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 0 0 3 0 9 0 8 300110002 Orange County Sanitation District, 10844 Ellis Avenue Fountain Valley, CA 92708 WWTP other agency Y N City of Huntington Beach 8SSO10578 N Rossmoor-Los Alamitos Sewer District 8SSO10596 N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Controls N/A None Several capital improvement projects have been included in future budgets including: upgrades to pump stations, rehabilitation of lift stations, and enhancements to the mainline infrastructure. 2023 8SSO10587 8 616 28-MAR-24 Municipal(Public) 317506 0 23 5 2 5 8 7 3 0 1 11 884 6 76 13 3 1 0 100 6 2 90 1 0 0 100 52032 0 None 267 0 49 33 18 1 0 0 0 1 100 0 2 2 0 0 0 0 0 0 4 0 1 0 0 0 0 0 0 0 1 7 295 88 8 302006002 Michelson WRP, 3512 Michelson Dr, Irvine CA WWTP other agency Y Y UC Irvine 8SSO10630 526 16 11 Y Y Vandalism (specify below) Gravity Mainline None. Impacted areas have been added to the high maintenance cleaning schedule, lockable composite lids have been added to impacted system areas. 2024 8SSO10587 8 616 31-MAR-25 Municipal(Public) 315625 2 34 7 2 1 8 7 3 0 2 14 891 6 76 13 3 1 0 100 6 2 91 1 0 0 100 52956 0 None 271 3 46 33 17 1 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 1 0 0 0 0 0 0 0 1 7 336 15 8 302006002 001, , CA WWTP same agency Y Y UC Irvine 8SSO10630 526 16 11 Y Y Vandalism (specify below) Gravity Mainline None. Impacted areas have been added to the high maintenance cleaning schedule, lockable composite lids have been added to impacted system areas. 2025 8SSO10587 8 616 01-APR-26 Municipal(Public) 317506 10 26 7 2 12 6 2 3 0 0 E&I Grade 2 - 4 persons, E&I Grade 3 - 2 persons, E&I Grade 4 - 4 persons Mech Grade 3 - 2 persons, Mech Grade 4 - 1 person 14 901 6 77 13 3 1 0 100 6 2 91 1 0 0 100 57152 0 None 288 5 46 32 17 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 401 91 8 302006002 Michelson WRP WWTP same agency Y N UC Irvine 8SSO10630 526 16 11 Y Y Root Intrusion Other (specify below) None. None. Root treatment to be performed system wide starting March 2026. 2023 8SSO10641 8 616 21-MAR-24 Municipal(Public) 68319 2 15 4 2 3 8 0 2 0 0 N/A 1 269 5 82 12 1 0 0 100 0 0 0 0 0 0 0 23617 0 None 0 1 15 38 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 53 63 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency 8SSO10593 Placentia City CS, 401 East Chapman Avenue, Placentia, CA 92670 SSS other agency Y N Placentia 8SSO10593 N/A 0 0 16 Y Y Root Intrusion N/A Gravity Mainline N/A None at this time. Aggressive CCTV program and strict coordination with cleaning crews. Chemical root control program with services provided by Duke's Root Control. In-house and contracted trenchless sectional rehab work to gravity mainlines to address minor structural defects. Manhole frame and cover replacements with locking covers in high-risk areas. 2024 8SSO10641 8 616 19-NOV-25 Municipal(Public) 68319 2 17 3 2 3 7 0 1 0 0 N/A .2 269.5 5 82 12 1 0 0 100 0 0 0 0 0 0 0 23714 0 None 0 1 15 38 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 73.5 63.6 8 300110002 001, , CA WWTP other agency Y N Placentia 8SSO10593 N/A 0 0 16 Y Y Root Intrusion Gravity Mainline None at this time. Continuing with our CCTV program and strict coordination with our cleaning crews. Chemical root control program with Dukes Root Control. In-house and contracted trenchless sections rehab work to gravity mainlines to repair minor structural defects. 2025 8SSO10641 8 616 12-MAY-26 Municipal(Public) 84000 3 16 4 2 4 10 0 1 0 0 NA .2 269.7 5 82 12 1 0 0 100 100 0 0 0 0 0 100 23714 0 None 0 1 15 38 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 66.5 75.9 8 300110002 001, , CA WWTP other agency Y N Orange County Sanitation District 8SSO10640 N City of Placentia 8SSO10593 NA 0 0 16 Y Y Vandalism (specify below) When reviewing our spill history, most major spills were caused by vandalism - large items being placed into sewer manholes that obstructed flow. The second leading cause of spills in our system would be root intrusion. Manhole Manholes are the ingress point for vandalism attempts. Root intrusion typically occurs within a gravity main segment. There are no ongoing spill investigations as of the writing of this report. Manholes identified as high risk to acts of vandalism are gradually being replaced with locking composite manhole frames and cover. Our aggressive video inspection schedule and contracted chemical root control treatment program aims to control root intrusion at the mains. 2023 8SSO10588 8 616 26-MAR-24 Municipal(Public) 100000 1 5 1 1 4 0 0 0 0 0 NA 1 174 0 93 6 0 0 0 99 0 0 1 0 0 0 1 35000 0 None 0 0 5 5 60 30 0 0 0 0 100 0 4 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 1 115 1 8 300110002 Orange County Sanitary District WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 7 0 33 Y Y Fats, Oil and Grease (FOG) NA Pump Station - Controls NA NA District's Contractor is cctving all the District's sewer lines. They will finish by the end of 2024. District's Consultant is working on updating SSMP. They will finish by the end of 2024. 2024 8SSO10588 8 616 31-MAR-25 Municipal(Public) 103000 1 4 1 2 9 2 0 0 0 0 (5) NASSCO PACP/LACP/MACP certification. 2.5 162.4 0 89 11 0 0 0 100 1 27 72 0 0 0 100 35840 0 None 0 0 3 0 46 50 0 0 0 1 100 0 4 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 130 160.6 8 300110002 Orange County Sanitation District treatment plan WWTP other agency 8SSO10640 Orange County Sanitation District collection system SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 7 0 24 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Mechanical N/A N/A The District’s contractor completed CCTV inspection of all the District’s sewer lines in January 2025. The District is currently reviewing the footage. The District’s consultant completed the updates to the SSMP and Capacity Analysis in March 2025. The District is currently reviewing the recommendations. 2025 8SSO10588 8 616 18-MAR-26 Municipal(Public) 103000 2 3 1 2 7 2 1 0 0 0 (4) NASSCO PACP/LACP/MACP certification. (1) NASSCO CIPP Inspection certification. 2.5 162.4 0 89 11 0 0 0 100 1 27 72 0 0 0 100 36127 0 None 0 1 3 0 45 50 0 0 0 1 100 0 4 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 130 1 8 300110002 Orange County Sanitation District treatment plan WWTP other agency 8SSO10640 Orange County Sanitation District collection system SSS other agency Y N City of Garden Grove Sanitary Sewer 8SSO10574 N NA NA N NA NA N NA NA N NA NA NA 7 0 24 Y Y Fats, Oil and Grease (FOG) NA Pump Station - Controls NA NA 1- A contractor is hired to fix the siphon issues at Westminster Blvd and Springdale Street. 2- A contractor is hired to line 35 sewer segments with CIPP. 3- A consultant is hired for Sewer Condition Assessment Project. 4- A consultant will be hired to update Sewer Standard Specifications and details. 5- Yearly manhole adjustment to the grade are performed. 6- Monthly hotspot jetting. 2023 8SSO10625 8 616 02-APR-24 Municipal(Public) 1500 0 2 1 1 0 0 0 0 0 0 0 1 5 5 85 10 0 0 0 100 100 0 0 0 0 0 100 2452 1226 Lower only 1 5 10 0 0 0 85 0 0 0 100 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5 5 8 302015004 City of Huntington Beach 2000 Main St. Huntington Beach CA 92649 SSS other agency 8 300110002 Orange County Sanitation District 10844 Ellis Ave. Fountain Valley 92708 WWTP same agency N 1 0 1 Y Y Debris-General Pump Station - Mechanical None. Construction of new sewer main and abandonment of existing pump station scheduled for Fall 2024. 2024 8SSO10625 8 616 01-APR-25 Municipal(Public) 1500 0 2 1 1 0 0 0 0 0 0 N/A 1 5 5 85 10 0 0 0 100 100 0 0 0 0 0 100 2440 1220 None 1 5 10 0 0 0 85 0 0 0 100 0 0 0 0 0 100 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 .5 8 302015004 City of Huntington Beach, 2000 Main St., Huntington Beach, CA 92648 SSS other agency 8 300110002 Orange County San Dist, 18480 Bandilier Cir., Fountain Valley, CA 92708 WWTP other agency N N/A 1 0 1 Y Y Debris-General Pump Station - Mechanical None. Construction of new gravity sewer main allowing for the abandonment of existing pump station scheduled for completion Spring 2026. 2023 8SSO10566 8 616 20-MAR-24 Municipal(Public) 118300 1 5 2 2 5 1 1 2 0 0 NA 5 219 1 85 13 1 0 0 100 24 31 45 0 0 0 100 24955 0 None 0 0 1 5 34 60 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 2 9 8 0 0 0 0 19 0 202 3575 8SSO10640 Orange Cnty Sanitation Dist CS, , CA SSS other agency N NA 0 0 10 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA No The district will be installing a structural liner and the pipe segment is on an annual cleaning cycle where it's cleaned once a year. 2024 8SSO10566 8 616 30-DEC-25 Municipal(Public) 1118000 1 5 3 2 2 3 1 5 0 0 12 staff are NASSCO certified in the PACP, MACP, LACP 5 219 1 85 13 1 0 0 100 24 31 45 0 0 0 100 24955 0 None 0 0 1 5 34 60 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 2 9 8 0 0 0 0 19 0 201.4 .6 8 300110002 001, , CA WWTP other agency N 5 0 8 Y Y Debris-General Gravity Mainline Sewer plug from private plumber clogged mainline No CCTV mainline to ensure no obstruction in mainline. 2025 8SSO10566 8 616 11-MAR-26 Municipal(Public) 118300 0 7 2 3 3 2 1 4 0 0 1 employee hold CWEA Electrical & Instrumentation Technologist Grade 4 1 employee hold CWEA Electrical & Instrumentation Technologist Grade 1 11 employees hold NASSCO PACP, MACP & LACP certifications 5 219 1 85 13 1 0 0 100 24 31 45 0 0 0 100 24955 0 None 0 0 1 5 34 60 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 2 9 8 0 0 0 0 19 0 219 .8 8 300110002 001, , CA WWTP same agency N N N NA NA N NA NA N NA NA N NA NA NA 0 0 10 Y Y Damage by Others Not Related to Collection System Construction/Maintenance A private contractor struck a Mesa Water District (MWD) mainline. The break caused a significant loss of water resulting in drop in water pressure across portion of MWD service area. When pressure was restored, a sudden surge occurred, leading to multiple pipe bursts throughout the community. The force of the rupture lifted the street pavement and caused two CMSD sewer manhole frames and covers to separate from their structure. This allowed potable water to enter the public sewer system through 2-4 inch gap between the frame and manhole body. Gravity Mainline NA No Stay on schedule for cleaning pipe line segment annually. Due to sick leave, vacation, and training, staff fell behind on cleaning schedule. The District spent nearly $18,000 in overtime to get caught up on cleaning schedule and achieve cleaning the entire sewer system by 12-31-25. 2023 8SSO10570 8 616 21-MAR-24 Municipal(Public) 47911 3 27 5 2 0 0 4 0 2 0 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 60 21 8SSO10570 El Toro Water District R8 CS, 23542 Moulton Parkway , Laguna Woods, CA SSS same agency N N/A 12 1 9 Y Debris from Construction N/A Gravity Mainline N/A None. The one spill we had was at our Plant and due to a contractor most of the spill was recovered. Spill was cleaned up immediately by shutting spill gate and using vactor to suck up the majority of it. 2024 8SSO10570 8 616 17-DEC-25 Municipal(Public) 47911 1 24 5 2 1 0 3 3 1 0 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 60 21 8 303652001 El Toro Water Dist WWRF, 23542 Moulton Parkway, Laguna Hills, CA 92653 WWTP same agency N N/A 12 1 9 N Y Other (specify below) We didn't have any major spills Gravity Mainline N/A None Line Cleaning, T.V., and Repairs 2025 8SSO10570 8 616 03-MAR-26 Municipal(Public) 47911 1 16 10 1 1 7 9 8 3 0 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 72.1 22.4 8SSO10570 El Toro Water District CS, 23542 Moulton Parkway, Laguna Woods CA SSS same agency N N/A 12 1 9 N Y Other (specify below) We didn't have any major spills Gravity Mainline N/A None Line Cleaning, T.V, Repairs, and Hot Spots 2023 8SSO10617 8 616 27-MAR-24 Municipal(Public) 674407 2 16 3 1 1 18 2 0 1 0 Certified through CWEA for Collections System Maintenance, and Plant Maintenance-Mechanical Technologist/Electrical/Instrumentation 59 1146 3 67 18 7 1 0 96 1 1 1 1 0 0 4 106136 0 None 0 4 38 44 14 0 0 0 0 0 100 0 27 12 3 0 0 0 0 0 42 2 36 17 3 0 0 0 0 0 58 0 301 37 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto CA, 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA, 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley CA, 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvarado, Temecula CA, 92590 WWTP same agency Y N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N/A 0 0 7 Y Y Vandalism (specify below) The majority of our spill are caused by vandalism Other (specify below) The majority of our spills are caused by vandalism that usually manifest at a manhole None SSMP Audit and SSMP Plan Update 2024 8SSO10617 8 616 01-APR-25 Municipal(Public) 940402 2 16 3 1 1 18 2 0 1 0 Certified through CWEA for Collections System Maintenance, and Plant Maintenance-Mechanical Technologist/Electrical/Instrumentation. 60.5 880 3 67 18 7 1 0 96 1 1 1 1 0 0 4 109180 0 None 0 6 38 42 14 0 0 0 0 0 100 0 27 12 3 0 0 0 0 0 42 2 36 17 3 0 0 0 0 0 58 0 476 43 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto CA, 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA, 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley CA, 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvarado, Temecula CA, 92590 WWTP same agency Y N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N Rancho California Water District 9SSO10699 N Western Municipal Water District 8SSO10637 0 0 7 Y Y Debris-General Force Main Yes (Spill ID 898423) SSMP Plan Update 2025 8SSO10617 8 616 31-MAR-26 Municipal(Public) 856147 6 17 4 3 10 12 3 3 0 0 Certified through CWEA for Collections System Maintenance and Plant Maintains -Mechanical Technologist/Electrical/Instrumentation. 61.2 1181.8 3 68 18 6 1 0 95 1 1 1 2 0 0 5 111168 0 None 0 7 37 42 14 0 0 0 0 0 100 2 21 10 1 0 0 0 0 0 34 0 4 0 0 0 0 0 0 0 4 0 407 45 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto, CA 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley, CA 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvardo, Temecula, CA 92590 WWTP same agency Y N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N Rancho California Water District 9SSO10699 N Western Municipal Water District 8SSO10637 7 1 7 Y Y Debris-General Force Main No Surge analysis and surge tank project. 2023 9SSO10570 9 616 21-MAR-24 Municipal(Public) 47911 2 27 5 2 0 0 4 0 2 0 NA 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 60 21 9SSO10570 El Toro Water District R8 CS, 23542 Moulton Parkway , Laguna Woods, CA SSS same agency N 12 1 9 Y Root Intrusion N/A Other (specify below) Usually, customer or upper laterals N/A Collections crew go to the spots where the lateral get clogged and cut them and add ROOTX to the lateral. 2024 9SSO10570 9 616 18-DEC-25 Municipal(Public) 47911 1 24 5 2 1 0 3 3 1 0 N/A 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 60 21 8 303652001 El Toro Water Dist WWRF, 23542 Moulton Parkway, Laguna Hills, CA 92653 WWTP same agency N N/A 12 1 9 N Y Other (specify below) We didn't have any major spills Other (specify below) Customer or upper laterals None Root X, T.V., and Line Cleaning 2025 9SSO10570 9 616 03-MAR-26 Municipal(Public) 47911 1 16 10 1 1 7 9 8 3 0 N/A 6 114 13 70 13 4 0 0 100 6 22 72 0 0 0 100 38 9549 Lower only 38 3 7 90 0 0 0 0 0 0 100 1 0 7 0 0 0 0 0 0 8 0 0 3 0 0 0 0 0 0 3 4 72.1 22.4 9SSO10570 El Toro Water District R8 CS, 23542 Moulton Parkway, Laguna Woods CA SSS same agency N N/A 12 1 9 N Y Other (specify below) We didn't have any major spills Other (specify below) Customer or upper laterals None Line Cleaning, T.V., Root X, Hot Spots 2023 8SSO10596 8 616 02-APR-24 Municipal(Public) 12000 0 0 0 1 0 0 0 0 0 0 0 0 57 0 89 11 0 0 0 100 0 0 0 0 0 100 100 7514 0 None 0 0 1 2 34 63 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 19350 8 300110002 Orange County Sanitation District SSS other agency 8SSO10604 Seal Beach City CS, , Seal Beach, CA SSS other agency N N N/A 0 0 0 N Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a n/a More monitoring and CCTV done in trouble areas to maintain lines before overflow. 2023 5SSO11279 5F 616 03-DEC-25 Municipal(Public) 2503 0 3 1 2 1 1 1 0 0 3 0 0 9 26 58 16 0 0 0 100 0 0 0 0 0 0 0 758 758 Lower only 4 0 11 8 81 0 0 0 0 0 100 1 2 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 1 0 5D100121001 Caruthers CS, Clemenseau , Caruthers, CA 93609 WWTP same agency N 0 0 0 N Y Other (specify below) none Other (specify below) none none lift station replacements over the past 10 years 2025 5SSO11279 5F 616 24-APR-26 Municipal(Public) 2603 1 3 1 2 2 1 1 0 0 4 0 0 9 26 58 16 0 0 0 100 0 0 0 0 0 0 0 758 758 Lower only 1 0 11 8 81 0 0 0 0 0 100 1 2 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 1 0 5D100121001 Caruthers CS, Clemenseau , Caruthers, CA 93609 WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None Lift station upgrades over the years 2024 5SSO20057 5F 616 17-JUN-24 Municipal(Public) 3310 1 1 1 0 1 0 1 0 0 0 Pixley PUD has three employees: 1 with OIT; 1 with Grade 1 in wastewater, water treatment and distribution each; 1 with Grade 3 in wastewater and Grade 2 in water treatment and distribution each. 0 10.3 2 77 21 0 0 0 100 0 0 0 0 0 0 0 704 2 None 0 3 2 1 7 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 1 0 R5-2007-0123 Pixley Pubic Utility District WWTP same agency N 0 0 1 N N Other (specify below) Did not have a spill. Other (specify below) none none n/a 2023 1SSO10001 1 616 13-MAR-24 Municipal(Public) 19114 1 6 2 1 3 0 0 1 0 0 NA 2 61 65 18 7 5 0 5 100 100 0 0 0 0 0 100 5433 1553 Lower only 31 1 3 8 26 18 40 4 0 0 100 1 0 0 0 0 0 0 0 0 1 3 0 5 2 0 0 0 0 0 10 13 11 1 1B82114OHU City of Arcata WWTP same agency Y N Fieldbrook/Glendale Unknown NA 0 0 0 Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole NA None CCTV + Cleaning; Ongoing Capital Improvement Projects. 2024 1SSO10001 1 616 09-JUL-25 Municipal(Public) 19160 2 7 2 1 3 0 0 1 0 0 NA 2 61 65 18 7 5 0 5 100 100 0 0 0 0 0 0 5433 1553 Lower only 31 1 3 8 26 18 40 4 0 0 100 1 0 0 0 0 0 0 0 0 1 3 0 5 2 0 0 0 0 0 10 13 13.3 13.3 1B82114OHU City of Arcata WWTP same agency Y N Fieldbrook/Glendale Unknown NA 0 0 0 Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole NA We are assessing our system for the major pinch points that are causing the majority of our spills. This is on the City's radar and part of our 5 yr CIP planning The city completed a $300,000 CCTV contract in 2025 of 72,000 feet of the collection system to identify problematic areas to be addressed in the City's CIP. 2025 1SSO10001 1 616 27-MAR-26 Municipal(Public) 19160 2 7 2 1 3 0 0 1 0 0 N/A 2 61 65 18 7 5 0 5 100 100 0 0 0 0 0 100 5433 1533 Lower only 31 1 3 8 26 18 40 4 0 0 100 1 0 0 0 0 0 0 0 0 1 3 0 5 2 0 0 0 0 0 10 13 8.3 9.2 1B82114OHU City of Arcata WWTP same agency N N Fieldbrook/Glendale Unknown N/A 0 0 0 N Y Flow Exceeded Capacity (Separate Collection System Only) N/A Manhole N/A We are assessing our system for the major pinch points that are causing the majority of our spills. This is on the City's radar and part of our 5 yr CIP planning The city completed a $300,000 CCTV contract in 2025 of 72,000 feet of the collection system to identify problematic areas to be addressed in the City's CIP. 2023 1SSO10003 1 616 22-DEC-25 Municipal(Public) 912 1 3 0 0 2 1 0 0 0 0 1.9 15.6 92 0 8 0 0 0 100 100 0 0 0 0 0 100 1114 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 0 1B75028OSON Bodega Bay Wastewater Reclamation Facility, 265 Doran Park Road, Bodega Bay, CA 94923 WWTP same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Controls Gravity Mainline None CCTV Investigation Capital Improvement Program 2024 1SSO10003 1 616 22-DEC-25 Municipal(Public) 912 1 3 0 0 2 1 0 0 0 0 1.9 15.6 92 7 8 0 0 0 100 100 0 0 0 0 0 100 1114 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 0 1B75028OSON Bodega Bay Wastewater Reclamation Facility, 265 Doran Park Road, Bodega Bay, CA 94923 WWTP same agency N 0 0 0 N Y Other (specify below) Pipe collapse or root intrusion Gravity Mainline None CCTV Investigation Capital Improvement Program 2025 1SSO10003 1 616 30-MAR-26 Municipal(Public) 912 1 3 0 0 2 1 0 0 0 0 1.9 15.6 92 7 8 0 0 0 100 100 0 0 0 0 0 100 1122 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 0 1B75028OSON Bodega Bay Wastewater Reclamation Facility, 265 Doran Park Road, Bodega Bay, CA 94923 WWTP same agency N 0 0 0 N Y Other (specify below) Pipe collapse or root intrusion Gravity Mainline None CCTV Investigation Capital Improvement Program 2023 1SSO10004 1 616 22-MAR-24 Municipal(Public) 350 1 3 1 1 0 0 0 0 0 4 N/A 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 0 50 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1SSO10004 Calpella CA WD CS, , Calpella, CA 95418 WWTP same agency N N/A 1 0 0 N Y Other (specify below) No Spills Other (specify below) No Failures N/A N/A 2024 1SSO10004 1 616 08-JAN-25 Municipal(Public) 350 1 3 1 1 0 0 0 0 0 4 N/A 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 0 50 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1SSO10004 Calpella CWD 5681 N. State St. Ukiah, CA 95482 WWTP same agency N N/A 1 0 0 N Y Other (specify below) No Spills Other (specify below) No Failures N/A N/A 2025 1SSO10004 1 616 20-APR-26 Municipal(Public) 350 6 5 1 1 0 0 0 0 0 11 N/A 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 0 50 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 .5 1B77162OMEN Calpella CWD WWTP, 5681 North State Street, Ukiah, CA 95482-9477 WWTP same agency N N/A 1 0 0 N Y Other (specify below) No Spills Other (specify below) No Failures N/A N/A 2023 1SSO10006 1 616 30-DEC-25 Prison 3500 0 0 4 0 0 0 0 0 0 0 2 - collection system maintenance correspondence course thru Sac State University. .1 4.5 46 46 8 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 .1 .5 Pelican Bay State Prison 5905 Lake Earl Drive. Crescent City, Ca. 95531 WWTP same agency N N/A 0 0 0 N Y Operator Error (specify below) SCADA did not respond to commands Other (specify below) we have no failures with system infrastructure no ongoing investigations we camera and Jett 1/3 of the prison per year 2024 1SSO10006 1 616 30-DEC-25 Prison 3500 0 4 0 0 0 0 0 0 0 0 2- collection system maintenance correspondence course through Sac State University. .1 4.5 46 46 8 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 .1 .5 Pelican Bay State Prison 5905 Lake Earl Drive. Crescent City, Ca. 95531 WWTP same agency N 0 0 0 N Y Other (specify below) no sewer spills to report Other (specify below) no system failures within the infrastructure we have no ongoing spill investigations we camera and Jett 1/3 of the prison per year 2025 1SSO10006 1 616 08-JAN-26 Prison 3500 0 0 4 1 0 0 0 0 0 0 2- collection system maintenance from Sacramento State University. .1 4.5 46 46 8 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 .1 .2 Pelican Bay State Prison 5905 Lake Earl Drive. Crescent City, Ca. 95531 WWTP same agency N 0 0 0 N Y Other (specify below) no sewer spills to report Other (specify below) no failures with system infrastructure to report no on going spill investigation we plan to camera 1/3 of the institution per year 2023 1SSO10012 1 616 31-DEC-25 Municipal(Public) 7360 1 2 1 1 1 1 2 1 0 0 0 32 55 21 11 13 0 0 100 0 0 0 0 0 0 0 2700 6 None 10 0 5 35 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 50 50 0 0 0 0 0 100 0 1 0 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 0 0 1 N Y Other (specify below) No spills during reporting year. Other (specify below) No spills during reporting year. None. Weekly inspection of FOG Hotspots. Repair of damaged and/or degraded sewer sections, laterals, and joints. 2024 1SSO10012 1 616 31-DEC-25 Municipal(Public) 7360 1 2 1 1 1 1 2 1 0 0 0 32 55 21 11 13 0 0 100 0 0 0 0 0 0 0 2700 6 None 0 0 5 35 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 50 50 0 0 0 0 0 100 0 1 .1 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 0 0 1 N Y Other (specify below) No spills during reporting year. Other (specify below) No spills during reporting year. None Weekly inspection of FOG Hotspots. Repair of damaged and/or degraded sewer sections, laterals, and joints. 2025 1SSO10012 1 616 20-MAR-26 Municipal(Public) 7290 1 4 1 1 1 1 2 0 0 0 0 32 55 21 11 13 0 0 100 0 0 0 0 0 0 0 2700 0 None 0 0 5 35 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 50 50 0 0 0 0 0 100 0 1.3 0 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 0 0 1 N Y Debris-General No spills ocurred over past year. Causes of clogged pipes were grease, tree roots, and degraded pipe sections. Pump Station - Power No spills ocurred. None Replaced sections of degraded pipe and capped abandoned laterals. 2023 1SSO10014 1 616 08-APR-24 Municipal(Public) 28489 10 10 2 4 3 4 0 0 0 0 15 115 56 23 14 2 0 3 100 53 11 11 23 0 0 100 10394 0 None 0 1 2 12 5 15 1 26 0 38 100 1 9 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 115 115 1B82151OHUM Greater Eureka Wastewater Treatment Plant, 4301 Hilfiker Ln, Eureka, CA 95503 WWTP same agency Y N Humboldt Community Service District 1SSO11419 6 2 1 Y Y Other (specify below) I&I Pump Station - Mechanical None SCADA changes, pump replacements, smoke testing, pipe lining, lateral replacement program 2025 1SSO10014 1 616 06-MAR-26 Municipal(Public) 28489 2 15 3 3 4 6 0 0 0 0 21.7 110.3 58 24 15 1 1 1 100 63 9 8 9 11 1 100 12207 58 None .5 1 2 12 5 15 1 26 0 38 100 1 9 4 1 1 0 0 0 0 16 0 0 0 0 0 0 0 0 0 0 2.9 79 3.3 1B82151OHUM Elk River, 4301 Hilfiker Lane, Eureka CA 95503 WWTP same agency N 23 3 2 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Pump Station - Mechanical None SCADA adjustment, pump upgrade/replacement, smoke testing, pipe lining, and lateral replacement program. 2023 1SSO11467 1 616 29-DEC-25 Municipal(Public) 6919 1 6 2 2 0 0 0 0 0 0 3.7 30.8 65 25 10 0 0 0 100 0 0 100 0 0 0 100 2827 8 Lower only 20 5 0 7 23 10 40 15 0 0 100 0 0 0 4 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 2 2 25 32 1B84083OMEN FORT BRAGG WASTEWATER TREATMENT FACILITY, 281 Jere Melo Street, Fort Bragg, CA 95437 SSS same agency N 4 2 0 Y Y Pipe Structural Problem/Failure - Controls Gravity Mainline No ongoing investigations District maintains a hot-spot list of locations that are cleaned on a monthly basis. 2023 1SSO10016 1 616 19-MAR-24 Municipal(Public) 43693 2 2 1 1 1 2 1 1 0 0 N/A 9 95 53 34 11 1 1 0 100 0 15 15 70 0 0 100 10292 41 None 1 4 18 22 53 4 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 13 13 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA SSS same agency N 20 3 16 Y Y Fats, Oil and Grease (FOG) N/A Siphon N/A None I&I reduction project A&B Section. 5 year CIP plan based off the sewer system master plan 2024 1SSO10016 1 616 13-MAR-25 Municipal(Public) 44326 2 1 1 1 2 2 0 0 0 0 N/A 9 96 53 34 11 1 1 0 100 0 10 10 80 0 0 100 10123 28 Upper and Lower 1.2 8 8 13 54 17 0 0 0 0 100 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 17.2 3.6 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N N/A 20 0 16 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A None Removed and replace ARV spool piece. This summer when we line the wet well at station #2 we will inspect the other ARV structures. 2025 1SSO10016 1 616 16-MAR-26 Municipal(Public) 44062 3 1 1 1 2 2 0 0 0 0 N/A 9 96 53 34 11 1 1 0 100 0 10 10 80 0 0 100 10123 32 None 1.2 8 8 13 54 17 0 0 0 0 100 0 0 1 0 1 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 35.9 1.6 1B83099OSON 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 20 0 16 Y Y Other (specify below) We did not have any SSO's in 2025 Other (specify below) None N/A We completed 4 million dollar I&I reduction project. Included slip lining and rehabitllatliton lower laterals. 2023 1SSO10017 1 616 03-DEC-24 Municipal(Public) 7380 4 4 1 2 5 2 2 1 0 0 none 2.7 29.6 65 16 15 1 0 3 100 1 45 54 0 0 0 100 2754 2754 Lower only 10.5 0 5 20 50 20 5 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 22 1.7 1B83099OSON City Of Santa Rosa, Laguna Treatment Plant 4300 Llano Rd, Santa Rosa Ca 95407 SSS other agency N N/A 0 1 2 N Y Root Intrusion N/A Lower Lateral N/A none ongoing cleaning 2025 1SSO10017 1 616 03-MAR-26 Municipal(Public) 7380 4 4 1 1 6 2 2 0 0 0 none 2.7 29.6 65 16 15 1 0 3 100 1 45 54 0 0 0 100 2754 2754 Lower only 10.5 0 5 20 50 20 5 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 24.1 4.3 1B83099OSON City of Santa Rosa, Laguna Treatment Plant 4300 Llano Rd Santa Rosa Ca 95407 SSS other agency N N/A 0 1 2 N Y Root Intrusion N/A Lower Lateral N/A none ongoing cleaning and replacing lower laterals when necessary. 2023 1SSO10022 1 616 29-MAR-24 Municipal(Public) 5404 2 5 2 2 0 0 2 0 0 0 3 18 75 13 10 2 0 0 100 20 0 80 0 0 0 100 1531 8 Lower only 3 0 6 20 65 5 4 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 4 0 0 0 0 0 4 0 18 18 1A84006ODN Crescent City CS, 377 J Street, Crescent City, CA 95531 WWTP same agency Y N Del Norte County CSA 1A190056WNDN 1 1 0 Y Y Fats, Oil and Grease (FOG) Manhole None. Adjust cleaning schedule, adjust contractor cleaning methods. 2024 1SSO10022 1 616 31-MAR-25 Municipal(Public) 5037 10 5 3 2 0 1 0 0 0 1 NA 3 18 75 13 10 2 0 0 100 20 0 80 0 0 0 100 1427 8 Lower only 3 0 6 20 65 5 4 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 4 0 0 0 0 0 0 0 0 0 1A84006ODN Crescent City CS, 377 J Street, Crescent City, CA 95531 WWTP same agency Y N Del Norte County CSA 1A190056WNDN NA 1 1 0 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA None Sections of gravity mains were added to the monthly cleaning list. FOG educational outreach to residential area. Increased FOG inspections in a small area. 2025 1SSO10022 1 616 30-MAR-26 Municipal(Public) 5073 10 5 3 2 0 1 0 0 0 1 3 18 75 13 10 2 0 0 100 20 0 80 0 0 0 100 1437 8 Lower only 3 0 6 20 65 5 4 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 4 0 0 0 0 0 4 0 0 0 1A84006ODN Crescent City CS, 377 J Street, Crescent City, CA 95531 SSS same agency Y N Del Norte County CSA 1A190056WNDN NA 1 1 0 Y Y Fats, Oil and Grease (FOG) Fats, Oil and Grease (FOG) and debris Manhole None Added to cleaning schedule, 2023 1SSO10023 1 616 26-MAR-24 Municipal(Public) 8916 0 0 0 0 0 0 0 0 0 0 The County of Del Norte contracts with the City of Crescent City for the operation and maintenance of the County collection system. 4 29 75 12 13 0 0 0 100 67 7 26 0 0 0 100 2418 10 None 0 0 20 70 10 0 0 0 0 0 100 0 2 10 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 4 1A84006ODN Crescent City CS, 377 J Street, Crescent City, CA 95531 WWTP same agency N NA 6 3 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance illegal dumping of debris into manholes. Pump Station - Controls Most recent failures were related to pump station failures or widespread power outages. Sanitary Sewer Overflows were avoided in each case due to rapid responses by our contracting agency and other contractors. NA Perform site specific investigations when problems are brought to our attention. County continues to seek funding especially related to inflow and infiltration (I&I). Most recently working with Indian Health Service to fund an I&I study on Elk Valley Road and Broad Street. 2023 1SSO10025 1 616 28-MAR-24 Municipal(Public) 740 0 0 1 1 1 0 0 0 0 1 0 8 50 50 0 0 0 0 100 0 0 0 0 0 0 0 400 400 Lower only 1 0 90 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1SSO10025 Etna CS, , Etna, CA 96027 WWTP same agency N 0 0 0 N Y Root Intrusion Gravity Mainline None at this time Root intrusion removal and sealing ,regular flow inspections 2023 1SSO10028 1 616 09-JAN-26 Municipal(Public) 1600 1 2 1 1 0 0 0 0 0 0 All staff members that work in operations are a minimum certification level of Wastewater Treatment grade 2 and Water Distribution Grade 2 with all current operations staff possessing grade 3 or 4 wastewater treatment certificates. 1 3 90 10 0 0 0 0 100 100 0 0 0 0 0 100 445 1 Lower only 8 0 55 0 45 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 1 1B83100OSON Forestville Discharge Serial No. 003, , CA WWTP same agency N 0 0 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Section of pressure main failed do to improperly located ARV which allowed gas to collect in sewer force main resulting in compromised pipe wall. Corrections have been made. Force Main None Recently finished a project replacing approximately 450 feet of pressure main and relocating an ARV and evaluating the possibility of replacing a large section of pressure main with gravity sewer main lines allowing better removal of gasses and potentially removing multiple homes from septic system use. 2024 1SSO10028 1 616 09-JAN-26 Municipal(Public) 1600 0 2 0 0 0 0 0 0 0 0 All Staff members that work in operations are a minimum certification level of wastewater grade 2 and water distribution grade 2. 1 3 90 10 0 0 0 0 100 100 0 0 0 0 0 100 445 1 Lower only 8 0 55 0 45 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 1 1 1B83100OSON Forestville Discharge Serial No. 003, , CA WWTP same agency N 0 0 0 N Y Debris from Construction Other (specify below) None NONE We have been working on a sewer replacement project that should break ground in 2025 2025 1SSO10028 1 616 09-JAN-26 Municipal(Public) 1600 0 2 0 0 0 0 1 1 0 0 1 8 90 10 0 0 0 0 100 100 0 0 0 0 0 100 445 1 Lower only .1 20 55 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 100 0 1 1 1B83100OSON Forestville Discharge Serial No. 003, , CA WWTP same agency N 0 0 0 N Y Other (specify below) No major spills Other (specify below) None None We are currently working on a sewer replacement program, we finished phase 1 this year and are hoping to continue working on the next phases in 2026 2023 1SSO10030 1 616 20-FEB-24 Municipal(Public) 695 0 1 1 1 0 0 0 0 0 1 One employee has his WW 1 license and is taking classes from Sac state to further his knowledge. 0 6 47 31 19 0 0 3 100 0 0 0 0 0 0 0 378 0 None 0 1 19 30 20 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 1 1 0 1SSO10030 Fort Jones City CS, , Fort Jones, CA 96032 WWTP same agency N 2 0 0 Y Y Root Intrusion Gravity Mainline We have an employee on call all the time to respond to sewer emergencies. We regularly check known problems areas monthly. We are seeking funding to replace our aging infrastructure. We installed new floats on a pumping station that failed. We replaced about 80 feet of 6 inch clay pipe with a new plastic main. We installed cleanout covers on 6 open cleanouts. We made a new access point to clean the sewer with the flusher truck. We worked with homeowners to limit infiltration and inflow problems and we have an active FOG program. 2024 1SSO10030 1 616 12-FEB-25 Municipal(Public) 695 0 2 1 1 0 0 0 0 0 0 Everett Hullquist has attained his Wastewater 2 certificate issued by the SWRCB in 2024. He also does training on confined space, trenching shoreing, asbestos and hazardous materials, traffic control and other safety topics. .2 6 47 30 19 0 0 3 99 1 0 0 0 0 0 1 379 0 None 0 2 19 30 20 29 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 .5 1 .1 1A81157OSIS Fort Jones City WWTP, Scott River Road, Fort Jones, CA 96032-9788 WWTP same agency N N/A 2 0 0 Y Y Root Intrusion I don't think we had any major spills this year. We did have a few backups, where we used the flusher truck to unclog the main in an emergency. Gravity Mainline Root intrusion into mainline led to a backup. One of our pumps in our duplex pumping station stopped working, we replaced it. We are working on replacing the 32 year old control panel. We respond to all complaints of backups or spills immediately. We have an on-call wastewater operator 24/7 365 days a year. We dug up and replaced about 10 feet of 4inch AC pipe on Carlock Street. We replaced one of the motors in our duplex pumping station. We are working on replacing the control panel on that pumping station as well. Council recently approved 250k engineers estimate to relocate/replace a large portion of the sewer main on Cowan and Don street. This has been a problem area for decades. We are working on upgrading our as-built maps and our inventories of replacement parts/pumps/pipes. We are working on avenues to apply for a CWSRF grant/loan/bond to try to mitigate our I and I problems and replace sewer mains under Hwy 3 before Caltrans impending paving project. 2025 1SSO10030 1 616 12-FEB-26 Municipal(Public) 695 0 1 1 1 0 0 0 0 0 0 Everett has got his WW2 treatment plant license .1 6 47 30 19 0 0 3 99 1 0 0 0 0 0 1 379 0 None 0 2 19 30 20 29 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 1 0 1A81157OSIS Fort Jones City WWTP, Scott River Road, Fort Jones, CA 96032-9788 WWTP same agency N 2 0 0 Y Y Root Intrusion Gravity Mainline We go around and look at known problem areas looking for developing backups. There are no blindspots in the system, so everyone knows who to call when the sewer starts to backup. We respond immediately to any claim of sewer backing up. We have started engineering to replace some of our older mainlines and are currently working on a EA assessment on the project. This will enable the Town to utilize CDBG funding sources to fund these sewer projects. We dug up and replaced a lateral that had root intrusion on Sterling St. We repaired a crushed main on Carlock St. 2023 1SSO10031 1 616 22-JAN-25 Municipal(Public) 12285 3 6 2 1 0 0 0 0 0 0 none 2.4 50 75 20 5 0 0 0 100 90 10 0 0 0 0 100 5000 5000 Lower only 9.5 0 10 25 25 20 15 5 0 0 100 0 1 0 0 0 0 0 0 0 1 0 6 0 0 0 0 0 0 0 6 2 22 1 1B83135OHUM Tom Cooke Memorial WWTP, 190 Dinsmore Drive, Fortuna CA, 95540 WWTP same agency Y N Palmer Creek CSD 1SSO11475 NA 3 3 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Gravity Mainline NA None A Contract CCTV inspection crew to perform work at the end of 2024, from this data, a list will be compiled prioritizing work needed completed on the collection system. 2024 1SSO20026 1 616 30-DEC-25 Municipal(Public) 1864 0 4 1 2 0 2 1 0 0 3 7 12 90 10 0 0 0 0 100 30 70 0 0 0 0 0 456 0 None 0 10 0 20 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 4 4 7 7 1B83120OHUM Garberville POTW, 410 Bear Canyon Road, Garberville, CA 95560 WWTP same agency N 0 1 1 N Y Debris from Lateral Manhole HYDRO CLEAN PROBLEM AREAS 4 TIMES ANNUALLY MAINTAIN PIPE AND EQUIPMENT 2023 1SSO10033 1 616 26-MAR-24 Municipal(Public) 1600 0 1 1 0 0 0 0 0 0 2 0 1 7 78 8 13 0 0 0 0 1 1 0 0 0 0 0 449 0 None 0 0 0 0 86 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 1 7 7 1B84060OSON 250 Ross Ln. Sebastopol, CA 95472 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Pump Station Failure - Mechanical NA Gravity Mainline NA NA Graton Community Services District is undertaking a project to assess the condition and plan for rehabilitation and repair of its entire sanitary sewer collection system. The District received a grant from the State Water Resources Control Board (Water Board) in March 2020 for planning, environmental, and design services for a project that would address deficiencies in the District sewer collection system. The scope of work was modified to expand collection system inspection efforts to include cleaning and inspection of all 32,000 feet of sewer line, inspection of 132 manholes, and inspection of the two collection system lift stations. 2024 1SSO10033 1 616 24-MAR-26 Municipal(Public) 1806 0 1 1 0 0 0 0 0 0 2 0 1 7 78 8 13 0 0 0 0 1 1 0 0 0 0 0 449 0 None 0 0 0 0 86 0 0 0 0 14 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1B84060OSON Graton CSD, 250 Ross ln. Sebastopol, CA, 95472 WWTP same agency N N N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 0 Y Fats, Oil and Grease (FOG) Gravity Mainline None Graton Community Services District is undertaking a project to assess the condition and plan for rehabilitation and repair of its entire sanitary sewer collection system. The District received a grant from the State Water Resources Control Board (Water Board) in March 2020 for planning, environmental, and design services for a project that would address deficiencies in the District sewer collection system. The scope of work was modified to expand collection system inspection efforts to include cleaning and inspection of all 32,000 feet of sewer line, inspection of 132 manholes, and inspection of the two collection system lift stations. 2025 1SSO10033 1 616 24-MAR-26 Municipal(Public) 1806 0 1 1 0 0 0 0 0 0 2 0 1 7 78 8 13 0 0 0 99 1 0 0 0 0 0 1 449 0 None 0 0 0 0 86 0 0 0 0 14 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1B84060OSON Graton CSD, 250 Ross ln. Sebastopol, CA, 95472 WWTP same agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Graton Community Services District is undertaking a project to assess the condition and plan for rehabilitation and repair of its entire sanitary sewer collection system. The District received a grant from the State Water Resources Control Board (Water Board) in March 2020 for planning, environmental, and design services for a project that would address deficiencies in the District sewer collection system. The scope of work was modified to expand collection system inspection efforts to include cleaning and inspection of all 32,000 feet of sewer line, inspection of 132 manholes, and inspection of the two collection system lift stations. 2023 1SSO10035 1 616 02-APR-24 Municipal(Public) 2200 0 4 1 1 0 0 0 0 0 3 N/A 5 9 25 20 0 0 0 0 45 30 25 0 0 0 0 55 408 408 Lower only 45 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 2 1 1 1B89005RMEN Gualala CS, , Gualala, CA 95445 SSS other agency N N/A 0 1 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Pump Station - Controls N/A N/A GCSD has submitted a construction application to the SWRCB DAC grant program for system wide rehab and upgrades. 2024 1SSO10035 1 616 01-DEC-25 Municipal(Public) 652 1 1 0 1 0 0 0 0 0 3 N/A 5 11 40 0 0 0 0 0 40 60 0 0 0 0 0 60 305 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 14 0 0 1B89005RMEN 42455 State Highway 1 The Sea Ranch, Ca 95497 WWTP same agency N n/A 0 0 0 N Y Natural Disaster (specify below) N/A Pump Station - Controls N/A N/A Train employees are what to do when a lift station control panel fails to respond. 2023 1SSO10037 1 616 14-MAR-24 Municipal(Public) 11709 2 16 3 2 4 5 2 2 0 1 0 3 54 28 40 22 10 0 0 100 50 0 0 50 0 0 100 4826 0 Lower only 0 1 3 14 16 56 10 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 1 8 0 0 0 0 0 11 0 10 2 1SSO10037 Healdsburg City CS, 401 Grove Street, Healdsburg, CA 95448 WWTP same agency N 0 2 0 Y Y Root Intrusion Lower Lateral CCTV documentation and repair prioritization Capital replacement projects and ongoing maintenance projects 2024 1SSO10037 1 616 14-FEB-25 Municipal(Public) 11137 3 14 3 2 4 2 1 4 0 1 0 3 54 28 40 22 10 0 0 100 50 0 0 50 0 0 100 4826 0 Lower only 0 1 3 14 16 56 10 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 1 8 0 0 0 0 0 11 0 6 6 1B82046OSON Healdsburg City CS, 401 Grove Street, Healdsburg, CA 95448 WWTP same agency N 0 2 0 Y Y Root Intrusion Lower Lateral CCTV documentation and repair prioritization Capital replacement projects and ongoing maintenance projects 2025 1SSO10037 1 616 11-FEB-26 Municipal(Public) 11231 3 13 3 1 6 5 0 4 0 1 0 3 54 28 40 22 10 0 0 100 50 0 0 50 0 0 100 4826 0 Lower only 0 1 3 14 16 56 10 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 1 8 0 0 0 0 0 11 0 15.9 .5 1B8204OSON Healdsburg City CS, 401 Grove Street, Healdsburg, CA 95448 WWTP same agency N 0 2 0 Y Y Root Intrusion Lower Lateral CCTV documentation and repair prioritization Capital replacement projects and ongoing maintenance projects 2023 1SSO10038 1 616 25-MAR-24 Municipal(Public) 500 1 3 1 1 0 0 0 0 0 4 N/A 1 3 70 0 0 0 0 0 70 30 0 0 0 0 0 30 297 0 None 0 0 0 0 50 50 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 1 1 1SSO10038 Hopland PUD CS, 25 Center Drive, Hopland, CA 95449 WWTP same agency N N N/A 0 1 0 N Y Other (specify below) No Spills Other (specify below) No failures N/A N/A 2024 1SSO10038 1 616 08-JAN-25 Municipal(Public) 500 1 3 1 1 0 0 0 0 0 4 N/A 1 3 70 0 0 0 0 0 70 30 0 0 0 0 0 30 297 0 None 0 0 0 0 50 50 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 1 1 1SSO10038 Hopland PUD 13881 Hwy 101 Hopland, CA 95449 WWTP same agency N N/A 0 1 0 N Y Other (specify below) No Spills Other (specify below) No Failures N/A N/A 2023 1SSO10041 1 616 17-DEC-25 Municipal(Public) 2401 1 2 1 1 1 0 0 0 0 1 N/A 13 36 64 7 17 0 0 0 88 12 0 0 0 0 0 12 2866 2866 Lower only 5 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 20 0 0 0 0 0 20 0 3 3 1SSO10041 Lake Shastina CSD WWTP 14302 Big Springs Rd, Weed CA 96094 WWTP same agency N 1 1 0 Y N Other (specify below) Electric Utility power disruptions Pump Station - Power Electric Utility power disruptions N/A Electrical upgrades. Manual bypass provisions. 2024 1SSO10041 1 616 17-DEC-25 Municipal(Public) 2401 2 1 1 1 1 0 0 0 0 1 13 36 64 7 17 0 0 0 88 12 0 0 0 0 0 12 2866 2866 Lower only 5 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 20 0 0 0 0 0 20 0 3.5 3.5 1SSO10041 LSCSD WWTP 14302 Big Springs Rd., Weed CA WWTP same agency N 1 1 0 Y N Other (specify below) Electric Utility power disruptions Other (specify below) Electric Utility power disruptions N/A Planning to install SCADA telemetry and backup generators at critical stations 2025 1SSO10041 1 616 18-MAR-26 Municipal(Public) 2790 1 1 1 1 1 0 0 0 0 1 One operator in training 13.3 36 64 7 17 0 0 0 88 12 0 0 0 0 0 12 2866 2866 Lower only .5 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0 0 0 4 4 1SSO1OO41 Lake Shastina CSD 14302 Bigsprings Road weed Ca 96094 WWTP same agency N 1 0 0 Y Other (specify below) No major spills . One root intrusion of 30 gallons and 100% captured. Lower Lateral Cleaning and inspecting surrounding system. Inspecting surrounding system. 2025 1SSO10042 1 616 15-APR-26 Municipal(Public) 828 1 2 1 1 1 1 1 0 0 0 2.9 2.9 100 0 0 0 0 0 100 0 0 0 0 0 0 0 234 3 Lower only .2 0 10 10 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1SSO10042 WWTP same agency N 0 0 0 N Y Other (specify below) no major spills Lower Lateral no spills ACL order to replace mains and laterals, new wastewater plant 2023 1SSO10043 1 616 22-MAR-24 Municipal(Public) 750 0 1 1 1 1 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1B80162OHUM Manila CSD WWTP, 365 Lupin Drive, Arcata, CA 95521-9652 WWTP same agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power Myriad system replacements planned with upcoming grant project. Replacement of well floats. New pump station planned through grant activities. 2023 1SSO10044 1 616 30-JAN-25 Municipal(Public) 16900 3 8 1 1 0 0 2 0 0 0 0 1.3 67.3 78 10 9 3 0 0 100 100 0 0 0 0 0 100 5341 10 None 0 3 14 22 61 0 0 0 0 0 100 1 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 29 6 1SSO10044 McKinleyvilleCSD SSS same agency N 0 0 0 0 0 0 0 0 0 0 0 7 1 0 Y Y Debris from Lateral 0 Gravity Mainline 0 Monitoring dry weather and wet weather sewer flows in manholes and repairing any leaks found during the manhole inspections. Replacing or lining sewer mains that are failing. Lined 2200 feet of sewer mains and lined manholes. 2024 1SSO10044 1 616 30-JAN-25 Municipal(Public) 16900 1 9 1 1 0 0 2 0 0 0 0 1.9 68.9 79 9 10 2 0 0 100 30 0 70 0 0 0 100 5328 10 None 0 4 14 22 60 0 0 0 0 0 100 1 0 0 4 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 3 32 8 1B82084OHUM Groundwater (Land Application), , McKinleyville, CA SSS same agency N 0 0 0 0 0 0 0 0 0 0 0 7 1 0 Y Y Debris from Lateral 0 Gravity Mainline 0 Monitoring dry and wet weather flows in manholes and repairing any leaks found during the manhole inspections Replacing or lining sewer mains that are failing along with increasing hydro-cleaning schedule in areas that have issues in the past. 2025 1SSO10044 1 616 13-FEB-26 Municipal(Public) 16900 1 9 1 1 0 0 1 0 0 0 0 1.9 67.6 82 10 8 0 0 0 100 32 0 68 0 0 0 100 5361 10 None 0 6 14 22 58 0 0 0 0 0 100 1 0 0 4 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 3 33 2 1B82084oHUM Groundwater (Land Application), , Lodi, CA SSS same agency N 0 0 0 0 0 0 0 0 0 0 0 7 1 0 Y Y Debris-General 0 Gravity Mainline 0 Monitoring dry and wet weather flows in manholes, hydro-cleaning schedule, repairing leaks found during inspections. Replacing or lining sewer mains found to be defective along with increasing locations to the hydro-cleaning schedule. 2023 1SSO10045 1 616 25-MAR-24 Municipal(Public) 3500 1 1 0 1 0 0 0 0 0 0 We have currently have two full time wastewater treatment operators, one OIT, and one part time reserve operator. The WW operators conduct most sewer system cleaning and maintenance 4 9 31 61 8 0 0 0 100 6 0 0 0 0 0 100 406 0 None 0 0 0 1 89 0 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 4 31 0 1B83129OMEN Mendocino City CSD, 10500 Kelly Street, Mendocino, CA 95460 WWTP same agency Y N Russian Gulch State Park ? N Hills Ranch Home Owners Association ? Within MCCSD are a couple small home owner associations that have private sewer lateral collection system which pumps into the MCCSD gravity collection system. 0 0 0 N Y Other (specify below) MCCD has not had any major spills in the past few years. Operaters have observed some root intrusion and grease in past inspections, and now clean those areas annualy Pump Station - Mechanical MCCSD has old lift stations requiring confined space access for maintenance and repair. MCCSD lacks sufficent staff to safey enter a confired space to conduct maintenance. Lift station equipment or power failure may cause a spill. No ongoing spills to investiage MCCSD operators have conducted additional cleaning in heavey grease areas root prone areas, hired outside contractors to replace valves, and preforman lift station maintenance, and aquired generators as back up power sources. 2024 1SSO10045 1 616 21-MAY-25 Municipal(Public) 3500 1 1 0 1 0 0 0 0 0 0 We have currently have two full time wastewater treatment operators, one OIT, and one part time reserve operator. The WW operators conduct most sewer system cleaning and maintenance .4 8.1 31 61 8 0 0 0 100 6 0 0 0 0 0 100 407 0 None 0 0 0 1 89 0 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 .4 2.7 0 1B83129OMEN Mendocino City CSD, 10500 Kelly Street, Mendocino, CA 95460 WWTP same agency Y N Russian Gulch State Park ? N Hills Ranch Home Owners Association ? Within MCCSD are a couple small home owner associations that have private sewer lateral collection systems which pumps into the MCCSD gravity collection system. 0 0 0 N Y Other (specify below) MCCD has not had any major spills in the past few years. Operators have observed some root intrusion and grease in past inspections, and now clean those areas annually Pump Station - Mechanical MCCSD has 50 year old lift stations requiring confined space access for maintenance and repair. MCCSD lacks staff to safely enter a confined space to conduct maintenance. Lift station equipment or power failure may cause a spill. MCCSD is not aware of any ongoing spills to investigate MCCSD operators conduct additional cleaning in heavy grease areas and known root prone areas. MCCSD maintains back up generators, and generator connections at lift stations; repaired and replaced lift station alarm auto dialers; made point repairs to collections system mains, met with outside contractors to propose lift station rehabilitation and replacement of segments of the collections system. MCCSD has applied for grant funding to address these concerns without success. 2025 1SSO10045 1 616 17-FEB-26 Municipal(Public) 3500 1 1 0 1 0 0 0 0 0 0 We currently have two full time wastewater treatment operators, one OIT, and one part time reserve operator. The WW operators conduct most sewer cleaning and maintenance, larger jobs are contracted out. .4 8.1 31 61 8 0 0 0 100 6 0 0 0 0 0 100 407 0 None 0 0 0 1 89 0 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 .4 2.7 0 1B83129OMEN Mendocino City CSD, 10500 Kelly Street, Mendocino, CA 95460 WWTP same agency Y N Russian Gulch State Park ? N Hills Ranch Home Owners Association ? Within MCCSD are a couple small home owner association that have private sewer lateral collections system which pumps into the MCCSD gravity collections system 0 0 0 N Y Root Intrusion MCCSD has not had any major spills in the past few years. Operators have observed some root intrusion and grease buildups in the past inspections and now clean these areas annually. Pump Station - Mechanical MCCSD's pump stations are 50 years old. Maintenance and repairs require confined space access. MCCSD lacks staff to safely enter confined spaces. Pump station equipment failure or power outages may lead to spills. MCCSD struggles to find local contractors willing to work on pump stations. MCCSD lacks funding to modernize pumps stations and bring equipment above ground. MCCSD is not aware of any ongoing spills to investigate. Known hot spot areas are checked multiple times per year. MCCSD conducts annual inspections and cleaning of known grease and root prone areas. MCCSD uses its web site and mailings to educated users on what not to put down the drain. MCCSD maintains back up generators for pump stations. MCCSD replaced 360' of approximate 80 year old gravity sewer main in 2025, and plans to replace another 950' in 2026. MCCSD cleaned and inspected approximately 2 miles of collection system in 2025. MCCSD continues to apply without success for State SRF funding to address collection system concerns. MCCSD has recently received technical assistance authorization from the U.S. EPA to conduct a preliminary engineering report on the pump stations with recommendations to assist with SRF funding programs. 2023 1SSO10047 1 616 30-DEC-25 Municipal(Public) 386 1 1 0 0 1 0 0 0 0 0 n/a 0 2 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1B80002OHUM Miranda POTW, Avenue of the Giants , Miranda, CA 95553 WWTP same agency N 0 0 0 N Y Other (specify below) No major spills this year or at any time in the past 10 years. The District has had no sewage spills in the past 10 years of any size. Other (specify below) No infrastructure failures. none n/a 2024 1SSO10047 1 616 30-DEC-25 Municipal(Public) 386 1 1 0 0 1 0 0 0 0 0 N/A 0 2 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1B80002OHUM Miranda POTW, Avenue of the Giants , Miranda, CA 95553 WWTP same agency N 0 0 0 N Y Other (specify below) No major spills this year or at any time in the past 10 years. The District has had no sewage spills in the past 10 years of any size. Other (specify below) No infrastructure failures. none none 2025 1SSO10047 1 616 13-MAR-26 Municipal(Public) 386 1 1 0 0 1 0 0 0 0 0 0 2 100 0 0 0 0 0 100 0 0 0 0 0 0 0 117 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1B80002OHUM Miranda POTW, 595 River Road Miranda, CA 95553 WWTP same agency N 0 0 0 N Y Other (specify below) No major spills this year or at any time in the past 10 years. The link to create a graph mentioned in #13. - is not a link to create a graph. The District has had no sewage spills in the past 10 years of any size. Other (specify below) No system infrastructure failures none n/a 2023 1SSO10052 1 616 12-AUG-24 Municipal(Public) 500 0 6 3 1 0 2 0 0 0 2 .7 4.4 94 3 3 0 0 0 100 0 100 0 0 0 0 100 235 0 None 0 2 0 3 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 1 .3 .9 1B801730MAR Oceana Marin (North Marin CWD) CS WWTP same agency N 0 0 0 Y Y Debris-wipes/Non-disposables Force Main none Manhole relining. Project to repair offsets. 2024 1SSO10052 1 616 15-DEC-25 Municipal(Public) 350 1 9 3 2 0 2 0 0 0 3 .7 4.4 94 3 3 0 0 0 100 100 100 0 0 0 0 100 235 0 None 0 0 2 3 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 0 0 1B80173OMAR Oceana Marin (North Marin CWD) CS SSS same agency N 0 0 0 Y Y Other (specify below) none Other (specify below) none none Budgeted 40,000 for intrusion repairs. Increasing budget annually for next 5 years. 2025 1SSO10052 1 616 27-MAR-26 Municipal(Public) 350 1 9 3 2 0 0 0 0 0 0 There are two staff members with CWEA Lab Analyst certification. .7 4.4 94 3 3 0 0 0 100 100 0 0 0 0 0 100 241 0 None 0 0 2 3 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 0 1.3 1B80173OMAR Oceana Marin (North Marin CWD), Ocean View Boulevard, Dillon Beach, CA 94929 SSS same agency N 0 0 0 Y Y Other (specify below) None. Other (specify below) None. None. Plan to address intrusion repairs. 2023 1SSO10058 1 616 28-MAR-24 Municipal(Public) 3350 3 0 0 1 1 0 1 0 0 1 2 13 90 5 5 0 0 0 100 0 0 100 0 0 0 100 1256 3 Lower only 7 0 25 25 35 15 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 20 5 1B83134OHUM City of Rio Dell Discharge Point 001, , CA WWTP same agency N 0 1 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole The investigation of the I&I will continue once there is dry weather, as we will continue to camera and smoke test the system. There is a Painter Street upsizing project scheduled for this summer, 2024 to remedy the SSO's that occur at the Painter Street Manhole. 2024 1SSO10058 1 616 17-MAR-25 Municipal(Public) 3350 2 0 0 1 1 0 1 0 0 1 Currently one OIT. 2 13 90 5 5 0 0 0 100 0 0 100 0 0 0 100 1256 3 Lower only 7 0 25 25 35 15 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 6 6 1B83134OHUM City of Rio Dell Discharge Point 001, , CA WWTP same agency N 0 1 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole the Investigation of I&I will continue this summer during the dry weather months. The Painter Street Upsizing project is in it's final design process. the Painter Street upsizing project that has been delayed the past two years is scheduled for this July 2025. This project will remedy the recurring SSO at the Painter Street Manhole. 2025 1SSO10058 1 616 31-MAR-26 Municipal(Public) 3350 0 2 0 1 1 2 1 0 0 0 2 13 90 5 5 0 0 0 100 0 0 100 0 0 0 100 1256 3 Lower only 7 0 25 25 35 15 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 6 6 1B83134OHUM City of Rio Dell Discharge Point 001, , CA WWTP same agency N 0 1 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole The investigation of the I&I site has concluded that the existing infrastructure is inadequate to handle the added loads from heavy rainfall events. The Painter Street upsizing project is set to start in the summer months of 2026. 2023 1SSO10062 1 616 01-APR-24 Municipal(Public) 8000 0 6 2 2 0 1 2 0 0 0 N/A 0 41 41 35 16 8 0 0 100 100 0 0 0 0 0 100 2144 2144 Lower only 10 5 8 83 4 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 5 10 2 1B84124OSON SCWA Airport WRF (Airport-Larkfield-Wikiup), Skylane Boulevard, Santa Rosa, CA 95403-1087 WWTP same agency N 1 2 0 Y Y Collection System Maintenance Failure (specify below) Extreme weather conditions; Inflow and Infiltration Manhole N/A Updating SECAP. N/A 2024 1SSO10062 1 616 25-MAR-25 Municipal(Public) 9790 0 6 2 2 0 1 2 0 0 0 NA 0 41 41 35 16 8 0 0 100 100 0 0 0 0 0 100 2144 2144 Lower only 10 5 8 83 4 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 5 11 .2 1B84124OSON SCWA Airport WRF (Airport-Larkfield-Wikiup), Skylane Boulevard, Santa Rosa, CA 95403-1087 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 2 0 Y Y Debris-General NA Lower Lateral NA None at this time. None at this time. 2025 1SSO10062 1 616 31-MAR-26 Municipal(Public) 9790 0 6 2 2 0 1 2 0 0 0 NA .8 42.3 42 35 15 8 0 0 100 16 0 84 0 0 0 100 2144 2144 Lower only 10 5 8 83 4 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 7.7 0 1B20091RSON Windsor Wastewater Treatment, Reclamation, and Disposal Facility, 8400 Windsor Road, Windsor, CA 95492 WWTP other agency N N NA NA NA 7 1 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 1SSO10063 1 616 01-APR-24 Municipal(Public) 790 0 6 2 2 0 1 2 0 0 0 0 5 55 40 5 0 0 0 100 100 0 0 0 0 0 100 293 293 Lower only 1 0 1 99 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 1 1B77117OSON SCWA Geyserville CSD, Geyserville , Geyserville, CA 95441-9535 WWTP same agency N 0 0 0 Y Y Collection System Maintenance Failure (specify below) Extreme weather conditions; Inflow and Infiltration Manhole N/A Masterplan is underway. Anticipate completion in early 2025. N/A 2024 1SSO10063 1 616 25-MAR-25 Municipal(Public) 3500 0 6 2 2 0 1 2 0 0 0 NA 0 5 55 40 5 0 0 0 100 100 0 0 0 0 0 100 293 293 Lower only 1 0 1 99 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1.8 2.5 1B77117OSON SCWA Geyserville CSD, Geyserville , Geyserville, CA 95441-9535 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) The Agency has not had any spills Other (specify below) NA None at this time. None at this time. 2025 1SSO10063 1 616 30-MAR-26 Municipal(Public) 790 0 6 2 2 0 1 2 0 0 0 NA .3 5 55 40 5 0 0 0 100 100 0 0 0 0 0 100 293 293 Lower only 1 0 1 99 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.4 0 1B77117OSON SCWA Geyserville CSD, Geyserville , Geyserville, CA 95441-9535 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA None at this time. No deficiencies have been identified. 2023 1SSO10064 1 616 01-APR-24 Municipal(Public) 700 0 6 2 2 0 1 2 0 0 0 1 2 42 54 4 0 0 0 100 100 0 0 0 0 0 100 99 99 Lower only 1 0 38 11 29 22 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 1 1B84124OSON SCWA Airport WRF (Airport-Larkfield-Wikiup), Skylane Boulevard, Santa Rosa, CA 95403-1087 WWTP other agency N 1 0 0 Y Y Collection System Maintenance Failure (specify below) Extreme weather conditions; Inflow and Infiltration. Manhole N/A None at this time. N/A 2024 1SSO10064 1 616 25-MAR-25 Municipal(Public) 1700 0 6 2 2 0 1 2 0 0 0 NA 1 2 42 54 4 0 0 0 100 100 0 0 0 0 0 100 99 99 Lower only .8 0 38 11 29 22 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1.8 0 1B84124OSON SCWA Airport WRF (Airport-Larkfield-Wikiup), Skylane Boulevard, Santa Rosa, CA 95403-1087 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 0 0 Y Y Other (specify below) NA Other (specify below) NA None at this time None at this time. 2025 1SSO10064 1 616 30-MAR-26 Municipal(Public) 1300 0 6 2 2 0 1 2 0 0 0 NA 1 2 42 54 4 0 0 0 100 100 0 0 0 0 0 100 99 99 Lower only 1 0 38 11 29 22 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1.2 0 1B20091RSON Windsor Wastewater Treatment, Reclamation, and Disposal Facility, 8400 Windsor Road, Windsor, CA 95492 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 1SSO10065 1 616 01-APR-24 Municipal(Public) 250 0 6 2 2 0 1 2 0 0 0 0 2 97 3 0 0 0 0 100 100 0 0 0 0 0 100 140 140 Lower only 1 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1B71011OSON SCWA Oceanic Properties Sea Ranch Central Plant, Highway 1 Highway, The Sea Ranch, CA 95445 WWTP same agency N 0 0 0 Y Y Collection System Maintenance Failure (specify below) Extreme weather conditions; Inflow and Infiltration Manhole N/A None at this time. N/A 2024 1SSO10065 1 616 26-MAR-25 Municipal(Public) 250 0 3 1 1 0 0 0 0 0 0 NA .2 2 97 3 0 0 0 0 100 100 0 0 0 0 0 100 140 140 Lower only .7 0 0 5 95 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1B71011OSON SCWA Oceanic Properties Sea Ranch Central Plant, Highway 1 Highway, The Sea Ranch, CA 95445 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) None. Other (specify below) NA None at this time None at this time 2025 1SSO10065 1 616 31-MAR-26 Municipal(Public) 250 1 3 1 1 0 0 0 0 0 0 NA .3 2 97 3 0 0 0 0 100 100 0 0 0 0 0 100 140 140 Lower only .6 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1B71011OSON SCWA Oceanic Properties Sea Ranch Central Plant, Highway 1 Highway, The Sea Ranch, CA 95445 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 1SSO10066 1 616 01-APR-24 Municipal(Public) 800 0 6 2 2 0 1 2 0 0 0 1 14 86 5 9 0 0 0 100 92 8 0 0 0 0 100 490 490 Lower only 2 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 4 0 0 0 1B89005RMEN Gualala CS, , Gualala, CA 95445 WWTP other agency N 0 0 0 Y Y Collection System Maintenance Failure (specify below) Extreme weather conditions; Inflow and Infiltration Manhole N/A None at this time. N/A 2024 1SSO10066 1 616 25-MAR-25 Municipal(Public) 800 0 3 1 1 0 0 0 0 0 0 NA 1 14 86 5 9 0 0 0 100 92 8 0 0 0 0 100 490 490 Lower only 2.3 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 4 0 0 0 1B89005RMEN Gualala CS, , Gualala, CA 95445 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA None at this time None at this time 2025 1SSO10066 1 616 31-MAR-26 Municipal(Public) 800 1 3 1 1 0 0 0 0 0 0 NA 1 14 86 5 9 0 0 0 100 92 8 0 0 0 0 100 490 490 Lower only 2 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 4 0 0 0 1B89005RMEN Gualala CS, , Gualala, CA 95445 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 1SSO10067 1 616 01-APR-24 Municipal(Public) 7300 0 6 2 2 0 1 2 0 0 0 4 34 74 16 9 1 0 0 100 33 11 56 0 0 0 100 2502 2502 Lower only 12 0 1 71 28 0 0 0 0 0 100 0 0 9 0 0 0 0 0 0 9 0 0 2 0 0 0 0 0 0 2 3 7 1 1B82045OSON Russian River, , CA WWTP same agency N 0 2 0 Y Y Collection System Maintenance Failure (specify below) Flooding; Inflow and Infiltration. Extreme Weather Conditions Manhole N/A Updating SECAP. N/A 2024 1SSO10067 1 616 30-MAR-26 Municipal(Public) 5050 0 6 2 2 0 1 2 0 0 0 NA 4 34 74 16 9 1 0 0 100 33 11 56 0 0 0 100 2502 2502 Lower only 12 0 1 71 28 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 9 0 0 0 0 0 0 9 3 16.6 .3 1B82045OSON Russian River, , CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 2 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole NA Updating SECAP to identify capacity-related issues Updating SECAP to identify capacity-related issues 2023 1SSO10068 1 616 30-DEC-25 Municipal(Public) 803 1 1 1 0 0 0 0 0 0 0 N/A 2 20 0 90 0 0 0 0 90 0 10 0 0 0 0 10 767 4 Upper and Lower 6.5 0 0 0 100 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 2 1B84086OHUM Lower Pacific Drive at Wave Drive WWTP same agency N 0 2 0 N Y Other (specify below) N/A Other (specify below) N/A None None 2024 1SSO10068 1 616 30-DEC-25 Municipal(Public) 803 1 1 1 1 0 0 0 0 0 0 N/A 2 20 0 90 0 0 0 0 90 0 10 0 0 0 0 10 767 4 Upper and Lower 6.5 0 0 0 100 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 2 1B84086OHUM Lower Pacific Drive at Wave Drive WWTP same agency N N/A 0 2 0 Y Other (specify below) None Other (specify below) None 0 0 2025 1SSO10068 1 616 14-JAN-26 Municipal(Public) 803 1 1 1 0 0 0 0 0 0 0 N/A 2 20 0 90 0 0 0 0 90 0 10 0 0 0 0 10 767 4 Upper and Lower 6.5 0 0 0 100 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1B84086OHUM 001, , CA WWTP same agency N 0 2 0 N Y Other (specify below) N/A Other (specify below) N/A None None 2023 1SSO10070 1 616 13-MAR-24 Municipal(Public) 2163 0 3 1 1 2 2 0 1 0 5 N/A 0 18 28 59 12 1 0 0 100 0 0 0 0 0 0 0 1940 0 None 0 0 43 27 19 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 6 1SSO11491 Santa Rosa City CS, 69 Stony Circle, Santa Rosa, CA 95401 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A N/A 2024 1SSO10070 1 616 01-JUL-25 Municipal(Public) 12000 0 3 1 1 2 2 0 1 0 5 N/A 0 18.3 28 59 12 1 0 0 100 0 0 0 0 0 0 0 1649 0 None 0 0 43 27 19 11 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8.3 6 1b83099oson Santa Rosa City CS, 69 Stony Circle, Santa Rosa, CA 95401 WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A N/A 2025 1SSO10070 1 616 25-FEB-26 Municipal(Public) 12000 0 3 1 1 2 2 0 1 0 5 N/A 0 14 27 59 12 2 0 0 100 0 0 0 0 0 0 0 1649 0 None 0 0 44 26 19 11 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.8 0 1B83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None Progressive/proactive maintenance and CIP. 2023 5SSO10903 5S 616 26-MAR-24 Municipal(Public) 61873 7 7 5 2 4 6 2 2 0 8 N/a 1 206 19 63 12 5 1 0 100 50 0 32 0 0 18 100 17423 17423 Lower only 89 4 20 23 28 9 6 4 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 62 45 5SSO10903 Woodland Water Pollution Control Faciality 42929 Co Rd 24, Woodland, CA 95776 WWTP same agency N/a n/a N/a n/a N/a n/a N N N/a N/a N N/a N/a N N/a N/a N N/a N/a N N/a N/a N/a 1 0 0 Y Y Root Intrusion N/a Lower Lateral N/a After clearing lower lateral and cleaning up spill. We CCTV to investigate cause. Root intrusion is the majority cause for spills. We add to root treatment list & monitor on a regular basis to prevent another spill. If FOG is the cause literature is passed out to residents. With have focused on inspecting more liner feet of lower lateral. This pro active measure has helped us reduce total number of spills in a calendar year. If pipe is structurally sound it will be lined and if not a USA will be put down for future repair/replace. 2024 5SSO10903 5S 616 26-MAR-25 Municipal(Public) 61873 9 8 4 3 5 10 1 2 0 0 N/a 2 206 19 63 12 5 1 0 100 50 0 32 0 0 18 100 17528 17528 Lower only 89 4 20 23 28 9 6 4 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 49.9 45.1 5SSO10903 Woodland Water Pollution Control Faciality 42929 Co Rd 24, Woodland, CA 95776 WWTP same agency N/a n/a N/a n/a N/a n/a N N N/a N/a N N/a N/a N N/a N/a N N/a N/a N N/a N/a N/a 2 0 0 Y Y Root Intrusion N/a Lower Lateral N/a Contain the spill and instruct the homeowner or reporting party to cease using water. Take photographs and clear the blockage using appropriate equipment (e.g., Rodder, Jetter). Perform a CCTV inspection of the lower lateral to identify the cause of the spill. Measure the spill to calculate the number of gallons, then use a Vac-Con to fully capture/clean up the spill. During the cleanup, take additional photographs and confirm with the reporting party or homeowner the exact dates and times the spill was first noticed. In 2024, we successfully lined 93 lower laterals from the cleanout to the main. Additionally, our crews repaired or replaced 604 feet of sewer infrastructure. We also conducted inspections on 78,130 feet of lower lateral, which helped reduce spills. When FOG (Fats, Oils, and Grease) was identified, our team, in collaboration with Environmental Compliance, distributed informational literature to residents and apartment complexes. 2025 5SSO10903 5S 616 30-MAR-26 Municipal(Public) 61623 6 10 5 2 5 9 4 2 3 0 N/a 2 207 19 63 12 5 1 0 100 50 0 32 0 0 18 100 17567 17567 Lower only 90 4 20 25 28 10 7 4 0 2 100 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 3 0 60.6 42.8 5SSO10903 Woodland Water Pollution Control Faciality 42929 Co Rd 24, Woodland, CA 95776 WWTP same agency N N N/a N/a N N/a N/a N N/a N/a N N/a N/a N N/a N/a 2 0 0 Y Y Root Intrusion N/a Lower Lateral N/a There are no ongoing spills happing at this time. We are proactive in CCTV both lower & mainline to spot any issues/defects that need to be replaced or repaired. Once a system deficiency is identified through CCTV we schedule a method of repair depending on the observation. Either open cut repair/replace or lining and/or rodding to remove roots and restoring flow. 2023 5SSO10901 5S 616 04-DEC-25 Municipal(Public) 156929 12 38 4 2 3 5 4 1 0 0 N/A 6 476 62 19 14 4 1 0 100 30 17 26 27 0 0 100 46535 0 None 0 1 8 18 31 27 4 11 0 0 100 0 4 7 3 3 0 0 0 0 17 0 5 7 11 0 0 0 0 0 23 1 281 40 5A340108002 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency N 62 2 6 Y Y Root Intrusion FOG, Debris (wipes) Gravity Mainline None flow monitoring, model calibration, CIP (condition assessment, capacity assurance, prioritization) 2024 5SSO10901 5S 616 04-DEC-25 Municipal(Public) 140375 3 36 4 2 8 13 5 2 0 1 0 4.6 472.1 63 18 15 4 0 0 100 35 22 10 33 0 0 100 47566 0 None 0 0 7 19 31 27 4 11 0 1 100 0 4 7 3 3 0 0 0 0 17 0 6 7 11 0 0 0 0 0 24 .6 262.3 35.6 5A340108002 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency Y N SacSewer 5SSO10912 N/A 62 2 6 Y Y Root Intrusion Also FOG and debris (rags) Gravity Mainline N/A None scheduling of preventative maintenance and cleaning activities, condition assessment, flow monitoring, project prioritization 2025 5SSO10901 5S 616 26-MAR-26 Municipal(Public) 158513 2 44 5 1 8 10 4 2 0 1 6 477 62 19 14 4 1 0 100 36 13 22 28 0 1 100 47763 0 None 0 1 7 18 31 27 4 10 0 2 100 2 11 10 16 4 0 0 0 0 43 0 0 0 0 0 0 0 0 0 0 1 275 39 5A340108002 SacSewer - 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency Y N SacSewer 5SSO10912 62 2 6 Y Y Root Intrusion Grease, Structural Gravity Mainline None None scheduling of preventative maintenance and cleaning activities, condition assessment, flow monitoring, project prioritization 2023 5SSO10907 5S 616 03-APR-24 Municipal(Public) 2021 2 0 0 1 0 0 0 0 0 0 0 2 11 30 52 18 0 0 0 100 100 0 0 0 0 0 100 714 0 None 0 11 50 39 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 3 0 4 2 5A310101001 001, , CA WWTP same agency N 0 0 0 N Y Debris-wipes/Non-disposables Pump Station - Mechanical none currently completing I & I upgrade project, due to complete by end of 2024 2025 5SSO10907 5S 616 16-MAR-26 Municipal(Public) 2058 1 1 0 1 0 0 0 0 0 0 Matthew Anderson Grade 5 Wastewater certification David Borroto Grade 2 wastewater certification Andrew Lutz OIT wastewater certification 2 11 30 52 18 0 0 0 100 100 0 0 0 0 0 100 714 0 None 0 11 50 39 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 3 0 4 1 5A310101001 001, , CA WWTP same agency N 0 0 0 Y Other (specify below) Force main break. See attached Force Main Force main break. See attached none Cleaning and inspections 2023 5SSO10908 5S 616 27-AUG-24 Municipal(Public) 6428 2 3 1 1 0 0 0 0 0 0 wastewater 2 28 57 18 18 0 0 0 93 0 7 0 0 0 0 7 1868 0 None 0 5 10 10 15 10 40 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 8 0 5SSO10908 Colusa CS, 425 Webster Street, Colusa, CA 95932 WWTP same agency N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Pump Station - Controls N/A none Clean sewer lines and clean lift stations 2024 5SSO10908 5S 616 07-OCT-25 Municipal(Public) 6428 2 3 1 1 0 0 0 0 0 0 wastewater 2 10 57 18 18 0 0 0 93 0 7 0 0 0 0 7 1868 0 None 0 5 10 10 15 10 40 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 2 0 0 0 0 6 0 8 0 5SSO10908 2820 Will S. Green Ave Colusa CA, 95932 WWTP other agency N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Pump Station - Controls N/A none Clean sewer lines and clean lift stations 2025 5SSO10908 5S 616 04-MAR-26 Municipal(Public) 6675 2 3 1 1 0 0 0 0 0 0 N/A 2 0 57 18 18 0 0 0 93 0 7 0 0 0 0 7 1868 0 None 0 5 10 10 15 10 40 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 2 0 0 0 0 6 0 8 0 5SSO10908 2820 Will S. Green Ave Colusa CA, 95932 WWTP same agency N N/A N/A N/A 0 0 0 Debris-General N/A Pump Station - Controls N/A None Clean sewer lines, manholes, and lift stations 2023 5SSO10910 5S 616 22-MAR-24 Municipal(Public) 4650 1 2 2 2 4 2 1 2 0 0 All Collections Systems workers, mechanics, Constructions Crew, etc. are required to hold Distribution Licenses as well. 13 39 90 9 1 0 0 0 0 75 15 10 0 0 0 0 3400 1700 Lower only 32 1 20 20 59 0 0 0 0 0 100 0 2 1 0 0 0 0 0 0 3 0 3 19 6 0 0 0 0 0 28 2 4 4 5SSO10910 Copper Cove WWTP - 5130 Kiva Place 95228 WWTP same agency N 0 2 0 Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A Routine lift station pumping, cleaning, and inspection. Hydro cleaning and cctv of the system, weekly lift station inspections. 2024 5SSO10910 5S 616 19-DEC-25 Municipal(Public) 4650 2 1 1 2 2 1 0 1 0 0 All Collections Systems workers are Certified in Distribution Systems 13 39 90 9 1 0 0 0 100 75 15 0 0 0 0 100 3400 1700 Lower only 32 1 20 20 59 0 0 0 0 0 100 0 2 1 0 0 0 0 0 0 3 0 3 19 6 0 0 0 0 0 28 2 4 4 5B050105001 Copper Cove WWRF, 5130 Kiva Place, Copperopolis, CA 95228 WWTP same agency N 0 2 0 Y Damage by Others Not Related to Collection System Construction/Maintenance Damage caused by electrical contractor installing new underground electrical. Gravity Mainline n/a n/a Continue routine lift station cleaning and pumping and inspections. 2025 5SSO10910 5S 616 23-MAR-26 Municipal(Public) 4650 1 3 1 2 2 1 0 1 0 5 All Collections Systems workers are Certified in Distribution Systems 13 39 90 9 1 0 0 0 100 75 15 0 0 0 0 100 3400 1700 Lower only 32 1 20 20 59 0 0 0 0 0 100 0 2 1 0 0 0 0 0 0 3 0 3 19 6 0 0 0 0 0 28 2 4 1 5B050105001 Copper Cove WWRF 5130 Kiva Place Copperopolis CA 95228 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 2 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance Damage caused by electrical contractor installing new underground electrical. Gravity Mainline N/A None Continue to budget for Lift Station Rehabilitation and Force Main Replacement Projects. 2023 5SSO10912 5S 616 27-MAR-24 Municipal(Public) 1152878 39 185 38 20 42 33 28 27 0 0 Other Staff Certification Total Count - 177 Automotive Svc Excellence - 2 Backflow Prevention Assembly Tester - 2 CA Board of Professional Engineers - 22 ISA-Certified Control Systems Technician - 2 Medical Certificate - 145 Welder Certificate - 3 Water Treatment Plant Operator - 1 86 3155 53 31 11 4 1 0 100 7 23 56 14 0 0 100 305948 305948 Lower only 1571 2 22 24 37 14 0 0 0 1 100 0 20 11 11 6 0 0 0 0 48 1 14 23 18 1 0 0 0 0 57 0 913 303 5SSO11045 Sacramento Regional CS, 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP same agency 5SSO11362 SMD No. 2 CS, , Auburn, CA 95603 SSS other agency 5SSO10901 7266 Amherst St, Sacramento, CA, , CA SSS other agency N 963 44 0 Y Y Root Intrusion Other (specify below) 2023 Spills: Air Relief Valve (ARV)/Blow-Off Valve (BOV) - 1 Force Main - 2 Gravity Mainline - 86 Lower Lateral - 519 Manhole - 4 Pump Station-Power - 7 All 2023 spills have been certified in CIWQS and therefore are no longer ongoing. Below are the different types of actions taken in 2023 after a spill: Plan Re-Inspection of sewer; Inspected Sewer Using CCTV to Determine Cause; Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect; Plan Rehabilitation or Replacement of Sewer; Issue Upper Lateral Root Advisory Letter; Plan Dye Test to Confirm Sewer 2024 5SSO10912 5S 616 28-MAR-25 Municipal(Public) 1210000 48 186 41 20 51 52 27 29 0 0 Other Staff Certification Total Count - 196; 3 - Automotive Svc Excellence, 2 - Backflow Prevention Assembly Tester, 10 - Bilingual/Oral/Write, 23 - CA Board of Professional Engineers, 1 - ISA - Certified Control Systems Technician, 154 - Medical Certificate, 2 - Welder Certificate, 1 - Water Treatment Plant Operator 87 3180 52 32 11 4 1 0 100 9 20 55 16 0 0 100 311838 311838 Lower only 1584 2 22 24 37 14 0 0 0 1 100 0 20 11 11 6 0 0 0 0 48 1 14 23 18 1 0 0 0 0 57 0 723 358 5A340108002 001, 8521 Laguna Station Rd. Elk Grove, CA. Sacramento Regional CS WWTP same agency 5A310106001 001, 1800 Booth Rd. Roseville, CA. Dry Creek WWTP WWTP other agency 5A340114001 002, 1395 35th Ave, Sacramento, CA Sac City Combined WW Collection/TRT Sys WWTP other agency N 1000 32 0 Y Y Root Intrusion N/A Other (specify below) Air Relief Valve (ARV)/ Blow-Off Valve (BOV) - 4 ; Force Main - 3 ; Gravity Mainline - 75 ; Lower Lateral - 441 ; Manhole - 1; Pump Station - Mechanical - 1 All 2024 spills have been certified in CIWQS and therefore are no longer ongoing. Inspected Sewer Using CCTV to Determine Cause; Plan Re-Inspection of Sewer; Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect; Plan Rehabilitation or Replacement of Sewer; Issue Upper Lateral Root Advisory Letter; Plan Dye Test to Confirm Sewer. 2025 5SSO10912 5S 616 26-MAR-26 Municipal(Public) 1200000 71 194 47 21 41 54 21 26 0 0 2 - Automotive Svc Excellence, 2 - Backflow Prevention Assembly Tester, 10 - Bilingual/Oral/Write, 27 - CA Board of Professional Engineers, 2 - ISA-Certified Control Systems Technician, 151 - Medical Certificate, 3 - Welder Certificate 87 3204 52 32 11 4 1 0 100 10 20 55 15 0 0 100 315272 315272 Lower only 1600 4 22 24 36 13 0 0 0 1 100 1 20 12 10 5 0 0 0 0 48 0 13 24 16 2 0 0 0 0 55 0 852 293 5A340108002 EchoWater Resource Recovery Facility, 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP same agency 5A310106001 Dry Creek WWTP, 1800 Booth Rd, Roseville, CA 95747 WWTP other agency 5A340114001 Sac City Combined WW Collection/TRT Sys, 1395 35th Ave, Sacramento, CA 95822 WWTP other agency N 1004 32 0 Y Y Root Intrusion N/A Other (specify below) Air Relief Valve (ARV)/Blow-Off Valve (BOV) - 1; Force Main - 1; Gravity Mainline - 71; Lower Lateral - 425; Manhole - 2 All 2025 spills have been certified in CIWQS and therefore are no longer ongoing. Inspected sewer using CCTV to determine cause; Plan re-inspection of sewer; Adjusted schedule/method of preventive maintenance; Repaired facilities or replaced defect; Plan rehabilitation or replacement of sewer; Issue Upper Lateral Root Advisory Letter; Plan Dye Test to confirm sewer. 2023 5SSO10916 5S 616 27-MAR-24 Municipal(Public) 826 0 3 1 0 1 3 0 0 0 4 None 1 7 98 0 2 0 0 0 100 0 100 0 0 0 0 100 347 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 4 4 5SSO10916 Csa 3-Lake Camanche CS, 12800 Ridge Road, Sutter Creek, CA 95685 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 None 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2024 5SSO10916 5S 616 25-MAR-25 Municipal(Public) 826 0 3 1 0 1 3 0 0 0 4 None 1 7 98 0 2 0 0 0 100 0 100 0 0 0 0 100 347 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 4 4 5B031010001 CSA 3-Lake Camanche WWTP, 2710 Curran Road, Ione, CA 95640 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2025 5SSO10916 5S 616 30-MAR-26 Municipal(Public) 826 0 3 1 0 1 3 0 0 0 4 None 1 7 98 0 2 0 0 0 0 0 100 0 0 0 0 0 347 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 4 4 5B031010001 CSA 3-Lake Camanche WWTP, 2710 Curran Road, Ione, CA 95640 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Gravity Mainline N/A N/A N/A 2023 5SSO10921 5S 616 29-MAR-24 Municipal(Public) 70717 1 3 2 1 4 1 1 1 0 6 N/A 7 164 37 36 17 4 3 3 100 62 8 30 0 0 0 100 16431 16429 Lower only 111 1 14 42 24 9 5 5 0 0 100 1 0 0 2 0 0 0 0 0 3 0 0 3 0 0 0 0 0 0 3 0 38 7 5SSO10921 Davis CS, 23 Russell Boulevard, Davis, CA 95616 WWTP same agency N N N/A N/A N/A 4 1 0 Y Y Root Intrusion Root intrusion was the cause of the four SSO's Roots accessed the pipes through breaks at two locations, and pipe joints for the other two. Other (specify below) Two failure points were gravity mains, and the other two were lower laterals. CCTV inspections were performed at the four SSO locations. Follow up actions were performed at three locations. The fourth location has been scheduled and work will be performed by a contractor. Root removal was performed at all four SSO locations. Two mainline repairs were completed. One lower lateral was chemically treated for root control, and the other lower lateral is included in a CIPP project that is out to bid currently. 2024 5SSO10921 5S 616 18-DEC-25 Municipal(Public) 65832 0 3 2 1 3 1 1 1 0 5 N/A 6.5 164 37 36 17 4 3 3 100 62 8 30 0 0 0 100 16431 16429 Lower only 111 1 14 42 24 9 5 5 0 0 100 1 0 0 2 0 0 0 0 0 3 0 0 3 0 0 0 0 0 0 3 0 24 6.2 5A570100001 001, 45400 Co Rd 28H , Davis, CA WWTP same agency N N/A N/A 4 1 0 Y Y Root Intrusion Root intrusion was the cause of the two lower lateral SSO's, while root debris from a private lateral caused the gravity main SSO. Other (specify below) Two failure points were lower laterals, and the other was a gravity main. One gravity main and two lower laterals were cleaned, inspected with CCTV, and other follow up actions were taken at the SSO locations. Root removal was performed at the two lower lateral SSO locations. Both are scheduled for chemical root control treatment, and one for CIPP. Debris was removed from the mainline SSO location. We are working with the homeowner to install a backflow device on the private lateral due to a sub-grade bathroom. 2025 5SSO10921 5S 616 17-MAR-26 Municipal(Public) 70717 2 2 2 1 1 2 1 1 0 4 N/A 6.5 164 37 36 17 4 3 3 100 62 8 30 0 0 0 100 16433 16431 Lower only 111 1 14 42 24 9 5 5 0 0 100 1 0 0 2 0 0 0 0 0 3 0 0 3 0 0 0 0 0 0 3 0 26.7 8.2 5A570100001 001, 45400 Co. Rd. 28H , Davis, CA 95616 WWTP same agency N N/A N/A 4 1 0 Y Y Root Intrusion Root intrusion was the cause of the two lateral SSO's. Manhole The infrastructure failure point was a MH. The outside drop failed at the connection point to the MH causing a collapse. The MH received flow from a sewer lift station. The two laterals were cleaned, and inspected with CCTV. The laterals were inspected with CCTV, with one being scheduled for CIPP repair. The failed MH was removed from the system with its downstream MH (60' away) being replaced. 2023 5SSO10923 5S 616 28-MAR-24 Municipal(Public) 35292 4 6 9 1 4 8 2 3 0 0 34 172 64 22 9 4 0 1 100 55 7 13 10 0 15 100 9942 9942 Lower only 75 0 19 32 41 0 0 0 0 8 100 0 3 8 4 0 0 0 0 0 15 0 4 4 7 0 0 0 0 0 15 0 32 10 5B090102001 Deer Creek WWTP 1565 Deer Creek Cameron Park, CA, 95682 WWTP same agency N N/A 0 0 3 Y Y Root Intrusion Other major spill causes include Natural Disaster (rainfall exceeded design), Pump Station Mechanical Failure, Debris - General and Debris - Lateral. Lower Lateral Other system infrastructure failure points include manholes, gravity mainlines, force mains, and Pump Station Mechanical failure. None Repaired facilities or replaced defect. Plan rehabilitation or replacement of sewer. Adjusted schedule/method of preventative maintenance. Inspected sewer using CCTV to determine cause. 2024 5SSO10923 5S 616 25-MAR-25 Municipal(Public) 28244 4 10 5 1 3 5 7 2 0 0 N/A. All collection staff certified through CWEA. 35 172 64 22 9 4 0 1 100 55 7 13 10 0 15 100 10087 10087 Lower only 73.4 0 19 32 41 64 0 0 0 8 100 0 3 8 4 55 0 0 0 0 15 0 4 4 7 55 0 0 0 0 15 0 47 22 5B090102001 Deer Creek WWTP 1565 Deer Creek Rd, Cameron Park, CA WWTP same agency N N N/A 0 0 3 Y Y Root Intrusion Other major spill causes include Natural Disasters (rainfall exceeded design), pump station mechanical failure, debris - general and debris - lateral. Lower Lateral Other system infrastructure failure points include manholes, gravity mainlines, force mains, and pump station mechanical failure. None Repaired facilities or replaced defect. Plan rehabilitation or replacement of sewer. Adjusted schedule/method of preventative maintenance. Inspected sewer using CCTV to determine cause. 2025 5SSO10923 5S 616 24-MAR-26 Municipal(Public) 24425 2 12 6 2 4 7 7 3 0 0 32.8 172.4 64 22 9 4 0 1 100 62 7 8 11 0 12 100 9770 9770 Lower only 69.6 0 19 32 41 0 0 0 0 8 100 0 3 8 4 0 0 0 0 0 15 0 4 4 7 0 0 0 0 0 15 0 33 43 5B090102001 Deer Creek WWTP, 1565 Deer Creek Road, Cameron Park, CA 95682 WWTP same agency N 0 0 3 Y Y Root Intrusion Lower Lateral Inspection of sewer assets located within FEMA floodplain Repaired facilities or replaced defects. Plan rehabilitation or replacement of sewer. Adjusted schedule/method of preventative maintenance. Inspected sewer using CCTV to determine cause. 2023 5SSO10926 5S 616 22-AUG-24 Prison 0 0 1 1 0 1 1 0 0 0 2 0 0 7 0 0 100 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 4 0 7 7 5B390100001 001, , Tracy, CA WWTP same agency N n/a 0 0 0 N Y Fats, Oil and Grease (FOG) Pump Station - Power none none 2023 5SSO10929 5S 616 25-MAR-24 Municipal(Public) 16790 6 3 1 2 3 1 0 0 0 0 Does Not include California Wastewater Operator certifications (Collections only) 23 24 20 40 40 0 0 0 100 20 40 40 0 0 0 100 6161 6161 Lower only 47 10 30 30 30 0 0 0 0 0 100 0 5 4 6 0 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 30 10 47 5SSO10929 Clubhouse & Prestwick Drive Discovery Bay Ca. 94505, , CA WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 4 11 0 N Y Other (specify below) No spills reported in 2023. All No Spill reports were submitted monthly as required Other (specify below) No fail points were reported in 2023 N/A Annual sonar inspection of all gravity lines and weekly inspections of lift stations and routine sight checks of all exposed bridge crossings. 2024 5SSO10929 5S 616 02-JAN-25 Municipal(Public) 16790 4 3 1 2 2 1 0 0 0 0 Does Not include California Wastewater Operator certifications (Collections only) 23 24 20 40 40 0 0 0 100 20 40 40 0 0 0 100 6161 6161 Lower only 47 10 30 30 30 0 0 0 0 0 100 0 5 4 6 0 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 30 10 47 5SSO10929 Clubhouse & Prestwick Drive Discovery Bay Ca. 94505, , CA WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 4 11 0 N Y Other (specify below) No spills reported in 2024. All No Spill reports were submitted monthly as required Other (specify below) No fail points were reported in 2024 N/A Annual sonar inspection of all gravity lines and weekly inspections of lift stations and routine sight checks of all exposed bridge crossings. 2023 5SSO10931 5S 616 28-MAR-24 Municipal(Public) 18988 1 3 2 2 4 1 2 0 0 0 NA 0 75 12 61 15 9 3 0 100 0 0 0 0 0 0 0 6189 15 None 0 5 15 14 19 19 18 10 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5 5 3 5SSO10931 Dixon CS, 600 East A Street, Dixon, CA 95620 WWTP same agency N N NA NA NA 0 0 0 Y Y Debris from Lateral NA Manhole NA NA Hired additional staff January 2024. 2024 5SSO10931 5S 616 31-MAR-25 Municipal(Public) 19403 1 7 2 2 5 2 0 1 0 0 N/A 0 79.7 11 63 14 9 3 0 100 0 0 0 0 0 0 0 6674 15 None .1 12 15 14 19 12 18 10 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.5 4.7 3.9 5A480101001 Dixon WWTF, 6915 Pedrick Road, Dixon, CA 95620 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Debris-wipes/Non-disposables Pump Station - Mechanical N/A Hired new staff January 2024. Completed 27 Sewer Rehabilitation Phase 1 project. Updated CCTV truck software. Increased FROG and flushable wipes social media campaign. 2025 5SSO10931 5S 616 30-MAR-26 Municipal(Public) 19403 1 3 2 2 2 2 0 0 0 0 N/A 0 50 11 63 14 9 3 0 100 0 0 0 0 0 0 0 7039 15 None .1 12 15 14 19 12 18 10 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2.5 24 3.1 5A480101001 Dixon WWTF, 6915 Pedrick Road, Dixon, CA 95620 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Pump Station - Mechanical N/A N/A Finalizing design for lift station replacement. Maintained hot spot locations. Performed several clean out replacements and installed additional sewer manholes. Continued FROG and flushable wipes social media campaign. 2023 5SSO10933 5S 616 20-FEB-26 Municipal(Public) 98 0 5 1 1 0 1 2 0 1 0 0 2 11 8 2 0 1 0 0 0 100 0 0 0 0 0 0 2 2 None 0 1 2 50 49 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 3 5SSO10933 Donner Summit CS, , Soda Springs, CA 96162 WWTP same agency N NA 4 0 0 N Y Other (specify below) No Spills Other (specify below) No Spills NA NA 2024 5SSO10933 5S 616 20-FEB-26 Municipal(Public) 98 0 5 1 1 0 0 2 0 1 0 0 2 11 8 2 0 1 0 0 0 100 0 0 0 0 0 0 2 2 None 0 1 2 50 49 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 4 5SSO10933 Donner Summit CS, , Soda Springs, CA 96162 WWTP same agency N NA 4 0 0 N Y Other (specify below) No Spills Other (specify below) No Spills No Spills No Deficiencies 2025 5SSO10933 5S 616 27-FEB-26 Municipal(Public) 98 1 5 1 1 0 1 0 0 0 1 NA 1.5 12 8 2 0 1 0 0 11 100 0 0 0 0 0 100 336 2 None 0 1 2 50 47 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 6 1 3.5 3.5 5SSO10933 Donner Summit CS, , Soda Springs, CA 96162 WWTP same agency Y N Serene Lake County Water Dist. 5SSO10933 NA 4 0 0 N Y Other (specify below) No Spills during the year. Other (specify below) No Failures leading to spills during the year. No Spills during the year. 10 year plan to upgrade lift stations and annual line inspection and cleaning for the year. 2023 5SSO10934 5S 616 22-MAR-24 Municipal(Public) 635 1 2 2 2 4 2 1 2 0 0 3 8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 510 255 Lower only 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 2 2 5SSO10934 Douglas Flat/Vallecito CS, , San Andreas, CA 95249 WWTP other agency N N/A 0 1 0 Y Flow Exceeded Capacity (Separate Collection System Only) N/A Pump Station - Mechanical N/A N/A Continued cleaning and inspection. Septic Tank Inspection and O&M. Request rehabilitation projects be incorporated into the District's Capital Improvement Program. 2024 5SSO10934 5S 616 19-DEC-25 Municipal(Public) 635 2 1 1 2 2 1 0 1 0 0 All collections system workers are certified in Distribution 3 8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 510 255 Lower only 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 2 2 5B051003001 Douglas Flat/Vallecito WWTP, 1901 Holiday Mine Road off State Route 4 , Douglas Flat, CA 95251 WWTP same agency N N/A 0 1 0 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Air relief flapper plugged with debris causing it not to close N/A Continued TV and Hydro inspections and cleanings. Installed new ARV's 2025 5SSO10934 5S 616 23-MAR-26 Municipal(Public) 635 1 3 1 2 2 1 0 1 0 5 All collections system workers are certified in Distribution 3 8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 510 255 Lower only 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 2 3 5B051003001 Copper Cove WWRF, 5130 Kiva Place, Copperopolis, CA 95228 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) None Continued TV and Hydro inspections and cleanings. Manhole rehabilitations. Included Collections System rehabilitation in the 5-year CIP. 2023 5SSO10935 5S 616 26-MAR-24 Municipal(Public) 166000 7 21 6 4 7 10 4 5 0 32 None 10 592 61 20 13 4 2 0 100 26 25 49 0 0 0 100 54622 54622 Lower only 293 5 43 37 10 4 1 1 0 0 100 3 7 6 1 0 0 0 0 0 17 3 7 6 1 0 0 0 0 0 17 0 301 44 5A310106001 1800 Booth Rd WWTP same agency 5A310106007 5150 westpark Dr WWTP same agency Y N South Placer MUD 5SSO11054 N Placer County 5SSO11362 N Scaramento County 5SSO10912 N/A 131 6 15 Y Y Root Intrusion Lower Lateral None On going preventive maintenance and repairs. Adjusting to spills with new techniques and procedures. One example is the renting of an easement machine to allow better access to open space for the cleaning of mains. CIPP lining projects 2024 5SSO10935 5S 616 08-JAN-25 Municipal(Public) 166000 10 18 6 4 8 9 5 5 0 38 19.9 596 61 20 13 4 2 0 100 26 25 49 0 0 0 100 56554 56554 Lower only 296 5 43 37 10 4 1 1 0 0 100 3 1 1 1 0 0 0 0 0 17 6 6 5 0 0 0 0 0 0 17 0 295.5 53.5 5A310106001 001, , Roseville, CA WWTP same agency 5A310106007 001, , Roseville, CA WWTP same agency Y N Placer County 5SSO11362 N South Placer MUD 5SSO11054 N Sacramento County 5SSO10912 N/A 131 6 15 Y Root Intrusion N/A Lower Lateral N/A N/A On going preventive maintenance and repairs. Adjusting to spills with new techniques and procedures. Renting / owning an easement machine to allow bettre access to open spaces and CIPP projects to prevent I/I 2025 5SSO10935 5S 616 16-JAN-26 Municipal(Public) 167482 2 23 7 4 7 14 2 9 0 36 9.6 615.2 61 21 12 4 2 0 100 26 25 49 0 0 0 100 56323 56323 Lower only 302.2 5 43 37 10 4 1 1 0 0 100 3 1 1 1 0 0 0 0 0 17 7 6 5 0 0 0 0 0 0 18 0 297.1 52.3 5A310106001 001, , Roseville, CA WWTP same agency 5A310106007 001, , Roseville, CA WWTP same agency Y N SPMUD 5SSO11054 N Placer County 5SSO11362 N Sacramento County 5SSO10912 131 6 15 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Gravity Mainline None at this time On going preventive maintenance and repairs, Use of an easement machine, CIPP of mains and laterals. CCTV condition assessment to fine problem areas, On going hydro cleaning. 2023 5SSO10938 5S 616 19-DEC-25 Municipal(Public) 101918 3 30 4 1 10 14 4 1 0 1 2 284 16 60 15 8 1 0 100 2 6 92 0 0 0 100 39285 39285 Lower only 446 2 16 38 34 6 1 0 0 3 100 1 1 4 1 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 8 62 33 5A480105002 EWWTP, 6040 Vaca Station Road, Elmira, CA 95625 WWTP same agency Y N California State Prison - Solano CS 5SSO11184 N California Medical Facility CS 5SSO11180 42 6 13 Y Y Root Intrusion Lower Lateral 890487 6506 Gibson Canyon Road - Attempts by City to remediate effects of spill failed by lack of Contractors interests to submit proposal and limitations by California Fish and Wildlife. City issued Notice of Violation to PG&E. City staff is currently reviewing Stantec on behalf of PG&E and will upload once review is completed. 891878 701 Beythe Ln - The investigation is ongoing due to the difficulty of calculating a reasonable volume as the event took place during recent rain events. Note: Need to add procedure to closeout/finalize events when investigation was completed, and no changes were required. In preparation for the SSMP update, City staff plans to review and revamp many SSMP Element IV – O&M programs, such as CCTV, Flushing, Root Control, FOG program, etc. Spill specific actions taken: 890487_Category 1 Spill @ 6506 Gibson Canyon Road - Sent Notice of Violation to PG&E and in process of modifying encroachment permit to add adequate spill notification and response. 890992_Category 1 Spill @ Peabody Road and Southwood Drive - Modified cleaning frequency and added SmartCover at low point sanitary sewer manhole. 891878_Category 1 Spill @ 701 Beythe Ln. - Distributed fliers to residential subdivision regarding proper disposal on non-flushable wipes. 894221_Category 3 Spill @ Leisure Town Force Main near Mission Church - Repaired force main and initiated design of new force main in 2024 for construction in 2025 2024 5SSO10938 5S 616 31-MAR-25 Municipal(Public) 102256 6 26 4 2 7 7 5 0 0 1 2 285 16 60 15 8 1 0 100 2 6 92 0 0 0 100 39989 39989 Lower only 453.9 2 16 38 34 6 1 0 0 3 100 2 1 4 1 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 8 45 34.3 5A480105002 Easterly Wastewater Treatment Plant, 6040 Vaca Stations Road, Elmira, CA 95625 WWTP same agency Y N California State Prison - Solano CS 5SSO11184 N California Medical Facility CS 5SSO11180 42 6 13 Y Y Fats, Oil and Grease (FOG) and Debris Manhole and Gravity Mainline 895816 @ 791 Markham Ave. - Engineering staff continues to confirm information and check volumes. Investigation concluded before 08/19/2024. 895354 @ 1581 E. Monte Vista Ave. - Spill photographs were not made available in a timely manner. Modifications in our response procedures to ensure reporting meets the compliance requirements. A follow-up meeting will be required with all staff. Investigation concluded before 08/16/2024. 894270 @ 1130 E. Monte Vista Ave. - Additional investigation is needed to check volume estimation, provide creek sampling locations map, and determine any enforcement action. Investigation concluded before 06/21/2024. 893585 @ 290 East Monte Vista Ave. - Confirming pipe condition before spill and verifying volume estimations. Investigation concluded before 04/25/2024. 895816 - Engineering staff confirmed information and volume and concluded no updates were required. Staff was reminded to take additional pictures showing clean-up activities and pictures of flushed and cleaned storm drain manholes. 895354 - Modifications were made to the response procedures to ensure reporting and timely availability of spill pictures meets the compliance requirements. A follow-up meeting with all staff was held to discuss errors for 895354 and 895816. 894270 - CCTV inspection completed and added location to PM program. 893585 - Checked for other sewer lateral connection and non were found. Abandoned the failed sewer line and re-directed sewer lateral to a larger 12-inch sewer main which was also much closer. 2025 5SSO10938 5S 616 01-APR-26 Municipal(Public) 103994 9 25 4 2 12 5 6 4 0 1 2 285 16 60 15 8 1 0 100 2 6 92 0 0 0 100 40123 40123 Lower only 455.4 2 16 38 34 16 1 0 0 3 100 2 1 4 1 2 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 8 52.4 27.6 5A480105002 Easterly Wastewater Treatment Plant, 6040 Vaca Station Rd., Elmira, CA 95625 WWTP same agency Y N California State Prison - Solano CS 5SSO11184 N California Medical Facility CS 5SSO11180 42 6 13 Y Y Root Intrusion followed by FOG, Pipe Structural Problem/Failure, and Debris - Wipes/Non-disposables. Lower Lateral and Gravity Main Line None Spill Event ID: 899773 - CCTV'D lower lateral and created work order to repair sewer lateral. Spill Event ID: 900130 - Created work order to CCTV sewer main. Spill Event ID: 904932 - CCTV'd to find roots. Address added to root cutting, and foaming list until a permanent line replacement. Spill Event ID: 905037 - CCTVd the lateral and made a customer service report #26584, then created WO#46578 - Found an offset under the sidewalk. Plan to repair the cleanout and while doing so replace a small section of the sewer lateral to prevent further spills. Spill Event ID: 905173 - Addressed homeowner to not flush feminine hygiene products. Provided non-flushable wipes outreach materials. 2023 5SSO10940 5F 616 27-MAR-24 Municipal(Public) 8500 3 1 1 1 0 0 0 0 0 1 1 30 70 25 5 0 0 0 100 100 0 0 0 0 0 100 3400 0 None 0 0 10 40 25 15 5 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 1 5c15nc00095 Taft WWTF, Airport , Taft, CA 93268 WWTP same agency N NA 0 1 0 N Y Debris-General NA Gravity Mainline NA NA NA 2024 5SSO10940 5F 616 26-FEB-26 Municipal(Public) 8500 3 2 1 1 2 0 0 0 0 2 2 30 79 15 5 0 0 0 99 1 0 0 0 0 0 1 2000 0 None 0 0 10 10 70 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 4.3 18.5 5C15NC00095 Taft WWTF, Airport , Taft, CA 93268 WWTP other agency Y Y FCTH sewer 5sso10730 1 1 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA We currently have a hotspot program in play where we clean segments with known heavy FOG issues quarterly. 2025 5SSO10940 5F 616 26-FEB-26 Municipal(Public) 8500 0 4 1 1 1 0 0 0 0 3 2 30 70 25 5 0 0 0 100 100 0 0 0 0 0 100 2000 0 None 0 0 5 20 60 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 30 6 5C15NC00095 Taft WWTF, Airport , Taft, CA 93268 WWTP other agency Y Y FCTH sewer 5sso10730 1 1 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA 2023 5SSO10941 5S 616 28-MAR-24 Municipal(Public) 34935 4 6 9 1 4 8 2 3 0 0 19 234 68 20 10 2 0 0 100 37 12 30 0 0 21 100 14483 14483 Lower only 98 0 48 31 9 0 0 0 0 12 100 0 8 11 1 0 0 0 0 0 20 0 2 6 2 0 0 0 0 0 10 0 24 12 5B090102005 El Dorado Hills WWTP 4625 Latrobe El Dorado Hills, CA, 95762 WWTP same agency N N/A 0 0 0 Y Y Pipe Structural Problem/Failure - Installation Other major spill causes include Root Intrusion, Damage by Others not Related to Collection System Construction/Maintenance, Grease Deposition, and Natural Disaster. Force Main Other system infrastructure failure points include manhole, and lower lateral. Inspection of sewer assets located within FEMA floodplain. Added sewer to preventative maintenance program. Repaired facilities or replaced defect. Plan rehabilitation or replacement of sewer. 2024 5SSO10941 5S 616 25-MAR-25 Municipal(Public) 40592 4 10 5 1 3 5 7 2 0 0 N/A. All collection staff certified through CWEA. 19 237 68 20 10 2 0 0 100 37 12 30 0 0 21 100 14497 14497 Lower only 92.1 0 48 31 9 68 0 0 0 12 100 0 8 11 1 37 0 0 0 0 20 0 2 6 2 37 0 0 0 0 10 0 40 22 5B090102005 El Dorado Hills WWTP, 4625 Latrobe Rd, El Dorado Hills, CA 95762 WWTP same agency N N/A 0 0 0 Y Y Pipe Structural Problem/Failure - Installation Other major spill causes include root intrusion, damage by others not related to Collection System Construction/Maintenance, grease deposition, and natural disaster. Force Main Other system infrastructure failure points include manhole, and lower lateral. Inspection of sewer assets located within FEMA floodplain. Added sewer to preventative maintenance program. Repaired facilities or replaced defect. Plan rehabilitation or replacement of sewer. 2025 5SSO10941 5S 616 24-MAR-26 Municipal(Public) 41885 2 12 6 2 4 7 7 3 0 0 19.6 238.1 68 20 10 2 0 0 100 35 12 35 5 0 13 100 14959 14959 Lower only 92.1 0 50 31 9 0 0 0 0 10 100 0 8 11 1 0 0 0 0 0 20 0 2 6 2 0 0 0 0 0 10 0 23 22 5B090102005 El Dorado Hills WWTP, 4625 Latrobe Road, El Dorado Hills, CA 95762 WWTP same agency N 0 0 0 Y Y Debris-General Lower Lateral Inspection of sewer assets located within FEMA floodplain Repaired facilities or replaced defect. Added sewer to preventative maintenance program. Plan rehabilitation or replacement of sewer. 2023 5SSO10944 5S 616 28-MAR-24 Municipal(Public) 7475 1 5 3 1 1 1 0 0 0 0 n/a 0 28 75 10 10 4 1 0 100 0 0 0 0 0 0 0 2443 0 None 0 0 75 0 0 0 0 0 0 25 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 6 6 0 22 20 5SSO10944 Escalon Treatment Plant CS, 1854 Main Street, Escalon, CA 95320 WWTP same agency N N na na N na na N na na N na na N na na N/A 0 0 0 N Y Debris-Rags N/A Gravity Mainline N/A N/A N/A 2024 5SSO10944 5S 616 22-SEP-25 Municipal(Public) 7475 1 5 3 1 1 1 0 0 0 0 N/A 0 28 75 10 10 4 1 0 100 0 0 0 0 0 0 0 2443 0 None 0 0 75 0 0 0 0 0 0 25 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 6 6 0 34 10 5SSO10944 Escalon Treatment Plant CS, 1854 Main Street, Escalon, CA 95320 WWTP same agency N N na na N na na N na na N na na N na na N/A 0 0 0 N Y Debris-General N/A Gravity Mainline N/A N/A N/A 2025 5SSO10944 5S 616 25-AUG-26 Municipal(Public) 7475 1 5 3 1 1 1 0 0 0 0 N/A 0 28 75 10 10 4 1 0 100 0 0 0 0 0 0 0 2443 0 None 0 0 75 0 0 0 0 0 0 25 100 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 34 10 5SSO10944 Escalon Treatment Plant CS, 1854 Main Street, Escalon, CA 95320 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Debris-General N/A Gravity Mainline N/A N/A N/A 2023 5SSO10945 5S 616 24-MAR-25 Municipal(Public) 3744 0 2 1 1 0 0 0 0 0 3 N/A 0 9.5 53 39 8 0 0 0 100 0 0 0 0 0 0 0 979 0 None 0 5 30 10 40 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.5 1.4 5A570108001 Esparto CSD WWTF, 27228 Hwy 16 , Esparto, CA 95627 WWTP same agency N/A N/A N/A N/A N/A N/A N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Other (specify below) NO SPILLS TO DATE. SEWER JETTING DONE YEARLY OF ENTIRE SYSTEM. Other (specify below) NO FAILURES TO DATE NONE 1200 FEET OF SANITARY SEWER REPLACED AFTER VIDEO INSPECTION SHOWED BELLIES AND SAGS IN A PORTION OF THE SANITARY SEWER. NO OTHER AREAS NEEDED REPLACEMENT 2024 5SSO10945 5S 616 17-MAR-26 Municipal(Public) 3744 0 2 1 1 0 0 0 0 0 3 N/A 0 9.5 53 39 8 0 0 0 100 0 0 0 0 0 0 0 979 0 None 0 5 30 10 40 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.5 1.4 5A570108001 Esparto CSD WWTF, 27228 Hwy 16 , Esparto, CA 95627 WWTP same agency Bridges on the River Restaurant, 2125 Garden Highway, Sacramento, CA 95833 N N/A 0 0 0 N Y Other (specify below) NO SPILLS TO DATE Other (specify below) AFTER VIDEO INSPECTION THE ONLY PROBLEMATIC SECTION OF THE SANITARY SEWER SYSTEM WAS REPLACED LAST YEAR NONE YEARLY SEWER JETTING IS DONE TO PREVENT BACK UPS AND SPILLS 2025 5SSO10945 5S 616 17-MAR-26 Municipal(Public) 3744 0 2 1 1 0 0 0 0 0 3 N/A 0 9.5 53 39 8 0 0 0 100 0 0 0 0 0 0 0 979 0 None 0 5 30 10 40 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.5 1.4 5A570108001 Esparto CSD WWTF, 27228 Hwy 16 , Esparto, CA 95627 WWTP same agency N N/A 0 0 0 N Y Other (specify below) NO SPILLS TO DATE Other (specify below) 1200 LINEAR FEET OF SEWER SYSTEM WAS REPLACED 2 YEARS AGO NONE YEARLY SEWER JETTING IS DONE TO PREVELT BACK UPS AND SPILLS 2023 2SSO10101 2 616 22-MAY-24 School 12000 0 2 1 2 0 0 0 0 0 0 n/a 0 2.3 10 45 45 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 1 1 1 97 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .2 .2 2 019123001 001-EBDA, , CA SSS other agency N n/a 0 0 0 Y Y Root Intrusion none Gravity Mainline none none Regular maintenance (quarterly snaking/jetting) Camera/Video Inspections as needed. 2023 5SSO10949 5S 616 22-MAR-24 Municipal(Public) 1350 1 2 2 2 4 2 1 2 0 0 Collections Systems Workers also hold Distribution Certificates 1 13 95 5 0 0 0 0 100 65 25 10 0 0 0 100 1200 600 Lower only 11 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 1 3 3 5SSO10949 Forest Meadows CS, , San Andreas, CA 95249 WWTP same agency N 0 0 0 Y Y Root Intrusion N/A Manhole N/A N/A Routine hydro cleaning, inspections, and spot cleaning. Lift Station inspections, pumping, and cleaning 2024 5SSO10949 5S 616 19-DEC-25 Municipal(Public) 1350 2 1 1 2 2 1 0 1 0 0 Collections workers are dual certified in distribution also 1 13 95 5 0 0 0 0 100 65 25 10 0 0 0 100 1200 600 Lower only 11 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 3 1 5 5 5B050107004 Forest Meadows WWT & RP, 1040 Forest Meadows Drive, Murphys, CA 95247 WWTP same agency N 0 0 0 Y Root Intrusion n/a Lower Lateral N/A N/A Continued routine hydro cleaning, inspections and spot cleaning. Also continue Lift station maintenance and regular cleaning. 2025 5SSO10949 5S 616 23-MAR-26 Municipal(Public) 1350 1 3 1 2 2 1 0 1 0 5 Collections workers are dual certified in distribution also 1 0 95 5 0 0 0 0 100 65 25 10 0 0 0 100 1200 600 Lower only 11 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 3 1 5 5 5B050107004 Forest Meadows WWTP 1040 Forest Meadows Drive Murphys CA 95247 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Root Intrusion Lower Lateral N/A N/A Continued routine hydro cleaning, inspections and spot cleaning. Also continue Lift station maintenance and regular cleaning. 2023 5SSO10951 5S 616 27-MAR-24 Municipal(Public) 26000 9 11 4 0 5 3 0 0 0 0 NA 6 87 29 54 15 2 0 0 100 30 4 24 42 0 0 100 7500 18 Upper and Lower 1 4 10 63 23 0 0 0 0 0 100 0 3 2 5 0 0 0 0 0 10 0 0 1 0 0 0 0 0 0 1 6 6 2 5B340101001 City of Galt WWTP 10059 Twin Cities Rd Galt Ca 95632 WWTP same agency N 6 1 0 Y Debris-General Other (specify below) Age None Sewer improvement master plan 2024 5SSO10951 5S 616 01-APR-25 Municipal(Public) 26000 10 12 3 3 5 5 0 0 0 0 NA 6 87 29 54 14 3 0 0 100 30 4 24 42 0 0 100 8335 0 None 0 4 10 63 23 0 0 0 0 0 100 0 3 2 5 0 0 0 0 0 10 0 0 1 0 0 0 0 0 0 1 6 9.5 .3 5B340101001 001, , CA WWTP same agency N NA 6 1 0 Y Y Construction Diversion Failure NA Force Main NA None NA 2025 5SSO10951 5S 616 16-MAR-26 Municipal(Public) 26000 8 14 3 2 5 6 0 0 0 0 NA 6 87 29 54 14 3 0 0 100 30 4 24 42 0 0 100 8963 0 None 0 4 10 63 23 29 0 0 0 0 100 0 3 2 5 30 0 0 0 0 10 0 0 1 0 30 0 0 0 0 1 6 0 1.7 B340101001 001, , CA WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a NA 6 1 0 Y Y Debris-General NA Lower Lateral NA None NA 2023 5SSO10952 5S 616 28-MAR-24 Municipal(Public) 197 0 3 1 0 1 3 0 0 0 4 N/A 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 80 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 5SSO10952 Gayla Manor CS, 12800 Ridge Road, Sutter Creek, CA 95685 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A Flush Quarterly 2024 5SSO10952 5S 616 17-NOV-25 Municipal(Public) 197 0 3 1 0 1 3 0 0 0 4 N/A 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 80 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 5B031025001 Gayla Manor WWTP, 21530 Gayla Drive, Pine Grove, CA 95665 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A Flush quarterly 2025 5SSO10952 5S 616 30-MAR-26 Municipal(Public) 197 0 3 1 0 1 3 0 0 0 4 N/A 1 1 100 0 0 0 0 0 0 100 0 0 0 0 0 0 80 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 5B031025001 Gayla Manor WWTP, 21530 Gayla Drive, Pine Grove, CA 95665 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A Flush quarterly 2023 5SSO10953 5S 616 22-MAR-24 Other 1000 0 1 0 0 0 1 0 0 0 0 NA 3 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 0 0 0 5B05NC00004 New Melones Lake Glory Hole Recreation Area, Whittle Rd & Hwy 49 , Angels Camp, CA 95222 WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None NA NA 2023 2SSO10102 2 616 02-APR-24 Municipal(Public) 5322 0 4 1 3 0 0 0 0 0 0 1 18 28 51 16 5 0 0 100 0 20 80 0 0 0 100 1370 12 Upper and Lower 1 5 7 30 33 11 7 7 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 1 0 0 0 0 0 0 1 0 12 1 2 283003001 206.50 Napa River HA, , CA WWTP same agency N 2 5 1 N Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline n/a working on budgeting to replace old aging sewer lines. 2024 2SSO10102 2 616 10-NOV-25 Municipal(Public) 5230 2 7 3 2 1 0 0 0 0 0 .4 19.5 26 43 24 7 0 0 100 70 18 12 0 0 0 100 1370 0 None .1 8 25 33 23 1 0 10 0 0 100 0 0 1 0 0 0 0 0 0 1 0 3 0 0 0 0 0 0 0 3 0 12 6 2 283003001 206.50 Napa River HA, , CA WWTP same agency N 2 2 0 Y Construction Diversion Failure Gravity Mainline None Active CIP 2025 2SSO10102 2 616 26-MAR-26 Municipal(Public) 5230 1 7 3 2 1 0 0 0 0 0 NA .5 19 26 43 24 7 0 0 100 70 18 12 0 0 0 100 1370 0 None .1 8 25 33 23 1 0 10 0 0 100 0 0 1 1 0 0 0 0 0 2 1 1 0 0 0 0 0 0 0 2 1 50 2 2 283003001 Calistoga Duanweal Wastewater Treatment Plant WWTP same agency N 2 2 0 N Y Root Intrusion Gravity Mainline NA Aging infrastructure replacement projects. 2023 6SSO11101 6A 616 26-MAR-24 Municipal(Public) 2100 1 1 1 1 0 0 0 0 0 0 none 0 10 73 11 16 0 0 0 100 0 0 0 0 0 0 0 662 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 1 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance None Gravity Mainline None None None 2024 6SSO11101 6A 616 16-MAR-26 Municipal(Public) 2100 1 1 1 1 0 0 0 0 0 0 0 10 73 11 16 0 0 0 100 0 0 0 0 0 0 0 662 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 6A29001100 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 SSS same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 1 0 0 N N Other (specify below) None Gravity Mainline None None None 2025 6SSO11101 6A 616 16-MAR-26 Municipal(Public) 2100 2 1 1 1 2 0 0 0 0 0 None 0 10 73 11 16 0 0 0 100 0 0 0 0 0 0 0 662 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.3 3.3 6A29001100 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 1 0 0 N Y Other (specify below) None Gravity Mainline None None None 2023 5SSO10954 5S 616 26-MAR-24 Municipal(Public) 120 4 6 9 1 4 8 2 3 0 0 0 2 89 0 0 0 0 11 100 0 0 0 0 0 0 0 46 46 Lower only 1 0 15 0 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A090102008 Gold Ridge Forest Unit 3, Sly Park , Pollock Pines, CA 95726-9444 WWTP same agency N 0 0 0 Y Y Other (specify below) None. Other (specify below) None. None. N/A 2024 5SSO10954 5S 616 25-MAR-25 Municipal(Public) 120 4 10 5 1 3 5 7 2 0 0 N/A. All collections staff certified through CWEA. 0 2 89 0 0 0 0 11 100 0 0 0 0 0 0 0 46 46 Lower only 1 0 15 0 85 89 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A090102008 Gold Ridge Forest Unit 3, Sly Park , Pollock Pines, CA 95726-9444 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) None Other (specify below) None None N/A 2025 5SSO10954 5S 616 24-MAR-26 Municipal(Public) 113 2 12 6 2 4 7 7 3 0 0 0 1.1 100 0 0 0 0 0 100 0 0 0 0 0 0 0 45 45 Lower only .2 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A090102008 Gold Ridge Forest Unit 3, Sly Park , Pollock Pines, CA 95726-9444 WWTP other agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None N/A 2025 6SSO11102 6A 616 13-MAY-26 Municipal(Public) 190 0 1 1 1 0 0 0 0 0 0 .6 2.5 9 87 1 0 0 0 97 0 3 0 0 0 0 3 0 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 1 0 6A265300900 Bridgeport PUD Treatment Plant, PO Box 473 , Bridgeport, CA 93517 WWTP same agency N 2 0 0 N Y Other (specify below) pipe collapse during an extreme wet weather event Gravity Mainline N/A N/A N/A 2023 6SSO11103 6A 616 13-MAR-26 Prison 4500 0 2 1 1 0 0 0 0 0 0 One Grade II WWTP Operator One Grade I WWTP Operator/Plumber 0 3 25 25 50 0 0 0 100 0 0 0 100 0 0 100 0 0 Upper and Lower 3 0 0 50 50 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 6SSO11103 Ccc @ Susanville, Csp-Lc CS, P.O. Box 790 , Susanville, CA 96130 WWTP same agency N 0 0 0 N Y Other (specify below) No spills Other (specify below) None None None 2024 6SSO11103 6A 616 13-MAR-26 Prison 4500 0 2 1 1 0 0 0 0 0 0 Two Grade II operator One Grade II OIT 0 3 25 25 50 0 0 0 100 0 0 0 100 0 0 100 0 0 Upper and Lower 3 0 0 50 50 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 6A186000500 CCC @ Susanville, CSP-LC WTF, PO Box 790 , Susanville, CA 96130 WWTP same agency N 0 0 0 N Y Other (specify below) No Spills Other (specify below) No Spills No Spills No Spills 2025 6SSO11103 6A 616 13-MAR-26 Prison 4500 0 2 1 1 0 0 0 0 0 0 0 3 25 25 50 0 0 0 100 0 0 0 100 0 0 100 0 0 Upper and Lower 3 0 0 50 50 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 6A186000500 CCC @ Susanville, CSP-LC WTF, PO Box 790 , Susanville, CA 96130 WWTP same agency N 0 0 0 N Y Other (specify below) No Spills Other (specify below) No Spills No Spills No Spills 2023 5SSO10958 5S 616 02-APR-24 Municipal(Public) 12550 4 2 1 1 0 0 0 0 0 0 NA 3 62 74 13 11 2 0 0 100 100 0 0 0 0 0 100 4355 0 None 0 1 6 36 25 4 4 4 20 0 100 0 3 0 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 18 1 5A290100001 001, , Grass Valley, CA WWTP same agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Cleared roots 2024 5SSO10958 5S 616 14-JAN-25 Municipal(Public) 12000 3 3 1 1 0 0 0 0 0 0 0 2.7 61.5 74 13 11 2 0 0 100 100 0 0 0 0 0 100 4355 5 None .1 1 6 36 25 4 4 4 20 0 100 0 3 0 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 18 1 5A290100001 001, , Grass Valley, CA WWTP same agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Cleared roots 2025 5SSO10958 5S 616 17-MAR-26 Municipal(Public) 13364 0 6 1 1 0 0 0 0 0 0 0 2.7 63 74 13 11 2 0 0 100 100 0 0 0 0 0 100 4592 5 None .1 1 6 36 25 4 4 4 20 0 100 0 3 0 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 15 1 5A290100001 001, , Grass Valley, CA WWTP same agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Cleared roots 2024 5SSO20028 5S 616 18-MAR-26 Municipal(Public) 1041 1 1 1 1 1 0 1 0 0 2 .6 2.6 6 54 22 0 0 0 82 18 0 0 0 0 0 18 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5C500110001 Grayson Comm Serv Dist WTF, River Road, Grayson, CA 95363 WWTP same agency N N/A 0 0 0 N Y Other (specify below) No spills have been reported Other (specify below) No current failure points reported No ongoing spill investigations No actions currently needed to take for system deficiencies 2024 5SSO20028 5S 616 24-DEC-25 Other 978 1 1 1 1 1 0 1 0 0 2 .6 2.6 6 54 22 0 0 0 82 18 0 0 0 0 0 18 0 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 5C500110001 Grayson Comm Serv Dist WTF, River Road, Grayson, CA 95363 WWTP same agency N 0 0 0 Y Y Pump Station Failure - Power No spills Pump Station - Controls None Two new submersible pump were installed at sewer lift station. 2025 5SSO20028 5S 616 18-MAR-26 Other 978 1 1 1 1 1 0 1 0 0 2 .6 2.6 6 54 22 0 0 0 82 18 0 0 0 0 0 18 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 5C500110001 Grayson Comm Serv Dist WTF, River Road, Grayson, CA 95363 WWTP same agency N N none n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a none 0 0 0 N Y Pump Station Failure - Controls Pump Station - Power none Two new submersible pumps were installed at the lift station, A new mechanical screen will be installed and two new aerators at wastewater facility. 2023 6SSO11108 6A 616 04-APR-24 Municipal(Public) 950 1 2 5 1 1 0 0 0 0 0 na 100 100 98 2 0 0 0 0 100 100 0 0 0 0 0 100 258 0 None 0 0 0 50 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2 50 100 0 6A180004501 Leavitt Lake Sewage Treatment Ponds, 471-830 Buffum Lane, Susanville, CA 96130 SSS same agency N 0 0 0 N Y Debris from Lateral na Pump Station - Mechanical NA NA INSTALL NEW PUMPS 2024 6SSO11108 6A 616 10-APR-25 Municipal(Public) 950 1 2 5 1 0 0 0 0 0 1 n/a 1 1 98 2 0 0 0 0 100 100 0 0 0 0 0 100 258 0 None 0 0 0 50 50 98 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 1 1 0 100 0 0 0 0 2 .5 0 0 6a180004501 Leavitt Lake Sewage Treatment Ponds, 471-830 Buffum Lane, Susanville, CA 96130 SSS same agency N N na na N na na N na na N na naa N na na n/a 0 0 0 N N Debris from Lateral n/a Pump Station - Mechanical not pumping. power went out. needed to reset the computer n/a repairs made on need basis. 2025 6SSO11108 6A 616 27-JAN-26 Municipal(Public) 950 2 2 5 1 0 0 0 0 1 0 N/A .2 2.7 98 2 0 0 0 0 100 100 0 0 0 0 0 100 258 0 None 0 0 0 50 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2 0 0 0 6A180004501 Leavitt Lake Sewage Treatment Ponds, 471-830 Buffum Lane, Susanville, CA 96130 SSS same agency N 0 0 0 N Y Debris from Lateral N/A Pump Station - Mechanical N/A N/A N/A 2023 5SSO10961 5F 616 30-DEC-25 Municipal(Public) 1569 0 7 2 1 6 1 2 1 0 0 N/A 7 35 50 25 25 0 0 0 100 75 10 15 0 0 0 100 0 0 None 0 0 1 1 98 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 15 0 0 0 0 0 15 10 4 3 5C550100001 Groveland CS, , Groveland, CA 95321 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 6 1 0 N Y Other (specify below) Roots from lateral wye into main line. Gravity Mainline N/A None None 2024 5SSO10961 5F 616 30-DEC-25 Municipal(Public) 1577 1 9 3 1 6 0 2 1 0 0 N/A 7 35 50 25 25 0 0 0 100 90 10 0 0 0 0 100 0 0 None 0 0 1 1 98 0 0 0 0 0 100 1 0 0 1 0 0 0 0 0 2 15 0 0 15 0 0 0 0 0 30 10 1.7 0 5C550100001 Groveland CS, , Groveland, CA 95321 SSS same agency N N/A 6 1 0 N Y Other (specify below) No Spills in 2024 Other (specify below) No failures in 2024 None None 2023 6SSO11109 6A 616 12-APR-24 Other 68 0 2 0 1 0 0 0 0 0 0 NA 0 1.1 7 93 0 0 0 0 0 100 0 0 0 0 0 0 72 0 None 1.2 0 0 0 95 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 .2 0 6SSO11109 Markleeville Wstwtr Trtmnt Sys CS, P.O. Box 222 , Markleeville, CA 96120 SSS same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 NA 1 1 0 N Y Other (specify below) NA Other (specify below) Millberry Creek crossing gravity pipe failure currently being bypassed see attachment see attachment 2023 6SSO11110 6A 616 29-MAR-24 Municipal(Public) 5008 1 15 1 1 4 11 1 0 0 0 NA 7 75 86 7 6 1 0 0 100 25 0 25 50 0 0 100 4746 4746 Lower only 23 0 3 2 80 10 0 0 0 5 100 2 3 0 2 0 0 0 0 0 7 5 0 0 8 0 0 0 0 0 13 2 14 12 6SSO11118 Tahoe City Public Utility Dist CS, P.O. Box 5249 , Tahoe City, CA 96145 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spills in 2023 Other (specify below) No infrastructure failures in 2023 No ongoing investigations in 2023 CCTV & Hydro Flushing of gravity mains and lower laterals, lift station rehabs and 5 lift station complete rehabs. 2024 6SSO11110 6A 616 25-MAR-25 Municipal(Public) 5100 2 11 2 1 4 11 1 0 0 0 NA 7 75 86 7 6 1 0 0 100 25 0 25 50 0 0 100 4750 4750 Lower only 23.2 0 3 2 80 10 0 0 0 5 100 2 3 0 2 0 0 0 0 0 7 5 0 0 8 0 0 0 0 0 13 2 9.5 1.5 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N N NA 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance The Carnelinan main station 20-inch diameter sewer forcemain was damaged by a CalTrans contractor performing excavation activities that resulted in a Category 1 spill of roughly 123,000 gallons. Other (specify below) No infrastructure failures in 2024 CIWQS Spill Id #895774 is going through Settlement under the direction of the State Water Resources Control Board CCTV and Hydro Flushing of gravity mains and lower laterals, 8 lift stations are in line to be rehabbed. 3 of the 8 are in design now and expected to be rehabbed in 2026. The other 5 will follow in 2027 and 2028. We are conducting a study on our force mains in the next year. 2025 6SSO11110 6A 616 31-MAR-26 Municipal(Public) 5100 2 15 2 1 5 14 1 0 0 0 7 75 86 7 6 1 0 0 100 25 0 25 50 0 0 100 4750 4750 Lower only 23 0 3 2 80 10 0 0 0 5 100 2 3 0 2 0 0 0 0 0 7 5 0 0 8 0 0 0 0 0 13 2 6.5 1.8 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spills in 2025 Lower Lateral N/A Budgeted and completed 12 CIPP lining in laterals identified with issues. CCTV and hydro flush annual work order for laterals to help identify any issues. 2024 1SSO10074 1 616 17-MAR-25 Municipal(Public) 16500 3 4 1 1 1 0 0 0 0 0 0 0 44 80 10 10 0 0 0 100 0 0 0 0 0 0 0 3925 0 None 0 0 0 0 0 40 30 30 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 44 18 1B84029OMEN City of Ukiah CS 300 Plant Rd, Ukiah Ca 95482 WWTP same agency Y Y Ukiah Valley Sanitation District 1B84029OMEN 0 18 2 0 N Y Root Intrusion 0 Upper Lateral 0 0 Spot repair areas with root pultrusion 2025 1SSO10074 1 616 04-MAR-26 Municipal(Public) 16500 3 4 1 1 1 0 0 0 0 0 0 0 44 80 10 10 0 0 0 100 0 0 0 0 0 0 3925 0 None 0 0 0 0 0 40 30 30 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 44 27 1B84029OMEN City of Ukiah CS 300 Plant Rd, Ukiah Ca 95482 WWTP same agency Y Y Ukiah Valley Sanitation District 1B84029OMEN 0 18 2 0 N Y Root Intrusion 0 Upper Lateral 0 0 Spot repair areas with root pultrusion 2023 5SSO10964 5S 616 17-DEC-25 Municipal(Public) 100 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 84 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 .2 0 0 5SSO10964 Hammonton Gold Village Waste Water Treatment Plant WWTP same agency N N 0 0 0 0 Y Pump Station Failure - Mechanical Pump Station - Mechanical none N/A 2024 5SSO10964 5S 616 29-DEC-25 Municipal(Public) 100 0 0 0 0 0 0 0 0 0 0 .5 .8 44 56 0 0 0 0 100 0 0 0 0 0 0 0 84 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5A581007001 Hammonton Gold Village Waste Water Treatment Plant WWTP same agency N 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A n/a n/a 2025 5SSO10964 5S 616 27-MAR-26 Municipal(Public) 100 0 0 0 0 0 0 0 0 0 0 .5 .8 44 56 0 0 0 0 100 0 0 0 0 0 0 0 84 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5SSO10964 Hammonton Gold Village Waste Water Treatment Plant WWTP same agency N 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 6SSO11111 6A 616 19-MAR-26 Municipal(Public) 3165 1 9 3 1 0 2 0 0 0 0 N/A 7.3 24 73 20 7 0 0 0 100 8 46 46 0 0 0 100 1085 6 Lower only 6.1 0 21 14 65 0 0 0 0 0 100 0 33 0 67 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.9 2.9 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N Not Applicable 5 4 2 N Y Root Intrusion Zero SSOs in the reporting period. Manhole Our last SSO, several years ago, was due to root intrusion in a manhole. None Routine Maintenance 2023 5SSO10965 5S 616 27-MAR-24 Municipal(Public) 10869 4 9 1 1 1 2 0 0 0 0 0 1 53 71 12 10 6 0 0 99 1 0 0 0 0 0 1 3241 0 None 0 0 15 15 40 25 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 17 3 5A090100001 001, , Placerville, CA WWTP same agency N N 3 0 2 N Y Debris-General Gravity Mainline none all failure points repaired ASAP 2024 5SSO10965 5S 616 25-MAR-25 Municipal(Public) 10869 4 9 1 1 1 2 0 0 0 0 1 53 71 12 10 6 0 0 99 1 0 0 0 0 0 1 3241 0 None 0 0 15 15 40 25 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 17.2 3.4 5A090100001 001, , Placerville, CA WWTP same agency N N 0 0 0 3 0 2 Y Y Debris-General 0 Gravity Mainline 0 none failure points repaired asap 2025 5SSO10965 5S 616 18-MAR-26 Municipal(Public) 10869 4 9 1 1 1 2 0 0 0 0 1 53 71 12 10 6 0 0 99 1 0 0 0 0 0 1 3241 0 None 0 0 15 15 40 25 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 17.2 3.4 5A090100001 2300 coolwater creek , Placerville, CA 95667 WWTP same agency N N 3 0 2 Y Y Debris-General Gravity Mainline none failure points repaired asap 2023 2SSO10105 2 616 21-MAR-24 Municipal(Public) 352183 7 47 8 1 16 20 5 6 0 3 N/A 25 1516 15 68 11 4 2 0 100 7 5 37 51 0 0 100 155660 8 None 1 16 27 38 19 0 0 0 0 0 100 5 2 0 0 0 0 0 0 0 7 7 2 2 0 0 0 0 0 0 11 0 747 191 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 SSS same agency Y N City of Concord 2SSO10109 N/A 204 4 26 Y Y Root Intrusion (Un)Flushable wipes. Contractor error. Gravity Mainline Manhole, All 2023 spill investigations have been completed. Spot repairs made, Cleaning frequencies adjusted, Sewer mains added to capital projects, Bi-Monthly coordination meeting held between Collection System staff and Engineering staff to discuss large repairs and line replacements. 2024 2SSO10105 2 616 01-AUG-25 Municipal(Public) 484000 7 47 8 1 16 20 5 6 0 3 Collections: Grade I: 14 Grade II: 24 Grade III: 6 Grade IV: 6 Mechanical Tech: Grade I: 1 25 1516 15 68 11 4 163355 0 100 7 5 37 51 0 0 100 155660 5 Upper and Lower 1 16 27 38 19 0 0 0 0 0 100 5 2 0 0 0 0 0 0 0 7 7 2 2 0 0 0 0 0 0 11 0 748 133 2 071008001 CCCSD Discharge Point 001, 5019 Imhoff Place , Martinez, CA WWTP same agency Y N City of Concord 2SSO10109 N/A 204 4 26 Y Y Root Intrusion Unflushable wipes and F.O.G. Gravity Mainline There are no ongoing spill investigations at this time. Spot repairs made, Cleaning frequencies adjusted, Monthly engineering coordination meeting held to discuss lines to be added to projects, all spill investigations are complete. 2025 2SSO10105 2 616 03-FEB-26 Municipal(Public) 500000 7 47 8 1 16 20 5 6 0 3 Collections: I: 16 II: 20 III: 6 IV: 6 Mechanical Tech: I: 1 25 1519 15 68 11 4 2 0 100 7 5 37 51 0 0 100 155660 5 Upper and Lower 1 16 27 38 19 0 0 0 0 0 100 5 2 0 0 0 0 0 0 0 7 7 2 2 0 0 0 0 0 0 11 0 791.7 121 2 071008001 CCCSD Discharge Point 001, 5019 Imhoff Place , Martinez, CA WWTP same agency Y N City of Concord 2SSO10109 N/A 204 4 26 Y Y Root Intrusion Wipes, F.O.G. Gravity Mainline Roots in manholes No current ongoing investigations. Increased cleaning frequencies. Spot repairs made. Line replacements completed. Changed type of cleaning (Rodding/Hydro) 2023 6SSO11112 6A 616 25-MAR-24 Military 1200 0 2 0 0 0 0 0 0 0 0 Sierra Army Depot sewers are settling lagoons. We are exempt number EX-0007. 0 8 12 42 23 0 0 23 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 6A180020000 Sierra Army Depot Sewage Treatment Plant, Sierra Army Depot , Herlong, CA WWTP same agency N 0 0 0 N Y Root Intrusion N/A Gravity Mainline N/A There are no ongoing spill investigations. See Attachment. 2023 6SSO11113 6A 616 02-APR-24 Municipal(Public) 29013 7 11 2 2 4 3 4 0 0 0 N/A 19 311 69 11 10 1 0 6 100 29 4 59 0 0 6 100 18436 0 None 0 1 7 4 83 9 0 0 0 5 0 0 1 2 5 1 0 0 0 0 0 0 1 6 20 0 0 0 0 0 0 21 237 13 6SSO11113 1275 Meadow Crest DR, South Lake Tahoe, Ca., CA 96150 WWTP same agency N N N/A 89 28 3 N Y Other (specify below) Roots and Rags Other (specify below) Minor Spills in Gravity Main CCTV, RootX, Enhanced Cleaning Capital improvement projects/Sags/Spot repairs 2025 6SSO11113 6A 616 27-MAR-26 Municipal(Public) 37592 1 18 3 2 5 9 4 0 0 0 N/A 19 311 69 11 10 1 0 6 100 29 4 59 0 0 6 100 18450 0 None 0 1 7 4 83 9 0 0 0 0 0 0 1 2 5 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 240 8.6 6SSO11113 1275 Meadow Crest Dr South Lake Tahoe Ca WWTP same agency N N N/A 89 28 3 N Y Other (specify below) Rags Manhole CCTV, RootX Enhanced Cleaning, Hydro Cleaning Capital Improvement projects 2023 5SSO10967 5S 616 18-MAR-24 Municipal(Public) 6235 3 4 1 1 0 0 0 0 0 3 SWRCB Wastewater certifications: Grade 3 (3 employees), Grade 2 (1 employee), OIT (3 employees). 3 21 53 18 16 0 0 0 87 5 0 8 0 0 0 13 1506 1506 Lower only 2 0 0 13 0 0 0 0 0 0 13 0 0 2 0 0 0 0 0 0 2 0 0 5 0 0 0 0 0 0 5 0 0 1 5SSO10967 Hidden Valley Lake CS, 19400 Hartman Road, Middletown, CA 95461 WWTP same agency N NA 1 1 0 Y Y Other (specify below) Equipment interference in manhole. Gravity Mainline NA None NA 2024 5SSO10967 5S 616 28-OCT-25 Municipal(Public) 6235 2 5 1 0 0 0 0 0 0 4 SWRCB Wastewater certifications: Grade 3 (1 employees), Grade 2 (3 employee), OIT (3 employees). 3 21 53 18 16 0 0 0 87 5 0 8 0 0 0 13 1506 1506 Lower only 2 0 0 13 0 0 0 0 0 0 13 0 0 2 0 0 0 0 0 0 2 0 0 5 0 0 0 0 0 0 5 0 0 .2 5A171034001 Hidden Valley Lake WRF, 18896 Grange Road, Middletown, CA 95467 WWTP same agency N NA 1 1 0 Y Y Other (specify below) NA Gravity Mainline NA None NA 2025 5SSO10967 5S 616 16-MAR-26 Municipal(Public) 6235 0 6 1 0 0 0 0 0 0 4 SWRCB Wastewater certifications: Grade 3(1 employee), Grade 2 (3 employees), Grade 1 ( 1 employee) OIT (1 employee). 3 21 53 18 16 0 0 0 87 5 0 8 0 0 0 13 1506 1506 Lower only 2 0 0 13 0 0 0 0 0 0 13 0 0 2 0 0 0 0 0 0 2 0 0 5 0 0 0 0 0 0 5 0 0 .2 5A171034001 Hidden Valley Lake WRF, 18896 Grange Road, Middletown, CA 95461 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 1 0 Y Y Other (specify below) NA Gravity Mainline NA None NA 2023 5SSO10968 5S 616 15-APR-24 Municipal(Public) 7734 4 4 1 1 0 0 0 0 0 0 2 23 26 43 21 10 0 0 100 0 16 0 84 0 0 100 2083 3 None 0 46 24 7 4 0 19 0 0 0 100 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 15 3 5ss010968 WWTP same agency N 0 0 0 N Y Debris-General Force Main none Engerineering design in process to increase capacity on force main at tully rd 2024 5SSO10968 5S 616 24-MAR-26 Municipal(Public) 8107 5 2 2 1 0 0 0 0 0 0 2 23 26 43 21 10 0 0 100 0 16 0 84 0 0 100 2447 3 None 0 46 24 7 4 0 19 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 14 5 5ss010968 WWTP same agency N 1 0 0 N Y Debris-General none Force Main none none engineering design in process to increase capacity on force main at tully rd 2025 5SSO10968 5S 616 24-MAR-26 Municipal(Public) 8107 5 2 2 1 0 0 0 0 0 0 2 23 26 43 21 10 0 0 100 0 16 0 84 0 0 100 2447 3 None 0 46 24 7 4 0 19 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 14 5 5ss010968 WWTP same agency N 1 0 0 N Y Debris-General none Force Main none none engineering design in process to increase capacity on force main at rd 2023 5SSO10969 5S 616 22-MAR-24 Municipal(Public) 50 1 2 2 2 4 2 1 2 0 0 All Collections System workers are also required to have Distribution certificates as well. 19 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 40 20 Lower only 4 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 5SSO10969 Indian Rock Vineyards CS, , San Andreas, CA 95249 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Power STEP System, no failures to date. however, if there were, they would be the result of a septic tank pump's power fail and the customer not having a backup generator Pump Station - Power N/A N/A New Orenco Treatment System installed in 2020. Detailed pumping and examination of septic tanks every 5 years 2024 5SSO10969 5S 616 22-DEC-25 Municipal(Public) 50 2 1 1 2 2 1 0 1 0 0 All collections staff are also certified in Distribution 19 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 40 20 Lower only 4 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 5B051003002 Indian Rock Vineyards Subdivision (IRVS) WWTF, 1002 Pennsylvania Gulch Road, Murphys, CA 95247 WWTP same agency N n/A 0 0 0 Y Pump Station Failure - Power STEP system no major failures to date. If spill did happen it would be due to septic tank pump failure or power issue. Alarm floats are in place to deal with any such problems. Pump Station - Power N/A N/A New Orenco treatment system installed in 2020. Septic tanks and system are on a 5-year pumping and maintenance schedule. 2025 5SSO10969 5S 616 23-MAR-26 Municipal(Public) 50 1 3 1 2 2 1 0 1 0 5 All collections staff are also certified in Distribution 19 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 40 20 Lower only 4 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 5B051003002 Indian Rock Vineyards Subdivision (IRVS) WWTF, Pennsylvania Gulch , Murphys, CA 95247 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Pump Station Failure - Power STEP system no major failures to date. If spill did happen it would be due to septic tank pump failure or power issue. Alarm floats are in place to deal with any such problems. Pump Station - Power N/A N/A New Orenco treatment system installed in 2020. Septic tanks and system are on a 5-year pumping and maintenance schedule. 2023 5SSO10970 5S 616 01-APR-24 Municipal(Public) 45700 2 6 1 1 2 4 2 2 0 0 N/A 19 140 14 63 19 2 2 0 100 34 20 46 0 0 0 100 18316 1 None 0 10 15 40 15 20 0 0 0 0 100 2 4 4 2 0 0 0 0 0 12 0 2 2 14 0 0 0 0 0 18 0 4 4 5SSO10970 Ironhouse Sanitary District 450 Walnut Meadows Dr. Oakley CA, 94561 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 2 2 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Manhole NA NA Currently working with a contractor to complete a $600,000.00 grouting project on Bethel Island, CA 94511 2024 5SSO10970 5S 616 03-NOV-25 Municipal(Public) 49238 2 6 1 1 2 2 3 3 0 0 19 140 14 69 15 2 0 0 100 34 23 43 0 0 0 100 18316 1 None .5 10 15 40 15 20 0 0 0 0 100 2 4 4 2 0 0 0 0 0 12 0 2 2 14 0 0 0 0 0 18 0 22.3 19.6 5B070105005 Ironhouse Sanitary District 450 Walnut Meadows Dr. Oakley CA, 94561 WWTP same agency N 2 2 1 Y Y Pipe Structural Problem/Failure - Installation Force Main The investigation and repair is completed. An 18 forcemain failed prematurely due to H2S corrosion. We replaced approximately 50' of failed or failing forcemain piping. Additionally, we are getting ready to bid a redundant forcemain adjacent to the existing piping. 2025 5SSO10970 5S 616 30-MAR-26 Municipal(Public) 50222 0 8 1 1 1 3 3 3 0 0 19.1 143.8 14 69 15 2 0 0 100 34 23 43 0 0 0 100 15680 1 None .5 10 15 40 15 20 0 0 0 0 100 2 4 4 2 0 0 0 0 0 12 1 2 2 14 0 0 0 0 0 19 0 42.2 47.9 5B070105005 Ironhouse WWTF, 450 Walnut Meadows Drive, Oakley, CA 94561 WWTP same agency N 2 2 1 Y Y Vandalism (specify below) A block of 4x4 post approximately 12 inches long was put into the collection system creating a blockage of flow causing an SSS at a private lift-station at a lower elevation. Other (specify below) Our Sanitary Sewer Spill was caused by illegal discharge or vandalism. Our infrastructure didn't fail creating a spill. Staff are looking into manholes that are high risk for vandalism and scheduling the installation of locking manhole covers. Installing locking manhole covers in areas where trash and construction debris can be dumped into the collection system. 2023 2SSO10095 2 616 17-MAR-26 Municipal(Public) 28174 5 19 3 1 10 3 2 0 0 0 5 148 38 43 14 5 0 0 100 40 0 60 0 0 0 100 9300 0 None 0 2 2 48 32 10 1 2 1 2 100 0 0 5 0 2 0 0 0 0 7 0 0 12 3 1 0 0 0 0 16 0 20 11 2SSO10095 Benicia City CS, 614 East 5th St Street, Benicia, CA 94510 WWTP same agency N n/a 3 1 0 Y Y Root Intrusion n/a Gravity Mainline n/a n/a Continue cleaning, CCTV, and assessing system. Make repairs and upgrades as necessary. 2024 2SSO10095 2 616 22-OCT-25 Municipal(Public) 26477 2 18 3 2 7 7 2 0 0 0 N/A 5 148 38 43 14 5 0 0 100 40 0 60 0 0 0 100 9300 0 None 0 2 2 48 32 10 1 2 1 2 100 0 0 5 0 2 0 0 0 0 7 0 0 12 3 1 0 0 0 0 16 0 15 10 2SSO10095 Benicia CS, 614 East 5th St, Benicia, CA 94510 WWTP same agency N N/A 3 1 0 Y Root Intrusion Gravity Mainline N/A N/A Continue performing maintenance, to include cleaning and CCTV of system. Repair or upgrade as needed. 2025 2SSO10095 2 616 19-MAR-26 Municipal(Public) 28000 3 22 4 4 7 9 2 0 0 0 California Water Environmental Association State water Resources Control Board 5 148 38 43 14 5 0 0 100 40 0 60 0 0 0 100 9300 0 None 0 2 2 48 32 10 1 2 1 2 100 0 0 5 0 2 0 0 0 0 7 0 0 12 3 1 0 0 0 0 16 0 14 7.5 2SSO10095 Benicia City CS, 614 east 5th Street, Benicia, CCA 94510 WWTP same agency N N/A 3 1 0 Y Y Other (specify below) Root Intrusion Pipe Structural Problem/Failure Other (specify below) Gravity Mainline Force Main N/A Cleaning and CCTV. Make repairs as needed. Make upgrades as needed. 2023 1SSO10078 1 616 07-FEB-24 Municipal(Public) 3000 0 2 0 1 0 0 0 0 0 3 N/A 1 26 95 2 3 0 0 0 100 100 0 0 0 0 0 100 1300 1300 Lower only 10 0 5 25 20 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 2 1A840720 Weaverville Sanitary District 630 Mountain View Street WWTP same agency N N/A 1 0 1 N N Other (specify below) Haven't had a major spill in many years Lower Lateral N/A none constant maintenance 2024 1SSO10078 1 616 04-NOV-25 Municipal(Public) 3000 0 2 0 1 0 0 0 0 0 3 N/A 1 26 95 2 3 0 0 0 100 100 0 0 0 0 0 100 1300 1300 Lower only 10 0 5 25 20 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 4 3 1A840720TRI Weaverville Sanitary District 630 Mountain View Street WWTP same agency N N/A 8 0 1 N N Root Intrusion Gravity Mainline None We have assessed most of the system over 60 years old and have lined 4 miles of sewer mains in the past 3 years 2025 1SSO10078 1 616 13-MAR-26 Municipal(Public) 3000 0 2 0 1 0 0 0 0 0 3 N/A 1 26 95 2 3 0 0 0 100 100 0 0 0 0 0 100 1300 1300 Lower only 10 0 5 25 20 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 .1 1A840720TRI Weaverville Sanitary District 630 Mountain View Street WWTP same agency N N/A 8 0 1 N N Other (specify below) Didn't have any major spills in 2025 Gravity Mainline N/A Infiltration study underway 2023 1SSO10079 1 616 19-MAR-24 Municipal(Public) 2831 1 6 1 1 0 1 0 0 0 0 N/A 2 22 70 10 20 0 0 0 0 0 0 100 0 0 0 0 1970 3 None 0 0 15 35 30 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 1 1SSO10079 Weed Shastina CS Weed, CA 96094 WWTP same agency N N/A 1 2 0 Y Y Root Intrusion N/A Gravity Mainline N/A None Applying for grants to upgrade sewer system. 2025 1SSO10079 1 616 16-MAR-26 Municipal(Public) 2860 0 7 1 1 0 1 0 0 0 0 N/A 2.3 23 70 10 20 0 0 0 100 0 0 100 0 0 0 100 1970 3 None .3 0 15 35 30 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 32 32 1SSO10079 City of Weed Alamo Dr Weed, CA WWTP same agency N N/A 1 2 0 N Y Other (specify below) The City of Weed didn't have any major spills in 2025 Other (specify below) The City of Weed did't have any infrastructure failure points in 2025 There is currently no ongoing spill investigations There were no deficiencies in 2025 2023 2SSO10109 2 616 22-MAR-24 Municipal(Public) 129783 4 5 2 1 4 2 4 1 0 0 CWEA 0 345 46 24 13 4 3 10 100 0 0 0 0 0 0 0 42118 120 Lower only 344 7 0 29 25 31 5 3 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 181 31 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N 3 0 0 Y Y Root Intrusion Gravity Mainline N/A Root foaming and replacement of clay pipe with plastic. 2024 2SSO10109 2 616 22-JUL-25 Municipal(Public) 129783 3 10 1 1 6 5 3 1 0 0 CWEA 0 345 46 24 13 4 3 10 100 0 0 0 0 0 0 0 42118 120 Lower only 344 7 0 29 25 31 5 3 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 308.8 7.6 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N 3 0 0 Y Y Root Intrusion Gravity Mainline n/A Root foaming and replacement of clay pipe with plastic. 2025 2SSO10109 2 616 02-APR-26 Municipal(Public) 129783 0 10 1 1 5 6 3 1 0 0 CWEA 0 345 46 24 13 4 3 10 100 0 0 0 0 0 0 0 42118 120 Lower only 344 7 0 29 25 31 5 3 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 181 31 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N N 3 0 0 Y Y Root Intrusion Gravity Mainline N/A Root foaming and replacement of clay pipe with plastic. 2023 6SSO11114 6A 616 26-MAR-24 Municipal(Public) 1165 1 2 1 2 1 2 1 2 0 5 0 22 65 14 20 0 0 0 100 0 0 0 0 0 0 0 687 626 Lower only 4 1 10 22 65 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 11 1 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency N 4 0 2 Y Y Debris-wipes/Non-disposables Lower Lateral none none 2024 6SSO11114 6A 616 26-MAR-25 Municipal(Public) 1165 0 4 1 1 1 2 1 1 0 4 0 22 65 14 20 0 0 0 100 0 0 0 0 0 0 0 687 626 Lower only 4 1 10 22 65 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 11 1 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency N 4 0 2 Y Y Debris-wipes/Non-disposables Lower Lateral none Preparing Sewer System Master Plan including capital improvement plan. Initiating Sewer system rehabilitation and replacement projects. 2025 6SSO11114 6A 616 03-MAR-26 Municipal(Public) 1165 1 3 1 1 1 1 2 1 0 3 0 22 66 14 20 0 0 0 100 0 0 0 0 0 0 0 687 626 Lower only 4 1 10 22 65 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 11 0 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency N 6 0 2 Y Y Debris-wipes/Non-disposables Lower Lateral none Recently, a current sewer infrastructure master plan has been developed to implement system improvements. The first project has been developed and hopefully will go out to bid for summer 2026. 2023 5SSO10974 5S 616 30-DEC-25 Municipal(Public) 2089 3 4 1 4 0 0 0 0 0 7 12 12 61 35 0 0 0 4 100 85 10 0 0 0 5 100 935 935 Lower only 2 0 0 18 78 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 1 5 1 5A170101001 Kelseyville Co Water Works District, , Kelseyville, CA WWTP same agency N 5 4 0 N Y Root Intrusion Manhole No ongoing investigations at this time Work plan to clean and inspect more mainlines and grease traps 2024 5SSO10974 5S 616 30-DEC-25 Municipal(Public) 2089 1 5 1 4 0 0 0 0 0 7 N/A 12 12 61 35 0 0 0 4 100 85 10 0 0 0 5 0 935 935 Lower only 2 0 0 18 78 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 1 5 1 5SSO10974 Kelseyville County Water Works District #3 and AD9-2 CS, 230 Main Street Lakeport, CA 95453 WWTP same agency N 5 4 0 N Y Root Intrusion Manhole No ongoing investigations at this time. Continuing to clean and inspect mainlines and manholes. 2025 5SSO10974 5S 616 16-MAR-26 Municipal(Public) 2089 2 5 1 4 0 0 1 0 0 5 N/A 12 12 61 35 0 0 0 4 100 85 10 0 0 0 5 100 935 935 Lower only 2 0 0 20 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 1 7 0 5SSO10974 Kelseyville County Water Works District #3 and AD9-2 CS, 230 Main Street Lakeport, CA 95453 WWTP same agency N 5 4 0 Y Y Root Intrusion Manhole No ongoing investigations at this time. Continuing to clean, inspect and CCTV mainlines and manholes. 2023 6SSO11115 6A 616 17-DEC-25 Municipal(Public) 100 0 1 0 1 0 0 0 0 0 0 None 2 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 202 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 .3 0 0 6SSO11115 Stones-Bengard Commubity Service District 509-695 Stone Rd Susanville CA 96130 WWTP same agency N N None None N None None N None None N None None N None None None 0 0 0 N N Damage by Others Not Related to Collection System Construction/Maintenance None Pump Station - Controls None None None 2024 6SSO11115 6A 616 13-JAN-26 Municipal(Public) 100 0 0 1 1 0 0 0 0 0 0 NA 2 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 204 0 None 0 2 98 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 .3 0 0 6A188812008 Stones-Bengard Sewage Treatment Ponds, Stones Subdivision , Susanville, CA 96130 WWTP same agency N N NA NA NA 0 0 0 N N Damage by Others Not Related to Collection System Construction/Maintenance NA Pump Station - Controls NA NA NA 2025 6SSO11115 6A 616 09-MAR-26 Municipal(Public) 100 0 0 1 1 0 0 0 0 0 0 None 2 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 204 0 None 0 2 98 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 .3 0 0 6SSO11115 Stones-Bengard Community Service District 509-695 Stone Rd Susanville CA 96130 WWTP same agency N N None None None 0 0 0 N N Damage by Others Not Related to Collection System Construction/Maintenance None Pump Station - Controls None None None 2023 2SSO10110 2 616 28-MAR-24 Municipal(Public) 31959 1 3 1 1 2 0 1 2 0 0 4 staff members completed - Maintenance Superintendents Association Public Works Specialist Certification Program - one staff member in progress. 3 staff hold CA DPR QAC with root control category. 1 138 76 10 8 5 1 0 100 100 0 0 0 0 0 100 10510 10 None 1 1 1 8 75 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 4 0 96 23 2SSO10164 City of Palo Alto 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency Y N City of Mountain View 2SSO10111 N Town of Los Altos Hills 2SSO10149 NA 35 0 0 Y Y Root Intrusion NA Gravity Mainline NA 1232 Golden Way, 937 Loraine Ave, Camelia Way CCTV, Repair known issues, add to hot spot lists until repairs completed. 2024 2SSO10110 2 616 23-DEC-25 Municipal(Public) 31625 4 1 1 1 1 2 0 2 0 1 3 staff members completed Maintenance Superintendents Association Public Works Specialist Certification program. 3 staff members in process of completing. 1 staff member holds CA DPR QAC with N category for non-soil fumigation (sewer line root foam treatment). 2 staff members in process of completing. 1 Employee with NASSCO certification 1 138 76 10 8 5 1 0 100 100 0 0 0 0 0 100 10510 10 None 1 1 1 8 75 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 4 0 78.5 1.7 2SSO10164 City of Palo Alto 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency Y N City of Mountain View 2SSO10111 N Town of Los Altos Hills 2SSO10149 NA 35 1 0 Y Y Root Intrusion Gravity Mainline NA CCTV, Repair known issues, add known problem segments to high frequency maintenance lists (30s, 60s, 90s, 6-month, annual root cutting, annual creek crossing segments) 2025 2SSO10110 2 616 22-JAN-26 Municipal(Public) 31625 3 1 1 1 1 2 0 2 0 1 3 staff members completed Maintenance Superintendents Association Public Works Specialist Certification program. 3 staff members in process of completing. 1 staff member holds CA DPR QAC with N category for non-soil fumigation (sewer line root foam treatment). 2 staff members in process of completing. 1 Employee with NASSCO certification 1 138 76 10 8 5 1 0 100 100 0 0 0 0 0 100 10510 10 None 1 1 1 8 75 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 4 0 133.5 .6 2SSO10164 City of Palo Alto 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency Y N City of Mountain View 2SSO10111 N Town of Los Altos Hills 2SSO10149 NA 35 1 0 Y Y Root Intrusion Gravity Mainline NA CCTV, repair know issues, add known problem segments to high frequency maintenance lists (30s, 60s, 90s, annual root cutting, annual creek crossing segments) 2023 5SSO10975 5S 616 28-MAR-24 Municipal(Public) 8000 0 1 1 0 1 0 0 0 0 0 None. 2 8 45 55 0 0 0 0 100 100 0 0 0 0 0 100 394 3 Upper and Lower 8 0 20 30 50 0 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 1 0 1 1 5SSO10975 KMPUD 40 Loop Road Kirkwood, CA 95646 WWTP same agency N N None. 1 1 0 Y Y Natural Disaster (specify below) Floods in both 2017 and 2018. Pump Station - Mechanical Rags in impeller. None. None. 2024 5SSO10975 5S 616 23-DEC-25 Municipal(Public) 8000 3 1 1 1 1 1 1 0 0 0 2 8 45 55 0 0 0 0 100 100 0 0 0 0 0 100 394 3 Upper and Lower 8 0 20 30 50 0 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 1 0 1 1 5B020101002 Kirkwood Meadows WWTF, 33540 Loop Road, Kirkwood, CA 95646 WWTP same agency N 1 1 0 Y Y Natural Disaster (specify below) FLOODING AFTER LARGE SNOW MELT Pump Station - Mechanical NONE NONE 2025 5SSO10975 5S 616 24-MAR-26 Municipal(Public) 8000 5 0 1 1 1 0 0 0 0 0 .6 8 45 55 0 0 0 0 100 100 0 0 0 0 0 100 396 3 Lower only 1.9 1 20 30 49 0 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 1 0 1 .5 5B020101002 Kirkwood Meadows WWTF, 33540 Loop Road, Kirkwood, CA 95646 WWTP same agency N 1 1 0 Y Y Natural Disaster (specify below) 2018 Collection System overflow due to extreme storm event which overwhelmed influent pump station. Pump Station - Mechanical 2018 Collection System overflow due to extreme storm event which overwhelmed influent pump station. none inspections, regular maintenance 2023 6SSO11117 6A 616 19-DEC-25 Municipal(Public) 9900 2 3 1 1 0 1 0 0 0 0 n/a 1 40 76 14 10 0 0 0 100 100 0 0 0 0 0 100 3724 214 Lower only 1 0 10 20 0 0 0 0 0 70 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6 7 0 10 1 6A181554001 Susanville DP 001, , CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 12 1 1 N Y Root Intrusion N/A Gravity Mainline N/A NO CCTV and repair as needed 2024 6SSO11117 6A 616 19-DEC-25 Municipal(Public) 9900 2 3 1 1 0 1 0 0 0 0 N/A 1 40 76 14 10 0 0 0 100 100 0 0 0 0 0 100 3724 219 Lower only 1 0 10 20 0 0 0 0 0 70 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6 7 0 10 1 6A181554001 Susanville DP 001,Susanville Sanitary District 476-200 Paul Bunyan Rd. Susanville, CA  96130 , CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A n/a 12 1 1 N Y Root Intrusion n/a Gravity Mainline n/a no cctv and repair as needed 2025 6SSO11117 6A 616 02-APR-26 Municipal(Public) 9900 1 3 1 1 0 1 0 0 0 0 n/a 1 40 76 14 10 0 0 0 100 100 0 0 0 0 0 100 3724 219 Lower only 1 0 10 20 0 0 0 0 0 70 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6 7 0 8 1 6SSO11117 SSD WWTP 476-200 Bunyan Rd. 96130 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A n/a 12 1 1 Y Y Root Intrusion n/a Gravity Mainline n/a no on going cctv and repair as needed 2023 2SSO10111 2 616 29-MAR-24 Municipal(Public) 83601 1 10 2 2 13 2 4 2 0 0 NA 0 157 15 57 21 5 1 1 100 0 0 0 0 0 0 0 17373 0 None 0 1 11 5 7 1 0 0 0 75 100 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 183 18 NA Palo Alto Regional Water Pollution Control Plant PARWPCP 2501 Embarcadero Way Palo Alto CA 94303 WWTP same agency 2SSO10110 Los Altos City CS, 1 North San Antonio Road, Los Altos, CA 94022 WWTP other agency N N City of Palo Alto 2SSO10164 N City of Los Altos 2SSO10110 N NASA (Moffett Field) NA NA 25 0 5 Y Y Other (specify below) Non-Flushable Wipes / FOG / Debris Gravity Mainline NA Currently no ongoing spill investigations. Continuing to assess and repair/replace sewer mains with defects identified through CCTV inspection and/or routine maintenance. 2024 2SSO10111 2 616 01-APR-25 Municipal(Public) 86535 0 9 2 2 1 7 2 3 0 0 NA 0 156 15 57 21 5 1 1 100 0 0 0 0 0 0 0 17152 0 None 0 1 11 4 8 1 0 0 0 75 100 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 203.1 18.6 2 438011001 Palo Alto Regional Water Quality Control Plant WWTP other agency Y N City of Palo Alto 2sso10164 N City of Los Altos 2sso10110 N NASA (Moffett Field) NA NA 25 0 5 Y Y Other (specify below) Non-flushable wipes and FOG Gravity Mainline NA Currently no ongoing spill investigations. Continuing to assess and repair/replace sewer mains with defects identified through ongoing CCTV inspections and/or routine maintenance. 2025 2SSO10111 2 616 30-MAR-26 Municipal(Public) 86513 0 9 2 2 3 6 2 2 0 0 n/a 0 157 15 57 21 5 1 1 100 0 0 0 0 0 0 0 17535 0 None 0 1 11 4 7 1 0 0 0 76 100 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 181.1 18.7 2 438011001 Palo Alto Regional Water Quality Control Plant WWTP other agency Y N City of Palo Alto 2sso10164 N City of Los Altos 2sso10110 N NASA (Moffett Field) n/a n/a 25 0 5 Y Y Other (specify below) While no major spills occurred during the reporting period, non-flushable wipes and FOG tend to be the causes for backups/spills within the system. Gravity Mainline n/a Currently no ongoing spill investigations. Continuing to assess and repair/replace sewer mains with defects identified through ongoing CCTV inspections and/or routine maintenance. 2023 6SSO11118 6A 616 04-APR-24 Municipal(Public) 7725 4 10 1 3 4 4 3 4 0 0 N/A 6 123 77 10 5 0 0 8 100 57 4 32 4 0 3 100 7500 3000 Lower only 110 0 2 5 91 2 0 0 0 0 100 0 1 0 6 0 0 0 0 0 7 0 0 0 14 0 0 0 0 0 14 30 62 47 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency Y N North Tahoe PUD 6SSSO11110 N/A 15 6 3 N Y Root Intrusion N/A Lower Lateral N/A N/A INSTALLATION OF EMERGENCY BYPASS PORTS. INSTALLED LINER IN 859' OF 6 SEWER MAIN ON 6TH ST IN TAHOMA. MULTIPLE SPOT REPAIRS THROUGHOUT THE SYSTEM. 2024 6SSO11118 6A 616 13-MAR-25 Municipal(Public) 7756 4 10 1 2 4 4 3 4 0 0 N/A 6 123 72 10 7 5 0 6 100 63 3 26 6 0 2 100 7756 3000 Lower only 110 1 2 5 90 2 0 0 0 0 100 0 1 0 6 0 0 0 0 0 7 0 0 0 14 0 0 0 0 0 14 30 59 29 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency Y N North Tahoe PUD 6SS011110 N/A 15 6 3 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Pipe structural failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) force main, lower lateral N/A Replaced Meeks Bay Force Main ARV, installed bypass ports and replaced 52 feet of 6 force main at Mckinney Sewer Station, replaced 1,000 feet of 6 sewer main on 6th Ave in Tahoma. 2025 6SSO11118 6A 616 19-MAR-26 Municipal(Public) 7778 0 11 3 1 5 6 3 1 0 0 N/A 6.6 164.8 72 10 7 5 0 6 100 63 26 26 6 0 2 100 7778 3000 Lower only 49.4 1 2 5 90 2 0 0 0 0 100 0 1 0 6 0 0 0 0 0 7 0 0 0 14 0 0 0 0 0 14 30 62 36.6 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N N North Tahoe PUD 6SS011110 N/A 15 6 3 N Y Root Intrusion Lower Lateral N/A Hydro-clean and spot repairs 2023 6SSO11119 6A 616 27-MAR-24 Municipal(Public) 45000 0 10 2 1 3 3 4 6 0 0 N/A 0 19 0 0 0 90 10 0 100 0 0 0 0 0 0 0 0 0 None 0 4 0 11 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 8 0 0 Y Y Other (specify below) None Other (specify below) None N/A N/A 2024 6SSO11119 6A 616 19-MAR-26 Municipal(Public) 45000 0 10 2 1 3 3 4 6 0 0 N/A 0 19 0 0 0 90 10 0 100 0 0 0 0 0 0 0 0 0 None 0 4 0 11 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency Y N TSD 6SSO11120 N NTPUD 6SSO11110 N TCPUD 6SSO11118 N OVPSD 6SSO11114 N ASCWD 6SSO11101 N/A 8 0 0 Y Y Other (specify below) None Other (specify below) None N/A N/A 2025 6SSO11119 6A 616 19-MAR-26 Municipal(Public) 45000 0 10 2 1 3 3 4 6 0 0 N/A 0 19 0 0 0 90 10 0 100 0 0 0 0 0 0 0 0 0 None 0 6 0 11 83 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency Y N TSD 6SSO11120 N NTPUD 6SSO11110 N TCPUD 6SSO11118 N OVPSD 6SSO11114 N ASCWD 6SSO11101 N/A 8 0 0 Y Y Other (specify below) None Other (specify below) None N/A N/A 2023 6SSO11120 6A 616 27-MAR-24 Municipal(Public) 16850 0 17 5 2 7 10 3 7 0 1 0 16 215 80 11 8 1 0 0 100 74 21 5 0 0 0 100 13176 13176 Lower only 75 5 34 21 44 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 10 11 23 0 0 0 0 0 44 4 135 67 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency Y N NorthStar CSD 6A31C350665 0 20 5 3 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure 2 Cat 1 spills in 2023 - 1 due to ARV failure. 1 due to contractor damage. Lower Lateral 2 Cat 2 and 2 Cat 4 spills for the year due to offsets, bends and contractor debris in lower lateral. None. All Cat 1-4 spill deficiencies were corrected. Defective ARV was replaced with a new stainless steel ARV. Lower lateral structural defects were replaced with new PVC pipe sections. Contractors were notified and informed about not depositing debris in sewer system. TSD is currently in the final process of distributing a flyer to the local contractors association educating them on what not to put down the sewer, and to notify TSD when it happens. 2025 6SSO11120 6A 616 30-MAR-26 Municipal(Public) 17039 4 9 4 1 3 5 6 5 0 0 16 215 80 11 8 1 0 0 100 74 21 5 0 0 0 100 13304 13304 Lower only 75.5 1 33 21 44 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 10 11 23 0 0 0 0 0 44 4 207 61 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency Y N NorthStar CSD 6A31C350665 0 20 5 3 Y Y Debris-Rags See Attached documents Other (specify below) Cat 3 spill / Flushable wipes caused spill - Cat 4 spill Private oil/sand separator not maintained properly. See attached documents. See attached documents See attached documents 2023 5SSO10978 5S 616 22-MAR-24 Municipal(Public) 2550 1 2 2 2 4 2 1 2 0 0 N/A 2 18 90 8 2 0 0 0 100 1 0 99 0 0 0 100 2186 1093 Lower only 4 0 15 35 50 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 4 8 8 5SSO10978 La Contenta CS, , San Andreas, CA 95249 WWTP same agency N N/A 2 3 0 Y Debris-General N/A Gravity Mainline N/A N/A Routine cleaning and camera inspection. Public notification of acceptable sewer disposal. routine pumping and cleaning of lift stations 2024 5SSO10978 5S 616 22-DEC-25 Municipal(Public) 2550 2 1 1 2 2 1 0 1 0 0 N/A 2 18 90 8 2 0 0 0 100 1 0 99 0 0 0 100 2186 1093 Lower only 4 0 15 35 50 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 4 5 5 5B051012001 La Contenta WWT & RF, 1525 Campbell Court, Valley Springs, CA 95252 WWTP same agency N N/A 2 3 0 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A N/A Routine cleaning and camera inspections and lift station inspections. 2025 5SSO10978 5S 616 23-MAR-26 Municipal(Public) 2550 1 3 1 2 2 1 0 1 0 5 Collection system workers also hold Distribution Certifications. 2 18 90 8 2 0 0 0 100 1 0 99 0 0 0 100 2186 1093 Lower only 4 0 15 35 50 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 4 3 3 5B051012001 La Contenta WWT & RF, 1525 Campbell Court, Valley Springs, CA 95252 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 2 3 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A N/A Routine cleaning and camera inspections and lift station inspections. 2023 2SSO10113 2 616 05-MAY-25 Municipal(Public) 76000 4 3 1 1 13 5 1 0 0 0 N/A 0 175 39 42 16 2 1 0 100 0 0 0 0 0 0 0 19159 0 Lower only 90 2 25 32 27 10 3 0 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 118 3 2 071013001 Delta Diablo 2500 Pittsburg-Antioch Hwy Antioch , CA 94509 WWTP other agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2 0 2 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A No After each spill, City crews televise the main pipe or lower lateral to discover the cause of the problem. After analyzing the CCTV data, the supervisor or lead worker explores the best preventative measure based on the findings. For example, if root intrusion is the problem in a 6’’ or larger main pipe, the pipe segment gets added to the root foaming schedule. The pipe segment is scheduled for repairs if the root intrusion is severe, and a spot repair is necessary. For lower laterals with root problems, the Sewer Supervisor will schedule root foaming if the problem is mild or the entire lower lateral replacement. Crews perform year-round chronic preventive cleaning maintenance for pipes with multiple deficiencies (backup history, sags, root intrusion, and slope deficiencies), and the segments are added to a CIP project to replace the main pipes and lower laterals. 2024 2SSO10113 2 616 16-MAY-25 Municipal(Public) 76000 4 3 1 1 12 5 1 0 0 0 N/A .2 176 38 42 16 2 1 0 100 1 0 0 0 0 0 0 19670 30 Lower only 90 2 25 32 27 10 3 0 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 124 2.7 2 071013001 Delta Diablo 2500 Pittsburg-Antioch Hwy Antioch , CA 94509 WWTP other agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2 0 2 Y Y Root Intrusion N/A Gravity Mainline N/A No See Attachment 2025 2SSO10113 2 616 18-MAR-26 Municipal(Public) 76000 2 5 1 1 9 6 2 0 0 0 .2 176.1 38 42 16 2 1 0 99 1 0 0 0 0 0 1 19670 30 Lower only 90 2 25 32 27 10 3 0 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 173 3.7 2 071013001 Delta Diablo 2500 Pittsburg-Antioch Hwy Antioch , CA 94509 WWTP other agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2 0 2 Y Y Root Intrusion Gravity Mainline NO After each spill, City crews televise the main pipe or lower lateral to determine the cause of the problem. After reviewing the CCTV data, the supervisor or lead worker identifies the most appropriate preventative measures based on the findings. For example, if root intrusion is identified in a 6-inch or larger main pipe, the pipe segment is added to the root foaming schedule. If the root intrusion is severe, the pipe segment is scheduled for repairs, such as a spot repair. For lower laterals experiencing root intrusion, the Sewer Supervisor will schedule root foaming if the issue is minor, or full lower lateral replacement if the problem is more severe. Crews perform year-round preventive maintenance cleaning on pipes with chronic deficiencies, such as backup history, sags, root intrusion, or slope issues. These segments may also be included in a Capital Improvement Program (CIP) project to replace main pipes and lower laterals. 2023 2SSO10114 2 1208 04-APR-24 Municipal(Public) 7037 1 1 1 1 0 1 1 1 0 0 N/A Note: This Annual Report is being submitted on 4/3/2024 because the CIWQS website was not accessible on 4/1/2024. 1 50 82 11 7 0 0 0 100 100 0 0 0 0 0 100 23 0 None 0 1 1 14 60 24 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 7 20 1 2SSO10189 Sausalito CS, 1 East Road, Sausalito, CA 94965 WWTP other agency N 0 0 0 Y Y Root Intrusion The major cause for the largest spill in 2023 (of 3 spills) is shown. Manhole N/A N/A Roots were removed from pipe 2024 2SSO10114 2 1208 01-APR-25 Municipal(Public) 7037 0 0 1 1 0 0 1 1 0 0 N/A 1 20 82 11 7 0 0 0 100 100 0 0 0 0 0 100 2990 0 None 0 1 1 14 60 24 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 7 20 2 2SSO10189 Sausalito CS, 1 East Road, Sausalito, CA 94965 WWTP other agency N 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Roots removed from pipe. Repairs made. 2023 6SSO11123 6B 616 21-MAR-24 Municipal(Public) 38565 0 2 1 1 1 0 2 0 0 3 CWEA COLLECTION SYSTEM MAINTENANCE CERTIFICATE OF COMPEMPETENCE 5 56 0 78 21 1 0 0 100 50 50 0 0 0 0 100 7920 0 None 0 5 18 75 2 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 10 20 1 6B369805001 Adelanto WWTP, Ne Corner of Auburn & Jonathan , Adelanto, CA 92301 WWTP same agency N N/A 0 0 1 Y Y Other (specify below) vandalism, pump failure, FOG, rags Other (specify below) gravity lines, pump station mechanical, vandalism, none CCTV, monthly maintenance, repair offset, remove debris from channel due to construction, increase maintenance frequency, update master plan, sewer modeling, sewer parallel of Auburn interceptor. 2024 6SSO11123 6B 616 25-FEB-25 Municipal(Public) 39565 1 2 1 1 0 2 0 0 0 0 CWEA: COLLECTION SYSTEM MAINTENANCE CERTIFICATE OF COMPETENCE 2 100 0 78 21 1 0 0 100 0 50 50 0 0 0 100 7950 0 None 0 5 18 75 2 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 10 12.5 1 6B369805001 Adelanto WWTP, Ne Corner of Auburn & Jonathan , Adelanto, CA 92301 SSS same agency N N 0 0 1 Y Y Debris-General Manhole none CCTV, monthly maintenance, repair offset, remove debris from channel due to construction, increase maintenance frequency, update master plan, sewer modeling, sewer parallel of Auburn interceptor. 2025 6SSO11123 6B 616 31-MAR-26 Municipal(Public) 39565 3 1 2 1 0 1 0 0 0 0 CWEA, Collection System Maintenance Certificate 2 100 0 78 21 1 0 0 100 0 50 50 0 0 0 100 7950 0 None 0 5 18 75 2 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 10 10.3 0 6B369805001 Adelanto WWTP, Ne Corner of Auburn & Jonathan , Adelanto, CA 92301 WWTP same agency N 0 0 1 Y Y Debris-General Gravity Mainline None Monthly maintenance, repair offset, remove debris from channels, updating master plan, sewer modeling 2023 2SSO10115 2 616 27-MAR-24 Municipal(Public) 63484 11 30 6 5 6 5 8 5 0 15 4 115 62 17 15 5 0 1 100 0 12 23 65 0 0 100 14181 1181 Lower only 6 0 2 3 30 30 25 10 0 0 100 0 3 1 2 1 0 0 0 0 7 0 2 2 1 2 0 0 0 0 7 4 68 2 2SSO10115 South San Francisco City CS, , South San Francisco, CA 94080 WWTP same agency Y N Town of Colma 2SSO10117 N City of San Bruno 2SSO10176 N Daly City 4DW0776 n/a 6 2 0 Y Y Other (specify below) We have had deficiencies in our force mains and have come across root intrusion in our gravity mainlines. Force Main n/a We are updating the City's Sewer Master Plan and condition assessment which involves televising all of the gravity mainlines throughout the City, addressing known problem areas and placing lines on a replacement schedule based upon pipe condition noted from the CCTV inspection. We are also looking into performing an assessment on our force mains to determine pipe condition. 2024 2SSO10115 2 616 30-DEC-25 Municipal(Public) 63484 3 30 5 4 5 3 0 3 0 0 NPDES Permit R2-2019-0021 State Water Resource Control Board Chapter 9, Division 7 of California Water Code Office of Operator Certification Wastewater Treatment Plant Operator Grade II-1 Grade III-10 Grade IV- 1 Grade V- 2 Total of 14 employees 4 115 62 17 15 5 0 1 100 0 12 23 65 0 0 100 14181 1181 None 0 0 2 3 30 30 25 10 0 0 100 0 3 1 2 1 0 0 0 0 7 0 2 2 1 2 0 0 0 0 7 4 68 2 2 417038001 South San Francisco - San Bruno Water Quality Control Plant 195 Belle Air Road South San Francisco, CA 94080 San Mateo County WWTP same agency Y N Town of Colma 2SSO10117 N City of San Bruno 2SSO10176 N Daly City 4DW0776 N/A 6 2 0 Y Y Other (specify below) Sanitary main leak requiring repairs, grease deposition and root intrusion in gravity mainlines. Gravity Mainline N/A We are updating the City's Sewer Master Plan and condition assessment which involves televising all of the gravity mainlines throughout the City, addressing known problem areas and placing lines on a replacement schedule based upon pipe condition noted from the CCTV inspection. We are also looking into performing an assessment on our force mains to determine pipe condition. 2025 2SSO10115 2 616 09-APR-26 Municipal(Public) 63484 3 30 5 4 5 3 0 3 0 0 NPDES Permit R2-2019-0021 State Water Resource Control Board Chapter 9, Division 7 of California Water Code Office of Operator Certification Wastewater Treatment Plant Operator Grade II-1 Grade III-10 GradeIV-1 Grade V-2 4 115 62 17 15 5 0 1 100 0 12 23 65 0 0 100 14181 1181 None 0 0 2 3 30 30 25 10 0 0 100 0 3 1 2 1 0 0 0 0 7 0 2 2 1 2 0 0 0 0 7 4 68 96 2 417038001 South San Francisco - San Bruno Water Quality Control Plant 195 Belle Air Road South San Francisco, CA 94080 San Mateo County WWTP same agency Y N Town of Colma 2SSO10117 N City of San Bruno 2SSO10176 N Daly City 4DW0776 N/A 6 2 1 Y Y Other (specify below) Sanitary main leak requiring repairs, grease deposition and root intrusion in gravity mainlines Gravity Mainline N/A We are updating the City's Sewer Master Plan and condition assessment which involves televising all of the gravity mainlines throughout the City, addressing known problem areas and placing lines on replacement schedule based upon pipe condition noted from the CCTV inspection. We are also looking into performing an assessment on our force mains to determine pipe condition. 2023 5SSO10981 5S 616 21-DEC-25 Municipal(Public) 450 0 0 0 0 0 0 0 0 0 0 The facility has zero employees. Management and administration is supplied by Napa County Department of Public Works and certified operators are supplied through contract with private firm. 1 7 80 12 8 0 0 0 100 62 38 0 0 0 0 100 337 337 Lower only 1 0 12 0 88 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 0 0 5A280107001 WWTP same agency N 0 0 0 Y Root Intrusion Pump Station - Power None Root removal is scheduled as needed, and each lift station is equipped with its own generator. 2024 5SSO10981 5S 616 21-DEC-25 Municipal(Public) 450 0 0 0 0 0 0 0 0 0 0 The facility has zero employees. Management and administration is supplied by Napa County Department of Public Works and certified operators are supplied through contract with private firm. 1 7 80 12 8 0 0 0 100 62 638 0 0 0 0 100 337 337 Lower only 1 0 12 0 88 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 0 0 5A280107001 Lake Berryessa Resort Improvement District WWTF, Near Putah Creek at the end of Stagecoach Canyon Road , Pope Valley, CA 94567 WWTP same agency N 0 0 0 Y Root Intrusion Pump Station - Power None Root removal is scheduled as needed, and each lift station is equipped with its own generator. 2023 1SSO10081 1 616 03-FEB-24 Municipal(Public) 80 1 1 1 1 0 0 0 0 0 0 1 3 0 100 0 0 0 0 100 100 0 0 0 0 0 100 76 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1SSO10081 Westport CWD CS, , Westport, CA 95488 WWTP same agency N 0 0 0 N Y Pump Station Failure - Mechanical Pump Station - Mechanical no Redundant pumps and daily monitoring of lift station pumps. Spair pump on site. 2024 1SSO10081 1 616 17-DEC-25 Municipal(Public) 80 1 0 0 1 0 0 0 0 0 0 1 3 0 100 0 0 0 0 100 100 0 0 0 0 0 100 76 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1B75260OMEN Westport CWD, Westport , Westport, CA 95488 WWTP same agency N 0 0 0 N Y Pump Station Failure - Mechanical Pump Station - Mechanical no Redundant pumps and daily monitoring. Spare pump on site. 2025 1SSO10081 1 616 05-JAN-26 Municipal(Public) 80 0 1 0 1 0 0 0 0 0 0 .3 1.2 0 100 0 0 0 0 100 100 0 0 0 0 0 100 76 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1SSO10081 Westport CWD CS, Westport, CA 95488 WWTP same agency N 0 0 0 N Y Pump Station Failure - Mechanical Pump Station - Mechanical no Redundant pumps and daily monitoring. Spare pump on site 2023 6SSO11126 6B 616 02-APR-24 Municipal(Public) 25000 4 4 1 2 4 4 1 0 0 0 CWEA Technical Certification Program. 0 148 0 71 13 16 0 0 100 0 0 0 0 0 0 0 7266 12 Lower only 1 15 0 25 10 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 12 1 6B360101001 Barstow Wastewater Treatment Plant, 2200 E Riverside Dr , Barstow, CA 92311 WWTP same agency N N NA 0 0 1 N Y Root Intrusion NA Manhole NA NA NA 2024 6SSO11126 6B 616 01-JUL-25 Municipal(Public) 24964 4 4 2 2 2 3 1 0 0 0 CWEA Technical Certification Program. 0 148 0 71 13 16 0 0 100 0 0 0 0 0 0 0 7266 12 Lower only 1 15 0 25 10 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 1 6B360101001 Barstow WWTP, 2200 E Riverside Dr , Barstow, CA 92311 WWTP same agency N N NA 0 0 1 N Y Root Intrusion NA Manhole NA NA Currently working with engineers on updating our Sewer Master Plan. Identifying system deficiencies is apart of the SMP. 2025 6SSO11126 6B 616 27-MAR-26 Municipal(Public) 25198 4 6 3 2 3 3 1 0 0 0 CWEA Technical Certification Program. State Water Resources Control Bord. 0 148 0 71 13 16 0 0 100 0 0 0 0 0 0 0 7266 12 Lower only 1 15 0 25 10 50 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 23.8 6.6 6B360101001 Barstow WWTP, 2200 E Riverside Dr , Barstow, CA 92311 WWTP same agency N 0 0 1 N Y Other (specify below) In 2025, the City of Barstow had zero spills. Manhole NA NA Completed a Capacity Analysis Study 2023 5SSO10982 5S 616 30-DEC-25 Municipal(Public) 490 3 4 1 4 0 0 0 0 0 7 2 4 64 10 0 0 0 26 100 100 0 0 0 0 0 100 200 200 Lower only 1 0 10 90 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 4 0 0 4 0 0 0 0 0 0 4 0 1 1 5A170103001 City of Lakeport, 225 Park Street, Lakeport, CA 95453 WWTP other agency N 2 4 0 N Y Root Intrusion Manhole None None 2024 5SSO10982 5S 616 12-MAR-26 Municipal(Public) 490 3 4 1 4 0 0 0 0 0 7 2 4 64 10 0 0 0 26 100 100 0 0 0 0 0 100 200 200 Lower only 1 0 10 90 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 4 0 0 0 0 0 0 4 0 1 1 5A170103001 Lakeport City WWTP, 795 Linda Lane, Lakeport, CA 95453 WWTP other agency N 2 4 0 Y Root Intrusion Manhole None None 2025 5SSO10982 5S 616 16-MAR-26 Municipal(Public) 490 2 5 1 4 0 0 1 0 0 5 N/A 2 4 64 10 0 0 0 26 100 100 0 0 0 0 0 100 200 200 Lower only 1 0 10 90 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 4 0 0 0 0 0 0 4 0 1 1 5A170103001 Lakeport City WWTP, 795 Linda Lane, Lakeport, CA 95453 WWTP other agency N 2 4 0 Y Y Root Intrusion Manhole None None 2023 5SSO10983 5S 616 22-DEC-25 Municipal(Public) 5400 1 6 1 1 1 2 0 0 0 3 2 41 90 5 5 0 0 0 100 100 0 0 0 0 0 100 2340 2340 Lower only 8.8 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 0 0 12 0 212000 15125 5A290104003 001, , Auburn, CA WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Manhole None Routine Maintenance, searching for project funding to support CIP, Replaced 2 standby generators and added redundancy in the lift stations to call out if LS reaches high level. 2024 5SSO10983 5S 616 22-DEC-25 Municipal(Public) 5400 1 6 1 1 1 2 0 0 0 3 2 41 90 5 5 0 0 0 100 100 0 0 0 0 0 100 2340 2340 Lower only 8.8 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 0 0 12 0 198000 13025 5A290104003 Lake of the Pines WWTP, Riata Way Auburn CA WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Upper Lateral None Routine Maintenance, entered into a contract to replace 5 lift stations including controls, pumps, alarm systems and remote monitoring. 2025 5SSO10983 5S 616 31-MAR-26 Municipal(Public) 5400 1 6 1 1 1 2 0 0 0 3 2 41 90 5 5 0 0 0 100 100 0 0 0 0 0 100 2340 2340 Lower only 8.8 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5 0 0 7 0 0 0 0 0 12 0 167532 9.4 5A290104003 Lake of the Pines WWTP, Riata Way Auburn CA WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Upper Lateral None Routine Maintenance, replaced 5 lift stations including pumps, controls, alarm systems and remote monitoring. 2023 2SSO10117 2 616 09-FEB-26 Municipal(Public) 1500 2 18 4 2 2 4 3 10 0 0 The Town’s collection system is divided into two regions: • Northern portion – connected to and serviced by the North San Mateo County Sanitation District (NSMCSD). • Southern portion – connected to the City of South San Francisco (SSF). The Town maintains a contractual agreement with NSMCSD (“District”) for the operation and maintenance of the northern segment, and a separate agreement with the City of Daly City for the operation and maintenance of the southern portion. The information provided in Questions 3 and 4 of this report reflects staff and their certifications working for the North San Mateo County Sanitation District. 0 6.7 47 35 18 0 0 0 100 0 0 0 0 0 0 0 407 7 None 0 0 0 15 65 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.2 0 2417038001 South San Francisco - San Bruno Water Quality Control Plant,195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency 2417021001 North San Mateo County Sanitary District, 153 Lake Merced Blv, Daly City, Ca 94015 WWTP other agency N 1 0 2 N Y Debris-Rags Rags, debris Other (specify below) None None No deficiencies have been observed to date. Sewer smoke testing and CCTV condition assessment projects are scheduled for 2026 2024 2SSO10117 2 616 09-FEB-26 Municipal(Public) 1500 2 18 4 2 2 4 3 10 0 0 The Town’s collection system is divided into two regions: • Northern portion – connected to and serviced by the North San Mateo County Sanitation District (NSMCSD). • Southern portion – connected to the City of South San Francisco (SSF). The Town maintains a contractual agreement with NSMCSD (“District”) for the operation and maintenance of the northern segment, and a separate agreement with the City of Daly City for the operation and maintenance of the southern portion. The information provided in Questions 3 and 4 of this report reflects staff and their certifications working for the North San Mateo County Sanitation District. 0 6.7 47 35 18 0 0 0 100 0 0 0 0 0 0 0 407 7 None 0 0 0 15 65 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.2 0 2 417038001 South San Francisco - San Bruno Water Quality Control Plant,195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency 2 417021001 North San Mateo County Sanitation District WWTP, 153 Lake Merced Boulevard, Daly City, CA 94015 WWTP other agency N 1 0 2 N Y Debris-Rags Rags Other (specify below) None None No deficiencies have been observed to date. Sewer smoke testing and CCTV condition assessment projects are scheduled for early 2026 2025 2SSO10117 2 616 09-MAR-26 Municipal(Public) 1500 2 18 4 2 2 4 3 10 0 0 The Town’s collection system is divided into two regions: • Northern portion – connected to and serviced by the North San Mateo County Sanitation District (NSMCSD). • Southern portion – connected to the City of South San Francisco (SSF). The Town maintains a contractual agreement with NSMCSD (“District”) for the operation and maintenance of the northern segment, and a separate agreement with the City of Daly City for the operation and maintenance of the southern portion. The information provided in Questions 3 and 4 of this report reflects wastewater employees and their certifications working for the North San Mateo County Sanitation District. 0 6.7 47 35 18 0 0 0 100 0 0 0 0 0 0 0 407 7 None 0 0 0 15 65 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.3 0 2 417038001 South San Francisco, San Bruno Water Quality Control Plant, 195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency 2417021001 North San Mateo County Sanitation District WWTP, 153 Lake Merced Boulevard, Daly City, CA 94015 WWTP other agency N 1 0 2 N N Debris-Rags Rags and debris Gravity Mainline None No deficiencies have been observed to date. Sewer smoke testing and CCTV condition assessment projects are scheduled for early 2026. 2023 5SSO11001 5S 616 28-MAR-24 Municipal(Public) 216995 12 46 5 2 10 22 6 5 0 16 Number of employees includes maintenance and electrical employees with dual responsibilities for the collection system and the treatment plant. 7 642 56 19 5 6 5 9 100 31 4 30 2 33 0 100 65223 0 None 0 0 0 0 0 0 0 0 0 100 100 0 21 36 6 0 0 0 0 37 100 0 0 0 0 0 0 0 0 0 0 0 382 61 5C500102001 City of Modesto Regional Water Recycling Facility WWTP same agency Y N City of Ceres 5SSO10721 City of Modesto Regional Water Recycling Facility Sutter Campus 1221 Sutter Ave Modesto, CA 95350 32 3 7 Y Y Root Intrusion Damage by others - 2 Debris - 1 Grease - 2 Roots - 9 Structural Failure - 2 Gravity Mainline NA None All spills were evaluated, and corrective actions taken to prevent future spills; including increasing PM frequency, making repairs, and increased FOG enforcement. 2024 5SSO11001 5S 616 13-MAR-25 Municipal(Public) 216995 7 50 5 2 13 20 6 4 0 16 Number of employees includes maintenance and electrical employees with dual responsibilities for the collection system and the treatment plant. 7 642 56 19 5 6 5 9 100 31 4 30 2 33 0 100 65223 0 None 0 0 0 0 0 0 0 0 0 100 100 0 21 36 6 0 0 0 0 37 100 0 0 0 0 0 0 0 0 0 0 0 343 48.6 5C500102001 City of Modesto Regional Water Recycling Facility SSS same agency Y N City of Ceres 5SSO10721 City of Modesto Regional Water Recycling Facility Sutter Campus 1221 Sutter Ave Modesto, CA 95350 32 5 11 Y Y Root Intrusion Debris - 2 Grease - 2 Roots - 6 Structural Failure - 2 Gravity Mainline N/A None All spills were evaluated, and corrective actions taken to prevent future spills; including increasing PM frequency, making repairs, and increased FOG enforcement. 2025 5SSO11001 5S 616 12-MAR-26 Municipal(Public) 221529 10 50 5 2 11 23 3 4 0 16 Number of employees includes maintenance and electrical employees with dual responsibilities for the collection system and the treatment plant. 7 649 56 19 5 6 5 9 100 31 4 30 2 33 0 100 65223 0 None 0 0 0 0 0 0 0 0 0 100 100 0 21 36 6 0 0 0 0 37 100 0 0 0 0 0 0 0 0 0 0 0 351.3 56.7 5c500102001 City of Modesto Regional water recycling facility (Sutter Campus) SSS same agency Y N City Of Ceres 5ss010721 City of Modesto Regional Water Recycling Facility Sutter Campus 1221 Sutter Ave Modesto, CA 95350 32 5 11 Y Y Root Intrusion 2-Roots 1-Heavy grease 1-Heavy corrosion/Pipe deterioration 1-Bored through line with grease and debris blockage Gravity Mainline N/A None All spills were evaluated, and corrective actions taken to prevent future spills, including increasing PM frequency, making repairs, and increased FOG enforcement. 2023 5SSO10984 5S 616 22-DEC-25 Municipal(Public) 7800 1 6 1 1 1 2 0 0 0 3 2 41 80 10 10 0 0 0 100 90 10 0 0 0 0 100 3115 3115 Lower only 11.8 0 5 0 95 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 12 0 0 0 0 0 12 0 247000 16215 5A290104001 Lake Wildwood WWTP, Pleasant Valley Rd. Penn Valley WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Lower Lateral None Routine Maintenance and rate study to stabilize funds and CIP funding. Replaced standby generators, dig up and repair of problem locations identified with pipe inspections. 2024 5SSO10984 5S 616 22-DEC-25 Municipal(Public) 7800 1 6 1 1 1 2 0 0 0 3 2 41 80 10 10 0 0 0 100 90 10 0 0 0 0 100 3115 3115 Lower only 11.8 0 5 0 95 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 12 0 0 0 0 0 12 0 197000 12415 5A290104001 Lake Wildwood WWTP, Pleasant Valley Rd. Penn Valley WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Manhole None Routine Mantenance, replaced 5 sewer lift stations including pumps, controls, backup generators, alarms and level sensory equipment. Also remote monitoring equipment was installed at these 5 lift stations. 2025 5SSO10984 5S 616 31-MAR-26 Municipal(Public) 7800 1 6 1 1 1 2 0 0 0 3 2 41 80 10 10 0 0 0 100 90 10 0 0 0 0 100 3115 3115 Lower only 11.8 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5 0 0 9 0 0 0 0 0 14 0 182568 7.5 5A290104001 Lake Wildwood WWTP, Pleasant Valley Rd. Penn Valley WWTP same agency N 3 0 0 N Y Operator Error (specify below) Operators failed to turn the pumps and alarm system back on after performing maintenance activities, resulting in a sewer spill that reached the lake. Pump Station - Power Wastewater Spill at LS 23 - Dove Loop. Currently under investigation by the Waterboard enforcement team. Routine Maintenance, replaced 5 lift stations including pumps, controls, alarms and level sensory equipment. Installed audible and visual alarms alerting staff that pumps are not in the auto or running position. Also installed an external light to alert public of a malfunction to assist in response in the event that the alarm system is not functioning. 2023 5SSO10985 5S 616 22-MAR-24 Municipal(Public) 22802 4 5 1 1 6 1 0 0 0 0 N/A 20 79 3 73 19 5 0 0 100 18 11 71 0 0 0 100 6411 6411 Lower only 36 1 55 4 0 0 0 0 0 40 100 5 1 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 5B39NP00085 Lathrop Consolidated Treatment Control Facility (LCTF); 18880 Christopher Way, Lathrop, CA 95330 WWTP same agency N 0 1 0 Y Y Other (specify below) No spills occurred for this system during 2023. Other (specify below) No spills occurred for this system during 2023. No ongoing spill investigations. The City did not have any spills from the CTF collection system during 2023, and did not identify any system deficiencies. 2024 5SSO10985 5S 616 27-FEB-25 Municipal(Public) 22802 4 5 1 1 6 1 0 0 0 0 N/A 18.3 75.6 3 73 18 6 0 0 100 16 7 77 0 0 0 100 7052 7052 Lower only 40 0 56 4 0 0 0 0 0 40 100 5 1 1 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 11.9 0 5B39NP00085 City of Lathrop Consolidated Treatment Facility, 18800 Christopher Lathrop, CA, 95330 WWTP same agency N 0 1 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A None - no ongoing spill investigations Increased sewer flushing and cleaning. 2025 5SSO10985 5S 616 31-MAR-26 Municipal(Public) 27017 0 8 1 1 7 1 0 0 0 0 N/A 19.1 99.4 4 60 31 5 0 0 100 16 7 77 0 0 0 100 7727 7727 Lower only 43.9 1 56 4 0 0 0 0 0 40 100 6 1 1 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 7.5 0 5B39NP00085 Lathrop Consolidated Treatment Facility, 18800 Christopher Way, Lathrop, CA 95330 WWTP same agency N 0 1 0 Y Y Other (specify below) No active spills or new spills occurred during the reporting period. Other (specify below) None - no spills occurred during the reporting period. None. Increase sewer flushing and cleaning. 2025 2SSO20069 2 616 24-MAR-26 Municipal(Public) 134 0 1 1 1 0 0 0 0 1 0 Brian Anderson CIWQS Party ID 529124 1.7 1.5 47 0 0 0 0 0 47 53 0 0 0 0 0 53 47 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 .2 0 0 2SSO20069 CONTRA COSTA COUNTY SD 6 CS SSS same agency N 1 2 0 N Y Other (specify below) No major spills last 10 years Pump Station - Controls None Replaced pumps, conduits, wiring, and access door. 2023 6SSO11131 6B 616 06-MAR-24 Municipal(Public) 3820 0 5 1 1 2 4 0 0 0 6 0 17 52 26 20 2 0 0 100 0 0 0 0 0 0 0 1228 0 None 0 0 2 5 5 20 0 0 0 68 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3 2 6B140101001 Bishop Sewage Treatment Plant, Poletta , Bishop, CA 93514 WWTP same agency N 8 0 1 N Y Other (specify below) No spills in 2023 Other (specify below) No failures in 2023 None Cleaning and video of problem areas in collection system. 2024 6SSO11131 6B 616 23-JAN-25 Municipal(Public) 3715 0 4 1 2 2 4 0 0 0 6 0 17 52 26 20 2 0 0 100 0 0 0 0 0 0 0 1228 0 None 0 0 2 5 5 20 0 0 0 68 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 5 4 6B140101001 Bishop Sewage Treatment Plant, Poletta , Bishop, CA 93514 WWTP same agency N 8 0 1 N Y Other (specify below) No spills in 2024 Other (specify below) No failures in 2024 None Cleaning and video inspection of problem areas in collection system. 2025 6SSO11131 6B 616 06-JAN-26 Municipal(Public) 3820 0 4 1 2 3 3 0 0 0 6 0 17 52 26 20 2 0 0 100 0 0 0 0 0 0 0 1228 0 None 0 0 2 5 5 20 0 0 0 68 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 5 5 6B140101001 Bishop Sewage Treatment Plant, Poletta , Bishop, CA 93514 WWTP same agency N 8 0 5 N Y Other (specify below) No spills in 2025 Other (specify below) No failures in 2025 None Cleaning and video inspection of problem areas in the collection system. 2023 6SSO11132 6B 616 04-DEC-25 Municipal(Public) 2086 0 1 0 1 1 0 0 0 0 1 Not applicable. 0 10 10 70 20 0 0 0 100 0 0 0 0 0 0 0 665 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 0 6B150126001 Boron STP, West Boron , Boron, CA 93596 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A Not applicable. 0 0 0 N Y Other (specify below) These issues are not applicable to the system. Other (specify below) These listed issues are not applicable to the system. Not applicable. Not applicable. 2025 5SSO10987 5S 616 26-MAR-26 Municipal(Public) 59416 2 5 1 1 2 4 1 1 0 0 All Staff is certified by CWEA, California Water Environment Association 3.6 243.9 43 43 11 2 1 0 100 63 16 16 2 3 0 100 23113 23113 Lower only 182.5 12 58 18 2 0 2 1 0 7 100 0 1 1 0 0 0 0 0 0 2 1 2 3 1 0 0 0 0 0 7 0 90.9 .6 5A31NP00011 LISWA Wastewater Treatment Facility WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 32 1 0 Y Root Intrusion N/A Gravity Mainline N/A NO Root Control Program, cleaning mainlines, CCTV inspections, Manhole Inspections, Foaming 2023 5SSO10988 5S 616 28-MAR-24 Municipal(Public) 18500 2 2 1 1 3 1 0 0 0 0 0 1 67 98 100 100 100 100 0 100 2 0 0 0 0 0 0 5586 0 None 0 5 25 20 50 0 0 0 0 0 100 1 3 2 2 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 17 6 5SSO10988 Linda Co Wtr Dist CS, 1280 Scales Street, Marysville, CA 95901 WWTP same agency Y Y City of Marysville 5SSO10994 0 0 0 Y Y Other (specify below) No Major Spills, minor spills for root intrusion from lateral and water system backwash error. Manhole none root removal and modification to water system backwash flow rate. 2024 5SSO10988 5S 616 18-DEC-25 Municipal(Public) 19000 2 3 1 1 3 1 0 0 0 0 0 1 67 25 40 20 15 0 0 100 80 20 0 0 0 0 100 5636 0 None 0 5 25 20 50 0 0 0 0 0 100 1 3 2 2 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 24 17 5A580100002 001, , CA WWTP same agency Y Y City of Marysville 5SSO10994 n/a 0 0 0 Y Y Root Intrusion No additional spills in 2024. Earlier spills all minor, primairly root intrusion. Manhole n/a none Additional Line jetting and cameraing to ID root intrusion. 2025 5SSO10988 5S 616 30-MAR-26 Municipal(Public) 19250 0 4 1 1 3 1 0 0 0 0 1 68 25 40 20 15 0 0 100 80 20 0 0 0 0 100 5711 0 None 0 5 25 20 50 0 0 0 0 0 100 1 3 2 2 0 0 0 0 0 8 1 0 1 0 0 0 0 0 0 2 0 20.5 6.5 5A580100002 LCWD WWTP, 909 Myrna Ave Olivehurst, CA WWTP same agency Y N City of Marysville 5SSO10994 n/a 0 0 0 Y Y Root Intrusion No additional spills in 2025. Earlier spills all minor, primairly root intrusion. Manhole n/a none Additional Line jetting and cameraing to ID root intrusion. Progress tracked in District CMMS system. 2023 2SSO10123 2 616 01-APR-24 Municipal(Public) 19257 3 4 1 1 3 1 0 0 0 0 0 67 70 27 3 0 0 0 100 0 0 0 0 0 0 0 4500 4500 Lower only 21 0 1 2 14 83 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 46 11 2SSO10179 1577 Cragwood Lane @ Tanglewood Drive, 1577 Cragwood Lane, San Jose, CA 95127 WWTP same agency N 20 0 1 Y Y Root Intrusion Debris or Roots from Lateral, Root intrusion in laterals causing to lateral surcharge and/or mainline surcharge and discharge at the cleanout. Lower Lateral Mostly Broken lower laterals and/or some times in mainlines due to aging infrastructure The District tracks the areas of possible spill issues when performing CCTV inspections. It records the mains and laterals with sewer root intrusions, blockages, or with several structural defects or breaks and reports the Operation & Maintenance for increased frequency of cleaning and or recommends rehabilitation project. Installed Smart Cover on Manholes to improve notification of surcharging in the system; Designated On-Call Inspectors to investigate spill areas. District has implemented Capital Improvements to reduce spills in the system and to increase system resiliency. Rehabilitated severe defects of the District’s existing sanitary sewer infrastructure located near watercourses for example, repaired the pipes along Miguelita Creek. In the next two years, District will be fixing all the pipes with severe structural defects. The district has identified 89 pipes that will be rehabilitated in the next two years. Increased frequency of preventive maintenance for some of the areas with more root intrusion issues. 2024 2SSO10123 2 616 31-MAR-25 Municipal(Public) 19257 3 4 1 1 3 1 0 0 0 0 0 67 70 27 3 0 0 0 100 0 0 0 0 0 0 0 4500 4500 Lower only 21 0 1 2 14 83 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 46 11 2SSO10179 1577 Cragwood Lane, San Jose, CA 95127 WWTP same agency N 20 0 1 Y Y Other (specify below) No spills during the Year 2024. Other (specify below) Not Applicable The District implements a preventive maintenance program to reduce the risk of potential spills. It tracks potential spill areas during CCTV inspections, recording mains and laterals with sewer root intrusions, blockages, or significant structural defects or breaks. These findings are reported to the Operations & Maintenance team for increased cleaning frequency or to recommend rehabilitation projects. Smart Covers have been installed on some manholes to improve notifications of system surcharging. Designated on-call inspectors are assigned to investigate identified spill areas The District has increased preventive maintenance in areas with significant root intrusion issues. The District has implemented Capital Improvement Projects (CIP) to reduce spills in the system and increase system resiliency. During the 2022-2023 fiscal year, severe defects in the District’s existing sanitary sewer infrastructure near watercourses were rehabilitated, including pipe repairs along creek areas. The District is in the process of fixing all pipes with severe structural defects, specifically those with PACP 4 and 5 defects. The District has identified 89 pipes that will be rehabilitated in 2025 and 2026. 2025 2SSO10123 2 616 01-APR-26 Municipal(Public) 20000 3 3 2 1 1 1 0 0 0 0 0 102 70 27 3 0 0 0 100 0 0 0 0 0 0 0 6510 6510 Lower only 30 1 1 2 14 82 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24 78 12 2SSO10179 1577 Cragwood Lane, San Jose, CA 95127 WWTP same agency N 20 0 1 Y Y Root Intrusion Other (specify below) Lower Laterals and Mainlines. The District tracks areas with potential spill risks during CCTV inspections. The District inspects all sewer segments via CCTV every four years (i.e., 25% of lines annually). It identifies and records sewer mains and laterals with root intrusions, blockages, and severe structural defects or breaks, and reports these findings to Operations and Maintenance (O&M) staff for increased cleaning frequency or to recommend rehabilitation projects. Smart Covers have been installed on select manholes to provide real-time notification of system surcharging conditions. In addition, designated on-call inspectors are assigned to investigate spill-prone areas and determine the causes of any system surcharging The District addressed sanitary sewer spill risks by implementing the CSD 2-3 Structural Defect Repair Project (SDRP) and associated pipe replacement program targeting pipes with significant structural deficiencies. A total of 99 defective pipe segments, particularly those located near surface waters, were identified through inspections and prioritized for corrective action. During Phase 1 in 2025, 48 high-priority pipe segments were repaired or replaced using appropriate construction methods, including excavation and rehabilitation, following completion of design, bidding, and pre-construction activities. The remaining 51 pipe segments, also classified as severe defects (PACP Grades 4 and 5), were deferred to subsequent phases due to pavement moratorium constraints, with construction scheduled for 2026 and 2027. Through these coordinated efforts, the District is systematically eliminating critical structural deficiencies in the system, thereby reducing the likelihood of spills and imp 2023 6SSO11135 6B 616 05-MAR-24 Municipal(Public) 14000 2 0 0 1 0 0 0 1 0 1 1 43 100 99 100 100 100 0 100 0 1 0 0 0 0 1 1400 0 None 0 0 0 90 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 6SSO11135 California City CS, 10835 Nelson Drive, California City, CA 93505 WWTP same agency N 0 0 0 N Y Other (specify below) No major spills or any spills. Other (specify below) No failures of the system or signs or degradation. None No system deficiencies. 2024 6SSO11135 6B 616 31-MAR-25 Municipal(Public) 14000 1 0 0 1 0 0 0 1 0 0 3 45 1 54 34 11 0 0 100 100 0 0 0 0 0 100 1300 0 None 23 0 25 75 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 6B150118001 California City WTF, 10835 Nelson Drive, California City, CA 93595 WWTP same agency N 0 0 0 N Y Other (specify below) No major spills within the system Other (specify below) No system infrastructure failure points No ongoing spill investigations System has had no deficiencies to address. 2025 6SSO11135 6B 616 19-MAR-26 Municipal(Public) 14000 0 1 0 1 0 0 0 1 0 1 0 45 1 54 34 11 0 0 100 0 0 0 0 0 0 23 0 None 0 2 75 23 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 6B150118001 California City WTF, 10835 Nelson Drive, California City, CA 93595 WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None No deficiencies observed, no actions necessitating adressing. 2023 1SSO10018 1 616 06-JAN-26 Municipal(Public) 5000 1 4 1 1 0 0 0 0 0 0 NA 0 23.3 42 29 27 0 0 0 100 1 0 0 0 0 0 0 2366 2381 Lower only 17 0 12 20 38 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 7.5 .2 1B80078OMEN Outlet Creek, , CA WWTP same agency N N/A 9 0 5 N Y Other (specify below) Root Intrusion and FOG Fats oil and grease build up Gravity Mainline N/A none Stated sewer main cleaning program and increased inspection on FSE (Food Service Establishments) to minimize discharge of FOG into sewer system 2024 1SSO10018 1 616 07-JAN-26 Municipal(Public) 5000 1 4 1 1 0 0 0 0 0 0 N/A .4 23.3 42 29 27 0 0 0 100 1 0 0 0 0 0 0 2366 2381 Lower only 17 0 12 20 38 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 12 .3 1B80078OEM 300 N Lenore Willits Ca 95490 WWTP same agency N N/A 9 0 5 Y Other (specify below) Root Intrusion and FOG Fats oil and grease build up Gravity Mainline N/A none Started sewer main cleaning program and increased inspection on FSE (Food Service Establishments) to minimize discharge of FOG into sewer system 2025 1SSO10018 1 616 29-JAN-26 Municipal(Public) 5000 1 4 1 1 0 0 0 0 0 0 N/a .4 23.3 42 29 27 2 0 0 100 1 0 0 0 0 0 0 2366 2381 Lower only 17 0 12 20 38 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 3.6 .2 1B80078OEM 300 N Lenore Willits Ca 95490 WWTP same agency N N/a 9 0 5 Y Other (specify below) root intrusion, grease deposition Gravity Mainline none Main line cleaning program & FOG Enforcement program on (food Service Establishments) 2023 5SSO11003 5S 616 28-MAR-24 Municipal(Public) 17000 0 1 0 1 0 0 0 0 0 0 NA 0 55 0 70 25 5 0 0 100 0 0 0 0 0 0 0 7344 7344 Lower only 41 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11003 Mountain House -1 CS, 230 South Sterling Drive, 100 Mountain House, CA 95304 WWTP same agency N NA 0 0 0 N Y Debris from Construction NA Lower Lateral NA NA NA 2024 5SSO11003 5S 616 30-SEP-25 Municipal(Public) 28795 1 1 0 1 1 0 0 0 0 0 SWRCB Wastewater Operator Certifications. I, III, and V 2 70 10 60 25 5 0 0 100 0 0 100 0 0 0 100 7344 7344 Lower only 41 90 10 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5b391078003 001, , Mountain House, CA WWTP same agency N N/A 0 0 0 N Y Debris from Construction Lower Lateral N/A N/A N/A 2025 5SSO11003 5S 616 17-MAR-26 Municipal(Public) 28795 1 2 0 1 1 0 0 0 0 0 2 107 10 60 25 5 0 0 100 0 0 100 0 0 0 0 7344 7344 Lower only 10 90 10 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5b391078003 001, , Mountain House, CA WWTP same agency N N/A 0 0 0 N Y Root Intrusion N/A Lower Lateral N/A N/A N/A 2023 6SSO11136 6B 616 26-MAR-24 Municipal(Public) 168296 3 12 1 1 6 8 1 1 0 0 Environmental Compliance-1, Water Distribution D2, Water Treatment T2, Nassco PACP, Hazwoper 40 hour 5 432 1 82 16 1 0 0 100 0 100 0 0 0 0 100 36976 0 None 0 1 21 44 14 18 0 0 0 2 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 116 27 6SSO11393 County Sanitation District No. 14 CS, , Lancaster, CA WWTP other agency Y N CSMD North County Sanitation District 4SSO11370 N City of Palmdale 6SSO11137 N/A 0 0 0 Y Y Other (specify below) No spills to report this year, no major spill causes Other (specify below) No spills to report this year, no major spill causes None Submitted projects to our engineering department for Capitol Improvement Projects for repair 2024 6SSO11136 6B 616 12-FEB-25 Municipal(Public) 166236 4 11 1 1 5 6 1 1 0 0 ECI-1,Dist2,Treat2,Nassco,Hazwoper .5 434 0 82 16 1 0 1 100 0 0 0 0 0 0 0 37210 53 Upper and Lower 1 1 21 44 14 18 0 0 0 2 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .1 107.7 23.2 6SS0011393 Los Angeles County Sanitation District, 1865 West Avenue D Lancaster, CA 93534 WWTP other agency Y N CSMD County Department Public Works 4SSO11370 N City Of Palmdale 6SSO11137 N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) Grease and Rags Gravity Mainline N/A None Listed in current CIP Project 2025 6SSO11136 6B 616 18-MAR-26 Municipal(Public) 167559 5 8 1 1 3 8 0 2 0 0 Environmental Compliance-1, Water Distribution D2, Water treatment T2, Nasco PACP, Hazwoper 40 .5 432 1 82 16 1 0 0 100 0 0 0 0 0 0 0 38427 10 None 0 1 21 44 14 18 0 0 0 2 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 88 47 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP other agency Y N CSMD North County Sanitation District 4SSO11370 N City of Palmdale 6SSO11137 N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Other (specify below) No failure of system related to spill causes None Submitted projects to our engineering department for capitol improvements 2023 2SSO10125 2 616 01-APR-24 Municipal(Public) 59000 3 4 1 1 4 1 0 0 0 0 3 280 29 58 12 1 0 0 100 79 0 21 0 0 0 100 16300 16300 Lower only 90 0 1 4 19 26 25 25 0 0 100 0 0 50 50 0 0 0 0 0 100 0 38 50 12 0 0 0 0 0 100 62 218 40 2SSO10187 Santa Clara City CS, 1500 Warburton Avenue, Santa Clara, CA 95050 WWTP other agency N 17 0 16 Y Y Root Intrusion Debris or Roots from Lateral, Root intrusion in laterals causing to lateral surcharge and/or mainline surcharge and spill at the uncapped/capped cleanout. Lower Lateral Broken laterals and/or mainlines due root intrusion or at some locations due to aging infrastructure. The District tracks the areas of possible spill issues when performing CCTV inspections. It records the mains and laterals with sewer root intrusions, blockages, or with several structural defects or breaks and reports the Operation & Maintenance team for increased frequency of cleaning and or recommends rehabilitation project. Installed Smart Cover on Manholes to improve notification of surcharging in the system; Designated On-Call Inspectors to investigate spill areas. Increased frequency of preventive maintenance for some of the areas with more root intrusion issues. District has implemented Capital Improvements to reduce spills in the system and to increase system resiliency. In the next two years, District will be fixing all the pipes with severe structural defects with PACP 4 & 5 defects. The district will be spending $2 Million in 2024 & 2025, to fix all the gravity mains with significant PACP 4 & 5 defects. The district is spending $200 K for pump station capital improvements in 2024. 2024 2SSO10125 2 616 31-MAR-25 Municipal(Public) 59000 3 4 1 1 4 1 0 0 0 0 3 280 29 58 12 1 0 0 100 79 0 21 0 0 0 100 16300 16300 Lower only 90 0 1 4 19 26 25 25 0 0 100 0 0 50 50 0 0 0 0 0 100 0 38 50 12 0 0 0 0 0 100 62 218 40 2SSO10187 Santa Clara City CS, 1500 Warburton Avenue, Santa Clara, CA 95050 WWTP other agency N 17 0 16 Y Y Root Intrusion Debris or Roots from lateral, Root intrusion in laterals causing to lateral surcharge and/or Roots in mainline caused /blockage & surcharge and overflow at manhole and spill at the uncapped/capped cleanout. Lower Lateral Broken laterals, uncapped PLCO, and/or mainline due root intrusion or at some locations due to aging infrastructure. The District tracks potential spill issues during CCTV inspections, recording mains and laterals with sewer root intrusions, blockages, or significant structural defects or breaks. These findings are then reported to the Operations & Maintenance team for increased cleaning frequency or to recommend rehabilitation projects. Smart covers have been installed on manholes to improve notifications in the event of system surcharging. Designated on-call inspectors are assigned to investigate identified spill areas. The District has increased preventive maintenance in areas with significant root intrusion issues. It is also in the process of developing a blockage prevention program by correlating tree locations near laterals with maintenance history. Additionally, the District has implemented capital improvements to reduce spills and enhance the system's resiliency. The District is actively addressing all pipes with severe structural defects, specifically those with PACP 4 and 5 defects. A budget of approximately $2.5 million has been allocated to repair the sewer mainlines with PACP 4 and 5 defects and for Pump Station Capital Improvements from 2025 to 2027. 2025 2SSO10125 2 616 01-APR-26 Municipal(Public) 59000 3 7 2 1 6 2 0 0 0 0 1.1 271.5 29 58 12 1 0 0 100 79 0 21 0 0 0 100 16709 16709 Lower only 79.5 0 1 4 19 26 25 25 0 0 100 0 0 50 50 0 0 0 0 0 100 0 38 50 12 0 0 0 0 0 100 39.8 231.7 45.5 2SSO10187 Santa Clara City CS, 1500 Warburton Avenue, Santa Clara WWTP other agency N 17 0 16 Y Y Root Intrusion Lower Lateral The District tracks the areas of possible spill issues when performing CCTV inspections. It records the mains and laterals with sewer root intrusions, blockages, or with severe structural defects or breaks and reports the Operation & Maintenance for increased frequency of cleaning and or recommends rehabilitation project. Designated On-Call inspectors to investigate spill areas. The District has implemented a comprehensive program to rehabilitate its sewer system using condition assessment data to guide prioritized repairs and long-term planning. This multi-phase effort focuses on addressing critical defects in mainlines and laterals, reducing risk of failure, and improving overall system reliability while aligning with the Capital Improvement Plan. In parallel, the District is advancing a proactive, two-tiered strategy to upgrade aging sewer lift stations. Immediate improvements target safety, equipment reliability, and operational efficiency, while long-term upgrades address system capacity, modernization, and future growth. Together, these coordinated efforts enhance system performance, support regulatory compliance, and protect public health. This approach ensures that both urgent needs and long-term sewer system infrastructure goals are effectively balanced. 2023 6SSO11137 6B 616 25-MAR-24 Municipal(Public) 163463 2 6 1 1 2 3 1 0 0 6 1- Qualified Applicator License 1 395 0 86 14 0 0 0 100 100 0 0 0 0 0 100 39586 45 None 1 23 63 5 9 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 127 6 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP same agency Y N LACo DPW Unincorporated North County 4SSO11370 N/A 0 0 0 Y Y Other (specify below) Public works inspector failed to have pipe plug removed when new housing tract connected to existing sewer system. Other (specify below) N/A There are no ongoing spill investigations at this time. PACP grading system is used to rate deficiencies. CIP sewer projects are based on the most likely to fail. 2024 6SSO11137 6B 616 17-MAR-25 Municipal(Public) 161404 1 6 1 1 2 4 1 0 0 7 2- Qualified Applicator Licenses 1- Environmental Compliance Inspector 1 395 0 86 14 0 0 0 100 100 0 0 0 0 0 100 39586 45 None 0 23 63 5 9 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 100 1 155 32 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP other agency 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP other agency Y N LACo DPW Unincorporated North County 4SSO11370 N Los Angeles City Bureau of Sanitation 4SSO10491 N/A 0 0 0 Y Y Other (specify below) No spills to report this year. Previous years have had vandalism being a factor. Other (specify below) N/A No ongoing spill investigations at this time. PACP grading system is used to rate deficiencies. CIP projects are based on the most likely to fail. 2025 6SSO11137 6B 616 16-MAR-26 Municipal(Public) 160000 2 6 1 1 2 3 1 0 0 6 2- Qualified Applicator License 1- Environmental Compliance 1 395 0 86 14 0 0 0 100 100 0 0 0 0 0 100 51000 45 None 1 23 63 5 9 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 193 2 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP other agency 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP other agency Y Y LACo DPW Unincorporated North County 4SSO11370 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A There are no ongoing spill investigations at this time. PACP grading system is used to rate deficiencies. CIP sewer projects are based on the grading system. 2023 5SSO10991 5S 616 26-FEB-24 Municipal(Public) 3233 0 3 2 1 0 0 0 0 0 0 N/A 3 10 75 25 0 0 0 0 100 60 40 0 0 0 0 100 882 882 Lower only 5 0 1 0 99 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 3 0 8 0 5B390102002 Lockeford CSD WWTP, 17725 North Tully Road, Lockeford, CA 95237 WWTP same agency N/A N/A N/A N/A N/A N/A N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 N Y Root Intrusion N/A Gravity Mainline N/A None Preventative maintenance is done monthly to address any deficiencies. 2024 5SSO10991 5S 616 25-MAR-25 Municipal(Public) 3572 0 3 2 1 0 0 0 0 0 0 N/A 3 0 75 25 0 0 0 0 100 60 40 0 0 0 0 100 882 882 Lower only 5 0 1 0 99 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 3 0 8 0 5B390102002 Lockeford CSD WWTP, 17725 North Tully Road, Lockeford, CA 95237 WWTP same agency N/A N/A WWTP same agency N/A N/A WWTP same agency N/A N/A WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 N Y Root Intrusion N/A Gravity Mainline N/A None Preventative maintenance is done monthly to address any deficiencies. 2025 5SSO10991 5S 616 16-MAR-26 Municipal(Public) 3572 0 3 2 1 0 0 0 0 0 0 N/A 3 10 75 25 0 0 0 0 100 60 40 0 0 0 0 100 882 882 Lower only 5 0 1 0 99 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 3 0 8 0 5B390102002 Lockeford CSD WWTP, 17725 North Tully Road, Lockeford, CA 95237 WWTP same agency N/A N/A WWTP same agency N/A N/A WWTP same agency N/A N/A WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 N Y Root Intrusion N/A Gravity Mainline N/A None Preventive maintenance is performed monthly to identify and correct any deficiencies, including hydro-cleaning of gravity mains. 2023 2SSO10127 2 616 28-MAR-24 Municipal(Public) 218281 4 23 3 2 6 7 10 1 5 17 N/A 18 54 15 50 17 15 2 0 100 8 0 37 55 0 0 100 5455 0 None 0 0 7 33 18 12 2 0 0 28 100 0 1 4 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 4 22 11 2SSO10127 Delta Diablo SD CS, 2500 Pittsburg-Antioch Highway, Antioch, CA 94509 WWTP same agency Y N City of Antioch 5SSO10890 N City of Pittsburg 2SSO10113 N/A 59 5 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Rootx Root Foam and Dukes Root Control. 2024 2SSO10127 2 616 30-DEC-25 Municipal(Public) 218281 4 23 3 2 7 7 10 1 5 17 N/A 18 54 15 50 17 15 2 0 100 8 0 37 55 0 0 100 5455 0 None 0 0 7 33 18 15 2 0 0 28 100 0 1 4 0 8 0 0 0 0 0 0 0 1 0 8 0 0 0 0 0 4 24.8 6.3 2 071013001 Delta Diablo WWTP, 2500 Pittsburg Antioch Hwy, Antioch, CA 94509 WWTP same agency Y N City of Antioch 5SSO10890 N City of Pittsburg 2SSO10113 Y Delta Diablo SD CS 2SSO10127 N N/A N/A N N/A N/A N/A 59 5 0 Y Y Pipe Structural Problem/Failure - Installation N/A Force Main N/A N/A Planned replacement of failed Force Main. Training for system operators and maintainers. 2025 2SSO10127 2 616 27-MAR-26 Municipal(Public) 219480 2 15 12 3 5 7 5 1 5 17 N/A 18.3 56.9 15 50 17 16 2 0 100 8 0 37 55 0 0 100 5466 0 None 0 0 7 33 18 15 2 0 0 25 100 0 7 31 0 62 0 0 0 0 100 0 0 11 0 89 0 0 0 0 100 4 26.3 10.2 2 071013001 Delta Diablo WWTP, 2500 Pittsburg Antioch Hwy, Antioch, CA 94509 WWTP same agency Y N City of Antioch 5SSO10890 N City of Pittsburg 2SSO10113 Y Delta Diablo SD CS 2SSO10127 N/A 59 5 0 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Two spills were associated with ARV locations, and two spills were associated with bypass pumping due to rehabilitation work on our system. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) The two spills associated with bypass pumping were due to a failure of the automatic priming system and two spills were associated with forcemain ARV failures. N/A We have updated our requirements for contractors operating bypass pumping systems and will continue performing our current ARV preventative maintenance program. 2023 5SSO11005 5S 616 04-APR-24 Other 5400 0 11 3 2 0 3 0 1 0 0 None 1 5 6500 3500 15080 0 0 0 0 300 0 5000 0 0 0 0 250 250 Upper and Lower 4 0 25 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5B030802002 4001 Highway 104 WWTP same agency Y Y Preston youth facility 5SSO11502 N Cal fire training facility 5B030802002 no 1 1 0 Y Y Pump Station Failure - Controls high limit alarm Pump Station - Mechanical motor failure none alarm system update 2024 5SSO11005 5S 616 21-MAR-25 Other 5400 1 11 3 3 0 2 0 1 0 0 1 5 6500 3500 15080 0 0 0 0 300 0 5000 0 0 0 0 250 250 Upper and Lower 4 0 25 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 .2 5B03802002 4001 Highway 104 WWTP same agency N Y PRESTON YOUTH FACILITY 5SSO11502 N CAL FIRE TRAINING FACILITY 5B03802002 NO 1 1 0 Y Y Debris-General Inmates flushing things that shouldn't be flushed Manhole most resent spill was at a plugged main that appeared at a manhole no monitor systems 2025 5SSO11005 5S 616 01-APR-26 Other 5400 1 11 3 3 0 2 0 1 0 0 1 5 6500 3500 15080 0 0 0 0 300 0 5000 0 0 0 0 250 250 Upper and Lower 4 0 25 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .6 0 5B03802002 WWTP same agency N Y PRESTON YOUTH FACILITY 5SSO11502 N CAL FIRE TRAINING FACILITY 5B03802002 no 1 1 0 Y Y Debris-General inmates flushing things that shouldn't be flushed Manhole most resent spill was a plugged man that appeared at a manhole no monitor system 2023 6SSO11139 6B 616 19-MAR-24 Municipal(Public) 9892 2 6 0 1 3 5 0 1 0 9 CWEA Training, CSDA Training, Pryor Learning System 2 90 15 75 10 0 0 0 100 43 11 46 0 0 0 100 6524 0 None 0 0 0 0 80 20 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 2 0 0 0 0 0 2 1 17 2 6B360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 WWTP same agency Y N Pilot Rock Conservation Camp 6B360811001 N/A 57 1 0 Y Root Intrusion N/A Pump Station - Mechanical N/A N/A Repaired and placed on maintenance schedule for televising and cleaning 2024 6SSO11139 6B 616 28-APR-25 Municipal(Public) 10431 6 7 2 1 4 4 1 1 0 4 CWEA Training, CSDA Training, Pryor Learning System 2 90 15 75 10 0 0 0 100 43 11 46 0 0 0 100 6524 0 None 0 0 0 0 80 20 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 2 0 0 0 0 0 2 1 19.7 4.7 6B360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 WWTP same agency Y N Pilot Rock Conservation Camp 6B360811001 N/a 57 1 0 Y Y Root Intrusion N/A Manhole N/A 0 Continue to increase televising and cleaning. 2025 6SSO11139 6B 616 03-MAR-26 Municipal(Public) 10431 5 8 2 1 5 5 2 0 0 7 CWEA Training, CSDA Training, Pryor Learning System 2 90 15 75 10 0 0 0 100 43 11 46 0 0 0 100 6524 0 None 0 0 0 0 80 20 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 2 0 0 0 0 0 2 1 19.7 4.7 6B360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 WWTP same agency Y N Pilot Rock Conservation Camp 6B360811001 N/A 57 1 0 Y Y Root Intrusion N/A Manhole N/A 0 Continue to increase televising and cleaning. 2023 2SSO10128 2 616 25-MAR-24 Municipal(Public) 86238 0 13 2 1 2 9 2 3 0 0 NA 0 227 3 80 12 4 1 0 100 0 0 0 0 0 0 0 24538 13 Upper and Lower 0 1 42 24 31 1 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 33 14 2 019033001 002F1-Dublin San Ramon Services District WWTP, 7399 Johnson Dr. Pleasanton, CA 94588 WWTP same agency N NA 30 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 2SSO10128 2 616 26-MAR-25 Municipal(Public) 88426 1 6 1 1 3 2 2 2 0 2 N/A .1 233.3 3 80 12 4 1 0 100 0 0 0 0 0 0 0 25690 13 Upper and Lower .1 2 43 24 30 1 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 .1 42.2 34.7 2 019033001 002F1-Dublin, , CA WWTP same agency Y N City of Pleasanton 2SSO10167 N/A 30 0 3 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Controls N/A None * For the Spill caused by Fats, oil and grease, the cause of the grease issue was identified, and operational changes were made by the discharger to prevent the grease that was demulsified from bypassing grease trap. They were put on 3-month inspection and required to lower their dishwash temperature. * For the Pump station control issue, a backup monitor from the main SCADA server was set up in case a station was unable to send out a communication alarm. The SCADA server would notice no communication coming back and send out an alarm. 2025 2SSO10128 2 616 02-MAR-26 Municipal(Public) 88426 0 7 1 1 3 2 2 2 0 1 N/A .1 233.4 3 80 12 4 1 0 100 100 0 0 0 0 0 0 25690 13 Upper and Lower .1 3 42 25 29 1 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .1 48.7 20.8 2 019033001 002F1-Dublin, , CA WWTP same agency Y N City of Pleasanton 2SSO10167 N/A 30 0 3 Y Y Other (specify below) No major spills Other (specify below) No failure points occurred. None None 2023 6SSO11140 6B 616 04-DEC-25 Municipal(Public) 800 0 1 0 1 1 0 0 0 0 1 Not applicable. 0 4 0 100 0 0 0 0 100 0 0 0 0 0 0 0 251 0 None 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 6B150103001 Desert Lake CSD WTF, W of Boron , Boron, CA 93516 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A Not applicable. 0 0 0 N Y Other (specify below) These issues are not applicable to the system. Other (specify below) These issues are not applicable to the system. Not applicable. Not applicable. 2024 6SSO11140 6B 616 04-DEC-25 Municipal(Public) 800 0 1 0 1 1 0 0 0 0 1 Not applicable 0 4 0 100 0 0 0 0 100 0 0 0 0 0 0 0 251 0 None 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 6B150103001 Desert Lake CSD WTF, W of Boron , Boron, CA 93516 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A Not applicable 0 0 0 N N Other (specify below) These issues are not applicable to the system. Other (specify below) These issues are not applicable to the system. Not applicable. Not applicable. 2023 2SSO10129 2 616 27-MAR-24 Municipal(Public) 26835 2 2 1 1 1 1 2 1 0 0 N/A 0 30 70 20 7 3 0 0 100 0 0 0 0 0 0 0 4600 1 None 0 0 20 10 10 20 40 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30 30 2SSO10164 180 Hamilton, , Palo Alto, CA WWTP same agency N N N N/a N/a N N/A N/A N N/A N/A N N/A N/A 1 0 2 Y Y Debris-wipes/Non-disposables Gravity Mainline N/A We CCTV the line to make sure it was ok 2024 2SSO10129 2 616 07-MAR-25 Municipal(Public) 26835 1 0 0 3 0 0 0 0 0 0 East Palo Alto Sanitary District became a subsidiary of the City of East Palo Alto, CA. Oct. 1, 2024 through LAFCo. West Bay Sanitary District (https://www.westbaysanitary.org/) entered into a 5 year agreement to perform all O&M in the sewer system, including repairs, emergency and planned as of that date. The operations of the District are managed by Richard Perez (Utility Manager / LRO / D3/ T2, 25 years in potable water), Humza Javed (District Engineer) Melvin Gaines (District General Manager). EPASD has also contracted with Freyer & Laureta (https://www.freyerlaureta.com/) to perform engineering for all projects & development along with Fischer Compliance (https://fischercompliance.com/) as staff augmentation as needed for regulatory reporting. 0 35 70 15 10 5 0 0 100 0 0 0 0 0 0 0 6807 1 None 0 8 23 10 26 30 0 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1322 3011 2 438011001 Palo Alto Regional Water Quality Control Plant 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 2 0 3 Y Y Collection System Maintenance Failure (specify below) Before Oct 1, 2024, the City of East Palo Alto, CA cannot answer this question for certain due to the lack or absence of maintenance and work order documentation. However, as WBSD performs segment cleaning and CCTV, this information is entered into Lucidy. We can confirm that there was a lack of infrastructure operations and maintenance which has attributed to SS0's. Our goal is zero SSO's. Below are the only certified reports of SSO's for 2024. 1296 Garden Street (ID 897938-CAT 1) 2120 Salas Ct (ID 897765-CAT 3) Gravity Mainline N/A WBSD responds to all calls and emergencies within an hour. They identify issues and resolve them immediately. Infrastructure issues that are identified, that can be scheduled for repair, are done so. We have completed our SSMP audit and are working on updating our Master Plan, capacities, flows, fee's and other. The City of East Palo Alto has positioned itself with best in business partners to address all decencies. WBSD is our O&M partner, 24x7. Any issues in our system are addressed immediately or scheduled. 2025 2SSO10129 2 616 18-FEB-26 Municipal(Public) 26835 1 0 0 3 0 0 0 0 0 0 East Palo Alto Sanitary District became a subsidiary of the City of East Palo Alto, CA. on Oct. 1, 2024 through LAFCo. West Bay Sanitary District (https://www.westbaysanitary.org/) entered into a 5 year agreement to perform all O&M in the sewer system, including repairs, emergency and planned as of that date. EPASD is manage by Matt Vining (Utility Manager/LRO/D4/T2), Humza Javed(District Engineer), and Melvin Gaines (General Manager). EPASD has on call engineering technical service contracts with Freyer & Laureta, EKI, and Fischer Compliance to perform engineering on all projects & development and compliance. Staff augmentation comes as required for regulatory reporting. 0 35 70 15 10 5 0 0 100 0 0 0 0 0 0 0 6807 1 None 0 8 23 10 26 70 0 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1322 3011 2 438011001 Palo Alto Regional Water Quality Control Plant, 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 2 0 3 Y Y Collection System Maintenance Failure (specify below) Before Oct 1, 2024, the City of East Palo Alto, CA cannot answer this question for certain due to the lack or absence of maintenance and work order documentation. However, as WBSD performs segment cleaning and CCTV, this information is entered into Lucidy. We can confirm that there was a lack of infrastructure operations and maintenance which has attributed to SS0's. Our goal is zero SSO's. 2025 had zero SSO's. Gravity Mainline N/A WBSD responds to all calls and emergencies within an hour. They identify issues and resolve them immediately. Infrastructure issues that are identified, that can be Scheduled for repair, are done so. We have completed our SSMP audit and are working on updating our Master Plan, capacities, flows, fee's and other. The City of East Palo Alto has positioned itself with best in business partners to address all decencies. WBSD is our O&M partner, 24x7. Any issues in our system are addressed immediately or scheduled. 2023 5SSO10993 5S 616 28-MAR-24 Municipal(Public) 88474 11 16 4 2 5 7 5 0 2 0 0 21 280 55 22 14 6 1 2 100 29 0 71 0 0 0 100 27447 80 Lower only 207 10 10 20 40 15 5 0 0 0 100 1 7 4 1 0 0 0 0 0 13 0 0 0 0 0 0 0 0 0 0 0 26 9 5SS010993 City of Manteca Water Quality CP WWTP same agency Y N City Of Lathrop 5SS010897 N Raymus 5SS011035 N Oakwood Shores 5SS002285 no 2 0 2 N Y Debris-General Some Roots intrusions that we apply Dukes root foam to. Gravity Mainline We have some Hot Spots in the system that we monitor through CMMS. These Hot Spots are mainly Bellies and some roots intrusions. no Repairs, Root Foam, and Annual Cleaning of Hot Spots. 2024 5SSO10993 5S 616 17-MAR-25 Municipal(Public) 91059 9 18 4 2 5 8 3 1 4 0 0 21 290 57 22 14 6 1 0 100 29 0 71 0 0 0 100 28000 80 Lower only 207 10 10 20 15 5 0 0 0 0 0 1 7 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 25 5SS010993 City of Manteca Quality WWTP same agency N N City of Lahrop SS010897 N Raymus SS011035 N Oak wood Shores SS002285 No 2 0 2 N Y Fats, Oil and Grease (FOG) Some Roots intrusions that we apply Dukes root foam to. Cleaning hotspots with grease chemical. Gravity Mainline Lower laterals. Hot spot list that we monitor with CMMS. These hotspots are bellies and roots. SmartCover sensors on 6 of our hotspots and all hots are monitored by CMMS. 2025 5SSO10993 5S 616 10-APR-26 Municipal(Public) 99407 8 19 4 2 4 10 6 3 4 0 0 21 310 55 22 14 6 1 2 100 29 0 71 0 0 0 100 29500 80 Lower only 250 10 10 20 40 15 5 0 0 0 100 1 7 4 1 0 0 0 0 14 13 0 0 0 0 0 0 0 0 0 0 0 60 20 5SS010993 City of Manteca Water Quality CP WWTP same agency Y N City of Lathrop 5SS010897 N Raymus 5SS011035 N Oakwood Shores 5SS002285 No 2 0 2 N Y Debris-General Some Roots intrusions that we apply Duke’s foam to. Gravity Mainline We have some hotspots in the system that we monitored through CMMS. these hotspots are mainly bellies and some root intrusions. No Repairs, root foam, and annual cleaning of hot hotspots. 2025 6SSO11142 6B 616 01-APR-26 Other 150 2 3 1 1 0 0 0 0 0 0 We have two level 1 CA wastewater treatment license holders on staff 2 5 100 0 0 0 0 0 0 10 0 0 0 0 0 0 50 50 Upper and Lower 2 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 .5 0 0 220928 Furnace Creek Lagoons highway 190 Death Valley, CA, 92328 WWTP same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) Normal Blockages Gravity Mainline none Jetting program 2023 5SSO10994 5S 616 11-MAR-25 Municipal(Public) 3720 1 2 0 2 0 1 0 0 0 1 NA 3 38 325 47 19 0 0 1 100 0 0 0 100 0 0 100 5244 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 12 1 5A580100002 Linda Cnty Water District WWTP WWTP other agency N 0 700 0 Y Y Debris from Lateral NONE Lower Lateral NONE NONE 2024 5SSO10994 5S 616 11-MAR-25 Municipal(Public) 3720 1 2 0 2 0 1 0 0 0 1 3 5244 325 47 19 0 0 1 100 0 0 0 100 0 0 100 5244 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 4 1 5A580100002 Linda Cnty Water District WWTP WWTP other agency N 0 700 0 Y Y Debris from Lateral Lower Lateral none none 2023 6SSO11143 6B 616 29-MAR-24 Municipal(Public) 6500 0 3 1 0 0 1 0 0 0 0 1 32 0 77 19 4 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 75 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 26 1 6B140108001 Eastern Sierra CSD WWTF, 301 West Line Street, Bishop, CA 93514 WWTP same agency Y N Bishop Paiute Reservation N/A 9 0 0 N Y Fats, Oil and Grease (FOG) Pump Station - Power None Purchased a Generator for Valley View pump station. 2024 6SSO11143 6B 616 27-JAN-25 Municipal(Public) 6500 0 3 1 0 0 1 0 0 0 0 N/A 1 32 0 77 19 4 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 75 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 4.2 1.7 6B140108001 Eastern Sierra CSD WWTF, 301 West Line Street, Bishop, CA 93514 WWTP same agency Y N Bishop Paiute Reservation N/A 9 0 0 N Y Fats, Oil and Grease (FOG) Pump Station - Power None Purchased an Emergency Generator for Valley View Pump Station. 2025 6SSO11143 6B 616 31-MAR-26 Municipal(Public) 6500 0 3 1 0 1 1 0 0 0 0 1 32 0 77 19 4 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 75 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 3.5 3.5 6B140108001 Eastern Sierra CSD WWTF, 301 West Line Street, Bishop, CA 93514 WWTP same agency Y N Bishop Paiute Reservation N/A 9 0 0 N Y Fats, Oil and Grease (FOG) Pump Station - Power NONE USDA Grant to Line (CIPP) 7 miles of mainline. 2023 1SSO10085 1 616 27-MAR-24 Municipal(Public) 27000 0 7 1 3 1 4 0 0 0 3 N/A 1 94 49 32 15 4 0 0 100 100 0 0 0 0 0 100 8250 0 None 0 0 10 50 39 1 0 0 0 0 100 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 35 1B82037OSON Windsor Water Reclamation and Disposal Facility, 8400 Windsor Road, Windsor, CA 95492 WWTP same agency N N/A 52 0 2 Y Y Other (specify below) No major spills Other (specify below) None None N/A 2024 1SSO10085 1 616 24-MAR-26 Municipal(Public) 27000 0 6 1 3 1 4 0 0 0 3 N/A 1 94 49 32 15 4 0 0 100 100 0 0 0 0 0 100 8250 0 None 0 1 9 50 39 1 0 0 0 0 100 0 1 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 13 3 1B82037OSON Windsor Water District Wastewater Treatment, Reclamation and Disposal Facility, 8400 Windsor Rd. Windsor, CA 95492 WWTP same agency Y N SCWA Airport CS 1SSO10062 N/A 52 0 2 Y Y Other (specify below) No Spills Other (specify below) No Spills None N/A 2025 1SSO10085 1 616 24-MAR-26 Municipal(Public) 27000 1 5 1 3 0 4 0 0 0 1 N/A 1 105 49 32 15 4 0 0 100 100 0 0 0 0 0 100 8580 0 None 0 1 9 50 39 1 0 0 0 0 100 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 6 1B82037OSON Windsor Water District Wastewater Treatment, Reclamation and Disposal Facility, 8400 Windsor Rd. Windsor, CA 95492 WWTP same agency Y N SCWA Airport CS 1SSO10062 N/A 52 0 2 Y Y Operator Error (specify below) Operator failed to return pumps to auto Other (specify below) Operator error None N/A 2023 5SSO10997 5S 616 30-DEC-25 Municipal(Public) 1125 3 4 1 4 0 0 0 0 0 7 6 13 98 2 0 0 0 0 100 100 0 0 0 0 0 100 664 66 Lower only 6 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 2 1 10 1 5A170111001 Middletown Regional Waste Disp Fac CS, 20126 Hwy 175 , Middletown, CA 95461 WWTP same agency N 0 7 0 N Y Root Intrusion Manhole None None 2024 5SSO10997 5S 616 12-MAR-26 Municipal(Public) 1125 3 4 1 4 0 0 0 0 0 7 6 13 98 2 0 0 0 0 100 100 0 0 0 0 0 100 664 664 Lower only 6 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 2 1 10 1 5A170111001 Middletown Regional Waste Disp Fac CS, 20126 Hwy 175 , Middletown, CA 95461 WWTP same agency N 0 7 0 Y Y Root Intrusion Manhole None None 2025 5SSO10997 5S 616 18-MAR-26 Municipal(Public) 1125 2 6 1 4 0 0 1 0 0 8 6 13 98 2 0 0 0 0 100 100 0 0 0 0 0 100 664 664 Lower only 6 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 2 1 0 0 5A170111001 Middletown Regional Waste Disp Fac CS, 20126 Hwy 175 , Middletown, CA 95461 WWTP same agency N 0 7 0 Y Y Root Intrusion Manhole None None 2023 5SSO20007 5S 616 22-MAR-24 Park (w/Campground) 2400 0 5 1 1 0 0 0 0 0 1 Grade 1 wastewater operator certificate. certificate number 44535 5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 8 8 Upper and Lower 7 0 0 30 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 0 5SSO10100 Modesto Reservoir CS, 3800 Cornucopia Way, C Modesto, CA 95358 WWTP same agency N n/a 0 0 0 Y Y Other (specify below) no spills Other (specify below) No fails none System is well maintained 2023 5SSO20007 5S 616 13-OCT-23 2400 1 11 2 1 0 0 0 0 0 1 1 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 1 0 0 30 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 0 5SSO10100 Modesto Reservoir CS N N N N N N 0 0 0 N Y n/A n/a n/a N/A 2024 5SSO20007 5S 616 31-DEC-25 Park (w/Campground) 2400 0 5 1 1 0 0 0 0 0 1 Grade ! wastewater operator certificate. certificate number 44535 5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 8 8 Upper and Lower 7 0 0 30 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 0 5C500112003 Modesto Reservoir WWTP, 18143 Reservoir Road, Waterford, CA 95386-8729 WWTP same agency N n/a 0 0 0 Y Y Other (specify below) no spills Other (specify below) no fails none system is well maintained 2023 2SSO10087 2 616 01-APR-24 Municipal(Public) 76000 2 9 2 2 0 2 0 1 0 0 NA 8 142 23 52 22 3 0 0 100 42 8 50 0 0 0 100 20067 20067 Lower only 76 6 27 26 9 3 2 15 0 11 100 6 17 0 0 0 0 0 0 20 46 0 0 0 0 0 0 0 0 0 0 5 15 6 2 19014001 EBMUD, 2020 Wake Ave, Oakland, CA 94607 WWTP same agency N 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Lower Lateral None The City replaces nearly 3 miles of sewer pipe, associated manholes, and lower laterals each year. The City also does preventive maintenance work including, but not limited to, cleaning, root control and condition assessment. 2024 2SSO10087 2 616 09-JUL-25 Municipal(Public) 76000 2 9 2 2 0 2 0 1 0 0 5.3 138 21 53 22 3 0 1 100 48 10 41 0 0 1 100 20067 20067 Lower only 76 8 27 27 10 3 2 14 0 9 100 6 17 0 0 0 0 0 0 20 46 0 0 0 0 0 0 0 0 0 0 5 24.1 22.4 2 019014001 001-EBMUD, , CA WWTP other agency N 0 0 0 Y Y Debris-General Lower Lateral NA The City replaces nearly 3 miles of sewer pipe, associated manholes, and lower laterals each year. The City also does preventive maintenance work including, but not limited to, cleaning, root control and condition assessment. 2025 2SSO10087 2 616 31-MAR-26 Municipal(Public) 78795 2 9 2 2 0 2 1 1 0 0 5.1 137.2 19 55 22 3 0 1 100 47 11 41 0 0 1 100 20089 20089 Lower only 76 9 27 27 10 3 2 13 0 9 100 6 17 0 0 0 0 0 0 20 46 0 0 0 0 0 0 0 0 0 0 5 15.6 15.6 2 019014001 001-EBMUD, , CA WWTP other agency N 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance NA Lower Lateral NA The City replaces nearly 3 miles of sewer pipe, associated manholes and lower laterals each year. The City also performs preventive maintenance work, including but not limited to, cleaning, root control, condition assessment and repairs. 2023 2SSO10131 2 616 26-MAR-24 Municipal(Public) 740000 0 7 2 2 0 0 0 0 0 0 NA 9 29 0 0 3 14 83 0 100 0 1 23 72 4 0 100 10 0 None 0 0 5 32 9 54 0 0 0 0 100 0 6 6 0 1 0 0 0 0 13 0 1 1 0 0 0 0 0 0 2 1 2 3 2 019014001 EBMUD WPCP WWTP same agency Y N City of Alameda 2SSO10087 N City of Oakland 2SSO11204 N City of Berkeley 2SSO10096 N City of Emeryville 2SSO10133 N City of Piedmont 2SSO10166 Owned System Name WDID No Stege Sanitary District 2SSO10198 No City of Albany 2SSO10088 9 2 6 Y Y Other (specify below) Loss of power on primary and back-up utility lines at Main WWTP due to windstorm. Wastewater backed up in interceptor and was discharged on overflow structure OV-1 at Alice Street in Oakland. Other (specify below) Back-up power from internal generation (cogeneration) did not fully function after power transfer to Main WWTP during utility outage. NA - only one SSO occurred in 2023 Improvements and additional testing of internal generation (cogeneration) of power transfer to Main WWTP when utility power is lost. 2024 2SSO10131 2 616 25-MAR-25 Municipal(Public) 740000 0 7 2 2 0 0 0 0 0 0 NA 9 29 0 0 3 14 83 0 100 0 1 23 72 4 0 100 10 0 None 0 0 5 32 9 54 0 0 0 0 100 0 6 6 0 1 0 0 0 0 13 0 1 1 0 0 0 0 0 0 2 1 .5 2.2 2 019014001 EBMUD WPCP WWTP same agency N N City of Alameda 2SSO10087 N City of Oakland 2SSO11204 N City of Berkeley 2SSO10096 N City of Emeryville 2SSO10133 N City of Piedmont 2SSO10166 Owned System Name WDID No Stege Sanitary District 2SSO10198 No City of Albany 2SSO10088 9 2 5 Y Y Other (specify below) No spills occurred in last 12 months. Other (specify below) No spills occurred in last 12 months. No spills occurred in last 12 months. No spills occurred in last 12 months. 2025 2SSO10131 2 616 24-MAR-26 Municipal(Public) 740000 0 7 2 2 0 0 0 0 0 0 NA 9 29 0 0 3 14 83 0 100 0 1 23 72 4 0 100 10 0 None 0 0 5 32 9 54 0 0 0 0 100 0 6 6 0 1 0 0 0 0 13 0 1 1 0 0 0 0 0 0 2 1 .4 2.4 2 019014001 EBMUD WPCP, 2020 Wake Avenue, Oakland, CA WWTP same agency Y N City of Alameda 2SSO10087 N City of Oakland 2SSO11204 N City of Berkeley 2SSO10096 N City of Emeryville 2SSO10133 N City of Piedmont 2SSO10166 Owned System Name WDID No Stege Sanitary District 2SSO10198 No City of Albany 2SSO10088 9 2 5 Y Y Other (specify below) No spills occurred in the last 12 months Other (specify below) No spills occurred in the last 12 months No spills occurred in the last 12 months No spills occurred in the last 12 months 2023 8SSO11146 8 616 04-DEC-25 Municipal(Public) 2409 0 7 1 0 5 1 1 0 0 1 None 1 8 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 8 362899001 CSA-70GH (Glen Helen), 18101 Institution Road, San Bernardino, CA 92407-1864 WWTP same agency N N None 0 0 0 N Y Debris from Lateral None Other (specify below) Laterals None None 2024 8SSO11146 8 616 04-DEC-25 Municipal(Public) 8902 7 7 1 0 5 2 1 0 0 0 None 0 0 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 8 362899001 18101 Institution Rd, San Bernardino, CA 92415 WWTP same agency N None 0 0 0 N Y Debris from Lateral None Other (specify below) Laterals and manholes None Regular cleaning and CCTV 2023 5SSO11007 5S 616 29-MAR-24 Municipal(Public) 2100 0 1 1 1 1 1 1 0 0 3 None 1 13 75 15 10 0 0 0 100 0 100 0 0 0 0 100 1150 0 None 0 0 0 25 75 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 2 0 13 13 5b050102001 Murphys WWTF, 735 Six Mile Road, Murphys, CA 95247 WWTP same agency N N None None N None None N None None N None None N None None None 5 1 0 Y Y Debris-General None Gravity Mainline None None 10 year CIP Collections system pipe upsizing and replacement. 2023 6SSO11147 6B 616 26-MAR-24 Municipal(Public) 987 0 1 1 1 0 0 0 0 0 0 n/a 1 12 14 85 1 0 0 0 100 63 37 0 0 0 0 100 546 1 None 0 0 0 35 65 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 3 3 6B140109001 Hilton Creek CSD Package STP, 3222 Crowley Lake Drive, Crowley Lake, CA 93546 WWTP same agency N n/a 23 2 0 Y Y Other (specify below) No Spills in reporting year Other (specify below) No Failures in reporting year none When system deficiencies are discovered, they are addressed. 2024 6SSO11147 6B 616 01-APR-25 Municipal(Public) 1114 0 1 1 1 0 0 0 0 0 0 n/a 1 12 14 85 1 0 0 0 100 63 37 0 0 0 0 100 548 1 None 0 0 0 35 65 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1.3 1.2 6B140109001 Hilton Creek CSD Package STP, 3222 Crowley Lake Drive, Crowley Lake, CA 93546 WWTP same agency N 23 2 0 Y Y Other (specify below) No Spills in 2024 Other (specify below) No Failures in 2024 None Routine Maintenance, Clean and Camera 2023 2SSO10133 2 616 27-MAR-24 Municipal(Public) 12902 2 7 1 2 0 0 0 1 0 0 0 1 15 3 43 35 18 0 1 100 100 0 0 0 0 0 100 1100 24 Upper and Lower 12 2 17 61 8 12 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3 1 2 019014002 001-PIWWF, , CA WWTP same agency 2 019014002 001-PIWWF, , CA WWTP same agency 2 019014002 001-PIWWF, , CA WWTP same agency Y N City of Oakland NA 0 1 0 0 N Y Debris-wipes/Non-disposables 0 Gravity Mainline 0 none Structural deficiencies identified during CCTV Investigations are repaired as part of the City's Sanitary Sewer Rehabilitation program. 2024 2SSO10133 2 616 04-DEC-25 Municipal(Public) 13000 0 8 1 1 0 0 0 1 0 0 na .4 15 3 43 35 18 0 1 100 100 0 0 0 0 0 100 1100 0 None 0 2 17 61 8 12 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 100 0 1.5 1.5 2 019014001 EBMUD WPCP 2020 Wake Avenue, Oakland, CA WWTP other agency Y N City of Oakland 2 019183001 na 0 0 1 Y Y Debris-wipes/Non-disposables na Gravity Mainline na na Cleaning gravity main and CCTV inspection to review health of pipe, and determining whether any structural deficiencies exacerbated blockage. 2025 2SSO10133 2 616 24-MAR-26 Municipal(Public) 13000 0 8 1 1 0 0 0 0 0 0 na .4 15 3 43 35 18 0 1 100 100 0 0 0 0 0 100 1100 0 None 0 2 17 61 8 12 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 100 0 1.5 1.5 2 019014001 001-EBMUD, , CA WWTP other agency N N City of Oakland 2 019183001 na 0 0 1 Y Y Debris-wipes/Non-disposables na Gravity Mainline na na Cleaning gravity main and CCTV Inspection to review health of pipe, and determining whether any structural deficiencies exacerbated blockage. 2023 2SSO10134 2 616 02-APR-24 Municipal(Public) 120000 8 15 2 1 6 11 5 0 0 0 N/A 0 280 4 88 8 0 0 0 0 0 0 0 0 0 0 0 32000 30000 Lower only 181 10 30 35 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 133 50 2SSO10146 Fairfield Suisun Sewer District 1010 Chadborne Rd FF CA WWTP other agency N N N/A 0 0 2 Y Y Fats, Oil and Grease (FOG) N/A Lower Lateral NO The city has an aggressive lower lateral program for mechanically cleaning lower laterals to avoid SSS. The city also has a main line PM program and has identified hot spots that are cleaned 3 times annually. 2024 2SSO10134 2 616 10-DEC-25 Municipal(Public) 122000 4 19 2 1 4 18 5 0 0 0 N/A 0 290 4 88 8 0 0 0 0 0 0 0 0 0 0 0 33000 30000 Lower only 187 12 30 35 23 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96 71 2SSO10136 Fairfield Suisun Sewer District 1010 Chadborne Rd Fairfield CA WWTP other agency N N/A 0 0 2 Y Y Root Intrusion N/A Lower Lateral N/A No, ongoing spill investigations City of Fairfield has an ongoing aggressive approach to root intrusion into lower laterals. We mechanically remove the roots at minimum quarterly. Before the mechanical removal we CCTV the lateral and evaluate if the frequencies need to be adjusted. We have identified the area of town with lower lateral issues and have developed a 5-year CIP program to replace the main line, manholes and lower laterals 2025 2SSO10134 2 616 01-APR-26 Municipal(Public) 120000 8 13 3 1 4 9 6 0 0 0 N/A 0 281 2 89 8 0 0 1 100 0 0 0 0 0 0 0 32402 30402 Lower only 172.7 3 14 54 24 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 94.2 83.2 2SSO10136 Fairfield Suisun Sewer District 1010 Chadborne Rd, Fairfield, CA 94533 WWTP other agency N N/A 23 0 2 Y Y Root Intrusion N/A Lower Lateral N/A None. City of Fairfield has an ongoing aggressive approach to root intrusion into lower laterals. We mechanically remove the roots at minimum quarterly. Before the mechanical removal we CCTV the lateral and evaluate if the frequencies need to be adjusted. We have identified the area of town with lower lateral issues and have developed a 5-year CIP program to replace the main line, manholes and lower laterals 2023 5SSO11008 5S 616 21-DEC-25 Municipal(Public) 650 0 0 0 0 0 0 0 0 0 0 The facility has zero employees. Management and administration is supplied by Napa County Department of Public Works and certified operators are supplied through contract with private firm. 1 7 39 61 0 0 0 0 100 100 0 0 0 0 0 100 552 552 Lower only 2 0 0 0 100 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 33 0 0 67 0 0 0 0 0 100 0 0 0 5A280103002 Napa Berryessa WTF, 1465 Steele Canyon Road, Napa, CA 94558 WWTP same agency N 0 0 0 N Y Root Intrusion Pump Station - Power None Lift stations are equipped with generators in the event power quality from PGE falls below standards. 2024 5SSO11008 5S 616 21-DEC-25 Municipal(Public) 650 0 0 0 0 0 0 0 0 0 0 The facility has zero employees. Management and administration is supplied by Napa County Department of Public Works and certified operators are supplied through contract with private firm. 1 7 39 61 0 0 0 0 100 100 0 0 0 0 0 100 552 552 Lower only 2 0 0 0 100 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 33 0 0 67 0 0 0 0 0 100 0 0 0 5A280103002 Napa Berryessa WTF, 1465 Steele Canyon Road, Napa, CA 94558 WWTP same agency N 0 0 0 N Y Root Intrusion Pump Station - Power None Lift stations are equipped with generators in the event power quality from PGE falls below standards. 2023 2SSO10088 2 616 22-JUL-24 Municipal(Public) 20000 2 4 0 2 1 0 0 0 0 0 0 33.7 16 47 34 2 1 0 100 0 0 0 0 0 0 0 4600 4600 Lower only 14 9 44 18 1 2 16 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.4 2.8 2 019014001 EBMUS WPCF, 2020 Wake Ave, Oakland, CA WWTP other agency Y N City of Berkeley Collection System 2SSO10096 22 0 0 Y Fats, Oil and Grease (FOG) Lower Lateral None The City has a comprehensive maintenance and rehabilitation program (per consent decree) that specifies requirements for inspection, cleaning and rehabilitation. With this program, the City has been and will continue to systematically address the system's deficiencies. 2024 2SSO10088 2 616 07-MAY-25 Municipal(Public) 20000 3 4 0 2 0 0 0 0 0 0 0 33.7 16 47 34 2 1 0 100 0 0 0 0 0 0 0 4600 4600 Lower only 14 9 44 18 1 2 16 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46526 16849 2 019014001 001-EBMUD, , CA WWTP other agency Y N City of Berkeley 2SSO10096 22 0 0 Y Fats, Oil and Grease (FOG) Lower Lateral None The City has a comprehensive maintenance and rehabilitation program (per consent decree) that specifies requirements for inspection, cleaning and rehabilitation. With this program, the City has been and will continue to systematically address the system's deficiencies. 2025 2SSO10088 2 616 01-APR-26 Municipal(Public) 20000 1 6 0 3 0 0 0 0 0 0 N/A 0 33.3 12 65 20 2 1 0 100 0 0 0 0 0 0 0 4600 4600 Lower only 14 18 46 22 0 1 6 5 0 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8.7 3.8 2 019014001 001-EBMUD, , CA WWTP other agency Y N City of Berkeley 2SSO10096 N/A 22 0 0 Y Fats, Oil and Grease (FOG) N/A Lower Lateral N/A None The City has a comprehensive maintenance and rehabilitation program (per consent decree) that specifies requirements for inspection, cleaning and rehabilitation. With this program, the City has been and will continue to systematically address the system's deficiencies. 2023 2SSO10135 2 616 02-APR-24 Municipal(Public) 37200 2 4 2 1 4 2 1 0 0 7 3 63 63 30 6 1 0 0 100 21 8 43 28 0 0 100 7037 0 None 0 1 1 18 77 0 0 0 0 3 100 0 6 0 0 0 0 0 0 0 6 0 35 8 0 0 0 0 0 0 43 0 63 5 2sso10135 Foster City CS, 610 Foster City Boulevard, Foster City, CA 94404 WWTP other agency N 0 0 3 0 N Y Pump Station Failure - Power Breaker for Pump failed. Station could not keep up with demand without the pump. Pump Station - Power 0 Pump breaker was replaced 2024 2SSO10135 2 616 28-JAN-25 Municipal(Public) 37200 2 4 2 1 5 2 1 0 0 0 3 63 63 30 6 1 0 0 100 21 8 43 28 0 0 100 7037 0 None 0 1 1 18 77 0 0 0 0 3 100 0 6 0 0 0 0 0 0 0 6 0 35 8 0 0 0 0 0 0 43 0 63 .1 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency N 0 3 0 Y Y Pump Station Failure - Controls PLC failure Pump Station - Controls PLC failure 0 Installed new UPS and PLC 2025 2SSO10135 2 616 10-MAR-26 Municipal(Public) 37200 2 4 2 1 5 2 1 0 0 0 3 63 63 30 6 1 0 0 100 21 8 43 28 0 0 100 7037 0 None 0 1 1 18 77 0 0 0 0 3 100 0 6 0 0 0 0 0 0 0 6 0 35 8 0 0 0 0 0 0 43 0 63 1 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency N 0 3 0 Y Y Pipe Structural Problem/Failure - Controls Force Main none FM replaced at break. 2023 6SSO11151 6B 616 03-JUL-24 Municipal(Public) 611 4 2 1 1 0 0 0 0 0 1 We are contracted with a CPO grade level V 7 5 17 55 10 0 0 0 87 0 3 15 0 0 0 18 650 0 None 0 0 0 0 25 0 0 0 0 75 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 2 2 6B260101002 June Lake PUD STP, 45125 Highway 395 , June Lake, CA 93529 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 2 0 0 N Y Debris-General NA Manhole NA NA Starting slip lining of gravity sewer mains, upgraded pumps at 2 lift stations. 2025 6SSO11151 6B 616 08-APR-26 Municipal(Public) 611 1 3 1 1 0 0 0 0 0 1 We are contracted with a CPO Grade V 7 5 17 55 10 0 0 0 82 0 3 15 0 0 0 18 650 0 None 0 0 0 0 25 0 0 0 0 75 100 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 29 0 7 4 0 6B260101002 June Lake PUD STP, 45125 Highway 395 , June Lake, CA 93529 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 2 0 0 N Y Root Intrusion N/A Pump Station - Controls N/A N/A In process of replacing pumps and upgrading infrastructure. 2023 2SSO10136 2 616 04-APR-24 Municipal(Public) 140000 4 17 4 2 3 7 5 5 0 3 n/a 9 71 0 0 55 36 9 0 100 10 5 25 45 15 0 100 906 0 None 0 2 9 38 44 7 0 0 0 0 100 1 0 5 2 0 0 0 0 0 8 0 2 3 0 0 0 0 0 0 5 1 24 24 2 482005001 Fairfield-Suisun Discharge Point 001, , CA WWTP same agency N N City of Fairfield 2sso10134 N City of Suisun City 2sso10199 n/a 18 2 20 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure n/a Air Relief Valve (ARV)/ Blow-Off Valve (BOV) n/a none Immediate needs (mainly manhole work) were corrected by District staff or contractor. Other low-priority findings have been incorporated into Collection System CIP projects (managed by Engineering) to be executed in coming years, prioritized by need and criticality. 2024 2SSO10136 2 616 31-MAR-25 Municipal(Public) 150000 1 32 3 2 2 6 8 4 0 0 N/A 15.3 71.4 0 0 55 37 8 0 100 9 5 27 44 15 0 100 906 0 None 0 2 13 37 42 6 0 0 0 0 100 1 0 4 4 0 0 0 0 0 9 0 2 2 1 0 0 0 0 0 5 1 14.8 14.8 2 482005001 Fairfield-Suisun Discharge Point 001, , CA WWTP same agency Y N City of Fairfield 2SSO10134 N City of Suisun City 2SSO10199 N/A 16 18 17 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A None Completed study of hydraulic grade line in forcemain to confirm operational limits when grade line is above the elevation of the ARV but below the seating pressure of the ARV. Addition of secondary containment to capture leakage from ARV when the forcemain operates in the very narrow pressure range that would allow leakage from the ARV. 2025 2SSO10136 2 616 25-MAR-26 Municipal(Public) 150000 2 33 4 2 3 4 7 7 0 0 N/A 15.3 71.4 0 0 55 37 8 0 100 9 5 27 44 15 0 100 906 0 None 0 2 13 37 42 0 0 0 0 0 100 1 0 4 4 9 0 0 0 0 9 0 2 2 1 9 0 0 0 0 5 1 14.8 14.8 2 482005001 Fairfield-Suisun Discharge Point 001, , CA WWTP same agency Y N City of Fairfield 2SSO10134 N City of Suisun City 2SSO10199 N/A 16 18 17 Y Y Other (specify below) There were no major spills in 2025. One minor spill was caused by grease at an air release valve. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A None The District has ongoing weekly, monthly, and semi-annual ARV maintenance to prevent ARV failures. Additional provisions and improvements to leakage containment is being implemented as needed. Staff is also developing new outreach material for food service establishments on proper FOG management. 2023 6SSO11152 6B 616 13-MAR-24 Municipal(Public) 14000 8 14 3 1 11 4 6 7 0 0 N/A 5 198 21 69 7 3 0 0 100 49 2 49 0 0 0 100 10718 0 None 0 1 4 20 50 20 5 0 0 0 100 0 0 4 0 0 0 0 0 0 4 0 0 2 14 1 0 0 0 0 17 0 17 51 6B360107001 27000 Pilot Rock Road Lake Arrowhead, CA 92352 SSS same agency N N/A N/A N/A 49 2 3 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline N/A None at this time Comprehensive budget allocating funds for collection system improvements annually. 2024 6SSO11152 6B 616 04-DEC-25 Municipal(Public) 14000 0 5 3 1 9 10 6 7 0 0 5 198 21 69 7 3 0 0 100 49 2 49 0 0 0 100 10718 0 None 0 1 4 20 50 20 5 0 0 0 100 0 0 4 0 0 0 0 0 0 4 0 0 2 14 1 0 0 0 0 17 0 15 50 6B360107001 2700 Pilot Rock Road Lake arrowhead, CA 92352 SSS same agency N N/A N/A 49 2 3 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline N/A Not At this Time Comprehensive Budget allocating funds for collection system improvements annually. 2025 6SSO11152 6B 616 16-MAR-26 Municipal(Public) 14000 0 5 3 1 9 10 6 7 0 0 5 198 21 69 7 3 0 0 100 49 2 49 0 0 0 100 10718 0 None 0 1 4 20 50 20 5 0 0 0 100 0 0 4 0 0 0 0 0 0 4 0 0 2 14 1 0 0 0 0 17 0 15.4 40.2 6B360107001 2700 Pilot Rock Road Lake arrowhead, CA 92352 SSS same agency N N/A n/a 49 2 3 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline N/A We currently have no ongoing investigations. Comprehensive Budget allocating funds for collection system improvements annually. 2023 2SSO10138 2 616 04-APR-24 Municipal(Public) 7100 1 0 1 1 0 0 0 0 0 0 Sewer Authority Mid-Coastside (SAM) provides cleaning and spill emergency response to the District. SAM provides all staff and completes work under supervision of the GCSD staff listed above. 1 35 57 18 20 0 0 5 100 100 0 0 0 0 0 100 2622 0 Lower only 0 10 0 23 56 0 0 0 0 11 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 34 3 2SSO10175 Sam CS, 1000 North Cabrillo Highway, Half Moon Bay, CA 94019 WWTP other agency N N NA NA NA 0 0 0 Y Y Root Intrusion NA Gravity Mainline NA None 5f. District only maintains lower lateral if a conforming cleanout and District-approved lateral pipeline has been installed and inspected. 2024 2SSO10138 2 616 03-OCT-25 Municipal(Public) 7100 1 0 1 1 0 0 0 0 0 0 Sewer Authority Mid-Coastside (SAM) provides cleaning and spill emergency response to the District. SAM provides all staff and completes work under supervision of the GCSD staff listed above. 1 35 57 18 20 0 0 5 100 100 0 0 0 0 0 100 2635 0 Lower only 0 10 0 23 56 0 0 0 0 11 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 26.8 3 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP other agency N N NA NA NA 0 0 0 Y Other (specify below) Nothing to report for 2024. Other (specify below) Nothing to report for 2024. NA Continued cleaning, inspection, and maintenance of system. Capital improvement pipe replacement ongoing based on inspections and age of pipes. 2025 2SSO10138 2 616 30-MAR-26 Municipal(Public) 7100 1 0 1 1 0 0 0 0 0 0 Sewer Authority Mid-Coastside (SAM) provides cleaning and spill emergency response to the District. SAM provides all staff and completes work under supervision of the GCSD staff listed above. 1 35 57 18 20 0 0 5 100 100 0 0 0 0 0 100 2640 0 None 0 3 8 24 57 0 1 0 0 7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 17.5 3 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP other agency N NA 0 0 0 Y Y Other (specify below) Nothing to report for 2025. Other (specify below) Nothing to report for 2025. Nothing to report for 2025. Continued cleaning, inspection, and maintenance of system. Capital improvement pipe replacement ongoing based on inspections and age of pipes. 2023 2SSO10090 2 616 02-APR-24 Municipal(Public) 1200 0 0 0 1 0 0 0 0 0 0 The Alto Sanitary District contracts with Nute Engineering of San Rafael CA for design and inspection oversight, and Roto-Rooter of Novato CA for maintenance services. 0 3 78 22 0 0 0 0 100 0 0 0 0 0 0 0 572 0 None 0 10 73 12 0 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 2SSO10188 Sasm CS, 26 Corte Madera Avenue, Mill Valley, CA 94941 WWTP other agency N N/A 0 0 0 Y Y Debris from Lateral Upper Lateral None Ongoing Capital Improvement Projects to replace mains as needed and to inspect all lateral connections. 2023 5SSO11011 5S 616 22-AUG-24 Municipal(Public) 3149 3 2 1 2 0 1 0 0 0 1 .. 0 27 52 25 22 0 0 0 0 0 0 0 0 0 0 0 1380 14 None .2 1 11 11 12 15 15 15 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 244141 650 Jordan Nevada City, CA, 95959 WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline none Implementation of FOG Program 2024 5SSO11011 5S 616 05-SEP-25 Municipal(Public) 3149 3 2 1 2 0 1 0 0 0 1 - 0 27 52 25 22 0 0 0 0 0 0 0 0 0 0 0 1380 14 None .2 1 11 11 12 15 15 15 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 9 5A290101001 001, , Nevada City, CA WWTP same agency N 3 0 0 N Y Root Intrusion Gravity Mainline none regular cleaning and jetting 2025 5SSO11011 5S 616 24-FEB-26 Municipal(Public) 3149 3 2 1 2 0 1 0 0 0 1 - 0 27 53 25 22 0 0 0 100 0 0 0 0 0 0 0 1380 14 None .2 1 11 11 12 15 15 15 20 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 244141 650 Jordan Street, Nevada City CA 95959 WWTP same agency N 3 0 0 N Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a none implementation of FOG Program 2023 2SSO10139 2 616 16-APR-24 Municipal(Public) 8000 0 0 0 1 0 0 0 0 0 0 The City contracts with Sewer Authority Mid-Coastside (SAM) for sewer system cleaning, pump station cleaning and maintenance, and spill response. Please see SAM entries for the number of and certifications held by their sewer maintenance staff. 1 35 44 46 4 6 0 0 100 100 0 0 0 0 0 100 3000 0 None 0 6 2 39 38 10 5 0 0 0 100 1 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 1 0 24 1 2SSO10175 Sam CS, 1000 North Cabrillo Highway, Half Moon Bay, CA 94019 WWTP other agency N 3 0 5 Y Y Flow Exceeded Capacity (Separate Collection System Only) N/A Manhole N/A N/A Wet weather spills occurred during extreme wet weather events in Jan 2023 ** Please note that the CIWQS website was unavailable on April 1, 2024. Therefore, the City respectfully submits this report on the first available date of April 2, 2024. 2024 2SSO10139 2 616 01-APR-25 Municipal(Public) 13000 1 11 1 2 5 4 2 0 0 0 All staff listed above are employees of Sewer Authority Midcoast (WDID 2SSO10175) under contract to provide sanitary system management via Joint Powers Authority. City of Half Moon Bay also employs (2) managerial wastewater support staff, uncertified. 1.5 35 43 44 11 1 0 1 100 100 0 0 0 0 0 100 3300 0 None 0 1 3 6 16 12 1 0 0 61 100 1 1 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 1.5 23.8 0 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP other agency N 5 0 2 N Y Other (specify below) Nothing to report for 2024 Other (specify below) Nothing to report for 2024 None Continuing to clean and maintain sewer system via contractor (Sewer Authority Midcoast), and to budget for and implement planned CIP projects. 2025 2SSO10139 2 616 30-MAR-26 Municipal(Public) 13000 1 11 1 2 5 4 2 0 0 0 All staff listed above are employees of Sewer Authority Midcoast (WDID 2SSO10175) under contract to provide sanitary system management via Joint Powers Authority. City of Half Moon Bay also employs (2) managerial wastewater support staff, uncertified. 1.5 35 43 44 11 1 0 1 100 100 0 0 0 0 0 100 3300 0 None 0 1 3 6 16 12 1 0 0 61 100 1 1 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 1.5 22.1 1 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP other agency N 5 0 2 N Y Other (specify below) None to report for 2025 Other (specify below) None to report for 2025 None Continuing to clean and maintain sewer system via contractor (Sewer Authority Midcoast), and to budget for and implement planned CIP projects. 2023 6SSO20014 6B 616 20-SEP-23 398 2 0 1 0 1 0 1 0 0 0 0 0 3 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 20 40 40 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 6SS011154 LAHONTAN N N N N N N 0 0 0 N Y none none none none 2023 2SSO10091 2 616 18-MAR-24 Municipal(Public) 21837 1 2 1 1 0 2 0 1 0 0 1 Pesticide applicator license (QAC) 5 62 18 56 25 1 0 0 100 13 1 86 0 0 0 100 5042 5042 Lower only 22 9 45 28 18 0 0 0 0 0 100 1 0 0 1 0 0 0 0 0 100 1 2 1 0 0 0 0 0 0 100 2 12 3 2SSO10091 American Canyon, Public Works CS, 205 Wetlands Edge Road, American Canyon, CA 94503 WWTP same agency N N/A 9 2 0 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A No major spills in 2023. Regular cleaning of the sewer system and inspections to prevent spills. CIPs and property development is currently slated in 2024 to replace a large portion of our old sewer mains. 2024 2SSO10091 2 616 03-MAR-25 Municipal(Public) 21837 2 2 1 1 5 2 2 1 0 0 1 Pesticide applicator license (QAC) 5 62 18 56 25 1 0 0 100 13 1 86 0 0 0 100 5042 5042 Lower only 22 9 45 28 18 0 0 0 0 0 100 1 0 0 1 0 0 0 0 0 100 1 2 1 0 0 0 0 0 0 100 2 26.7 6.8 283021001 American Canyon Water Reclamation Facility (WRF) (formerly WWTP), 151 Mezzetta Court, American Canyon, CA 94503 WWTP same agency N N/A 9 2 0 Y Y Fats, Oil and Grease (FOG) Equal to FOG, we had roots and debris, wipes, rags that contributed to the cause of our spills. Gravity Mainline N/A No ongoing investigations, spill causes were determined and mitigated. We only had 3 category 3 spills all of last year, causes were determined. FOG outreach and inspections are ongoing throughout the city. Continued monitoring, regular cleaning, CCTV inspections, as well as FOG outreach and inspections in specific areas whenever we notice it. Problem areas are also put on our hotspot check list and checked weekly. CIPs are also in various phases in older areas. One of our spill locations (Los Altos and Carolyn), will have the entire neighborhood CIPP lined this year(2025). The other two spill locations were in newer areas with no system deficiencies but caused by FOG, rags, wipes and one had roots that has been removed. 2025 2SSO10091 2 616 19-MAR-26 Municipal(Public) 21837 2 6 1 1 6 2 1 1 0 0 N/A 5 62 18 56 25 1 0 0 100 13 1 86 0 0 0 100 5042 5042 Lower only 22 9 45 28 18 0 0 0 0 0 100 1 0 0 1 0 0 0 0 0 100 1 2 1 0 0 0 0 0 0 100 2 19 3 283021001 American Canyon Water Reclamation Facility (WRF) (formerly WWTP), 151 Mezzetta Court, American Canyon, CA 94503 WWTP same agency N N/A 9 2 0 Y Y Root Intrusion FOG was also a contributor to our spills with one or the 3 spills caused by FOG. Gravity Mainline N/A No ongoing investigations, spill causes were determined and mitigated. We only had 3 small spills all of last year, 2 lateral and 1 category 3. Causes were determined to be root intrusion and FOG. FOG outreach, inspections and cleaning are regularly scheduled. Continued monitoring, regularly scheduled cleaning and CCTV inspections, as well as FOG outreach and inspections in specific areas whenever we notice it. Problem areas are also put on our hotspot check list and checked weekly, as well as increased inspections of problem areas. CIPs are also in various phases in older areas. A large CIP was completed in the Rancho Del Mar area, where multiple streets were CIPP lined. Reference the city website, Americancanyon.gov for CIP info and SSMP. 2023 5SSO11012 5S 616 30-DEC-25 Park (w/Campground) 1860 1 3 1 0 0 0 0 0 0 0 Wastewater Operator Exemption 1 1 48 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 0 0 0 0 5B051027001 New Hogan Lake Recreational Areas, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency 5SSO11012 New Hogan Lake CS, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency N 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 5SSO11012 5S 616 30-DEC-25 Park (w/Campground) 1860 1 3 1 0 0 0 0 0 0 0 Wastewater Operator Exemption 1 1 48 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 None 0 0 0 48 0 0 0 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5SSO11012 New Hogan Lake, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency 5B051027001 New Hogan Lake Recreational Areas, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency N 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 5SSO11012 5S 616 11-MAR-26 Park (w/Campground) 1860 1 3 1 0 0 0 0 0 0 0 Wastewater Operator exemption. 1 1 48 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 0 0 0 0 5SSO11012 New Hogan Lake, CS, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency 5B051027001 New Hogan Lake Recreational Areas, 2713 Hogan Dam Road, Valley Springs, CA 95252 SSS same agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 2SSO10140 2 616 29-MAR-24 Municipal(Public) 162954 3 15 2 1 4 4 2 2 0 13 N/A 4 308 5 76 12 6 1 0 100 16 0 32 52 0 0 100 35151 0 None 0 0 10 14 30 42 2 0 0 2 100 0 1 2 0 0 0 0 0 0 3 0 1 2 3 0 0 0 0 0 6 0 275 50 2SSO10140 Water Pollution Control Facility, 24401 Whitesell Road, Hayward, CA 94545 WWTP same agency N N N/A 43 3 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 2SSO10140 2 616 30-MAR-26 Municipal(Public) 158440 0 17 0 2 2 4 1 2 0 15 N/A 4 322 5 76 12 6 1 0 100 16 0 32 52 0 0 100 34266 0 None 0 0 10 14 30 42 2 0 0 2 100 0 1 2 0 0 0 0 0 0 3 0 1 2 3 0 0 0 0 0 6 0 265 45.8 2 019022001 Hayward WRRF, 3700 Enterprise , Hayward, CA 94545 WWTP same agency N N N/A N/A N/A 43 3 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 6SSO11155 6B 616 31-DEC-25 Municipal(Public) 2000 2 0 1 1 0 0 1 0 0 0 Na 0 12 60 30 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 90 0 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 1 6SSO11155 Lone pine csd WWTP same agency N N Na 0 0 0 N Y Other (specify below) None Other (specify below) None Na None 2024 6SSO11155 6B 616 07-JAN-26 Municipal(Public) 2000 2 0 1 1 0 0 1 0 0 0 0 0 12 60 30 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 90 0 10 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 6 2 6B140104001 Lone Pine WWTF, PO Box 36 , Lone Pine, CA 93545 WWTP same agency N N Na 0 0 0 N Other (specify below) None Other (specify below) Na None None 2025 6SSO11155 6B 616 14-MAR-26 Municipal(Public) 2000 0 2 0 1 0 2 0 0 0 1 0 0 15 60 30 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 90 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 6B140104001 Lone Pine WWTF, PO Box 36 , Lone Pine, CA 93545 WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None Modernization of equipment and back up power source. 2023 2SSO10092 2 616 29-MAR-24 Municipal(Public) 30 0 2 1 0 0 0 0 0 0 0 CA SWRCB Wastewater Treatment Plant operator certification 5 2 100 0 0 0 0 0 5 100 0 0 0 0 0 0 232 23 Upper and Lower 2 0 0 100 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 2 100 0 0 0 0 0 0 2 0 0 0 2SSO10092 Angel Island State Park CS, P.O. Box 318 , Tiburon, CA 94920 WWTP same agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power 0 SECURE STANDY EMERGENCY GENERATORS TO MAINTAIN OPERATIONAL STATUS DURING EXTENDED, FREQUENT PG&E POWER OUTAGES 2024 2SSO10092 2 616 29-MAR-26 Municipal(Public) 30 0 2 1 0 0 0 0 0 0 0 5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 232 23 Upper and Lower 2 0 0 100 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 2 100 0 0 0 0 0 0 2 0 0 0 2SSO10092 Angel Island State Park CS, PO Box 318 Tiburon, CA 94920 WWTP same agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power N/A NO SECURE STANDBY EMERGENCY GENERATORS TO MAINTAIN OPERATIONAL STATUS DURING EXTENDED, FREQUENT PG&E POWER OUTAGES 2025 2SSO10092 2 616 29-MAR-26 Municipal(Public) 30 1 1 0 0 0 0 0 0 0 0 CA SWRCB Wastewater Treatment Plant operator certification 5 2 100 0 0 0 0 0 0 100 0 0 0 0 0 0 232 23 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 7 0 0 0 2SSO10092 Angel Island State Park CS, P.O. Box 318 , Tiburon, CA 94920 WWTP same agency N 0 0 0 Pump Station Failure - Power Pump Station - Power no no 2023 2SSO10141 2 616 18-DEC-25 Municipal(Public) 26016 2 5 1 2 0 0 0 0 0 0 Public Works Director is a Registered Civil Engineer 1.3 62.1 3 87 7 3 0 0 100 0 20 0 80 0 0 100 8416 8 None 1 0 40 0 60 0 0 0 0 0 100 0 3 3 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 2 2 2 071032001 001 - Pinole, , CA WWTP same agency N 0 15 2 1 N Y Other (specify below) N/A Other (specify below) N/A N/A Design work for lower Sycamore underway 2024 2SSO10141 2 616 18-DEC-25 Municipal(Public) 26016 2 5 1 2 0 0 0 0 0 0 Public Works Director is a Registered Civil Engineer 1.3 62.1 3 87 7 3 0 0 100 0 20 0 80 0 0 100 8432 8 None 1 0 40 0 60 0 0 0 0 0 100 0 3 3 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 2 2 2 071032001 001 - Pinole, , CA WWTP same agency N 15 2 1 N Y Other (specify below) N/A Other (specify below) N/A N/A Construction of Lower Sycamore Trunk Sewer underway 2025 2SSO10141 2 616 30-MAR-26 Municipal(Public) 26499 2 5 1 2 0 0 0 0 0 0 Public Works Director is a Registered Civil Engineer 1.3 62.1 3 87 7 3 0 0 100 0 20 0 80 0 0 100 8433 8 None 1 0 40 0 60 0 0 0 0 0 100 0 3 3 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 2 2 2 071032001 001 - Pinole, , CA WWTP same agency N 15 2 1 Y Y Other (specify below) N/A Other (specify below) N/A N/A Construction of Lower Sycamore Trunk Sewer completed June 2025. SSMP revision underway with completion anticipated on or before June 2026. 2023 2SSO10142 2 616 02-APR-24 Municipal(Public) 11387 1 5 1 1 1 3 1 1 0 0 Outside of the current staff assigned to the collection system maintenance, we have the following additional CWEA certified staff for cross training. Grade 1 - 4 staff members Grade 2 - 5 staff members Grade 3 - 1 staff member 1 93 74 13 10 3 0 0 100 50 0 50 0 0 0 100 3029 10 Upper and Lower 1 4 26 35 20 11 3 1 0 0 100 0 0 1 0 0 0 0 0 0 1 3 0 0 2 0 0 0 0 0 5 0 209131 15000 2sso10099 Burlingame City CS, 501 Primrose Road, Burlingame, CA 94010 SSS other agency 2sso10183 Crystal Springs CSD CS, , CA SSS other agency N N City of San Mateo 2sso10183 N CSCSD 2sso10225 N County of San Mateo 2sso10224 N/A 160 0 2 Y Y Root Intrusion N/A Gravity Mainline N/A N/A CIP Annual Pipe Replacement 2024 2SSO10142 2 616 29-DEC-25 Municipal(Public) 11387 3 4 1 1 3 3 0 2 0 0 Outside of the current staff assigned to the collections system maintenance, we have the following additional CWEA certified staff for cross-training. Grade 1 - 4 staff members Grade 2 - 4 staff members Grade 3 - 1 staff member Grade 4 - 1 staff member Total of 10 additional staff members with CWEA certifications not assigned to collections. .6 97 74 17 5 4 0 0 100 50 0 50 0 0 0 100 3029 10 Upper and Lower 1 4 26 35 20 11 3 1 0 0 100 0 0 1 0 0 0 0 0 0 1 3 0 0 2 0 0 0 0 0 5 0 41 2 2sso10183 City of San Mateo, 2050 Detroit Dr, San Mateo, CA 94404 WWTP other agency 2sso10099 (City of Burlingame) Veolia Water North America: 1103 Airport Blvd., Burlingame, CA 94010 WWTP other agency Y N City of San Mateo 2sso10183 N Crystal Springs CSD 2sso10225 N County of San Mateo 2sso10224 N/A 160 0 2 N Y Root Intrusion N/A Gravity Mainline N/A N/A CIP Annual Pipe Replacement 2025 2SSO10142 2 616 02-APR-26 Municipal(Public) 11122 3 4 1 1 3 3 0 2 0 0 Outside of the current staff assigned to the collections system maintenance, we have the following additional CWEA certified staff for cross-training. Grade 1: 4 staff members Grade 2: 4 staff members Grade 3: 1 staff member Grade 4: 1 staff member Total of 10 additional staff members with CWEA certifications not assigned to collections. .6 97 74 17 5 4 0 0 100 50 0 50 0 0 0 100 3029 10 Upper and Lower 1 4 26 35 20 74 3 1 0 0 100 0 0 1 0 1 0 0 0 0 1 3 0 0 2 0 0 0 0 0 5 0 39.9 .9 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency 2sso10099 (City of Burlingame) Veolia Water North America, 1103 Airport Blvd., Burlingame, CA 94010 WWTP other agency Y N City of San Mateo 2sso10183 N Crystal Springs CSD 2sso10225 N County of San Mateo 2sso10224 N/A 160 0 2 Y Y Root Intrusion N/A Gravity Mainline N/A N/A CIP Annual Pipe Replacement 2023 2SSO10093 2 616 26-MAR-24 Municipal(Public) 6900 0 0 0 0 0 0 0 1 0 0 1 11 17 70 10 3 0 0 100 0 0 100 0 0 0 100 1717 0 None 0 3 4 80 10 3 0 0 0 0 100 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 3 2 386010001 San Francisco City and County Jail in San Bruno, 4100 Susan Drive, San Bruno, CA SSS same agency N 0 0 0 N Y Other (specify below) There were no spills in 2023 Other (specify below) There were no spills in 2023 nor failure points identified None - there were no spills in 2023 None - there were no deficiencies identified 2024 2SSO10093 2 616 22-MAR-25 Municipal(Public) 6900 0 0 0 0 0 0 0 1 0 0 n/a .6 10 17 70 10 3 0 0 100 0 0 100 0 0 0 100 1800 0 None 0 3 4 80 10 3 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5 2 2 386010001 San Francisco City and County Jail in San Bruno, 4100 Susan Drive, San Bruno, CA SSS same agency N 0 0 0 N Y Other (specify below) There were no mainline spills in 2024 Other (specify below) There were no spills in 2024 nor failure points identified None - there were no spills in 2024 None - there were no deficiencies identified 2025 2SSO10093 2 616 01-APR-26 Municipal(Public) 6900 0 0 0 0 0 0 0 1 0 0 n/a 0 10 17 70 10 3 0 0 100 0 0 100 0 0 0 100 1800 0 None 0 0 4 80 10 3 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5 2 2 386010001 San Francisco City and County Jail in San Bruno, 4100 Susan Drive, San Bruno, CA SSS same agency N n/a 0 0 0 N Y Other (specify below) There were no mainline spills in 2025 Other (specify below) There were no spills in 2025 nor failure points identified None - there were no spills in 2025 None - there were no deficiencies identified 2023 6SSO11157 6B 616 19-MAR-24 Municipal(Public) 8000 1 7 3 1 2 4 4 0 0 10 3 78 13 67 13 7 0 0 100 3 1 0 0 0 0 4 4399 4399 Lower only 12 2 40 18 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 11 0 0 0 0 0 12 10 16 10 6SSO11157 1829 Old Mammoth road Mammoth lakes California 93546, , CA WWTP same agency N None 5 1 0 Y Y Debris from Construction None in last year Gravity Mainline Laterals None Video Inspections, Rodding and Cleaning, Slip Lining, Top Hats, Patches, Chemical Grouting, Manhole Spraying, Manhole Rechanneling, and dig to repair. Pump Station MCC/pump upgrades. 2024 6SSO11157 6B 616 17-NOV-25 Municipal(Public) 8000 3 5 3 1 0 3 4 0 0 7 NA 3 79 13 67 13 7 0 0 100 75 25 0 0 0 0 4 4393 4393 Lower only 12 2 40 18 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 11 0 0 0 0 0 12 10 19.9 13.3 6B260103001 1315 Meridian Blvd WWTP same agency N 5 1 0 N Y Debris-General Upper Lateral None Ongoing cleaning, trenchless repairs, and video surveillance efforts to identify problem areas. 2025 6SSO11157 6B 616 17-MAR-26 Municipal(Public) 8000 3 5 2 1 0 4 4 0 0 8 3 79 13 67 13 7 0 0 100 75 25 0 0 0 0 4 4393 4393 Lower only 12 2 40 18 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 11 0 0 0 0 0 12 10 19.6 12.1 6B260103001 Mammoth CWD STP, 1315 Meridian Boulevard, Mammoth Lakes, CA 93546 SSS same agency N 5 1 0 Y Y Debris-wipes/Non-disposables No major spills Gravity Mainline The only spill in 2025 was a class 4 from non disposable wipes None Sewer rehabilitation projects performed with in house repair crews and outside contractors. Maintenance cleaning and video inspections performed by in house crew. 2023 5SSO11014 5S 616 23-DEC-25 Municipal(Public) 300 1 6 1 1 1 2 0 0 0 3 .5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 94 94 Lower only 2000 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 .5 5SSO11497 10125 Flume St. North San Juan, CA 95960 WWTP same agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole None Routine Maintenance and pump rebuild at lift station. Replaced interior piping in the community septic tank. 2024 5SSO11014 5S 616 23-DEC-25 Municipal(Public) 300 1 6 1 1 1 2 0 0 0 3 .5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 94 94 Lower only .3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 2 0 5SSO11497 10125 Flume St. North San Juan, CA 95960 WWTP same agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole None Routine Maintenance and dig up and repair as any deficiencies are identified. Pump service and rebuild as necessary. 2025 5SSO11014 5S 616 01-APR-26 Municipal(Public) 300 1 6 1 1 1 2 0 0 0 3 .5 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 94 94 Lower only .3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 0 5SSO11497 10125 Flume St. North San Juan, CA 95960 WWTP same agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole none Roiutine Maintenance and dig up and repair as any deficiencies are identified. Pump service and rebuilds as necessary. 2023 2SSO10143 2 616 15-MAR-24 Municipal(Public) 2300 0 0 0 1 0 0 0 0 1 0 Manager holds a Grade V certificate in Wastewater Treatment. Grade V was issued in 1981. Has 50 yrs. plus a a certified operator 0 13 88 5 7 0 0 0 100 0 0 0 0 0 0 0 974 0 None 0 19 34 20 12 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 215015001 SASM WWTP Discharge Point 001, , Mill Valley, CA WWTP other agency N 3 0 0 Y Root Intrusion Typical stoppages caused by roots (either in our system or from private lateral cleaning, debris/wipes or grease Gravity Mainline none Continued replacement of VCP pipes with PE. We have only 15% of system that is clay pipe. We have an additional 5% scheduled for replacement this FY 2024 2SSO10143 2 616 12-MAR-25 Municipal(Public) 2300 0 0 0 1 0 0 0 0 1 0 Manager holds a Grade V Wastewater Treatment certificate, first issued in 1981. Has 50 plus years as a certified operator at WWTPs that also have collection systems. 0 13 88 5 7 0 0 0 100 0 0 0 0 0 0 0 974 0 None 0 24 34 20 12 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.7 5 2 215015001 SASM WWTP Discharge Point 001, , Mill Valley, CA WWTP other agency N 3 0 0 Y Y Other (specify below) Stoppages are caused by roots (either in our system or due to private lateral cleaning. Also due to debris/wipes, grease Gravity Mainline None Continued replacement of VCP pipe with PE. We have only 10% pf system that is VCP. The last 10% is scheduled for replacement in the next 2 years. 2025 2SSO10143 2 616 17-FEB-26 Municipal(Public) 2400 0 0 0 0 0 0 0 0 0 0 Manager holds Grade V WWTP operator certification since 1981. First certification 1974. Also has BA, MBA, and JD 0 12.7 98 1 1 0 0 0 100 0 0 0 0 0 0 0 978 0 None 0 40 39 15 5 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.8 1 37.8989885 450 Sycamore Avenue Mill Valley, CA 94941 WWTP other agency N 4 0 0 Y Y Debris from Lateral SSO tend to be debris, wipes, roots from lateral cleaning or FOG Other (specify below) District has replaced about 80% of the original VCP lines with PE. 98% is now plastic or PE. Nome Extensive pipe replacement program. 40% in last five years 2023 2SSO10094 2 616 29-MAR-24 Municipal(Public) 27000 4 8 2 1 1 2 2 3 0 0 N/A 3 80 78 12 7 3 0 0 100 24 20 56 0 0 0 100 7690 0 None 0 1 42 21 15 15 6 0 0 0 100 1 2 3 0 0 0 0 0 0 6 0 0 4 0 0 0 0 0 0 4 0 291126 53101 2 417037001 San Francisco Bay, , CA WWTP other agency N N/A 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Regular preventive maintenance, ongoing CCTV inspection of the system to determine deficiencies in the pipes, in-house Smoke Testing Program to investigate and liquidate causes of inflow and infiltration (I&I), Capital Improvement Program, regular review of the system through Master Planning, Sewer System Management Plan, and modeling of the system, public outreach to educate on FOG program and non-flushable wipes. 2024 2SSO10094 2 616 27-MAR-26 Municipal(Public) 27000 0 12 2 1 1 2 2 3 0 0 3 80 78 12 7 3 0 0 100 24 20 56 0 0 0 100 7692 0 None 0 1 42 21 15 15 6 0 0 0 100 1 2 3 0 0 0 0 0 0 6 0 0 4 0 0 0 0 0 0 4 0 51.5 23.9 2 417037001 SVCW, 1400 Radio Road, Redwood City, CA 94065-1220 WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline None Regular preventive maintenance, ongoing CCTV inspection of the system to determine deficiencies in the pipes, robust capital improvement program, regular review of the system through master planning, sewer system management plan, and modeling of the system, public outreach to educate on FOG issues and non-flushable wipes. 2025 2SSO10094 2 616 27-MAR-26 Municipal(Public) 27000 2 12 2 1 1 2 3 2 0 0 3 80 77 13 7 3 0 0 100 24 20 56 0 0 0 100 7693 0 None 0 2 42 21 15 15 5 0 0 0 100 1 2 3 0 0 0 0 0 0 6 0 0 4 0 0 0 0 0 0 4 0 21.3 24.3 2 417037001 SVCW, 1400 Radio Rd, Redwood City, CA 94065 WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline None Regular preventive maintenance, ongoing CCTV inspection of the system to determine deficiencies in the pipes, robust capital improvement program, regular review of the system through master planning, sewer system management plan, and modeling of the system, public outreach to educate on FOG issues and non-flushable wipes. 2025 6SSO11158 6B 616 31-MAR-26 Municipal(Public) 4999 2 1 2 1 0 0 0 0 0 0 N/A 0 22 11 59 30 0 0 0 100 0 0 0 0 0 0 0 1051 1051 Lower only 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 0 6SSO11158 Mojave STP WWTP same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0 0 0 N Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 5SSO11015 5S 616 30-DEC-25 Municipal(Public) 8972 3 5 1 4 0 0 0 0 0 9 16 71 63 25 7 0 0 5 100 20 42 25 0 0 13 100 4448 4448 Lower only 17 0 20 50 30 0 0 0 0 0 100 0 0 9 0 0 0 0 0 0 9 0 2 10 2 0 0 0 0 0 14 10 4 12 5A170104001 NW Regional Waste Disp Fac, 1155 Whalen Way, Lakeport, CA 95453 WWTP same agency N 40 18 0 N Y Root Intrusion Manhole None None 2024 5SSO11015 5S 616 30-DEC-25 Municipal(Public) 8972 1 8 1 4 0 0 0 0 0 10 N/A 16 71 63 25 7 0 0 5 100 20 42 25 0 0 13 100 4448 4448 Lower only 17 0 20 50 30 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 9 0 2 10 2 0 0 0 0 0 14 10 4 12 5A170104001 NW Regional Waste Disp Fac, 1155 Whalen Way, Lakeport, CA 95453 WWTP same agency N N/A 40 18 0 N Y Root Intrusion N/A Manhole N/A None None 2025 5SSO11015 5S 616 19-MAR-26 Municipal(Public) 8972 1 6 1 4 0 0 1 0 0 0 16 71 63 25 7 0 0 5 100 20 42 25 0 0 13 100 4448 4448 Lower only 17 0 20 50 30 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 10 2 0 0 0 0 0 14 10 4 12 5A170104001 NW Regional Waste Disp Fac, 1155 Whalen Way, Lakeport, CA 95453 WWTP same agency N N/A 40 18 0 Y Y Root Intrusion Manhole None None 2023 2SSO10145 2 616 02-APR-24 Municipal(Public) 3242 0 0 0 2 0 0 0 0 0 0 Crockett CSD employs two full-time managers to fill District Engineer and Sanitary Dept Manager roles. Port Costa Sanitary Dept hires LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs. LRP performs CCTV as well. LRP has two employees, one with four years experience, the other with 9 years experience. LRP has been in business for 30 years, the owner has been in the business for 40 years. All LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches experienced, grade level, and or certified staff. 1 15 37 51 11 1 0 0 100 0 0 100 0 0 0 100 1263 6 Upper and Lower 0 11 14 6 33 21 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 14 2 2sso10145 Philip F Meads WWTP, 1900 Dowrelio Dr, Crockett, CA 94525 WWTP other agency N 1 0 1 N Y Root Intrusion Roots, offsets holding wipes and debris. Gravity Mainline Roots offsets None Increased maintenance frequency, CCTV, and spot repairs and replacement *Question 5h... This report does not accept decimals. There is one 52 linear foot gravity main segment which cannot be accessed for cleaning. It was however CCTV'd in 2023 and found to be in good condition. 2024 2SSO10145 2 616 22-DEC-25 Municipal(Public) 3242 0 13 1 2 1 2 0 1 0 4 Crockett CSD employs two full-time managers to fill District Manager and Sanitary Dept Manager roles. Crockett Sanitary Dept hires LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs, and CCTV. LRP has two employees plus the owner operator, one with 5 years experience, the other with 10 years experience. LRP has been in business for 31 years, the owner has been in the business for 41 years. LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches 6 experienced, grade level, and or certified staff. District is contracted with Natural Systems Utilities (NSU) for treatment plant operations with 4 specifically assigned staff. NSU may also be utilized to assist with collection system issues. 1 15 37 51 11 1 0 0 100 0 0 100 0 0 0 100 1263 6 Upper and Lower 0 11 14 6 33 21 15 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 12 2.6 2 071006001 C&H Sugar, 830 Loring Avenue, Crockett, CA 94525 WWTP other agency N 1 0 1 Y Y Other (specify below) Roots, offsets. Wipes holding debris is the most common found issue Gravity Mainline None CCTV following spills. Frequency and method of cleaning is adjusted as needed or as recommended by cleaning and responding crew(s). Spot repairs, and full-line replacement are performed if main line defect failures are found. 2025 2SSO10145 2 616 30-MAR-26 Municipal(Public) 3242 0 13 1 2 1 2 0 1 0 4 Crockett CSD employs two full-time managers to fill District General Manager and Sanitary Dept Manager roles. Crockett Sanitary Dept hires LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs, and CCTV. LRP has two employees plus the owner operator, one with 6 years experience, the other with 11 years experience. LRP has been in business for 32 years, the owner has been in the business for 42 years. LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches 6 experienced, grade level, and or certified staff. District is contracted with Natural Systems Utilities (NSU) for treatment plant operations with 4 specifically assigned staff. NSU may also be utilized to assist with collection system issues. 1 15 37 51 11 1 0 0 100 0 0 100 0 0 0 100 1263 6 Upper and Lower 0 11 14 6 33 21 15 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 8.2 3.4 2 071006001 Philip F. Meads WWTP, 1900 Dowrelio Dr, Crockett, CA 94525 WWTP other agency N 2 1 1 Y Y Debris-wipes/Non-disposables Gravity Mainline none CCTV following spills. Frequency and method of cleaning is adjusted as needed or as recommended by cleaning and responding crew(s). Spot repairs, and full-line replacement are performed if main line defect failures are found. 2024 2SSO10096 2 616 18-DEC-25 Municipal(Public) 125354 2 16 2 2 0 2 0 0 0 0 N/A .7 255 21 54 19 4 1 1 100 62 38 0 0 0 0 100 31600 15800 Lower only 130 3 49 40 1 1 0 0 0 6 100 0 0 0 0 0 0 0 0 0 0 0 2 1 4 0 0 0 0 0 7 0 362142 47784 2 019014001 2020 Wake Ave, Oakland, CA 94607 WWTP other agency Y N UC Berkeley CS 2SSO10210 N/A 32 1 0 Y Y Debris-General N/A Lower Lateral N/A N/A Continuous CCTV inspection of sewer assets. Also routine cleaning of Sewer assets. Annual project to conduct spot repairs. 2023 5SSO11017 5S 616 26-MAR-24 Municipal(Public) 22980 2 5 1 1 2 1 0 0 0 0 n/a 2 70 31 42 25 2 0 0 100 54 15 31 0 0 0 100 7316 0 None 0 10 25 20 18 14 8 5 0 0 100 0 2 0 0 0 0 0 0 0 2 0 1 6 2 0 0 0 0 0 9 4 5 3 5C500104001 Oakdale WWTF, 9700 Liberini Avenue, Oakdale, CA 95361 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 1 Y Y Other (specify below) There has been no major spills in 2023. Other (specify below) Historically, Hollenbeck pump station has been a point of failure due to the shallow wet well. none Cleaning of hot spots regularly, inspection of sewer system, rehabilitation and replacement projects. 2024 5SSO11017 5S 616 26-SEP-25 Municipal(Public) 22980 2 5 1 1 2 1 0 0 0 0 N/A 2 75 31 42 25 2 0 0 100 54 15 31 0 0 0 100 7510 0 None 0 10 25 20 18 14 8 5 0 0 100 0 2 0 0 0 0 0 0 0 2 0 1 6 2 0 0 0 0 0 9 4 18 6 5c500104001 Oakdale WWTF, 9700 Liberini Avenue, Oakdale, CA 95361 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 00 0 N/A 3 0 1 Y Y Other (specify below) We haven't had any major sewer spills in 2024 Other (specify below) Hollenbeck sewer lift station has been a point of failure due to the wet pit being shallow. None. We clean our hot spots ( trouble sewer list ) every month or as needed, Also inspection of the sewer system rehabilitation and replacement projects. 2023 2SSO10147 2 616 28-MAR-24 Municipal(Public) 29040 2 5 3 1 2 1 3 2 0 0 NA 7 105 61 23 12 1 0 3 100 10 18 70 2 0 0 100 8811 0 None 0 0 1 11 36 34 0 0 0 18 100 0 0 2 5 2 0 0 0 0 9 0 0 15 4 0 0 0 0 0 19 3 93 30 2 215012001 Las Gallinas Valley SD Discharge Point 001, , San Rafael, CA WWTP same agency Y N Contempo Marin Mobile Home Park not required N Marin Mobile Home Park not required NA 4 6 2 Y Flow Exceeded Capacity (Separate Collection System Only) Siphon None We are in the process of a flow monitoring study for I/I. We are in the process of designing a sewer rehab project for 2024. 2024 2SSO10147 2 616 08-APR-25 Municipal(Public) 29062 2 8 1 1 1 1 3 2 0 0 6.7 105 73 16 10 1 0 0 100 15 15 62 8 0 0 100 8811 0 None 0 0 1 11 36 34 0 0 0 18 100 0 0 2 5 2 0 0 0 0 9 1 0 14 4 0 0 0 0 0 19 10 90 10 2 215012001 Las Gallinas Valley SD Discharge Point 001, , San Rafael, CA WWTP same agency Y N Contempo Marin Mobile Home Park Unknown N Marin Mobile Home Park Unknown 4 6 2 Y Root Intrusion Pump Station - Mechanical None I/I Flow Monitoring, Pump Station Improvements/Repairs, Sewer Rehab Project (Gravity Main Replacement) 2025 2SSO10147 2 616 31-MAR-26 Municipal(Public) 30615 0 9 1 1 2 3 4 2 0 0 6.7 105 73 16 10 1 0 0 100 15 15 62 8 0 0 100 8811 0 None 0 0 1 11 36 34 0 0 0 18 100 0 0 2 5 2 0 0 0 0 9 1 0 14 4 0 0 0 0 0 19 10 95 26 2 215012001 Las Gallinas Valley SD Discharge Point 001, , San Rafael, CA WWTP same agency Y N Contempo Marin Mobile Home Park Unknown N Marin Mobile Home Park Unknown 4 6 2 Y Y Flow Exceeded Capacity (Separate Collection System Only) Gravity Mainline None Flow monitoring study, flow modeling, pump station upgrades, sewer main rehabilitation projects and sewer main realignment investigation to divert flow to a pump station with more available capacity. 2023 2SSO10097 2 616 13-MAR-24 Municipal(Public) 4863 1 2 3 1 2 2 0 0 0 0 N/A 4 17 47 31 22 0 0 0 100 27 57 16 0 0 0 100 1946 0 None 0 1 12 13 30 44 0 0 0 0 100 1 1 0 0 0 0 0 0 0 2 0 0 2 0 0 0 0 0 0 2 1 4 2 2SSO10193-C San Francisco City Combined CS, , San Francisco, CA WWTP other agency N 0 0 0 Y Y Other (specify below) There have been no major spills for 2023. Other (specify below) There have been no major system infrastructure failure points in 2023. There are no ongoing spill investigations. Ongoing preventative maintenance of the sewer system. 2024 2SSO10097 2 616 21-MAR-25 Municipal(Public) 4874 1 3 3 1 2 2 0 0 0 0 N/A 4 17 47 31 22 0 0 0 100 27 57 16 0 0 0 100 1952 0 None 0 1 12 13 30 44 0 0 0 0 100 1 1 0 0 0 0 0 0 0 2 0 0 2 0 0 0 0 0 0 2 1 4 2 2 386009001 SF - OCEANSIDE Water Pollution Control Plant, 3500 Great Highway, San Francisco, CA 94132 WWTP other agency 2 386010001 San Francisco City and County Jail in San Bruno, 4100 Susan Drive, San Bruno, CA WWTP other agency N 0 0 0 Y Y Other (specify below) There have been no major spills for 2024 Other (specify below) There have been no major system infrastructure failure points in 2024. There are no ongoing spill investigations. Ongoing preventative maintenance of the sewer system. 2025 2SSO10097 2 616 30-MAR-26 Municipal(Public) 4889 0 3 3 1 2 2 0 0 0 0 N/A 4 17 43 36 21 0 0 0 100 19 41 40 0 0 0 100 1957 0 None 0 1 12 13 30 44 0 0 0 0 100 1 1 0 0 0 0 0 0 0 2 0 0 2 0 0 0 0 0 0 2 1 4 2 2 386010001 SF-SE Water Pollution Control Plant, N-Point & Bayside, 750 Phelps San Francisco, CA, 94124 WWTP other agency N 0 0 0 Y Y Other (specify below) There have been no major spills (Category 1) in 2025. Other (specify below) There have been no major system infrastructure failure points in 2025. There are no ongoing spill investigations. Ongoing preventative maintenance of the sewer system. 2023 2SSO10148 2 616 26-MAR-24 Municipal(Public) 84701 3 10 3 2 6 8 1 3 0 2 See Attachment 29 305 4 75 15 5 1 0 100 8 46 46 0 0 0 100 29600 4678 Lower only 26 7 0 40 43 10 0 0 0 0 100 3 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 1 5 109 34 2019123001 East Bay Discharger Authority 2561 Grant Ave. San Lorenzo CA. 94580 WWTP same agency N 25 2 2 Y Y Root Intrusion Lower Lateral No ongoing spill investigations No system deficiencies 2024 2SSO10148 2 616 12-DEC-25 Municipal(Public) 97960 5 7 3 2 13 7 3 3 0 3 2.9 305 4 75 12 4 1 0 100 8 46 46 0 0 0 100 29600 5017 Lower only 26 1 7 40 42 10 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 5 129 23 2 019123001 001-EBDA, , CA WWTP same agency N N/A 25 2 2 Y Y Root Intrusion N/A Lower Lateral N/A No ongoing spill investigations 2024- 6 mainline repairs, 5 lower lateral repairs, and 3 manhole rehabilitations 2025 2SSO10148 2 616 01-APR-26 Municipal(Public) 85899 9 7 3 2 14 7 3 3 0 3 2.8 304.9 4 75 12 4 1 0 100 8 46 46 0 0 0 100 31574 6304 Lower only 35.8 1 7 40 42 10 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 5 79 5 2 019123001 001-EBDA, , CA WWTP other agency Y N Pleasanton City/ Pleasanton City CS 2SSO010167 25 2 2 Y Y Root Intrusion Lower Lateral No ongoing spill investigations 2 - Category IV spills 2025, resulting in 32 gallons spilled 2023 2SSO10098 2 616 01-APR-24 Municipal(Public) 3756 3 4 1 1 3 1 0 0 0 0 0 11 50 50 0 0 0 0 0 0 0 0 0 0 0 0 947 947 Lower only 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 8 8 2SSO10179 WWTP same agency N 0 0 0 Y Y Root Intrusion Roots from Lateral, Root intrusion in laterals causing to lateral surcharge and/or mainline surcharge and discharge at the cleanout. Lower Lateral Roots in laterals and aging infrastructure. The District tracks the areas of possible spill issues when performing CCTV inspections. It records the mains and laterals with sewer root intrusions, blockages, or with severe structural defects or breaks and reports the Operation & Maintenance for increased frequency of cleaning and or recommends rehabilitation project. Designated On-Call Inspectors to investigate spill areas. Increased frequency of preventive maintenance for some of the areas with more root intrusion issues. District has implemented Capital Improvement Projects (CIP) to reduce spills in the system and to increase system resiliency. The CIP was done 2022 and the CIP work included cured-in place pipe rehabilitation of approximately 43 line segments of 6 and 8 inch sewer mains for a total length of 18,010 linear feet and spot repairs at 41 locations with open-cut trenching with an approximate length of 340 linear feet. 2024 2SSO10098 2 616 31-MAR-25 Municipal(Public) 3756 3 4 1 1 3 1 0 0 0 0 0 11 50 50 0 0 0 0 100 0 0 0 0 0 0 0 947 947 Lower only 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 8 8 2SSO10179 1577 Cragwood Lane, San Jose, CA 95127 WWTP same agency N 0 0 0 Y Y Other (specify below) No Spills during the Year 2024. Other (specify below) Not Applicable The District implements a preventive maintenance program to reduce the risk of potential spills. It tracks potential areas of spill issues during CCTV inspections, recording mains and laterals with sewer root intrusions, blockages, or significant structural defects or breaks. These findings are reported to the Operations & Maintenance team for increased cleaning frequency or to recommend rehabilitation projects. Designated on-call inspectors are assigned to investigate identified spill areas. District has implemented Capital Improvement Projects (CIP) to reduce spills in the system and to increase system resiliency. The CIP was done in 2022 and the CIP work included Cured-in-place rehabilitation of 6 inch and 8 inch sewer mains. 2025 2SSO10098 2 616 01-APR-26 Municipal(Public) 3756 2 2 1 1 1 1 0 0 0 0 0 11.3 50 50 0 0 0 0 100 0 0 0 0 0 0 0 1001 1001 Lower only 4.7 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 7.3 6.6 2SSO10179 WWTP same agency N Not Applicable 0 0 0 Y Y Root Intrusion Roots from lateral, root intrusion in laterals causing to lateral surcharge and/or mainline surcharge and discharge at the cleanout. Lower Lateral Roots in laterals and aging infrastructure. The District tracks the areas of possible spill issues when performing CCTV inspections. It records the mains and laterals with sewer root intrusions, blockages, or with severe structural defects or breaks and reports the Operation & Maintenance for increased frequency of cleaning and or recommends rehabilitation project. Designated On-Call inspectors to investigate spill areas. The District inspects all sewer segments via CCTV every five years (i.e., 20% of lines annually) for both periodic condition assessment and for follow-up on Spill events. Defect information is entered into the District's GraniteNet program. Perceived Structural defects are addressed by maintenance, emergency repair, or possible planned capital improvement activities. In 2025, the District developed three phase project plan called Lower Lateral Rehabilitation Project (SDRP) plan to fix the laterals based on the CCTV inspection data. It is a multi-phase program intended to inspect, assess, and rehabilitate lower sewer laterals to address structural deficiencies and improve system performance. The project is divided into Phases 1, 2, and 3, with sub-phases covering design, inspection, and construction activities over multiple fiscal years. 2023 2SSO10149 2 616 02-APR-24 Municipal(Public) 5500 0 0 0 0 0 0 0 0 0 0 The Town does not maintain the sanitary sewer system with our own staff. The Town is under contract with Westbay Sanitary Sewer District to maintain the sanitary sewer system. 1 60 60 37 3 0 0 0 1000 100 0 0 0 0 0 100 2000 0 None 0 8 6 6 80 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 0 22 9 2 438011001 Palo Alto Regional Water Quality Control Plant SSS same agency N N 6 0 0 Y Y Root Intrusion Gravity Mainline None Replace deficient pipes with new PVC or HDPE pipes 2024 2SSO10149 2 616 15-DEC-25 Municipal(Public) 5600 0 0 0 0 0 0 0 0 0 0 The Town does not maintain the sanitary sewer system with our own staff. The Town is under contract with Westbay Sanitary Sewer District to maintain the sanitary sewer system 1 60 60 37 3 0 0 0 1000 100 0 0 0 0 0 100 2000 0 None 0 8 6 6 80 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 0 22 9 2 438011001 Palo Altos Regional Water Quality Control Plant SSS same agency N N 0 0 0 Y Y Root Intrusion Gravity Mainline None Replace and upsize deficient pipes with new PVC or HDPE pipes 2025 2SSO10149 2 616 13-MAR-26 Municipal(Public) 5600 0 0 0 0 0 0 0 0 0 0 The Town does not maintain the sanitary sewer system with our own staff. The Town is under contract with Westbay Sanitary Sewer District to maintain the sanitary sewer system. 1 60 60 37 3 0 0 0 100 100 0 0 0 0 0 100 2000 0 None 0 8 6 6 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 0 22 9 2 438011001 Palo Altos Regional Water Quality Control Plant SSS same agency N N 6 0 0 Y Y Root Intrusion Gravity Mainline None Replace deficient pipes with larger new pipes 2023 5SSO20015 5S 616 28-MAR-24 Municipal(Public) 27300 3 1 1 1 1 0 0 0 0 2 N/A 11 81 33 45 15 1 1 5 100 20 9 19 51 0 1 100 7813 0 None 0 4 45 25 20 5 0 0 0 1 100 0 5 0 1 1 0 0 0 1 8 2 3 6 0 0 0 0 0 1 12 1 5 0 5SSO11019 Olivehurst CS, 1970 9th Avenue, Olivehurst, CA 95961 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) The PLC for the influent pump station at the WWTP stopped working causing the influent pumps to stop. This caused the headworks to back up and ultimately led to the major SSO in 2023 across from the WWTP. Other (specify below) N/A N/A Added a mobile app for alarms to the WWTP SCADA system Added a daily test page call to verify any alarms at the WWTP will be received by the person on call. 2024 5SSO20015 5S 616 17-JUL-25 Municipal(Public) 27300 3 2 1 1 1 1 0 0 0 4 N/A 11 81 33 45 15 1 1 5 100 20 9 19 51 0 1 100 7813 0 None 0 4 45 25 20 5 0 0 0 1 100 0 5 0 1 1 0 0 0 1 8 3 3 6 0 0 0 0 0 1 13 1 10 8 5A580102001 Olivehurst WWTP, 3908 Mary Avenue, Olivehurst, CA 95961 WWTP same agency N N/A 0 0 0 Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 5SSO20015 5S 616 31-MAR-26 Municipal(Public) 31280 3 2 1 1 0 2 0 0 0 4 N/A 11 81 33 45 15 1 1 5 100 20 9 19 51 0 1 100 7900 0 None 0 4 45 25 20 5 0 0 0 1 100 0 5 0 1 1 0 0 0 1 8 3 3 6 0 0 0 0 0 1 13 1 11.5 11 5A580102001 001, , Olivehurst, CA WWTP same agency N N/A 0 0 0 Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 2SSO10099 2 616 29-MAR-24 Municipal(Public) 30136 10 14 2 2 9 6 3 4 0 0 N/A 6 82 47 32 16 3 0 2 100 6 21 44 6 0 23 100 8692 18 Lower only 42 4 24 6 11 23 9 20 0 3 100 0 0 0 1 0 0 0 0 0 1 0 1 1 1 4 0 0 0 0 7 5 98 19 CA0037788 City of Burlingame WWTF, 1103 Airport Blvd., Burlingame CA 94010 WWTP other agency Y N Town of Hillsborough 2SSO10142 N County of San Mateo, Burlingame Hills 2SSO10223 N/A 26 9 5 Y Y Flow Exceeded Capacity (Separate Collection System Only) Lower Lateral In regards to Major spill causes, Burlingame PW has installed 14 Smart Cover monitoring devices to assist in determining the source of the I/I. Smoke testing is scheduled to be performed in FY 24/25 to locate any inflows. All sewer lift stations have external generators with switch gear to perform when power outages occur. 2024 2SSO10099 2 616 28-MAR-25 Municipal(Public) 35513 7 10 2 2 6 6 2 3 0 0 6 81 47 32 16 3 0 2 100 6 21 44 6 0 23 100 8694 18 Lower only 31 4 24 6 11 23 9 20 0 3 100 0 0 0 1 0 0 0 0 0 1 0 1 1 1 4 0 0 0 0 7 5 88 15 CA0037788 City of Burlingame WWTF, 1103 Airport Blvd., Burlingame CA 94010 WWTP same agency Y N Town of Hillsborough 2SSO10142 N County of San Mateo, Burlingame Hills 2SSO10223 N/A 26 9 6 Y Flow Exceeded Capacity (Separate Collection System Only) Lower Lateral In regards to major spill causes, Burlingame PW has installed 14 Smart Cover monitoring devices to assist in determining the source of I/I. Smoke testing was performed in in FY 25/26 to locate inflows, but the results were inconclusive. All sewer lift stations have external generators with switch gear to perform when power outages occur. additionally, Burlingame lift stations have 3 mobile, 6 diesel operated trash pumps that can perform by-pass pumping. 2025 2SSO10099 2 616 30-MAR-26 Municipal(Public) 35513 9 12 2 2 8 7 1 4 0 0 6 60 41 32 16 3 0 2 100 6 21 44 6 0 23 100 8694 18 Lower only 31 4 24 6 11 23 9 20 0 3 100 0 0 0 1 0 0 0 0 0 1 0 1 1 1 4 0 0 0 0 7 5 88.5 13.4 CA0037788 City of Burlingame WWTF, 1103 Airport Blvd, Burlingame WWTP other agency Y N Town of Hillsborough 2SSO10142 N County of San Mateo, Burlingame Hills 2SSO10223 N/A 26 9 6 Y Y Flow Exceeded Capacity (Separate Collection System Only) Lower Lateral In response to major spill causes identified in previous years, Burlingame Public Works has implemented several measures to help identify sources of inflow and infiltration (I/I). To date, 14 Smart Cover monitoring devices have been installed to assist in tracking system performance. Smoke testing was also conducted in FY 2025/26. Additionally, 60 temporary flow monitoring devices equipped with hydrographs are planned for deployment in FY 2026/27 to further evaluate and isolate potential I/I sources. However, results obtained to date have been inconclusive. All sewer lift stations are equipped with external generators and associated switchgear to maintain operations during power outages. Additionally, Burlingame sewer lift stations are supported by three mobile 6-inch diesel-operated trash pumps capable of performing bypass pumping when necessary. 2023 2SSO10100 2 616 10-FEB-26 Municipal(Public) 40000 1 6 4 2 4 2 2 5 0 5 NA 4.2 97.4 57 5 29 5 0 0 96 0 0 0 4 0 0 4 12000 0 None 0 5 20 15 30 30 0 0 0 0 100 0 0 1 1 3 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 90 15 2 417022002 Calera Creek Discharge Point 001, , CA WWTP same agency N NA 5 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Pump Station - Controls Contractor forgot to turn controls back on. We are continuing to investigate I&I. We have installed flow monitors through out our system. Our actions currently include CIP projects, In-house repairs, and Smoke testing. 2024 2SSO10100 2 616 03-APR-25 Municipal(Public) 40000 2 10 6 2 5 2 2 4 0 1 Mechanic-1= 1 4.2 96 57 5 29 5 0 0 96 0 0 0 4 0 0 4 12000 0 None 0 0 20 0 20 60 0 0 0 0 100 0 0 1 1 3 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 90 12 2SS010100 Calera Creek Wtr RP -CS 700 Coast Highway Pacifica WWTP same agency N N/A 4 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Pump Station - Controls Contractor error We are continuing to investigate I&I. We have installed flow monitors through out our system. Our actions currently include CIP projects, in-house repairs, and smoke testing. 2025 2SSO10100 2 616 24-MAR-26 Municipal(Public) 40000 1 6 4 2 4 2 2 5 0 5 N/A 4.2 110 57 19 29 5 0 0 110 0 0 0 4 0 0 4 14655 0 None 0 15 20 15 30 15 0 0 0 0 100 0 0 1 1 3 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 97 15 2 417022002 Calera Creek Discharge Point 001, , CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 5 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A CIP I&I Projects, CCTV Program, Hydro and Mechanical Line Cleaning, Pretreatment Program, Lateral Grant Incentive Program, Construction Specs Inspections, pro active Pump station Maintenance and Repairs as well as multiple Corrective Action Programs. 2023 2SSO10151 2 616 25-MAR-24 Municipal(Public) 9500 2 7 2 1 7 1 0 1 0 8 N/A 5 29 80 20 0 0 0 0 100 60 20 20 0 0 0 100 2800 0 None 0 5 15 0 80 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 20 0 0 0 0 0 20 0 40 10 2SSO10151 2001 Paradise Dr Tiburon, CA 94920 WWTP same agency N 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Increased frequency on cleaning program as well as more CCTV inspections to identify areas in need of repairs or replacement. Major CCTV work to identify areas of I&I in the near future. 2024 2SSO10151 2 616 11-MAR-25 Municipal(Public) 9500 1 3 2 1 4 2 0 1 0 10 N/A 5 29 80 20 0 0 0 0 100 60 20 20 0 0 0 100 2800 0 None 0 5 15 0 80 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 20 0 0 0 0 0 20 0 40 10 2SSO10151 2001 Paradise Dr Tiburon, CA 94920 WWTP same agency N N/A 0 0 0 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A Increased frequency of cleaning program as well as more CCTV to identify areas of concern and make needed repairs. 2025 2SSO10151 2 616 17-MAR-26 Municipal(Public) 9500 1 3 1 1 4 1 0 1 0 10 N/A 5 29 80 20 0 0 0 0 100 60 20 20 0 0 0 100 2800 0 None 0 10 15 0 75 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 2 0 20 0 0 0 0 0 22 0 45 5 2SSO10151 2001 Paradise Dr Tiburon, CA 94920 WWTP same agency N N/A 0 0 0 N Y Debris-wipes/Non-disposables N/A Gravity Mainline One force main break that was diverted quickly so repairs could be made. N/A Frequencies of existing cleaning program has been modified for certain line segments until line replacement can be ccompleted. 2023 5SSO11020 5S 616 22-OCT-25 Municipal(Public) 476 3 27 4 3 0 2 0 0 0 0 0 1 43 57 0 0 0 0 100 0 0 0 0 0 0 0 132 132 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5B031009001 Pardee Reservoir Recreation Area, 4900 Stony Creek , Ione, CA 95640 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable Other (specify below) not applicable not applicable not applicable 2024 5SSO11020 5S 616 22-OCT-25 Municipal(Public) 254 3 27 4 3 0 2 0 0 0 0 0 1 43 57 0 0 0 0 100 0 0 0 0 0 0 100 132 132 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5B031009001 Pardee Recreation Area CS, , Oakland, CA 94607 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, no spills during the reporting period Other (specify below) not applicable not applicable not applicable 2025 5SSO11020 5S 616 23-APR-26 Municipal(Public) 116 2 28 4 3 0 2 0 0 0 0 0 2 43 57 0 0 0 0 100 0 0 0 0 0 0 0 132 132 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 5B031009001 Pardee Recreation WWTP, 4900 Stony Creek Road Ione, 95640 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, there were no spills in 2025 Other (specify below) not applicable, there were no spills in 2025 not applicable not applicable 2023 2SSO10152 2 616 25-MAR-24 Municipal(Public) 500 2 7 2 1 7 1 0 1 0 8 N/A 2 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 123 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 2 0 2SSO10151 3700 Paradise Dr Tiburon, CA 94920 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) None Other (specify below) None N/A None at this time 2024 2SSO10152 2 616 05-NOV-25 Municipal(Public) 500 1 3 2 1 4 2 0 1 0 7 N/A 2 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 123 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 2 0 2SSO10152 Paradise Cove Plant 3700 Paradise Dr, Tiburon CA 94920 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) None Other (specify below) None N/A None at this time 2023 5SSO11021 5S 616 29-MAR-24 Municipal(Public) 23808 0 1 1 1 7 2 2 2 0 0 0 69 0 0 0 0 0 100 100 0 0 0 0 0 0 0 21 21 Lower only 21 8 46 14 14 9 9 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 5SSO11021 WQCF 14901 Poplar Ave Patterson, ca 95363 WWTP same agency N N N/A 0 0 0 Y Y Other (specify below) No Major Spills this reporting period Other (specify below) No Failure points this reporting period. None Regular system inspection and maintenance. 2024 5SSO11021 5S 616 14-AUG-25 Municipal(Public) 25063 0 1 1 1 7 2 2 2 0 0 1.4 69 0 0 0 0 0 100 100 0 0 0 0 0 0 0 21 21 Lower only 21 8 46 14 14 9 9 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 5B50NC00002 City of Patterson WQCF, 14901 Poplar Avenue, Patterson, CA 95363 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No Major Spills this reporting period. Other (specify below) No failure points this reporting period. None Regular System inspection and maintenance. 2025 5SSO11021 5S 616 31-MAR-26 Municipal(Public) 25063 0 1 1 1 7 2 2 2 0 0 0 69 0 0 0 0 0 100 100 0 0 0 0 0 0 0 21 21 Lower only 21 8 46 14 14 9 9 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 5SSO11021 WQCF 14901 Poplar Ave Patterson, ca 95363 WWTP same agency N N 0 0 0 Y Y Other (specify below) No Major Spills this reporting period Other (specify below) No Failure points this reporting period. None Regular system inspection and maintenance. 2023 2SSO10154 2 616 22-DEC-25 Municipal(Public) 14231 1 2 1 1 1 0 0 0 0 1 NA 1 59 68 22 7 1 1 1 100 100 0 0 0 0 0 100 6997 0 None 0 20 20 30 20 10 0 0 0 0 100 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 10 10 2 215015001 SASM WWTP Discharge Point 001, , Mill Valley, CA WWTP other agency N N NA 106 0 0 Y Root Intrusion NA Gravity Mainline NA None in 2023 we had a $2.5MM CIP Project and in 2024 we have a $3.4MM CIP Project out to bid. 2025 2SSO10154 2 616 25-MAR-26 Municipal(Public) 13904 1 2 1 1 0 0 0 0 0 0 n/a .5 56.1 68 22 7 1 1 1 100 0 0 0 0 0 0 0 5237 15 None .2 5 15 20 30 20 10 0 0 0 100 0 0 0 0 0 0 0 0 0 100 50 0 0 50 0 0 0 0 0 0 0 23.4 4.4 2SSO10154 Sewerage Agency of Southern Marin WWTP same agency N 106 0 0 Y Y Root Intrusion All spills in 2025 were caused, at least in part, by root intrusion either in the City's gravity main system or from privately owned laterals. Two spills investigations also showed buildup of wipes as a partial cause, and one spill was also the result of gravel/grit buildup. Gravity Mainline n/a None. The DPW Operations sewer crew keeps a list of hotspots to regularly assess and clean as necessary. The DPW Engineering staff performs an annual sanitary sewer capital improvement project to clean portions of the City sewer system (4.5 miles of pipe cleaned in 2025), complete CCTV inspections, replace and rehabilitate manholes, perform spot repairs, and replace sections of pipe that are identified as deficient (5,294 linear feet in 2025). 2025 5SSO11022 5S 616 31-MAR-26 Municipal(Public) 1050 1 6 1 1 1 2 0 0 0 3 17 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 450 450 Upper and Lower 3 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 5A290104001 Lake Wildwood WWTP, Pleasant Valley Rd. Penn Valley WWTP same agency N 0 0 0 N Y Pump Station Failure - Mechanical Pump Station - Mechanical none Routine maintenance, project planned to replace all AVRVs which are aging and showing signs for corrosion due to H2S. 2023 2SSO10155 2 616 27-MAR-24 Municipal(Public) 23552 2 12 1 1 2 3 1 2 0 1 N/A 1 59 64 25 10 1 0 0 100 10 0 90 0 0 0 0 6351 4128 Lower only 22 10 20 5 30 35 0 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 36 15 2 417019001 002, , CA WWTP other agency 2 417038001 E-002, 195 Belle Air Road, South San Francisco, CA 94080 Y N Burlingame City CS 2SSO10099 N/A 12 1 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Lower Lateral N/A N/A City-owned laterals are replaced when issues are reported or any spills happen. City mains are evaluated and either cleaned more frequently repaired or replaced. We use Cue-lock stainless steel with epoxy patches and fiberglass and epoxy patches to make point repairs to mains. 2024 2SSO10155 2 616 28-JAN-25 Municipal(Public) 23552 1 11 2 1 1 5 1 2 0 3 N/A 1 59 64 25 10 1 0 0 100 10 0 90 0 0 0 0 6351 4128 Lower only 22 10 20 5 30 35 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 52 25 2 417019001 002, , CA WWTP same agency 2 417038001 E-002, 195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency Y N Burlingame City CS 2SSO10099 N/A 12 1 0 Y Y Pipe Structural Problem/Failure - Installation N/A Gravity Mainline N/A N/A City owned assets continue to be pro active with maintenance. We replace when deficiencies occur and CCTV inspection reveals repairs needed. 2025 2SSO10155 2 616 25-FEB-26 Municipal(Public) 23552 4 15 3 1 9 7 8 3 0 3 N/A 1 59 62 27 10 1 0 0 100 10 0 90 0 0 0 100 6266 4128 Lower only 22 10 20 5 30 35 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 39.7 6.4 2 417019001 002, , CA WWTP same agency 2 417038001 E-002, 195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency Y N Burlingame City CS 2SSO10099 N/A 12 1 0 Y Y Other (specify below) No Major spills for 2025 Lower Lateral N/A Replacing lower laterals after spills and as we identify with CCTV. 2023 2SSO10156 2 616 28-MAR-24 Municipal(Public) 81067 2 6 1 1 3 2 2 1 0 0 NA 5 179 20 40 30 10 0 0 100 0 0 60 40 0 0 100 14779 14779 Lower only 71 0 1 35 48 16 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 52 12 2438014001 WWTP other agency N NA 38 2 24 Y Y Root Intrusion NA Manhole NA NA continuing with flushing and CCTV program to identify aging in infrastructure for repair 2024 2SSO10156 2 616 26-MAR-25 Municipal(Public) 81067 1 7 1 1 4 2 3 1 0 0 N/A 5 179 20 40 30 10 0 0 100 0 0 60 40 0 0 100 14779 14779 Lower only 71 0 1 35 48 16 0 0 0 0 100 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 48 10 C394847 San José-Santa Clara Regional Wastewater Facility WWTP other agency N N/A 38 2 24 Y Y Debris-General N/A Siphon N/A N/A Increase frequency of siphon flushing, purchasing new CCTV truck this year 2025 2SSO10156 2 616 01-APR-26 Municipal(Public) 81733 2 6 1 1 0 3 2 1 0 0 NA 5 179 20 40 30 10 0 0 100 0 0 60 40 0 0 100 14779 14779 Lower only 71 0 1 35 48 16 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 57.2 0 2438014001 San Jose - Santa Clara Regional Wastewater Facility WWTP other agency N NA 38 2 24 Y Y Fats, Oil and Grease (FOG) NA Manhole NA NA CCTV program stopped in 2024 due to theft/loss of CCTV truck and equipment. CCTV program restarted in late 2025 with full integration with GIS and CMMS. Staff have been able to better identify collection system issues for proactive maintenance (flushing, roots, etc). City of also continuing active FOG inspection program and coordination between flushing crew and FOG inspection staff. 2023 2SSO10157 2 616 29-MAR-24 Municipal(Public) 6047 0 0 0 1 0 0 0 0 0 0 5 certified employees at the centralized sewer plant Sewer Authority Mid-Coastside (SAM), see SAM agency submitted separate report. 27 23 88 3 9 0 0 0 100 81 19 0 0 0 0 100 1977 0 None 0 5 19 21 0 55 0 0 0 0 100 0 3 4 0 0 0 0 0 0 7 5 10 12 0 0 0 0 0 0 27 3 18 4 2SSO8001 Sewer Authority Mid-Coastside WWTP same agency N 2 0 1 Y Y Pump Station Failure - Power PG&E PSPS and storm failures. SAM force main failure - see SAM seperate agency report Gravity Mainline Root Intrusions restricting express sewers no CCTV and spot repairs, CIP projects, increased Cleaning of affected and similar areas 2023 2SSO10158 2 616 22-MAR-24 Municipal(Public) 22000 1 6 1 1 4 4 0 0 0 6 2 73 62 26 10 1 0 1 100 0 53 47 0 0 1 100 9211 1 None 0 9 8 31 30 15 1 6 0 0 100 0 0 0 2 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 64 11 2SSO10158 Mt. View Sanitary District 3800 Arthur rd Martinez, CA 94553 WWTP same agency N NA 2 0 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole none none MVSD is currently performing a system analysis of the entire collections system. we have contracted a full CCTV and mainline cleaning project and are currently 2/3 of the way through. this project is estimated to conclude in early to mid-2025. once completed the District engineer will start putting together an immediate, 5-year, and 10-year capitol improvement project. 2024 2SSO10158 2 616 25-NOV-25 Municipal(Public) 22000 1 6 1 1 4 4 0 0 0 6 2 73 62 26 10 1 0 1 100 0 53 47 0 0 1 100 9276 1 None 0 9 8 31 30 62 1 6 0 0 100 0 0 0 2 2 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 30 0 2 071029001 001-MtView, , CA WWTP same agency N NA 2 0 0 Y Y Debris-General Upper Lateral None MVSD is currently performing a system analysis of the entire collections system. we have contracted a full CCTV and mainline cleaning project and are currently 2/3 of the way through. This project is estimated to conclude in early 2026. Once completed the District engineer will start putting together an immediate, 5-year, and 10-year capitol improvement project. 2025 2SSO10158 2 616 26-MAR-26 Municipal(Public) 20517 1 6 1 1 4 4 0 0 0 0 2 76.3 62 26 10 1 0 1 100 0 53 47 0 0 1 100 9042 1 None 0 9 8 31 30 62 1 6 0 0 100 0 0 2 2 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 42.8 0 2 071029001 001-MtView, , CA SSS same agency N 4 0 0 Y Y Debris-General 1 CAT-1, caused by plumber's jetter left in lateral. 1 CAT-4, caused by roots. 3 caused by debris. Gravity Mainline None MVSD is completing the 3rd stage of a comprehensive collection system condition assessment. The assessment will be used to create CIP projects. Each SSO is reviewed for quality assurance and trouble spot is moved to a high frequency cleaning schedule. 2023 6SSO11165 6B 616 01-APR-24 Municipal(Public) 20961 3 8 3 1 0 0 0 0 0 0 1 NASSCO PACP 1 75 5 63 20 10 1 1 100 1 0 0 0 0 0 0 5098 4 None 0 1 7 55 14 0 0 0 0 36 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 22 2 6B150112001 Rosamond WTF (Ponds), 875 Southeast Patterson Road, Rosamond, CA 93560 WWTP same agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 0 Y Y Debris-General NA Pump Station - Power NA NA Increased collections system cleaning; implemented CCTV inspections; updated SERP 2024 6SSO11165 6B 616 22-JAN-25 Municipal(Public) 21000 0 10 3 1 0 0 0 0 0 0 NASSCO PACP: 3 employees and others scheduled for certification classes in Q1 2025 1 75 5 63 20 10 1 1 100 1 0 0 0 0 0 1 5498 4 None 0 1 7 55 14 0 0 0 0 23 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 19.1 1.3 6B150112001 Rosamond WTF (Ponds), 875 Southeast Patterson Road, Rosamond, CA 93560 WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 Y Debris-General Debris, wipes, grit Pump Station - Power n/a none Increase collection system cleaning, implemented CCTV inspections, updated SERP/SSMP. 2025 6SSO11165 6B 616 16-MAR-26 Municipal(Public) 20961 0 11 1 1 0 0 0 1 0 0 5 employees have NASSCO PACP, LACP, MACP - Daniel H, Matt W, Larry W, Dago H, Ben S. CWEA- Environmental Compliance Grade 1 .4 73.6 4 60 22 13 1 0 100 1 0 0 0 0 0 100 5098 5 Upper and Lower .5 4 11 54 21 0 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 16.7 2 6B150112001 Rosamond WTF (Ponds), 875 Southeast Patterson Road, Rosamond, CA 93560 WWTP same agency N N/A N/A N/A N/A N/A N/A 0 0 0 Y Y Debris-General Pump station mechanical, forced main coupling joint failure. Pump Station - Power Power outage. N/A Increased collections system cleaning and CCTV inspections; Focus on personnel changes and upgrades to existing cleaning/inspection equipment. 2023 5SSO11025 5S 616 28-MAR-24 Municipal(Public) 224 0 3 1 0 1 3 0 0 0 4 N/A 5 0 100 0 0 0 0 0 100 100 0 0 0 0 0 100 85 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 5sso11025 Pine Grove Comm Leachfield CS, 12800 Ridge Road, Sutter Creek, CA 95685 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 Y Y Debris-General Cust Debris Force Main N/A N/A N/A 2024 5SSO11025 5S 616 25-MAR-25 Municipal(Public) 224 0 3 1 0 1 3 0 0 0 4 N/A 5 0 100 0 0 0 0 0 100 100 0 0 0 0 0 100 85 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 5B05NP00005 Pine Grove Community Leachfield System, 12800 Ridge Road, Sutter Creek, CA 95685 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 Y Y Debris-General Customer debris Force Main N/A N/A N/A 2025 5SSO11025 5S 616 30-MAR-26 Municipal(Public) 224 0 3 1 0 1 3 0 0 0 4 N/A 5 0 100 0 0 0 0 0 100 100 0 0 0 0 0 100 85 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 5B05NP00005 Pine Grove Community Leachfield System, 12800 Ridge Road, Sutter Creek, CA 95685 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 Y Y Debris-General Customer debris Force Main N/A N/A N/A 2023 2SSO10159 2 616 28-MAR-24 Municipal(Public) 83300 6 22 3 2 1 6 4 3 0 0 N/A 2 273 30 46 19 3 2 0 100 0 55 18 27 0 0 100 24605 24602 Lower only 140 14 20 20 33 8 0 0 0 5 100 1 2 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 1 1 140 37 2 283009001 Napa Sanitation District Discharge Point 001, , Napa, CA WWTP same agency N N/A 140 2 7 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Lower Lateral None. Prioritized preventative maintenance and system rehab. 2024 2SSO10159 2 616 27-MAR-25 Municipal(Public) 83300 9 21 3 3 7 10 8 2 0 0 N/A 2 273 30 46 19 3 2 0 100 0 55 18 27 0 0 100 24605 24602 Lower only 140 14 20 20 33 8 0 0 0 5 100 1 2 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 1 1 125 51.8 2 283009001 Napa Sanitation District Discharge Point 001, , Napa, CA WWTP same agency N N/A 140 2 7 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Lower Lateral None. Prioritized preventative maintenance and system rehab. 2025 2SSO10159 2 616 19-MAR-26 Municipal(Public) 84500 5 17 1 3 3 11 7 7 3 0 2 273 30 46 19 3 2 0 100 0 55 18 27 0 0 100 24770 24767 Lower only 141 14 20 20 33 8 0 0 0 5 100 1 2 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 1 1 125 69 2 283009001 Napa Sanitation District Discharge Point 001, , Napa, CA WWTP same agency N N/A 140 2 7 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Gravity Mainline N/A Prioritized preventative maintenance and system rehabilitation to reduce I&I. 2023 2SSO10161 2 616 27-MAR-24 Municipal(Public) 101540 2 18 4 2 3 4 4 9 0 0 N/A 4 176 51 12 33 4 0 0 100 65 0 35 0 0 0 100 23493 37 Upper and Lower 2 1 3 4 30 46 16 0 0 0 100 0 0 2 3 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 2 105 3 2SSO10161 North San Mateo County CS, 333 90th Street, Daly City, CA 94015 WWTP same agency Y N Westborough Water District 2SSO10665 N Town of Colma 2SSO10117 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None at this time. Blockages in 2023 were caused by roots (1) remedied with increased maintenance to line segment. Pipe failure (2) with repairs made and boring contractor drilling through our infrastructure (1). 2024 2SSO10161 2 616 31-MAR-25 Municipal(Public) 99833 2 18 4 2 2 4 3 10 0 0 4 176 51 12 33 4 0 0 100 65 0 35 0 0 0 100 23493 37 Upper and Lower 2 1 3 4 30 51 16 0 0 0 100 0 0 2 3 65 0 0 0 0 5 0 0 0 0 65 0 0 0 0 0 2 107.2 3 2SSO10161 North San Mateo County Sanitation District 153 Lake Merced Blvd, Daly City, Ca 94015 WWTP same agency Y N Westborough Water District 2SSO10665 N Town of Colma 2SSO10117 0 0 0 Y Y Root Intrusion Gravity Mainline None Blockages in 2024 were caused by roots. Increase sewer main flushing of known troubled areas. Identify and review segments with root intrusion for CIP project. 2025 2SSO10161 2 616 27-MAR-26 Municipal(Public) 101200 5 20 5 3 4 5 2 9 0 0 4 176 51 12 33 4 0 0 100 65 0 35 0 0 0 100 23493 37 Upper and Lower 2 1 3 4 30 51 16 0 0 0 100 0 0 2 3 65 0 0 0 0 5 0 0 0 0 65 0 0 0 0 0 2 85 3 2 417021001 North San Mateo County Sanitation District WWTP, 153 Lake Merced Boulevard, Daly City, CA 94015 WWTP same agency Y N Westborough Water District 2SSO10665 N Town of Colma 2SSO10117 0 0 0 Y Y Root Intrusion Gravity Mainline None Deficiencies are reviewed, analyzed, and corrected or schedule adjustment according to issue. Identified areas on a CIP Project to improve capacity gravity flow. 2023 2SSO10162 2 616 22-DEC-25 Municipal(Public) 56000 3 3 1 1 5 4 2 3 0 0 NA 24 212 64 20 13 3 0 0 100 37 15 46 2 0 0 100 23186 0 None 0 0 10 22 46 22 0 0 0 0 100 0 28 8 3 0 0 0 0 0 39 0 0 0 0 0 0 0 0 0 0 20 171 39 2 215022001 Novato And Ignacio CS, 500 Davidson Street, Novato, CA 94945 WWTP same agency Y N Coast Guard Military Housing NA N College of Marin, Indian Valley Campus NA N Los Robles Movile Home Park NA NA 58 7 13 Y Y Flow Exceeded Capacity (Separate Collection System Only) Root Intrusion Gravity Mainline NA NA adjust cleaning frequencies, add lines to annual root treatment lists, repaired and replaced manhole covers with locking composite frame and covers. 2024 2SSO10162 2 616 17-DEC-25 Municipal(Public) 56000 1 4 1 1 4 4 2 3 0 0 NA 24 212 64 20 13 3 0 0 100 37 15 46 2 0 0 100 21461 0 None 0 0 10 22 46 22 0 0 0 0 100 0 14 7 3 0 0 0 0 0 24 0 14 1 0 0 0 0 0 0 15 20 161.3 30.9 2 215022001 Novato And Ignacio CS, 500 Davidson Street, Novato, CA 94945 WWTP same agency Y N Coast Guard Military Housing NA NA 58 7 13 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Gravity Mainline NA None Adjust cleaning frequencies, Add lines to annual root treatment list, repaired and replaced manhole covers with locking composite frame and covers. Spot repairs by dig up and by trenchless lining. 2025 2SSO10162 2 616 23-MAR-26 Municipal(Public) 56000 1 4 1 1 4 3 3 3 0 0 NA 24 212 64 20 13 3 0 0 100 37 15 46 2 0 0 100 20138 0 None 0 0 10 22 46 22 0 0 0 0 100 0 14 7 3 0 0 0 0 0 24 0 14 1 0 0 0 0 0 0 15 20 124.6 47.7 2 215022001 Novato And Ignacio CS, 500 Davidson Street, Novato, CA 94945 WWTP same agency Y N Coast Guard Military Housing NA NA 58 7 13 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole NA None Adjust cleaning frequencies, add lines to annual root treatment list, repaired and replaced manhole frame and covers with locking composite frame and covers. Spot repairs by dig-ups and trenchless lining and repairs. 2024 2SSO10163 2 616 11-FEB-25 Municipal(Public) 145085 2 15 0 2 2 6 3 2 0 2 N/A 3 269 31 47 16 5 1 0 100 38 36 26 0 0 0 100 38455 0 None 0 9 16 12 7 56 0 0 0 0 100 0 0 1 0 3 0 0 0 0 4 0 1 5 2 0 0 0 0 0 8 0 224.5 121.3 2SSO10163 Oro Loma Sd CS, 2600 Grant Avenue, San Lorenzo, CA 94580 WWTP same agency Y N Castro Valley Sanitary District 2sso10103 N City of San Leandro (5.9 miles) 2sso10181 N/A 37 3 22 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A There are no ongoing spill investigations. All spills receive a root cause analysis immediately to determine if any corrective measures are required. Point repairs, cleaning frequency adjustments, and line replacements are done on a continuous basis. 2025 2SSO10163 2 616 29-JAN-26 Municipal(Public) 145085 1 16 0 2 4 6 3 2 0 2 N/A 3 268 29 49 16 5 1 0 100 38 36 26 0 0 0 100 38455 0 None 0 10 16 12 7 55 0 0 0 0 100 0 0 1 0 3 0 0 0 0 4 0 1 5 2 0 0 0 0 0 8 0 223.5 118.4 2sso10163 Oro Loma Sd CS Grant Avenue San Lorenzo, CA 94580 WWTP same agency Y N Castro Valley Sanitary District 2sso10103 N City of San Leandro (5.9 miles) 2sso10181 N/A 37 3 22 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A There are no ongoing investigations. A root cause analysis is performed immediately after a spill event to determine what corrective measures are required. Point repairs, cleaning frequency adjustments, and line replacements are performed on a continuous basis. 2023 5SSO11028 5S 616 04-APR-24 Municipal(Public) 14525 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 13 102 72 17 9 2 0 0 100 58 32 10 0 0 0 100 0 0 None 0 0 28 40 19 1 0 0 0 12 100 0 0 2 2 0 0 0 0 0 4 0 9 6 5 0 0 0 0 0 20 0 28 17 5A31NP00011 LISWA, 600 Sixth Street, Lincoln, CA 95648 WWTP same agency N N/A 6 2 2 Y Y Other (specify below) N/A. No major spills in 2023. Major spills are defined as a Category 1 spill with greater than 50 gallons. Other (specify below) N/A. No major spills in 2023. Major spills are defined as a Category 1 spill with greater than 50 gallons. N/A. No major spills in 2023. Major spills are defined as a Category 1 spill with greater than 50 gallons. N/A. No major spills in 2023. Major spills are defined as a Category 1 spill with greater than 50 gallons. 2024 5SSO11028 5S 616 26-DEC-25 Municipal(Public) 14525 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 28 104 72 17 9 2 0 0 100 29 21 4 46 0 0 100 5558 0 None 0 0 37 35 18 8 0 0 0 2 100 0 0 2 2 0 0 0 0 0 4 0 9 6 5 0 0 0 0 0 20 0 29 14 5A31NP00011 LISWA. 600 Sixth Street, Lincoln, CA 95648 WWTP other agency 5A310104011 Placer Cnty SA No 28, ZONE No.6, Sheridan WWTP, E Street, Sheridan, CA 95486 WWTP same agency N N/A 6 2 2 Y Y Other (specify below) N/A. No major spills occurred during this reporting period. Other (specify below) N/A. No major spills occurred during this reporting period. None. No major spills occurred during this reporting period. N/A. No major spills occurred during this reporting period. 2025 5SSO11028 5S 616 26-MAR-26 Municipal(Public) 14940 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 28 106 67 22 9 2 0 0 100 29 21 4 46 0 0 100 5746 0 None 0 0 37 35 18 8 0 0 0 2 100 0 0 2 2 0 0 0 0 0 4 3 9 6 5 0 0 0 0 0 23 0 25 12 5A31NP00011 LISWA. 600 Sixth Street, Lincoln, CA 95648 WWTP other agency 5A310104011 Placer Cnty SA No 28, ZONE No.6, Sheridan WWTP, E Street, Sheridan, CA 95486 WWTP same agency N 6 2 2 Y Y Other (specify below) N/A. No Major Spills in 2025 Other (specify below) No infrastructure failures in 2025 N/A. No Major Spills in 2025 N/A. No Major Spills in 2025 2023 2SSO10164 2 616 18-MAY-26 Municipal(Public) 67901 2 8 1 1 3 1 0 0 0 0 0 208 30 41 20 7 2 0 100 0 0 0 0 0 0 0 17700 17700 Lower only 84 2 26 12 13 20 4 7 1 14 99 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 4 103 10 2SSO10164 Palo Alto Regional Water Quality Control Plant; 2501 Embarcadero Way Palo Alto, CA 94303 WWTP same agency Y N City Of Mountain View 2SSO10164 N City of Los Altos 2SSO10110 N Town of Los Altos Hills 2SSO10149 N East Palo Alto Sanitary District 2SSO10129 N Stanford University 2SSO10165 92 0 5 Y Y Other (specify below) There has been various spill causes. Some might include root intrusion, FOG, structural defects, rags, and debris. Other (specify below) Typically lower lateral and some gravity main. N/A Addressing wastewater issues necessitates a multifaceted strategy. Key initiatives include implementing sophisticated wastewater technologies • Repair, rehabilitate, replace, and upgrade system components as needed; • Properly manage, operate and maintain the wastewater collection system; • Cost effectively minimize I/I and provide sufficient system capacity; • Eliminate all preventable overflows in dry and wet weather; • Maintain an effective spill response that reduces overflow impact to public health & the environment; • Analysis and evaluation of historical spills to provide recommendations to reduce future risk; • Identify system blockages due to fats, oil, and grease (FOG) and develop strategies to decrease backups; and • Provide regular training for City of Palo Alto Utility Staff and Contractors in wastewater collection system maintenance, operations, and emergency response. 2024 2SSO10164 2 616 18-NOV-25 Municipal(Public) 67901 2 8 1 1 3 0 0 0 0 0 .1 208 30 41 20 7 2 0 100 0 0 0 0 0 0 0 18157 17807 Lower only 73 3 26 14 13 20 4 6 1 13 100 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 1 4 101 7 2 438011001 Palo Alto Regional Water Quality Control Plant 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency Y N City Of Mountain View 2SSO10164 N City of Los Altos 2SSO10110 N Town of Los Altos Hills 2SSO10149 N East Palo Alto Sanitary District 2SSO10129 N Stanford University 2SSO10165 92 0 5 Y Y Other (specify below) There has been various spill causes. Some might include root intrusion, FOG, structural defects, rags, and debris. Other (specify below) Typically lower lateral and some gravity main. N/A Addressing wastewater issues necessitates a multifaceted strategy. Key initiatives include implementing sophisticated wastewater technologies • Repair, rehabilitate, replace, and upgrade system components as needed; • Properly manage, operate and maintain the wastewater collection system; • Cost effectively minimize I/I and provide sufficient system capacity; • Eliminate all preventable overflows in dry and wet weather; • Maintain an effective spill response that reduces overflow impact to public health & the environment; • Analysis and evaluation of historical spills to provide recommendations to reduce future risk; • Identify system blockages due to fats, oil, and grease (FOG) and develop strategies to decrease backups; and • Provide regular training for City of Palo Alto Utility Staff and Contractors in wastewater collection system maintenance, operations, and emergency response. 2025 2SSO10164 2 616 27-MAY-26 Municipal(Public) 67901 2 6 1 1 1 0 0 0 0 0 .3 208 30 41 20 7 2 0 100 0 100 0 0 0 0 100 18167 17821 Lower only 73 3 26 14 13 20 4 6 1 13 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 4 92.7 18.4 2 438011001 Palo Alto Regional Water Quality Control Plant 2501 Embarcadero Way, Palo Alto, CA 94303 WWTP other agency Y N City Of Mountain View 2SSO10111 N City of Los Altos 2SSO10110 N Town of Los Altos Hills 2SSO10149 N East Palo Alto Sanitary District 2SSO10129 N Stanford University N/A 92 0 5 Y Y Other (specify below) There has been various spill causes. Some might include root intrusion, FOG, structural defects, rags, and debris. Other (specify below) Typically lower lateral and some gravity main. N/A Addressing wastewater issues necessitates a multifaceted strategy. Key initiatives include: • Implementing advanced wastewater technologies • Repair, rehabilitate, replace, and upgrade system components • Properly manage, operate, and maintain the collection system • Minimize inflow and infiltration (I/I) cost-effectively • Ensure adequate system capacity • Eliminate preventable overflows in dry and wet weather • Maintain effective spill response to protect public health and the environment • Analyze historical spills to reduce future risks • Address blockages from fats, oil, and grease (FOG) • Provide regular training for staff and contractors • Completed Sewer Collection System Master Plan to guide a 5-year capital improvement program (CIP) • Implement a 3-year CCTV program to support future CIP prioritization • Develop a 3-year Lower Sewer Lateral Replacement Program to address high-risk laterals 2023 5SSO11029 5S 616 04-APR-24 Municipal(Public) 1468 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 1 16 71 20 9 0 0 0 100 100 0 0 0 0 0 100 568 0 None 0 0 6 51 42 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 0 0 3 0 1 0 5SSO11362 SMD No. 2 CS, 3091 County Center Drive, Auburn, CA 95603 SSS same agency N 0 0 0 Y Y Other (specify below) N/A. No major SSOs in 2023. Major spills defined as a Category 1 greater than 50 gallons. Other (specify below) N/A. No major SSOs in 2023. Major spills defined as a Category 1 greater than 50 gallons. N/A. No major SSOs in 2023. Major spills defined as a Category 1 greater than 50 gallons. N/A. No major SSOs in 2023. Major spills defined as a Category 1 greater than 50 gallons. 2024 5SSO11029 5S 616 31-MAR-25 Municipal(Public) 1468 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 1 16 71 20 9 0 0 0 100 100 0 0 0 0 0 100 568 0 None 0 0 7 51 52 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 0 0 3 0 1 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N N/A 21 1 1 Y Y Operator Error (specify below) 3rd party driller operator error occurring during geotechnical investigation. Other (specify below) None. Location of major spill is pending upgrades due to the County's 25-year lifecycle pump station R&R PM program. None. No major deficiencies noted for this reporting period. 2025 5SSO11029 5S 616 26-MAR-26 Municipal(Public) 1592 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 1 16 64 25 11 0 0 0 100 100 0 0 0 0 0 100 617 0 None 0 0 7 51 42 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 0 0 3 0 2 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A. No major spills occurred during this reporting period. Other (specify below) N/A. No major spills occurred during this reporting period. N/A. No major spills occurred during this reporting period. N/A. No major spills occurred during this reporting period. 2023 2SSO10165 2 616 29-MAR-24 Municipal(Public) 59700 7 23 5 5 4 2 2 2 0 0 4 192 40 38 17 4 0 0 100 26 1 8 65 0 0 100 19415 48 None 1 1 13 37 28 15 5 1 0 0 100 0 1 3 2 0 0 0 0 0 6 0 0 3 0 0 0 0 0 0 3 1 96 4 494006001 Petaluma Ellis Creek Water Recycling Facility,3890 Cypress Petaluma , CA WWTP same agency Y N Penngrove Sanitation Zone 2SSO10195 31 10 3 Y Y Fats, Oil and Grease (FOG) Grease and I&I contributed to only SSO for the year. Gravity Mainline None Pipeline added to preventative maintenance program for annual cleaning. 2024 2SSO10165 2 616 22-DEC-25 Municipal(Public) 59334 3 29 4 4 4 2 2 2 0 0 4 192 40 39 17 4 0 0 100 26 1 8 65 0 0 100 19452 48 None .7 2 13 37 28 14 5 1 0 0 100 0 1 3 2 0 0 0 0 0 6 0 0 3 0 0 0 0 0 0 3 1 65 19.5 2 494006001 Petaluma Ellis Creek Water Recycling Facility,3890 Cypress Petaluma , CA WWTP same agency Y N Penngrove Sanitation Zone 2SSO10195 31 10 3 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole N/A The City is upgrading/replacing undersized and aging pipelines immediately downstream of recent SSO's. In addition, the City is actively making strides to reduce I&I into the system. In addition to the regular pipeline cleaning and inspecting, the city is implementing a smoke testing program and manhole rehabilitation program, as part of implementing its Improvement Action Plan, an important component of the SSMP. 2025 2SSO10165 2 616 30-MAR-26 Municipal(Public) 59314 2 33 6 4 5 5 2 2 0 0 3.9 192.1 40 39 17 4 0 0 100 26 1 8 65 0 0 100 19479 48 None .2 2 13 37 28 14 5 1 0 0 100 0 1 3 2 0 0 0 0 0 6 0 0 3 0 0 0 0 0 0 3 1 57.8 15 494006001 Petaluma Ellis Creek Water Recycling Facility,3890 Cypress Petaluma , CA WWTP same agency Y N Penngrove Sanitation Zone 2SSO10195 31 10 3 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Two SSOs were caused by storm events, and one SSO caused by Root intrusion. Manhole None Upsized pipeline on Jefferson Street receiving pump station discharge. This project eliminated SSO occurrences. Modified notification and pumping set points at C Street pump station to reduce potential for SSOs on Petaluma Blvd. South. Maria Drive sewer main added to preventative maintenance list and root control list. 2024 2SSO10166 2 616 02-APR-25 Municipal(Public) 10811 1 3 1 1 5 0 0 0 0 0 0 48.6 65 22 12 0 0 0 100 0 0 0 0 0 0 0 3871 0 None 0 1 69 9 0 0 0 0 0 21 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.2 5.3 2 019014002 001-PIWWF, , CA WWTP other agency Y N City of Oakland Sanitary System 2 019183001 10 0 0 N Y Root Intrusion Manhole N/A The City is implementing several CIPs that will replace an additional 42,000 LF of sewer pipeline replacement. At conclusion of these projects, all non-plastic pipe will be replaced. 2025 2SSO10166 2 616 01-APR-26 Municipal(Public) 10800 2 1 1 1 4 0 0 0 0 0 0 48.6 65 23 12 0 0 0 100 0 0 0 0 0 0 0 3871 8 None 0 2 69 9 0 0 0 0 0 20 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.1 6 2 019014002 001-PIWWF, , CA WWTP other agency N N City of Oakland Sanitary Sewer System 2 019183001 10 0 0 N Y Root Intrusion Manhole None City of Piedmont rehabilitated 3,197 LF of sewer main and rehabilitated/replaced 18 manholes. The Phase 6 Sanitary Sewer Rehabilitation Project of 16,930 LF of mainline is scheduled to be bid in Summer of 2026 with construction completed in October 2027. 2023 2SSO10167 2 616 29-MAR-24 Municipal(Public) 79871 3 14 2 1 12 2 1 0 0 0 NA 5 259 11 69 15 3 1 1 100 40 0 60 0 0 0 100 20820 83 Upper and Lower 1 1 12 52 33 1 0 0 0 1 100 0 2 2 1 0 0 0 0 0 5 0 2 4 0 0 0 0 0 0 6 0 35 19 2 019033001 002F1-Dublin, , CA WWTP other agency 2 019025001 002E-Livermore, , CA WWTP other agency Y N Castlewood, Alameda County 2 SSO18112 NA 11 3 8 Y Y Debris-wipes/Non-disposables NA Gravity Mainline NA NA Deficiencies are handled either in house by our crews or by private contractors depending on the severity of the deficiency. We repair defects and/or add it to the monthly Hotspot list and increase jetting/inspection frequency Deficiencies are also added to the annual CIP list to repair/replace by contractors. Deficiencies are prioritized and listed in order of severity and criticality. Areas are CCTV'd and we also use NASSCO PACP rating to determine deficiencies of our system. 2023 2SSO10168 2 616 29-MAR-24 Municipal(Public) 80512 0 14 1 1 5 8 2 1 0 0 5 staff are NASSCO PACP, MACP, and LACP certified 10 183 41 41 16 2 0 0 100 31 14 55 0 0 0 100 18017 18017 Lower only 109 1 4 21 14 19 0 0 0 41 100 0 0 5 1 0 0 0 0 0 6 0 2 14 9 0 0 0 0 0 25 0 80 18 2SSO10190 SBSA CS, 1400 Radio Road, Redwood City, CA 94065 WWTP same agency Y N Emerald Lake Heights Sewer Maintenance District 2SSO10227 N Fair Oaks Sewer Maintenance District 2SSO10228 N Oak Knoll Sewer Maintenance District 2SSO10229 N Woodside Town Center Sewer Assessment District 2SSO10218 NA 9 0 26 Y Y Fats, Oil and Grease (FOG) Root Intrusion; Debris-General Gravity Mainline NA No ongoing spill investigations Reviewed and modified preventive maintenance cleaning schedule 2024 2SSO10168 2 616 24-SEP-25 Municipal(Public) 80512 1 14 1 1 5 9 2 1 0 0 NASSCO PACP, MACP, and LACP Certified (4) 10.2 183.7 40 41 16 2 1 0 100 31 14 55 0 0 0 100 18017 18017 Lower only 109 1 4 21 14 19 0 0 0 41 100 0 0 5 1 0 0 0 0 0 6 0 2 14 9 0 0 0 0 0 25 0 60 19 2 417037001 Silicon Valley Clean Water, 1400 Radio Rd, Redwood City, CA 94065 WWTP other agency Y N Woodside Town Center Sewer Assessment District 2SSO10218 N Fair Oaks Sewer Maintenance District 2SSO10228 N Emerald Lake Heights Sewer Maintenance District 2SSO10227 N Oak Knoll Sewer Maintenance District 2SSO10229 9 0 26 Y Y Fats, Oil and Grease (FOG) FOG Debris - General Damage by others Pipe Structural Problem/Failure Inappropriate Discharge Gravity Mainline Gravity Mainline, Blow off Valve No Coordinate with WWTP for commercial FOG inspections and follow-up Adjust gravity main line maintenance schedule for certain areas 2025 2SSO10168 2 616 30-MAR-26 Municipal(Public) 80512 2 14 1 1 2 11 3 1 0 0 NASSCO PACP, MACP, and LACP Certified (4) 10 183 40 41 16 2 1 0 100 31 14 55 0 0 0 100 18017 18017 Lower only 109 1 4 21 14 19 0 0 0 41 100 0 0 5 1 0 0 0 0 0 6 0 2 14 9 0 0 0 0 0 25 0 63.8 1.5 2 417037001 Silicon Valley Clean Water, 1400 Radio Rd, Redwood City, CA 94065 WWTP same agency Y N Woodside Town Center Sewer Assessment District 2SSO10218 N Fair Oaks Sewer Maintenance District 2SSO10228 N Emerald Lake Heights Sewer Maintenance District 2SSO10227 N Oak Knoll Sewer Maintenance District 2SSO10229 9 0 26 Y Y Fats, Oil and Grease (FOG) Root Intrusion Gravity Mainline Air Relief Valve No Coordinate with WWTP for commercial FOG inspections and follow-up. Adjust gravity main line maintenance schedule for certain areas. 2023 2SSO10169 2 616 25-MAR-24 Municipal(Public) 10000 0 1 1 1 1 0 1 1 0 0 Not Applicable 4 44 80 15 5 0 0 0 100 85 10 5 0 0 0 100 4400 0 None 0 5 55 30 5 5 0 0 0 0 100 0 1 11 0 0 0 0 0 0 12 0 12 0 0 0 0 0 0 0 12 0 24 1 2215015001 Sewerage Agency of Southern Marin 450 Sycamore Ave, Mill Valley Ca. 94941 WWTP other agency N 4 2 0 N Y Debris from Lateral Manhole 0 We are continuing to improve/replace gravity pipe by way of pipebursting. 2024 2SSO10169 2 616 12-MAR-25 Municipal(Public) 10000 0 1 1 1 1 0 1 1 0 0 Not Applicable 4 44 80 15 5 0 0 0 100 85 10 5 0 0 0 100 4400 0 None 0 5 55 30 5 5 0 0 0 0 100 0 1 11 0 0 0 0 0 0 12 0 12 0 0 0 0 0 0 0 12 0 24 1 2215015001 Sewerage Agency of Southern Marin WWTP other agency N N none na N none na N none na N none na N none na none 4 2 0 N Y Debris from Lateral na Manhole na 0 Continuing to replace gravity sewers by way of pipebursting. 2025 2SSO10169 2 616 02-FEB-26 Municipal(Public) 10000 0 1 1 1 1 0 1 1 0 0 Not Applicable 4 44 80 15 5 0 0 0 100 85 10 5 0 0 0 100 4400 0 None 0 7 55 30 5 3 0 0 0 0 100 0 1 11 0 0 0 0 0 0 12 0 12 0 0 0 0 0 0 0 12 0 18 .7 2215015001 Sewerage Agency of Southern Marin WWTP other agency N 4 2 0 N Y Debris from Lateral Manhole 0 We are continuing to improve/replace gravity pipe by way of pipebursting. 2023 5SSO11033 5S 616 27-MAR-24 Municipal(Public) 423 0 3 1 0 1 3 0 0 0 0 N/A 0 6 100 0 0 0 0 0 100 0 0 0 0 0 0 0 422 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 5 5 5SSO11033 Plymouth CS, , Plymouth, CA 95685 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A N/A Jetting Mainlines 2024 5SSO11033 5S 616 25-MAR-25 Municipal(Public) 423 0 3 1 0 1 3 0 0 0 4 N/A 0 6 100 0 0 0 0 0 100 0 0 0 0 0 0 0 422 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 5 5 5B030106001 Plymouth WWTP, 7784 Old Sacramento Road, Plymouth, CA 95669 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A N/A Jetting main lines 2023 2SSO10170 2 616 02-APR-24 Municipal(Public) 68500 4 3 1 1 2 0 1 0 0 1 na 4 185 60 16 16 8 1 0 100 14 57 28 0 0 0 100 19885 0 None 0 0 5 2 13 60 5 5 0 0 100 0 0 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 106 5 2SSO10170 601 CANAL BLVD RICHMOND, CA 94801 WWTP same agency N N NA 0 0 1 N Y Flow Exceeded Capacity (Separate Collection System Only) Gravity Mainline Capital Improvement Projects to reduce Inflow & Infiltration during wet weather events. Currently under Baykeeper Settlement Agreement to repair/replace minimum of 2.0 miles of sanitary sewer collection system annually. 2023 5SSO11035 5S 616 13-DEC-24 Municipal(Public) 1086 2 15 2 2 7 2 1 0 0 10 .9 2.7 30 67 3 0 0 0 100 0 100 0 0 0 0 100 328 328 Lower only 1 0 0 29 71 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 .2 1 0 5B390104001 City of Manteca WW Quality Control Facility, Manteca, CA SSS other agency N 0 0 0 Y Y Debris-General Pump Station - Controls N/A Investigating Pump Station Updrades. 2025 5SSO11035 5S 616 16-MAR-26 Municipal(Public) 1086 6 11 2 2 5 3 0 0 0 8 SWRCB .9 2.7 30 67 3 0 0 0 100 0 100 0 0 0 0 100 328 328 Lower only 1 0 0 29 71 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 .2 1 0 5b390104001 001, , Manteca, CA WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A N/A 2023 2SSO10171 2 616 28-MAR-24 Municipal(Public) 9653 3 2 0 2 2 1 0 0 0 5 District Manager holds a M.S./B.S. in Civil and environmental engineering Operations Manager holds an A.S. degree and Technical Certification for Water and Wastewater Treatment Technology 2 25 50 20 20 10 0 0 100 80 0 20 0 0 0 100 2550 0 None 0 1 35 5 30 9 10 5 5 0 100 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 8 5 2SSO10171 Rodeo Sanitary District WWTP, 800 San Pablo Avenue, Rodeo, CA 94572 WWTP same agency N 2 1 2 Y Y Root Intrusion Gravity Mainline None Accelerated maintenance and infrastructure repairs. 2024 2SSO10171 2 616 25-MAR-25 Municipal(Public) 9653 3 4 0 2 2 1 0 0 0 5 District Manager holds BS/MS in Civil and Environmental Engineering. Operations Manager holds AS degree and technical certification for water and wastewater treatment technology. 2 25 50 20 20 10 0 0 100 80 0 20 0 0 0 100 2559 0 None 0 1 35 5 30 9 10 5 5 0 100 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 14.8 3.4 2sso10171 Rodeo Sanitary District Water Pollution Control Plant, 800 San Pablo Ave, Rodeo Ca 94572 WWTP same agency N 2 1 2 Y Y Root Intrusion No spills for 2024. Gravity Mainline No spills for 2024. none. Accelerated maintenance and system repairs if spills occur. 2025 2SSO10171 2 616 18-MAR-26 Municipal(Public) 9653 3 2 0 2 2 1 0 0 0 6 District Manager holds BS/MS in Civil Engineering. Operations Manager holds AS degree for water/wastewater 2 25 50 20 20 10 0 0 100 80 0 20 0 0 0 100 2559 0 None 0 1 35 5 30 9 10 5 5 0 100 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 14.1 2.9 2 071039001 800 San Pablo Ave, Rodeo, 94572, CA WWTP same agency N 2 1 2 Y Y Root Intrusion Gravity Mainline none accelerated maintenance system repairs as needed 2023 2SSO10172 2 616 21-MAR-24 Municipal(Public) 44712 0 16 5 3 11 3 13 4 0 0 7 199 66 20 9 4 1 0 100 11 9 7 45 28 0 100 15500 0 None 0 4 21 13 13 25 10 7 0 7 100 0 0 3 4 0 0 0 0 0 7 0 0 2 4 1 0 0 0 5 12 0 184 29 2 215116001 Central Marin San. Agcy. WWTP, 1301 Anderson Drive, San Rafael, CA 94901-5339 WWTP other agency N 291 5 30 Y Y Root Intrusion Gravity Mainline None CIP Program, enhanced cleaning program, in house repair program. 2024 2SSO10172 2 616 25-MAR-25 Municipal(Public) 44712 0 12 6 3 9 4 12 4 0 0 7 199 66 20 9 4 1 0 100 11 9 7 45 28 0 100 15500 0 None 0 4 21 13 13 25 10 7 0 7 100 0 0 3 4 0 0 0 0 0 7 0 0 2 4 1 0 0 0 5 12 0 172 26 2 215116001 Central Marin San. Agcy. WWTP, 1301 Anderson Drive, San Rafael, CA 94901-5339 WWTP other agency N 291 5 30 Y Y Debris-General Gravity Mainline None CIP Program, enhanced cleaning program, in house repair program. 2025 2SSO10172 2 616 17-MAR-26 Municipal(Public) 44712 0 15 6 3 13 5 12 3 1 0 7.7 199 66 20 9 4 1 0 100 11 9 7 45 28 0 100 15500 0 None 0 6 22 13 12 24 9 7 0 7 100 0 0 3 4 0 0 0 0 0 7 0 0 2 4 1 0 0 0 5 12 0 147 25 2 215116001 Central Marin Sanitation Agency WWTP, 1301 Andersen Drive, San Rafael, CA 94901-5339 WWTP other agency N 291 5 30 Y Y Pipe Structural Problem/Failure - Installation Force Main none The District performed a condition assessment of the failed bypass force main by its CCTV Crew, and then engaged V&A consulting engineers who performed electromagnetic (EM) scanning in July 2025 and physical pipeline laboratory sample analysis to evaluate the remaining structural metal thickness within the failed RCCP pipeline. The testing found a gradient of structural loss away from the failure site which also had extenuating factors such as an undocumented high spot which trapped H2S gas causing corrosion, as well as structural loading from previous construction by others which included a concrete post piling poured directly on top of the force main failure point with additional loading of a concrete pad and shipping container storage area owned by others. The District is replacing this force main in 2026 with HDPE specified to avoid corrosion, and the condition assessment program expanded with EM scanning and acoustic studies to identify other corrosion risks in steel force mains. 2023 5SSO11037 5S 616 30-MAR-24 Municipal(Public) 10742 2 4 1 1 2 2 1 1 0 6 None 6 51 50 30 13 2 0 5 100 25 25 50 0 0 0 100 5223 0 None 0 0 60 10 10 5 5 5 0 5 100 0 1 0 2 0 0 0 0 0 3 0 4 0 2 0 0 0 0 0 6 2 10 10 5A480108001 001, , Rio Vista, CA WWTP same agency 5A480104001 001, , Rio Vista, CA WWTP same agency 5A480108001 001, , Rio Vista, CA WWTP same agency 5A480104001 001, , Rio Vista, CA WWTP same agency N N Sacramento River 5A480108001 N Sacramento River 5A480108001 N Scaramento River 5A480108001 N Scaramento River 5A480104001 N Sacramento River 5A480104001 No 0 0 0 N Y Root Intrusion None Gravity Mainline None No ongoing spills or investigations CIP upgrades and CCTV, cleaning 2025 5SSO11037 5S 616 12-JAN-26 Municipal(Public) 10338 4 5 2 1 2 2 1 0 2 7 None 6 52 50 30 13 2 0 5 100 25 25 50 0 0 0 100 5200 0 None 0 0 60 10 10 5 5 5 0 5 100 0 1 0 2 0 0 0 0 0 2 0 4 0 2 0 0 0 0 0 6 2 10 10 5A480108001 001, , Rio Vista, CA WWTP same agency 5A480104001 001, , Rio Vista, CA WWTP same agency N No 0 0 0 N Y Root Intrusion None Gravity Mainline NA No ongoing spills or investigations CIP upgrades and future plant consolidation 2023 2SSO10175 2 616 25-JUN-24 Municipal(Public) 27000 1 12 3 2 4 4 1 0 0 0 5.7 1.8 0 0 25 75 0 0 100 0 14 86 0 0 0 100 0 0 None 0 6 25 0 69 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 5.7 1.8 0 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside Wastewater Treatment Plant), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP same agency Y N Montara Water and Sanitary District 2SSO10157 N Granada Sanitary District 2SSO10138 N City of Half Moon Bay 2SSO10139 0 2 0 N Y Other (specify below) Age of pipe Force Main Force main hole None Replaced failed section of ductile pipe with HDPE 2024 2SSO10175 2 616 11-MAR-25 Municipal(Public) 27000 1 11 3 2 5 4 2 0 0 0 5.7 1.8 0 0 25 75 0 0 100 0 14 86 0 0 0 100 0 0 None 0 6 25 0 69 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 5.7 1.8 0 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP same agency Y N Montara Water and Sanitary District 2SSO10157 N Granada Sanitary District 2SSO10138 N City of Half Moon Bay 2SSO10139 0 2 0 N Y Other (specify below) Nothing to report for 2024 Other (specify below) Nothing to report for 2024 None Proactively replacing northern ductile sections with HDPE , in design phase now. 2025 2SSO10175 2 616 20-MAR-26 Municipal(Public) 27000 1 13 3 2 4 5 2 0 0 0 5.7 1.8 0 0 25 75 0 0 100 0 14 86 0 0 0 100 0 0 None 0 6 25 0 69 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 5.7 1.8 0 2 417068001 SAM WWTP (Sewer Authority Mid-Coastside WWTP), 1000 North Cabrillo Highway, Half Moon Bay, CA 94019-1466 WWTP same agency Y N Montara Water and Sanitary District 2SSO10157 N Granada Community Services District 2SSO10138 N City of Half Moon Bay 2SSO10139 0 2 0 Y Y Other (specify below) Force Main 4-22-2025 failure on pipe due to material age. 12-9-2025 section of 2 pipe going to the AVRV got fracture from construction equipment. None We are just about at 60 % design with the construction and engineering team to replace older section of force main. 2023 5SSO11039 5S 616 27-MAR-24 Municipal(Public) 212 0 3 1 0 1 3 0 0 0 4 None 2 4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 212 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 3 0 2 2 5SSO11039 River Pines CS, , River Pines, CA 95669 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A N/A Jetting mainlines 2024 5SSO11039 5S 616 23-DEC-25 Municipal(Public) 212 0 3 1 0 1 3 0 0 0 4 N/A 2 4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 212 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 3 0 2 2 5B030110001 River Pines WWTP, 14450 Emigrant Trail River Pines, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A N/A Jetting main lines 2025 5SSO11039 5S 616 30-MAR-26 Municipal(Public) 212 0 3 1 0 1 3 0 0 0 4 N/A 2 4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 212 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 3 0 2 2 5B030110001 River Pines WWTP, , River Pines, CA 95675 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A N/A Jetting main lines 2023 2SSO10176 2 616 29-MAR-24 Municipal(Public) 42275 1 9 1 1 1 5 1 0 0 0 N/A 2 87 71 9 12 8 0 0 100 50 49 1 0 0 0 100 11000 0 None 0 0 5 10 30 30 10 10 5 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 0 0 71 21 2417038001 South San Francisco WWTP other agency N N/A 0 0 0 Y Y Other (specify below) No spills reported for 2023 Other (specify below) No system infrastructure failure points reported for 2023 N/A N/A 2024 2SSO10176 2 616 01-APR-25 Municipal(Public) 42550 0 9 1 1 1 4 2 0 0 0 N/A 2 87 71 9 8 0 0 0 100 50 49 1 0 0 0 100 11000 0 None 0 0 5 10 30 30 10 10 5 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 6 0 71 29 2 417038001 E-002, 195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency N N/A 0 0 0 Y Y Debris from Lateral N/A Manhole N/A N/A Our agency has taken action to prevent debris from entering the sewer main during private lateral maintenance. We have notified property owners that contractors must use debris traps, clean-out covers, and proper disposal methods to prevent blockages and SSOs. Increased monitoring and enforcement measures are in place to ensure compliance. These steps support our commitment to maintaining sewer infrastructure and regulatory compliance. 2025 2SSO10176 2 616 26-MAR-26 Municipal(Public) 43991 0 9 1 1 0 5 2 0 0 0 N/A 2 87 71 9 12 8 0 0 100 50 49 1 0 0 0 100 11000 0 None 0 0 5 10 30 30 10 10 5 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 3 0 0 0 0 0 6 0 71 24 2 417038001 E-002, 195 Belle Air Road, South San Francisco, CA 94080 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris from Lateral N/A Lower Lateral N/A N/A Our agency has taken action to prevent debris from entering the sewer main during private lateral maintenance. We have notified the property owners that contractors must use debris traps, clean-out covers, and proper disposal methods to prevent blockages and SSSs. Increased monitoring and enforcement measures are in place to ensure compliance. These steps support our commitment to maintaining sewer infrastructure and regulatory compliance. 2023 5SSO11040 5S 616 29-MAR-24 Municipal(Public) 24844 4 2 2 1 3 0 0 0 0 0 N/A 1 67 5 28 18 3 0 0 0 1 0 0 0 0 0 0 7191 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 40 1 5C500106002 Riverbank WWTP, 23865 South Santa Fe Road, Riverbank, CA 95367 WWTP same agency N NA 1 0 0 N Y Debris-wipes/Non-disposables NA Manhole NA None Additional cleaning 2024 5SSO11040 5S 616 08-MAY-25 Municipal(Public) 24844 4 2 2 1 3 0 0 0 0 0 N/A 1 67 5 28 18 3 0 0 0 1 0 0 0 0 0 0 7191 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 40 1 5C500106002 Riverbank WWTP, 23865 South Santa Fe Road, Riverbank, CA 95367 WWTP same agency N NA 1 0 0 N Y Debris-wipes/Non-disposables NA Manhole NA None Additional cleaning 2023 2SSO10177 2 616 29-MAR-24 Municipal(Public) 30034 6 14 1 2 2 1 0 1 0 0 PACP, MACP. LACP (2 employees) 1 105 68 12 10 2 0 8 100 1 0 0 0 0 0 1 11184 9307 Lower only 48 1 5 29 6 48 11 0 0 0 100 0 0 0 2 0 0 0 0 0 2 1 1 2 2 0 0 0 0 0 6 4 53 22 2SSO10190 SBSA CS, 1400 Radio Road, Redwood City, CA 94065 WWTP other agency Y Y City of Belmont 2SSO10094 Y Scenic Heights County Sanitation District 2SSO10230 Y Emerald Heights County Sanitation District 2SSO10227 Y Devonshire County Sanitation District 2SSO10226 Y Harbor Industrial District - less than one mile of main NA NA 0 0 0 N Y Construction Diversion Failure NA Gravity Mainline NA NA Annual CIP projects: 1) Replace lower laterals project, 2) Replace scheduled sewer mains, 3) On-call sewer main replacement not scheduled in project 2) above, 4) Annual root foaming project and 5) CCTV inspection. In addition, hire Fischer Compliance, LLC to perform internal audit and further identify area of concerns. 2024 2SSO10177 2 616 18-DEC-25 Municipal(Public) 30034 4 17 2 3 3 2 1 1 0 0 PACP MACP LACP two employees hold. 1 105 68 12 10 2 0 8 100 1 0 0 0 0 0 1 11184 9307 Lower only 48 1 5 29 6 48 11 0 0 0 100 0 0 0 2 0 0 0 0 0 2 1 1 2 2 0 0 0 0 0 6 4 47.3 2 2 417037001 San Francisco Bay, , CA WWTP other agency Y Y City of Belmont 2SSO10094 Y Scenic Heights County Sanitation District 2SSO10230 Y Emerald Heights County Sanitation District 2SSO10227 Y Devonshire County Sanitation District 2SSO10226 Y Harbor Industrial District - less than one mile of main NA NA 1 0 0 N Y Root Intrusion NA Gravity Mainline NA 0 Annual CIP projects: 1) Replace lower laterals project, 2) Replace scheduled sewer mains, plus the laterals on main 3) On-call sewer main replacement not scheduled in project 4) CCTV inspection in response to blockages/spills In addition, hire Fischer Compliance, LLC to perform internal audit and further identify area of concerns. 2025 2SSO10177 2 616 13-MAR-26 Municipal(Public) 30034 4 17 2 3 4 4 0 2 0 0 PACP MACP LACP two employees hold. 1 105 68 12 10 2 0 8 100 1 0 0 0 0 0 1 11184 9307 Lower only 48 1 5 29 6 48 11 0 0 0 100 0 0 0 2 0 0 0 0 0 2 1 1 2 2 0 0 0 0 0 6 4 39 2 2 417037001 SBSA CS, 1400 Radio Road, Redwood City, CA 94065 WWTP other agency Y Y City of Belmont 2SSO10094 Y Scenic Heights County Sanitation District 2SSO10230 Y Emerald Heights County Sanitation District 2SSO10227 Y Devonshire County Sanitation District 2SSO10226 Y Harbor Industrial District - less than one mile of main NA NA 1 0 0 N Y Root Intrusion NA Gravity Mainline NA 0 Annual CIP projects: 1) Replace lower laterals project, 2) Replace scheduled sewer mains, plus the laterals on main 3) On-call sewer main replacement not scheduled in project 4) CCTV inspection in response to blockages/spills 5) pump station assessment 2023 4SSO10502 4 616 03-APR-24 Municipal(Public) 168547 22 250 16 8 127 17 11 8 0 281 1 101 0 84 14 1 1 0 100 0 0 0 100 0 0 100 12064 0 None 0 0 3 5 8 32 52 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 93 1 4B190107013 24501 South Figueroa Street, Carson, CA 90745 WWTP same agency N 0 0 6 Y Y Root Intrusion Gravity Mainline No ongoing spill investigations Any known hydraulic deficiency is addressed with a Capital Improvement project 2024 4SSO10502 4 616 21-MAY-25 Municipal(Public) 168547 30 256 19 12 109 18 11 8 0 188 NA .6 100.8 0 85 14 1 0 0 100 0 0 0 100 0 0 100 12064 0 None 0 0 3 5 8 32 51 1 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .6 116.7 22.1 4B190106002 Carson Plant WWTP other agency N NA 0 0 6 Y Y Root Intrusion NA Gravity Mainline NA No ongoing spill investigations Any known deficiency is addressed with a capital improvement project 2025 4SSO10502 4 616 01-APR-26 Municipal(Public) 168547 35 250 19 12 110 20 11 8 0 196 NA .6 100.8 0 85 14 1 0 0 100 0 0 0 100 0 0 100 12062 0 None 0 0 3 5 8 32 51 1 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .6 105.9 1.4 4B190106002 Carson Plant, CA WWTP other agency N NA 0 0 6 Y Y Root Intrusion NA Gravity Mainline NA No ongoing spill investigations Any known or identified System deficiency is addressed with an appropriate Capital improvement project or modification in maintenance schedule 2023 2SSO10179 2 616 29-MAR-24 Municipal(Public) 1076690 55 84 15 9 3 0 0 0 0 0 NA 11 2028 58 21 13 5 3 0 100 13 6 36 22 24 0 100 198045 216 None 1 1 7 12 43 20 1 0 0 16 100 0 1 1 0 0 0 0 0 0 2 0 7 4 3 1 0 0 0 0 15 0 1082 398 2SSO10179 San Jose City CS WWTP same agency 2SSO10156 Milpitas City CS, 455 East Calaveras , Milpitas, CA 95035 WWTP other agency 2 438014001 San Jose/Santa Clara WPCP WWTP same agency Y Y West Valley Sanitation District 2SSO10217 Y Burbank Sanitation District 2SSO10098 Y Cupertino Sanitation District (portion) 2SSO10125 Y Sunnyvale Sanitation District (portion) 2SSO10200 Y City of Santa Clara Collection System 2SSO10187 NA 352 5 251 Y Y Other (specify below) The most prevalent cause of SSOs in 2023 was Grease/FOG (17 of 32 SSOs). Causes for the largest SSOs in 2023 were Pipe Structural Problem/Failure (Spill Event 887414), Root Intrusion (Spill Event 886989), and Rainfall Exceeded Design for Separate Collection System (Spill Event 885584). Gravity Mainline The most prevalent failure points causing SSOs in 2023 were gravity mainlines (29 of 32 SSOs). Other failure points in 2023 include a Force Main that was vandalized (Spill Event 891324) and a twin siphon that was plugged with grease (Spill Event 891691). NA/None Please see attached document named 2023_SanJose_CS_SSO_Corrective_Actions . 2024 2SSO10179 2 616 29-MAR-25 Municipal(Public) 1084780 54 74 16 8 2 0 0 0 0 0 0 11 2027 58 21 13 5 3 0 100 13 6 36 21 24 0 100 197433 216 None 1 1 7 11 41 23 1 0 0 16 100 0 1 1 0 0 0 0 0 0 2 0 7 4 3 1 0 0 0 0 15 0 920 460 2SSO10179 San Jose City CS WWTP same agency 2SSO10156 Milpitas City CS, 455 East Calaveras , Milpitas, CA 95035 WWTP other agency 2 438014001 San Jose/Santa Clara WPCP WWTP other agency Y Y West Valley Sanitation District 2SSO10217 Y Burbank Sanitation District 2SSO10098 Y Cupertino Sanitation District (portion) 2SSO10125 Y Sunnyvale Sanitation District (portion) 2SSO10200 Y City of Santa Clara Collection System 2SSO10187 357 5 250 Y Y Fats, Oil and Grease (FOG) The most prevalent cause of the SSOs in 2024 was Grease/FOG (12/30) Gravity Mainline None See attached 2025 2SSO10179 2 616 31-MAR-26 Municipal(Public) 997368 47 85 16 8 0 0 0 0 0 0 11 2025 58 22 13 4 2 0 100 30 10 26 19 16 0 100 197291 190 None 1 1 10 14 41 17 1 0 0 16 100 0 0 1 1 0 0 0 0 0 2 0 6 4 4 1 0 0 0 0 15 0 879 103 2 438014001 San Jose/Santa Clara WPCP WWTP same agency Y N West Valley Sanitation District 2SSO10217 N Burbank Sanitation District 2SSO10098 N Cupertino Sanitation District (portion) 2SSO10125 N City of Milpitas 2SSO10156 N City of Santa Clara Collection System 2SSO10187 Yes, City of San Jose, 2SSO10179, No, County Sanitary District 2-3, 2SSO10123 352 5 251 Y Y Fats, Oil and Grease (FOG) Other (specify below) The most prevalent failure point causing SSOs in 2025 were gravity mains (35/36). The other failure point in 2025 was a Pump Station mechanical failure. None See Attachment 2023 5SSO11044 5S 616 05-JAN-26 Airport 32000 0 0 2 1 0 0 0 0 0 0 Services are contracted. .5 6.3 10 40 25 25 0 0 100 100 0 0 0 0 0 100 50 50 Upper and Lower .5 0 5 40 55 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Increase in preventative maintenance jetting of problematic building plumbing prior to entering laterals. 2024 5SSO11044 5S 616 05-JAN-26 Airport 32000 0 0 2 1 0 0 0 0 0 0 Services are contracted .5 6.3 10 40 25 25 0 0 100 100 0 0 0 0 0 100 50 50 Upper and Lower .5 0 5 40 55 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Increase in preventative maintenance jetting of problematic building plumbing prior to entering laterals. 2025 5SSO11044 5S 616 05-JAN-26 Airport 32000 0 0 2 1 0 0 0 0 0 0 Services are contracted. .5 6.3 10 40 25 25 0 0 100 100 0 0 0 0 0 100 50 50 Upper and Lower .5 0 5 40 55 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 6.3 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Increase in preventative maintenance jetting of problematic building plumbing prior to entering laterals. 2023 2SSO10181 2 616 27-MAR-24 Municipal(Public) 71000 3 8 1 1 6 2 0 0 0 0 NA 3 122 50 25 19 5 0 0 100 23 8 69 0 0 0 100 19000 19 None 0 1 1 1 20 55 20 2 0 0 100 0 1 2 4 2 0 0 0 0 9 0 1 1 1 0 0 0 0 0 3 1 288 8 2 019037001 City of San Leandro Water Pollution Control Plant 3000 Davis Street, San Leandro CA 94577 WWTP same agency 2SSO10163 Oro Loma Sd CS, 2600 Grant Avenue, San Lorenzo, CA 94580 WWTP other agency N 2 0 1 Y Y Pipe Structural Problem/Failure - Installation Gravity Mainline None The City has an active point repair program that address deficiencies as they are located in the sanitary sewer system. In addition, locations that are known to have grease or other obstructions are checked weekly as part of the hot spot program. These actions have resulted in a low SSO rate. 2024 2SSO10181 2 616 25-MAR-25 Municipal(Public) 71000 6 7 2 1 9 4 1 0 0 0 N/A 3 122 50 25 19 5 0 0 100 23 8 69 0 0 0 100 19000 19 None 0 1 1 1 20 55 20 2 0 0 100 0 1 2 4 2 0 0 0 0 9 0 1 1 1 0 0 0 0 0 3 1 292 5.5 2 019037001 City of San Leandro Water Pollution Control Plant 3000 Davis Street, San Leandro CA 94577 WWTP same agency 2SSO10163 Oro Loma Sd CS, 2600 Grant Avenue, San Lorenzo, CA 94580 WWTP other agency N N/A 2 0 1 Y Y Pipe Structural Problem/Failure - Installation N/A Gravity Mainline N/A N/A The City of San Leandro has an active sewer repair program that addresses deficiencies in the sewer system as they're located. We also have a weekly hot spot program that addresses areas we know that have high amounts of FOG and other obstructions. This preventative maintenance program has led to a low SSO rate. 2025 2SSO10181 2 616 23-MAR-26 Municipal(Public) 71000 2 11 2 1 5 8 2 0 0 0 N/A 3 122 50 25 19 5 1 0 100 23 8 69 0 0 0 100 19000 19 None 0 1 1 1 20 55 20 2 0 0 100 0 1 2 4 2 0 0 0 0 9 0 1 1 1 0 0 0 0 0 3 1 272.5 14.6 2 019037001 City of San Leandro Water Pollution Control Plant 3000 Davis Street, San Leandro CA 94577 WWTP same agency 2 019032001 Oro Loma/Castro Valley SD WPCP, 2600 Grant Avenue, San Lorenzo, CA 94580 WWTP other agency N N/A 2 0 1 Y Y Pipe Structural Problem/Failure - Installation N/A Gravity Mainline N/A N/A The City of San Leandro has an active sewer repair program that addresses deficiencies in the sewer system as they're located. We also have a weekly hot spot program that addresses areas we know that have high amounts of FOG and other obstructions. This preventative maintenance program has led to a low SSO rate. 2023 5SSO11045 5S 616 19-MAR-24 Municipal(Public) 1600000 22 110 41 19 18 13 8 17 0 0 Other staff certifications: 83 54 111 0 0 2 20 78 0 100 0 0 1 20 79 0 100 0 0 None 0 0 54 38 7 0 0 0 0 0 100 0 7 1 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 5A34NC00114 EchoWater Resource Recovery Facility, 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP same agency Y N Sacramento Area Sewer District 5SSO10912 N West Sacramento CS 5SSO11082 N City of Folsom 5SSO10893 N City of Sacramento Utilities CS 5SSO10901 N City of Sacramento Combined CS 5SSO10901-C N/A 71 38 3 Y Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A SacSewer contacted the Sacramento Municipal Utility District to reestablish power to the pump station on January 8, 2023. SacSewer will assess the generator, pump station equipment, and instrumentation to ensure reliable operations. 2024 5SSO11045 5S 616 18-AUG-25 Municipal(Public) 1600000 20 123 44 17 25 6 10 17 0 0 4 - Automotive Svc Excellence, 2 - Backflow Prevention Assembly Tester, 11 - CA Board of Professional Engineers, 1 - ISA - Certified Control Systems Technician, 77 - Medical Certificate, 2 - Welder Certificate, 1 - Water Treatment Plant Operator, 8- Bilingual Certificates 58 111 0 0 2 20 78 0 100 0 0 1 20 79 0 100 0 0 None 0 0 54 38 7 0 0 0 0 0 100 0 7 1 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 .1 5A340108002 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP same agency Y Y Sacramento Area Sewer District 5SSO10912 N West Sacramento CS 5SSO11082 N City of Folsom 5SSO10893 N City of Sacramento Utilities CS 5SSO10901 N City of Sacramento Combined CS 5SSO10901-C 73 38 3 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Force Main N/A SacSewer has a Pump Station Condition Assessment program. The following activities address any pump station deficiencies found: • Perform Business Case Evaluations. • Adjust Schedule/Method of Preventive Maintenance. • Repaired Facilities or Replaced Defects. The majority of interceptor pipeline systems were designed prior to aggressive conservation methods, so capacity deficiencies are not an issue; however, the Interceptor Capacity Plan (ICP) evaluates capacity regularly to confirm availability. If any deficiencies are found in the interceptor pipeline system, they are addressed as corrective maintenance. 2025 5SSO11045 5S 616 26-MAR-26 Municipal(Public) 1600000 27 123 38 17 20 32 6 11 0 0 1- Automotive Svc Excellence, 2 - Backflow Prevention Assembly Tester, 6 - Bilingual/Oral/Write, 17 - CA Board of Professional Engineers, 1 - ISA - Certified Control Systems Technician, 74- Medical Certificate, 2 - Welder Certificate 58 113 0 0 2 21 77 0 100 0 0 2 21 77 0 100 0 0 None 0 0 53 38 9 0 0 0 0 0 100 0 7 1 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 5A340108002 EchoWater Resource Recovery Facility WWTP same agency Y Y Sacramento Area Sewer District 5SSO10912 N West Sacramento CS 5SSO11082 N City of Folsom 5SSO10893 N City of Sacramento Utilities CS 5SSO10901 N City of Sacramento Combined CS 5SSO10901-C 73 35 3 Y Y Operator Error (specify below) Operator error, due to incorrect configuration of pump controls did not initiate pumps at their programmed set points. Pump Station - Controls N/A SacSewer has a Pump Station Condition Assessment program. The following activities address any pump station deficiencies found: • Perform Business Case Evaluations. • Adjust Schedule/Method of Preventive Maintenance. • Repaired Facilities or Replaced Defects. The majority of interceptor pipeline systems were designed prior to aggressive conservation methods, so capacity deficiencies are not an issue; however, the Interceptor System Capacity Plan (ISCP) evaluates capacity regularly to confirm availability. If any deficiencies in the interceptor pipelines system are found, they are addressed as corrective maintenance. 2023 2SSO10183 2 616 11-APR-24 Municipal(Public) 104748 3 13 1 1 2 3 1 0 0 0 11 230 58 23 13 5 1 0 100 5 6 41 41 7 0 100 28000 0 None 0 1 4 5 16 51 18 4 0 2 100 14 3 6 9 4 1 0 0 0 37 9 2 0 0 0 0 0 0 0 11 5 310 41.6 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP same agency Y N City of Belmont 2SSO10094 N Town of Hillsborough 2SSO10142 N Crystal Springs County Sanitary District 2SSO10225 N Tower Road Complex 2SSO10539 0 3 5 Y Y Flow Exceeded Capacity (Separate Collection System Only) Manhole The City is implementing collection system improvements to alleviate wet weather bottlenecks as described further in the individual spill reports. N/A 2024 2SSO10183 2 616 31-DEC-25 Municipal(Public) 105661 4 14 1 1 4 3 1 0 0 0 11 230 58 23 13 5 1 0 100 5 6 41 41 7 0 100 28000 0 None 0 1 4 5 16 51 18 4 0 1 100 15 3 6 9 4 1 0 0 0 38 10 2 0 0 0 0 0 0 0 12 5 355 43 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP same agency Y N City of Belmont 2SSO10094 N Town of Hillsborough 2SSO10142 N Crystal Springs County Sanitary District 2SSO1225 N Tower Road Complex 2SSO10539 0 3 5 Y Y Flow Exceeded Capacity (Separate Collection System Only) Manhole The city is implementing collection system improvements to alleviate wet weather bottlenecks as described further in the individuals spill reports. N/A 2025 2SSO10183 2 616 27-MAR-26 Municipal(Public) 105661 2 14 2 1 3 3 0 0 0 0 N/A 11.6 230 58 23 15 4 0 0 100 4 7 37 31 21 0 100 28000 53 Upper and Lower .6 2 4 4 16 48 20 4 0 2 100 3 4 2 3 2 0 0 0 0 0 1 1 3 3 2 0 0 0 0 0 5 296 32.8 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP same agency N N City of Belmont 2SSO10094 N Town of Hillsborough 2SSO10142 N Crystal Springs County Sanitary District 2SSO1225 N Tower Rd. Complex 2SSO101339 N/A 40 9 5 Y Y Root Intrusion Gravity Mainline None Annual Root foaming, Yearly Basin inspection and repair through Clean Water Program 2023 5SSO11047 5S 616 27-MAR-24 Municipal(Public) 13866 0 5 0 2 0 0 0 0 0 0 NA 4 39 30 25 25 20 0 0 100 0 0 0 0 0 100 100 4249 0 None 0 0 0 76 0 24 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 4 1 8 1 5C500107001 Salida WWTP, 6200 Pirrone Road, Salida, CA 95368 WWTP same agency N NA NA NA 4 2 0 Y Y Other (specify below) No spills occurred during the 2023 reporting year. Other (specify below) No spills occurred during the 2023 reporting year. NA NA 2024 5SSO11047 5S 616 25-MAR-25 Municipal(Public) 13886 0 5 0 2 0 0 0 0 0 0 NA 4 39 30 25 25 20 0 0 100 0 0 0 0 0 100 100 4250 0 None 0 0 0 76 0 24 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 4 1 5.7 0 5C500107001 Salida WWTP, 6200 Pirrone Road, Salida, CA 95368 WWTP same agency N NA NA NA 4 2 0 Y Y Other (specify below) No major spill(s) occurred during the 2024 reporting year. Other (specify below) No spills occurred during the 2024 reporting year. NA NA 2025 5SSO11047 5S 616 25-MAR-26 Municipal(Public) 13886 0 5 0 2 0 0 0 0 0 0 NA 4 39 30 25 25 20 0 0 100 0 0 0 0 0 100 100 4250 0 None 0 0 0 76 0 24 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 4 1 .3 0 5C500107001 Salida WWTP, 6200 Pirrone Road, Salida, CA 95368 WWTP same agency N NA NA NA 4 2 0 Y Y Other (specify below) No spills occurred during the 2025 reporting year. Other (specify below) No spills occurred during the 2025 reporting year. NA NA 2023 2SSO10184 2 616 02-APR-24 Municipal(Public) 43122 2 8 0 3 2 1 0 0 0 0 13 131 68 14 16 2 0 0 100 12 13 27 39 6 3 100 11022 0 None 0 1 7 12 30 15 2 0 0 33 100 0 0 10 40 50 0 0 0 0 100 0 4 44 39 9 0 0 0 4 100 0 161 121 21I000810 Central Marin Sanitation Agency, 1301 Andersen Dr WWTP other agency N 0 2 1 Y Y Other (specify below) Pipe Structural Problem/Failure, i.e. offset joints, broken section of pipe Gravity Mainline None Add sewer to Preventative Maintenance Program, Add to Rehab/Replace sewer in upcoming project, or replace ASAP. 2024 2SSO10184 2 616 12-DEC-25 Municipal(Public) 43122 2 8 0 3 1 1 0 0 0 0 13 131 68 14 16 2 0 0 100 12 13 27 39 6 3 100 11022 0 None 0 2 7 12 30 15 2 0 0 32 100 0 0 1 3 6 0 0 0 0 10 0 1 10 10 1 0 0 0 1 23 0 163 9 2 215116001 Central Marin San. Agcy. WWTP, 1301 Anderson Drive, San Rafael, CA 94901-5339 WWTP other agency N 0 2 1 Y Y Pipe Structural Problem/Failure - Controls Pipe Structural Failure (offset joints, pipe collapse); next is debris/rag/fog combo Gravity Mainline none Add sewer to Preventative Maintenance Program; add Rehab/Replace Sewer on Upcoming project; or replace pipe section ASAP. 2023 5SSO11048 5S 616 28-MAR-24 Municipal(Public) 2783 1 4 2 1 0 1 2 1 1 0 0 1 18 76 18 5 1 0 0 100 100 0 0 0 0 0 0 1170 0 None 0 3 2 20 75 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 9 1 5SSO11048 San Andreas CS, , San Andreas, CA 95249 WWTP same agency N N/A 0 0 0 Y Root Intrusion N/A Gravity Mainline N/A NA NA 2024 5SSO11048 5S 616 19-DEC-25 Municipal(Public) 2783 1 5 3 1 0 5 0 0 0 0 0 .3 18 76 18 5 1 0 0 100 100 0 0 0 0 0 100 1260 0 None 0 7 2 20 71 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 13.1 1 5B050103001 San Andreas Sanitary District, 675 Gold Oak Road, San Andreas, CA WWTP same agency N N/A 12 0 0 N Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2025 5SSO11048 5S 616 13-JAN-26 Municipal(Public) 2783 1 5 3 1 1 4 0 0 0 0 0 .3 18 76 18 5 1 0 0 100 100 0 0 0 0 0 100 1260 0 None 0 8 2 20 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 9.5 1.1 5B050103001 San Andreas Sanitary District, 675 Gold Oak Rd, San Andreas, CA 95249 WWTP same agency N N/A 12 0 0 N Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2024 2SSO10185 2 616 01-APR-25 Municipal(Public) 11500 0 0 0 0 4 1 0 0 0 0 5.5 43.4 57 20 10 2 0 0 89 2 2 3 4 0 0 11 6000 10 None .1 6 23 28 31 11 1 0 0 0 100 1 8 6 0 0 0 0 0 0 15 0 0 4 0 0 0 0 0 0 4 0 26.8 1.4 2 215116001 Central Marin San. Agcy. WWTP, 1301 Anderson Drive, San Rafael, CA 94901-5339 WWTP other agency N 13 3 2 N Y Other (specify below) The three spills in 2024 were due to construction damage, debris-wipes, and root intrusion Gravity Mainline None Increased cleaning and inspections of pipes with failures 2025 2SSO10185 2 616 30-MAR-26 Municipal(Public) 12000 0 0 0 0 4 1 0 0 0 0 N/A 5.5 43.4 53 22 10 3 0 0 88 2 3 3 4 0 0 12 6000 10 None 0 35 26 29 9 1 0 0 0 0 100 0 2 2 1 0 0 0 0 0 5 5 6 2 1 0 0 0 0 0 14 0 37 3.4 215116001 Central Marin San. Agcy. WWTP, 1301 Anderson Drive, San Rafael, CA 94901-5339 WWTP other agency N N/A 13 3 2 N Y Root Intrusion N/A Gravity Mainline N/A None The Town has recently completed a Sewer Master Plan in 2024 and have been systematically replacing all category 5 sewer pipes to fix the worst condition pipes in the system. We also address any issues with gravity mainlines after there is a spill and increase pipe cleaning as needed to address root growth or FOG buildup. 2023 5SSO11051 5F 616 26-MAR-24 Prison 2600 0 8 4 1 0 0 0 0 0 0 N/A 0 3 90 5 0 5 0 0 100 0 0 0 0 0 0 0 80 80 Upper and Lower 1 0 0 40 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 1 5 1 5SSO11051 Sierra Conservation Center, 5100 Obyrnes Ferry Road, Jamestown, CA 95327 WWTP same agency N N/A 0 0 0 N Y Other (specify below) No known causes for major spills, if a spill were to occur, that spill would recirculate back to the head works. Other (specify below) Screw pump could possibly fail (no history of this failure, just mentioning it could happen), but this leak would recirculate back to the head works. N/A Spill plan in place and preventative maintenance. 2024 5SSO11051 5F 616 05-MAR-25 Prison 2600 0 8 4 1 0 0 0 0 0 0 N/A 0 3 90 5 0 5 0 0 100 0 0 0 0 0 0 0 80 80 Upper and Lower 1 0 0 40 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 0 5SSO11051 5100 O'Byrnes Ferry Road WWTP same agency N N/A 0 0 0 N Y Other (specify below) No known cause for major spills, if a spill were to occur, that spill would recirculate back to the head works. Other (specify below) Screw pump could possibly fail, but this failure would recirculate back to head works. N/A Spill plan in place and preventative maintenance. 2025 5SSO11051 5F 616 01-APR-26 Other 2600 0 8 4 1 0 0 0 0 0 0 0 3 90 5 0 5 0 0 100 0 0 0 0 0 0 0 80 80 Upper and Lower 1 0 0 40 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 1 5 1 5SSO11051 5100 O'Byrnes Ferry Road WWTP same agency N 0 0 0 N Y Other (specify below) No known causes for major spills, if a spill were to occur, that spill would recirculate back to the head works. Other (specify below) Screw pump could possibly fail (no history of this failure, just mentioning it could happen), but this leak would recirculate back to the head works. N/A Spil plan reviewed and preventative maintenance performed. 2023 2SSO10188 2 616 12-APR-24 Municipal(Public) 29500 0 8 3 1 3 1 0 0 0 6 3.5 5.5 0 7 72 21 0 0 100 0 19 41 40 0 0 100 0 0 None 0 10 10 10 60 20 0 0 0 0 100 3 3 3 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 2 2 2215015001 SASM, 450 Sycamore Avenue, Mill Valley, CA 94941 WWTP same agency Y N Almonte SD (Sanitary District) N/A N Alto SD N/A N City of Mill Valley N/A N Homestead SD N/A 2 1 0 N Y Other (specify below) No Major spill in 2023. Other (specify below) No System Infrastructure failure points identified in 2023. N/A N/A 2024 2SSO10188 2 616 05-NOV-25 Municipal(Public) 29500 1 8 3 1 3 1 0 0 0 6 3.5 5.5 0 7 72 21 0 0 100 0 19 41 40 0 0 100 0 0 None 0 10 10 10 60 20 0 0 0 0 100 0 3 3 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 2.9 2.9 2 215015001 SASM WWTP Discharge Point 001, , Mill Valley, CA WWTP same agency Y N Almonte SD (Sanitary District) N/A N Alto SD N/A N City of Mill Valley N/A N Homestead SD N/A N Richardson Bay SD N/A Tamalpais Community Services District 2 1 0 Y Y Other (specify below) No major spills in 2024. Other (specify below) No system infrastructure failure points identified in 2024. N/A N/A 2025 2SSO10188 2 616 04-MAR-26 Municipal(Public) 29500 1 8 3 1 3 1 0 0 0 6 3.5 3.5 0 7 72 21 0 0 100 0 19 41 40 0 0 100 0 0 None 0 14 10 10 60 16 0 0 0 0 100 0 3 3 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 3.5 3 3 2215015001 SASM, 450 Sycamore Avenue, Mill Valley, Ca 94941 WWTP same agency N N Almonte SD (Sanitary District) N/A N Alto SD N/A N City of Mill Valley N/A N Homestead SD N/A N Richardson Bay SD N/A Tamalpais Community Services District 4 4 0 Y Y Other (specify below) No Major Spills in 2025 Other (specify below) No System Infrastructure failure points identified in 2025. N/A N/A 2024 2SSO10189 2 616 01-APR-25 Municipal(Public) 18000 0 4 1 2 1 4 4 0 0 0 N/A 4 7 72 2 5 21 0 0 100 2 3 60 35 0 0 100 2000 0 None 0 0 0 35 60 5 0 0 0 0 100 1 0 0 1 2 0 0 0 0 4 0 0 0 2 1 0 0 0 0 3 1 4 1 CA0038067 SMCSD, 1 East Road Sausalito CA 94965 WWTP same agency Y N Tamalpais Community Services District 2SSO10202 N City of Sausalito 2SSO10114 N National Park Service (GGNRA) Federal N/A 2 0 0 Y Y Other (specify below) No major spills experienced this year. Other (specify below) No major failures experienced this year. none None 2025 2SSO10189 2 616 20-MAR-26 Municipal(Public) 18000 0 5 2 2 1 4 5 0 0 0 4.2 29 72 2 5 21 0 0 100 2 3 60 35 0 0 100 6500 0 None 0 0 0 35 40 25 0 0 0 0 100 0 1 0 0 2 0 0 0 0 3 1 3 2 1 0 0 0 0 0 7 2 9.3 5.3 215023001 Sausalito CS, 1 East Road, Sausalito, CA 94965 WWTP same agency Y N Tamalpais Community Services District 2SSO10202 N National Park Service GGNRA Federal N/A 1 0 0 Y Y Other (specify below) No Major Spills Reported Other (specify below) No major Infrastructure failure points None None 2023 2SSO10190 2 616 02-APR-24 Municipal(Public) 225000 4 23 6 3 1 4 4 6 0 0 Plant Certified Treatment Operators also performs planned maintenance at pump stations. force main ARV's and are involved with spill response. 9 3 0 0 0 0 100 0 100 0 0 0 32 68 0 100 0 0 None 0 26 16 0 58 0 0 0 0 0 100 1 0 0 3 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2SSO10190 SBSA CS, 1400 Radio Road, Redwood City, CA 94065 WWTP same agency Y N WestBay Sanitary District 2SSO10215 N Redwood City 2SSO10168 N San Carlos 2 411538M17 N Belmont 2SSO10094 0 5 0 Y Y Other (specify below) No Major Spills Air Relief Valve (ARV)/ Blow-Off Valve (BOV) FM bell and spigot O ring failure on 54-inch FM. Repair clamp was installed, and 54-inch FM force main is now out of service as newly commissioned gravity tunnel is now in-service. None SVCW Regional Environmental Sewer Conveyance Upgrade (RESCU) Project. Replaced concrete segmented forcemains with HDPE fused piping, installed 3.33 miles of 11 ft. diameter gravity tunnel for conveyance to the treatment facility, replaced various forcemains with gravity mains, upgraded 1-pump station, replacing 1-pump station, eliminated 2-pump stations with gravity drop structures into the new tunnel. Installed a new receiving lift station at the treatment plant along with a new headworks structure. 2024 2SSO10190 2 616 26-DEC-25 Municipal(Public) 225000 12 20 6 3 3 4 5 6 0 0 4.7 4.2 0 0 0 10 37 0 47 0 0 0 31 22 0 53 0 0 None 0 47 22 0 31 0 0 0 0 0 100 2 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 8.9 6.1 0 2 417037001 Silicon Valley Clean Water, 1400 Radio Road, Redwood City, CA 94065 WWTP same agency Y N WestBay Sanitary District 2SSO10215 N Redwood City 2SSO10168 N San Carlos 2 411538M17 N Belmont 2SSO10094 1 3 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) The system spill this year was caused by a faulty automatic air relief (ARV). From the investigation it was determined the best course of action would be to replace the ARV with a different manufacture. A maintenance work order has been generated for the replacement. Until the ARV is replaced the air relief is being operated in manual only on a set planned maintenance schedule. Nearing completion of SVCW Regional Environmental Sewer Conveyance Upgrade (RESCUE) Project. Completed and placed in-service 4,654 Ft Gravity Sewer Line of 36 Inch Cast Fiberglass Reinforced Polymer Mortar Pipe. Commissioned 1 new pump station. Decommissioned 2 pump stations replaced with gravity lines. 2025 2SSO10190 2 616 27-MAR-26 Municipal(Public) 225000 10 18 6 3 4 3 6 4 0 0 We have a total of 18 certified licensed WWTP operators, including both operators and supervisors. They are trained in spill response, operate pump stations both locally and through SCADA, and perform preventive maintenance on pump stations and conveyance systems. 4.7 4.1 0 0 0 10 37 0 47 0 0 0 31 22 0 53 0 0 None 0 47 22 0 31 0 0 0 0 0 100 2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 8 4.1 0 2 417037001 Silicon Valley Clean Water 1400 Radio Rd, Redwood City 94065,CA WWTP same agency Y N WestBay Sanitary District 2SSO10215 N Redwood City 2SSO10168 N San Carlos 2 411538M17 N Belmont 2SSO10094 NA 1 3 0 Y Y Other (specify below) No major spills Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA None N/A 2023 2SSO10104 2 616 28-MAR-24 Airport 170000 8 10 3 3 0 1 0 1 0 0 The Chief Operator has an Advanced Water Treatment certification 16 16 62 13 22 3 0 0 100 43 13 19 21 4 0 100 0 0 Upper and Lower 30 0 44 39 16 1 0 0 0 0 100 0 10 8 12 0 0 0 0 0 30 0 1 1 1 0 0 0 0 0 3 0 0 0 2SSO10104 Ccsf - San Francisco Airport CS, P.O. Box 8097 , San Francisco, CA 94128 WWTP same agency Y N United States Coast Guard NA 0 0 0 Y Y Debris-General Lower Lateral NA Note: for sections 5d-5f and 16: SFIA owns 100% of the sewer system. Upper and lower lateral have no meaning as there is no private property connected to the system. Our information only includes force and gravity. The gravity sections are not distinguished by lateral or main. Generally SFIA maintains all of the sewer system including the laterals, but responsibility for laterals varies from tenant to tenant based on lease agreement. SFIA has retained a consultant to assist us with a Sewer Prioritization Program for inspection and maintenance of the sewer system. 2024 2SSO10104 2 616 06-JAN-26 Airport 170000 1 17 6 1 4 8 8 2 2 0 One manager holds AWTO certification 16 16 62 13 22 3 0 0 100 43 13 19 21 4 0 100 0 0 Upper and Lower 30 0 44 39 16 1 0 0 0 0 100 0 10 8 12 0 0 0 0 0 30 0 1 1 1 0 0 0 0 0 3 0 0 0 2 417033001 building 910, San Francisco, ca 94128 WWTP same agency Y N United States Coast Guard NA 0 0 0 Y Y Debris-General Lower Lateral NA Note: for sections 5d-5F and 16: SFIA owns 100% of the sewer system. Upper and lower lateral have no meaning as there is no private property connected to the system. Generally SFIA maintains all of the sewer system including laterals, but responsibility for laterals varies from tenant to tenant based upon lease agreement. A comprehensive risk assessment of the entire system was conducted in 2024 and a risk profile was developed for all pipes. 2025 2SSO10104 2 616 26-MAR-26 Airport 170000 0 16 6 1 3 8 6 2 2 0 One manager holds AWTO certification 16 16 62 13 22 3 0 0 100 43 13 19 21 4 0 100 0 0 Upper and Lower 30 0 44 39 16 1 0 0 0 0 100 0 10 8 12 0 0 0 0 0 30 0 1 1 1 0 0 0 0 0 0 0 0 0 2 417033001 PO Box 8097 San Francisco, CA 94128 WWTP same agency Y N United States Coast Guard NA 0 0 0 Y Y Debris-General Lower Lateral NA Note: for sections 5d-5F and 16: SFIA owns 100% of the sewer system. Upper and lower lateral have no meaning as there is no private property connected to the system. Generally SFIA maintains all of the sewer system including laterals, but responsibility for laterals varies from tenant to tenant based upon lease agreement. A comprehensive risk assessment of the entire system was conducted in 2024 and a risk profile was developed for all pipes. 2023 5SSO11054 5S 616 29-MAR-24 Municipal(Public) 85775 6 15 4 4 5 6 6 5 0 16 See attached Certification Summary. 7 290 58 23 15 3 1 0 100 77 17 6 0 0 0 100 24320 24320 Lower only 123 3 34 42 14 5 1 0 0 1 100 0 1 2 0 0 0 0 0 0 3 0 3 3 2 0 0 0 0 2 10 0 21 70 5SSO10935 Dry Creek CS, 2005 Hilltop Circle, Roseville, CA 95747 SSS other agency 5SSO11362 SMD No. 2 CS, , Auburn, CA 95603 SSS other agency Y N SMD No. 2 CS 5SSO11362 N/A 77 2 0 Y Y Other (specify below) See the attached Summary of Spills. Root intrusion was the most common spill cause as it has been for many years, but as shown in the attached Summary of Spills, the cause for spills varied with other major causes starting to arise (e.g., low flow plumbing fixtures not being able to sufficiently transport toilet paper). Other (specify below) See the attached Summary of Spills. As shown in the attached Summary of Spills the failure points for the spills occurring during 2023 varied. See the attached Summary of Spills. See the attached Summary of Spills. 2024 5SSO11054 5S 616 28-MAR-25 Municipal(Public) 86965 3 17 3 4 7 6 7 5 0 18 See attached Certification Summary. 6.8 292.5 58 23 15 3 1 0 100 77 17 6 0 0 0 100 24467 24467 Lower only 123.7 3 34 42 14 5 1 0 0 1 100 0 1 2 0 0 0 0 0 0 3 0 3 4 2 0 0 0 0 1 10 0 28.4 62.5 5SSO10935 Dry Creek CS, 2005 Hilltop Circle, Roseville, CA 95747 SSS other agency 5SSO11362 SMD No. 2 CS, , Auburn, CA 95603 SSS other agency Y N SMD No. 2 CS 5SSO11362 N/A 76 2 0 Y Y Other (specify below) See the attached Summary of Spills. Root intrusion was the most common spill cause as it has been for many years, but as shown in the attached Summary of Spills, the cause for spills varied with other major causes starting to arise (e.g., low flow plumbing fixtures not being able to sufficiently transport toilet paper). Other (specify below) See the attached Summary of Spills. As shown in the attached Summary of Spills the failure points for the spills occurring during 2024 varied. See the attached Summary of Spills. See the attached Summary of Spills. 2025 5SSO11054 5S 616 31-MAR-26 Municipal(Public) 86965 1 17 4 4 3 6 7 5 0 17 See attached Certification Summary 7 294.1 58 23 15 3 1 0 100 77 17 6 0 0 0 100 22434 22434 Lower only 116.1 5 33 41 14 5 1 0 0 1 100 0 1 2 0 0 0 0 0 0 3 0 3 4 2 0 0 0 0 1 10 0 27.7 64.8 5SSO10935 Dry Creek CS, 2005 Hilltop Circle, Roseville, CA 95747 SSS other agency 5SSO11362 SMD No. 2 CS, , Auburn, CA 95603 SSS other agency Y N SMD No. 2 CS 5SSO11362 N/A 76 2 0 Y Y Root Intrusion See the attached Summary of Spills. The Summary of Spills shows that the cause for spills varied in 2025. Lower Lateral See the attached Summary of Spills. See the attached Summary of Spills. See the attached Summary of Spills. 2023 5SSO11055 5S 616 30-DEC-25 Municipal(Public) 13122 4 9 1 4 0 0 0 0 0 13 16 96 48 21 3 0 0 28 100 3 2 0 0 0 95 100 6228 6228 Lower only 68 20 0 50 30 0 0 0 0 0 100 0 0 4 0 0 0 0 0 0 4 0 3 8 6 0 0 0 0 0 17 0 11 25 5A170102002 Southeast Regional Waste Disp Fac CS, 2485 Old Hwy 53 , Clearlake, CA 95422 WWTP same agency N 73 24 0 N Y Flow Exceeded Capacity (Separate Collection System Only) Manhole None None 2024 5SSO11055 5S 616 24-FEB-26 Municipal(Public) 13122 3 6 1 4 0 0 1 0 0 8 N/A 16 96 48 21 3 0 0 28 100 3 2 0 0 0 95 100 6228 6228 Lower only 68 20 0 50 30 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 8 6 0 0 0 0 0 17 0 5 0 5A170102002 Southeast Regional Waste Disp Fac CS, 2485 Old Hwy 53 , Clearlake, CA 95422 WWTP same agency N 73 24 0 Y Y Root Intrusion Flow exceeded capacity, root intrusion and F.O.G. are the most common reasons for spills in this area. Manhole None N/A 2025 5SSO11055 5S 616 23-MAR-26 Municipal(Public) 13122 2 6 1 4 0 0 1 0 0 9 16 96 48 21 3 0 0 28 100 3 2 0 0 0 95 100 6228 6228 Lower only 68 20 0 50 30 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 8 6 0 0 0 0 0 17 0 5.1 0 5A170102002 Southeast Regional Waste Disp Fac CS, 2485 Old Hwy 53 , Clearlake, CA 95422 WWTP same agency N 73 24 0 Y Y Root Intrusion Flow exceeded capacity, root intrusion and FOG are the most common reasons for the spills in this area. Manhole None None 2023 2SSO10193 2 616 15-DEC-25 Municipal(Public) 4790 0 44 4 2 0 2 0 2 0 0 1 6 9 43 35 12 0 1 100 83 0 0 17 0 0 100 597 597 Lower only 3 10 72 4 1 2 9 0 2 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 2 386010001 San Francisco Public Utilities Commission / Wastewater Enterprise, 750 Phelps Street, San Francisco, CA 94124 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No major spills in areas of sanitary system in 2023. Other (specify below) No major spills in areas of sanitary system in 2023. None. None. 2024 2SSO10193 2 616 08-DEC-25 Municipal(Public) 4829 0 55 4 2 0 0 2 2 0 0 .4 6.2 8 44 34 12 1 1 100 80 0 20 0 0 0 100 597 597 Lower only 2.6 12 71 4 0 2 9 0 2 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 .4 .5 2 386010001 San Francisco Public Utilities Commission / Wastewater Enterprise, 750 Phelps Street, San Francisco, CA 94124 WWTP same agency N 0 0 0 Y Y Other (specify below) There were no spills in this system in calendar year 2024. Other (specify below) None None None. There were no spills in this system in calendar year 2024. 2025 2SSO10193 2 616 02-APR-26 Municipal(Public) 5016 0 45 4 2 0 2 2 1 0 0 3.3 9.5 8 46 34 10 1 1 100 10 44 38 7 1 0 100 597 594 None 0 33 56 3 0 0 6 0 2 0 100 2 3 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 .9 .5 2 386010001 Southeast Water Pollution Control Plant, San Francisco Public Utilities Commission / Wastewater Enterprise 750 Phelps Street San Francisco, CA 94124 WWTP same agency N 0 0 0 Y Y Other (specify below) NA - there was one spill during the reporting period and it was less than 100 gallons. There is no discernable trend to discern from one spill. Other (specify below) NA - there were no infrastructure failure points during the reporting period. NA NA 2023 5SSO11056 5S 616 22-MAR-24 Municipal(Public) 140 1 2 2 2 4 2 1 2 0 0 Collections System Crew members also hold Distribution Certificates 3 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 112 56 Lower only 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 5SSO11056 Southworth Ranch Estates CS, , San Andreas, CA 95249 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A Cleaned all 56 STEP septic tanks in 2023 2024 5SSO11056 5S 616 19-DEC-25 Municipal(Public) 140 2 1 1 2 2 1 0 1 0 0 Collections system operators are dual certified in Distribution. 3 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 112 56 Lower only 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 5B051003004 Southworth Ranch Estates WWTF, 7466 Leslie Court, Valley Springs, CA 95254 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A System is on a 5-year maintenance plan. Routine checks are performed as well. 2025 5SSO11056 5S 616 23-MAR-26 Municipal(Public) 140 1 3 1 2 2 1 0 1 0 5 Collections system operators are dual certified in Distribution. 3 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 112 56 Lower only 5 0 0 100 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 5B051003004 Southworth Ranch Estates WWTF, 7466 Leslie Court, Valley Springs, CA 95254 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A System is on a 5-year maintenance plan. Routine checks are performed as well. 2023 2SSO10195 2 616 02-APR-24 Municipal(Public) 1300 0 6 2 2 0 1 2 0 0 0 3 10 37 55 8 0 0 0 100 100 0 0 0 0 0 100 380 380 Lower only 2 0 7 13 80 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 2 6 2 494006001 001, , CA WWTP other agency N 3 1 1 Y Y Collection System Maintenance Failure (specify below) Inflow and Infiltration; Extreme Weather Conditions Manhole Updating SECAP None at this time. 2024 2SSO10195 2 616 25-MAR-25 Municipal(Public) 2440 0 6 2 2 0 1 2 0 0 0 NA 3 10 37 55 8 0 0 0 100 100 0 0 0 0 0 100 380 380 Lower only 1.8 0 7 13 80 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 4.2 .4 2 494006001 City of Petaluma WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 1 2 Y Y Flow Exceeded Capacity (Separate Collection System Only) Manhole None at this time None at this time 2025 2SSO10195 2 616 30-MAR-26 Municipal(Public) 2440 0 6 2 2 1 2 0 0 0 0 NA 3 10 37 55 8 0 0 0 100 100 0 0 0 0 0 100 380 380 Lower only 2 0 7 13 80 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2.6 0 2494006001 City of Petaluma WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 5 0 2 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 2SSO10196 2 616 02-APR-24 Municipal(Public) 45000 0 6 2 2 0 1 2 0 0 0 0 133 59 19 12 10 0 0 100 100 0 0 0 0 0 100 10569 10569 Lower only 50 2 10 24 38 26 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 20 49 8 2 494009001 Sonoma Valley County Discharge Point 004, , Santa Rosa, CA WWTP same agency N 1 1 1 Y Y Collection System Maintenance Failure (specify below) Inflow and Infiltration; Extreme Weather Conditions Manhole Updating SECAP Replacing approximately 2 miles of trunk main. Conducted lateral inspections in a portion of collection system, via CCTV. 2024 2SSO10196 2 616 25-MAR-25 Municipal(Public) 39200 0 6 2 2 0 1 2 0 0 0 NA 0 133 59 19 12 10 0 0 100 100 0 0 0 0 0 100 10569 10569 Lower only 50 2 10 24 38 26 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 20 87.3 13.8 2 494009001 Sonoma Valley County Discharge Point 004, , Santa Rosa, CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 1 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole Currently updating the SECAP to identify capacity issues in the collection system. Currently implementing trunk main CIPs. 2025 2SSO10196 2 616 31-MAR-26 Municipal(Public) 39200 0 6 2 2 0 1 2 0 0 0 NA .1 133 59 19 12 10 0 0 100 100 0 0 0 0 0 100 10569 10569 Lower only 50 2 10 24 38 26 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 1 92.5 17.9 2 494009001 Sonoma Valley County Discharge Point 004, , Santa Rosa, CA WWTP same agency Y N Sonoma Developmental Center NA NA 40 1 9 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Manhole NA None at this time None at this time 2023 2SSO10197 2 616 21-MAY-24 Municipal(Public) 5500 0 2 2 1 1 3 0 0 0 0 Currently have two additional staff that are engaged in Sacramento State Certificate Program. City also employs 1 Grade IV Wastewater treatment operators, 1 Grade II Wastewater operator, 1 Grade I Wastewater operator. 4 24 34 42 19 5 0 0 100 100 0 0 0 0 0 0 1784 6 None 0 0 10 40 40 0 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 24 1 2 283014001 St Helena WWRTP 1 Chaix Ln St Helena CA, 94574 WWTP same agency N N/A 1 1 1 Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A Completing CCTV of entire Collections System June 2024 Pursuing in manhole flow monitoring due to high flows caused by storm events June 2024 June 2024- Complete full CCTV inspection of the Collections System December 2024- Develop CIP to address key I and I locations Summer 2025- tentative construction of initial phase to address I and I. 2024 2SSO10197 2 616 03-DEC-25 Municipal(Public) 5386 3 2 2 1 2 2 0 0 0 4 N/A 4 24 60 20 13 2 0 0 95 5 0 0 0 0 0 5 1797 12 Lower only 0 0 10 40 40 0 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 24 24 2SSO10197 St Helena WWRTP 1 Chaix Ln St Helena CA, 94574 WWTP same agency N N/A 1 1 1 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A Completing CCTV of entire Collections System June 2024 Pursuing in manhole flow monitoring due to high flows caused by storm events June 2024 June 2024- Complete full CCTV inspection of the Collections System December 2024- Develop CIP to address key I and I locations Summer 2025- tentative construction of initial phase to address I and I. 2025 2SSO10197 2 616 19-FEB-26 Municipal(Public) 5386 1 4 1 1 2 3 0 0 0 4 .4 24 60 20 13 2 0 0 95 5 0 0 0 0 0 5 1797 12 Lower only 0 0 10 40 40 0 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 24 24 2SSO10197 St Helena WWRTP 1 Chaix Ln St Helena CA, 94574 WWTP same agency N N\A 1 1 1 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/a Gravity Mainline N/a Completing CCTV of entire Collections System June 2024 Pursuing in manhole flow monitoring due to high flows caused by storm events June 2024 June 2024- Complete full CCTV inspection of the Collections System December 2024- Develop CIP to address key I and I locations Summer 2025- tentative construction of initial phase to address I and I. 2023 5SSO11060 5S 616 03-APR-24 Municipal(Public) 330 3 18 3 2 4 3 7 0 0 0 Wastewater plant operators are certified by SWRCB: Grade III: 8; Grade IV: 1, Grade V: 1 2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 110 110 Lower only 2 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 5A510101001 City of Yuba City WWTF, 302 Burns Dr, Yuba City, CA 95991 WWTP same agency N 0 0 0 Y Y Root Intrusion NA Lower Lateral NA NA Increased routine maintenance 2024 5SSO11060 5S 616 27-MAR-25 Municipal(Public) 305 1 16 3 2 2 8 4 0 0 0 Wastewater Operational staff are certified by SWRCB: Grade III: 8 Grade IV: 2; Grade V: 1 1.8 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 105 105 Lower only 1 0 0 100 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 105 0 0 0 0 0 0 105 1.8 0 0 5A510101001 Yuba City WWTF, 302 Burns Drive, Yuba City CA 95991 WWTP same agency N N/A 0 0 0 Y Y Debris from Lateral N/A Upper Lateral N/A N/A Continue preventative maintenance every two years or as needed on each individual step system. 2025 5SSO11060 5S 616 01-APR-26 Municipal(Public) 360 0 18 2 1 1 4 4 0 0 0 N/A 1.8 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 110 110 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 110 0 0 0 0 0 0 110 1.8 0 0 5A510101001 Yuba City WWTF, 302 Burns Drive, Yuba City ca 95991 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills Upper Lateral N/A N/A Continue preventative maintenance every two years or as needed on each individual step system. 2023 2SSO10198 2 616 25-MAR-24 Municipal(Public) 35000 0 5 2 1 2 2 0 1 0 0 n/a 1 147 66 16 14 3 1 0 99 1 0 0 0 0 0 1 13000 1 None 0 7 22 8 1 50 12 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 189 49 2 019014001 001-EBMUD, , CA WWTP same agency N 7 0 1 Y Y Debris-wipes/Non-disposables Gravity Mainline None. Increased cleaning frequency. Repaired lines. Notices issued to educate all upstream residents on best practices to prevent overflows including the proper disposal of flushable wipes. 2024 2SSO10198 2 616 31-MAR-25 Municipal(Public) 35000 1 4 2 1 3 0 1 1 0 0 n/a 1 147 63 18 14 3 1 0 99 1 0 0 0 0 0 1 13000 1 None 0 11 22 8 1 48 10 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 198 39 2 019014001 001-EBMUD, , CA WWTP same agency N 7 0 1 Y Pipe Structural Problem/Failure - Controls Gravity Mainline None Repaired lines. 2025 2SSO10198 2 616 24-MAR-26 Municipal(Public) 35000 1 4 2 1 3 0 1 1 0 0 n/a 1 147 63 17 14 3 1 0 98 1 1 0 0 0 0 2 13000 1 None 0 12 22 8 1 48 9 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 171 37 2 019014001 001-EBMUD, , CA WWTP same agency N 7 0 1 Y Y Root Intrusion Gravity Mainline n/a Added location to root foaming program and consideration for any structural repairs if required. 2023 2SSO10199 2 616 01-APR-24 Municipal(Public) 29518 4 4 1 1 0 0 0 0 0 0 N/A 2 77 24 65 11 0 0 0 100 0 0 0 0 0 0 0 8923 8030 Lower only 35 15 41 39 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 12 2SSO10199 Suisun City CS, 701 Civic Center Boulevard, Suisun City, CA 94585 SSS same agency N N/A 1 1 0 Y N Fats, Oil and Grease (FOG) Also, debris from residential laterals. Lower Lateral N/A N/A Cleaning, CCTV, review of CCTV video, will start CIP to address deficiencies in FY25. NOTE: The SERP is in draft form with many updates having been made but still needs to be finalized. Will be finalized in 2024. 2024 2SSO10199 2 616 01-MAY-25 Municipal(Public) 28743 4 7 2 1 0 0 0 0 0 0 1.7 77.3 24 65 11 0 0 0 100 0 0 0 0 0 0 0 8923 8030 None 35 2 13 41 36 4 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 12 2SSO10199 Fairfield-Suisun Sewer District WWTP other agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 Y N Fats, Oil and Grease (FOG) Debris from residential laterals. Lower Lateral N/A N/A The city purchased a vacuum truck in FY23-24. The city continues with its annual cleaning program and review of CCTV video. Due to staffing issues, the city's SERP has not been finalized and is still in draft form. 2025 2SSO10199 2 616 24-MAR-26 Municipal(Public) 29614 4 4 1 1 0 0 0 0 0 0 N/A 2 77 24 65 11 0 0 0 100 0 0 0 0 0 0 0 8293 8030 Lower only 35 18 41 39 1 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 7 2SSO10199 Fairfield-Suisun Sewer District - 1010 Chadbourne Road, Fairfield, CA 94534 WWTP other agency N N/A N/A 1 1 0 Y Y Fats, Oil and Grease (FOG) Debris from residential and commercial laterals. Lower Lateral N/A 0 Capital Improvement Project in 2025 to line sewer main in the Downtown/Whispering Bay area of the city - $1.1M. 2023 5SSO11061 5S 616 30-DEC-25 Municipal(Public) 2691 0 2 1 1 2 1 0 0 0 0 1 22 70 22 8 0 0 0 100 100 0 0 0 0 0 100 1126 0 None 0 5 17 69 3 3 1 1 1 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 6 1 5B030104001 Sutter Creek WWTP, 18 Main Street, Sutter Creek, CA 95685 WWTP same agency N N 0 0 0 0 Y Y Root Intrusion Gravity Mainline Majority of piping was installed back in the 1950's. Many future expansion y-joints were capped with coffee cans. We found one this year when we repaired spills. None Last year flow monitoring meters were installed in various manholes to begin to understand the areas of the system that have high I/I. The majority of problems in the city are due to infiltration due to roots and groundwater. 2024 5SSO11061 5S 616 31-DEC-25 Municipal(Public) 2691 0 2 1 1 2 1 0 0 0 0 1 22 70 22 8 0 0 0 100 100 0 0 0 0 0 100 1126 0 None 0 10 17 64 3 1 1 1 1 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 .1 3.6 2 5B030104001 Sutter Creek WWTP, 18 Main Street, Sutter Creek, CA 95685 WWTP same agency N N 0 0 0 0 Y Y Root Intrusion Gravity Mainline None Replaced mains in one development (Sutter Oaks 2). Replaced mains had a number of backups in private yards. 2025 5SSO11061 5S 616 02-JAN-26 Municipal(Public) 2691 0 2 1 1 2 1 0 0 0 0 1 22 70 22 8 0 0 0 100 100 0 0 0 0 0 100 1126 0 None 0 6 17 68 3 3 1 1 1 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 .1 2 1 5B030104001 Sutter Creek WWTP, 18 Main Street, Sutter Creek, CA 95685 WWTP same agency N 0 0 0 Y Y Root Intrusion Root intrusion continues to be the number one cause of spills in the collection system. Roots cause disposable wipes to clog the main line. Disposable wipes are a second to the cause of major spills Gravity Mainline None Last year we completed 7 known issues in the system. We targeted areas with high rate of SSO's. We lifted a drop manhole, replaced 230 feet of 4-inch, 1,144 feet of of 6-inch and 1,975 feet of 8-inch sewer mains. 2023 2SSO10200 2 616 26-FEB-24 Municipal(Public) 156317 1 10 1 3 1 3 1 3 0 0 10 crew members are NASCCO certified. 2 309 15 55 24 5 1 0 100 13 1 86 0 0 0 100 25429 0 None 0 4 4 4 24 18 0 0 0 45 100 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 5 7 135 10 2438018001 Sunnyvale WPCP WWTP same agency Y N Moffett Field N/A Y Rancho Rinconada N/A N.A. 38 1 14 Y Y Root Intrusion Gravity Mainline N.A. Root foaming treatment to reduce root intrusions. Conduct systematic flushing, CCTV inspections, and repairs or replacement as needed. 2024 2SSO10200 2 616 03-NOV-25 Municipal(Public) 156317 3 10 1 2 1 3 1 2 0 0 10 crew members are NASCCO certified CCTV operators. 2 310 15 55 24 5 1 0 100 13 1 86 0 0 0 100 26997 0 None 0 4 4 4 24 18 0 0 0 45 100 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 5 7 117 29 2 438018001 Sunnyvale WPCP, 1444 Borregas Ave, Sunnyvale, CA 94089 WWTP same agency Y N Moffett Field N/A Y Rancho Rinconada N/A N/A. 38 1 11 Y Y Root Intrusion Gravity Mainline N/A Root foaming treatment to reduce root intrusions. Conduct systematic flushing, CCTV inspections, and repairs or replacement as needed. 2025 2SSO10200 2 616 18-MAR-26 Municipal(Public) 159673 2 10 1 1 1 4 1 2 0 0 9 NASCCO certified staff 2 310 15 55 24 5 1 0 100 13 1 86 0 0 0 100 26591 0 None 0 4 4 4 25 18 0 0 0 45 100 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 5 7 175 34 2438018001 Sunnyvale WPCP, 1444 Borregas Ave, Sunnyvale, CA 94089 WWTP same agency Y N Moffett Field N/A Y Rancho Rinconada N/A N/A 41 1 11 Y Y Root Intrusion Gravity Mainline N/A Root foaming treatment to reduce root intrusions. Conduct systematic flushing, CCTV inspections, and repairs or replacement as needed. 2023 5SSO11066 5S 616 27-MAR-24 Municipal(Public) 108000 5 18 2 2 5 5 12 1 4 27 12 490 35 45 10 10 0 0 100 0 90 10 0 0 0 100 27150 27150 Lower only 207 30 5 40 10 5 5 5 0 0 100 2 0 2 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 30 7 3 5SSO11066 Tracy CS, 3900 Holly Dr.,Tracy, CA 95376 WWTP same agency N 1 4 6 Y Y Fats, Oil and Grease (FOG) Some blockages are because of roots also wipes Gravity Mainline None at this time Hot spot list some checked weekly others bi weekly 2024 5SSO11066 5S 616 18-NOV-25 Municipal(Public) 109000 4 20 1 2 9 18 2 3 0 11 12 533 35 45 10 10 0 0 100 0 90 10 0 0 0 100 28750 28750 Lower only 250 30 5 40 10 5 5 5 0 0 100 2 0 2 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 30 8.3 2.5 5B390108001 3900 Holly Drive, Tracy, CA, 95304 WWTP same agency N 1 4 6 Y Y Fats, Oil and Grease (FOG) Root intrusion, Debris - wipes Gravity Mainline None Weekly Hotspot list 2023 5SSO11068 5F 616 01-DEC-25 Municipal(Public) 1577 3 3 1 1 2 0 0 0 0 0 N/A 0 90 92 5 1 0 0 1 99 1 0 0 0 0 0 1 812 127 Lower only 1 16 1 1 31 51 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 1 5C550104001 Tuolumne City WWTP, 18050 Box Factory Road, Tuolumne, CA 95379 WWTP same agency N N/A 3 1 0 N Y Debris-General N/A Gravity Mainline N/A Zero Phase-1 Collection System Rehabilitation Project Completed. Funding application through SRF for the next phase of construction has been submitted. 2024 5SSO11068 5F 616 06-FEB-26 Municipal(Public) 1297 0 3 1 1 1 0 0 0 0 0 0 .1 10.4 72 21 7 0 0 0 100 1 0 0 0 0 0 0 730 88 Lower only .2 0 6 2 31 61 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 .1 .4 .1 5C550104001 Tuolumne City WWTP, 18050 Box Factory Road, Tuolumne, CA 95379 WWTP same agency N NA 4 1 0 Y Y Debris-General NA Gravity Mainline NA NA Deficiencies are either placed on an in-house repair list or will need outside funding to correct. Construction and Planning SRF funding applications have been submitted. 2025 5SSO11068 5F 616 09-JAN-26 Municipal(Public) 1404 0 3 1 1 1 0 0 0 0 0 N/A 0 10.4 72 21 7 0 0 0 100 1 0 0 0 0 0 0 730 88 Lower only .2 0 6 2 31 61 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 .1 .4 .1 5C550104001 Tuolumne City WWTP, 18050 Box Factory Road, Tuolumne, CA 95379 WWTP same agency N N/A 4 1 0 Y Y Debris-General N/A Gravity Mainline N/A None Applied for SRF grants for system replacement. Areas with known past blockages are cleaned more often. Implemented improved documentation of problematic areas. 2023 5SSO11069 5S 616 29-MAR-24 Municipal(Public) 72116 8 6 4 1 4 7 3 0 0 4 NA 3 229 41 30 23 5 1 0 100 1 0 1 0 0 0 100 209 209 Lower only 229 0 10 30 40 20 0 0 0 0 100 0 5 2 0 0 0 0 0 0 7 0 15 5 0 0 0 0 0 0 20 2 1 3 R520210005 TURLOCK WQC WWTP same agency Y N City of Ceres R12060021 N City of Keyes 5SSO1149 N City of Denair 5SS011492 NA 5 0 2 N Y Fats, Oil and Grease (FOG) NA Manhole LOWER LATERALS NONE Monthly, Quarterly, Bi-Annual, Annual Preventative Maintenance 2024 5SSO11069 5S 616 27-JUN-25 Municipal(Public) 72100 8 9 4 1 7 5 3 0 0 11 NA 3 229 41 30 23 5 1 0 100 1 0 1 0 0 0 100 209 209 Lower only 229 1 10 30 40 20 0 0 0 0 100 0 5 2 0 0 0 0 0 0 7 1 15 5 0 0 0 0 0 0 16 2 45.1 5 5B50NC00319 Turlock City, Turlock Regional Water Quality Control Facility, 901 South Walnut Road, Turlock, CA 95380 WWTP same agency Y N City of Ceres R12060021 N City of Keyes 5SSO1149 N City of Denair 5SS011492 NA 5 0 2 N Y Fats, Oil and Grease (FOG) NA Manhole LOWER LATERALS NONE Monthly, Quarterly, Bi-Annual, Annual Preventative Maintenance 2025 5SSO11069 5S 616 20-MAR-26 Municipal(Public) 73000 10 12 4 1 6 7 3 0 0 7 n/a 1.3 229 56 0 35 9 0 0 100 46 0 54 0 0 0 100 209 209 Lower only 229 1 10 30 40 20 0 0 0 0 100 0 5 2 0 0 0 0 0 0 7 1 15 5 0 0 0 0 0 0 16 2 39 6 5B50NC00319 Turlock City, Turlock Regional Water Quality Control Facility, 901 South Walnut Road, Turlock, CA 95380 WWTP same agency Y N City of Ceres R12060021 N City of Keyes 5SS01149 N City of Denair 5SSO11492 N/A 5 0 2 N Y Fats, Oil and Grease (FOG) N/A Manhole N/A N/A Monthly, Quarterly, Bi-Annual, Annual Preventative Maintenance 2023 5SSO11070 5F 616 22-MAR-24 Other 1000 0 1 0 0 0 1 0 0 0 0 NA 4 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 0 0 5C550705001 Tuttletown Recreation Area, 6850 Studhorse Flat , Sonora, CA 95370 WWTP same agency N NA 0 0 0 Other (specify below) None Other (specify below) None None None 2023 5SSO11071 5S 616 28-MAR-24 School 49616 0 4 1 1 1 1 2 2 0 0 N/A 5 23 24 37 33 6 0 0 100 39 16 37 7 0 1 100 724 724 Upper and Lower 24 0 48 42 6 0 0 0 0 4 100 0 12 5 1 0 0 0 0 0 18 0 2 2 0 0 0 0 0 0 4 0 1 1 5A570800001 UC Davis Main WWTP, 561 Trotter Davis, CA, 95616 WWTP same agency N N/A N/A N/A 1 1 0 Y Debris-General N/A Lower Lateral N/A None No system deficiencies, continuing ongoing routine maintenance of system 2024 5SSO11071 5S 616 01-APR-25 School 48040 0 4 1 1 1 1 2 2 0 0 N/A 5 23 24 37 33 6 0 0 100 39 16 37 7 0 1 100 688 688 Upper and Lower 24 0 48 42 6 0 0 0 0 4 100 0 12 5 1 0 0 0 0 0 18 0 2 2 0 0 0 0 0 0 4 0 1.4 .6 5A570800001 UC Davis Main WWTP, 561 Trotter Davis, CA, 95616 WWTP same agency N N/A N/A N/A 1 1 0 Y Y Debris-General n/a Lower Lateral N/A None No system deficiencies, continuing ongoing routine maintenance of system. Design underway for sewer pipeline and pump station upsizing projects in West Campus, to address capacity constraints. 2025 5SSO11071 5S 616 20-MAR-26 School 49022 1 5 0 1 0 1 2 2 0 0 n/a 5 23 24 37 33 6 0 0 100 39 16 37 7 0 1 100 688 688 Upper and Lower 24 0 48 42 6 0 0 0 0 4 100 0 12 5 1 0 0 0 0 0 18 0 2 2 0 0 0 0 0 0 4 0 1.6 22.9 5A570800001 UC Davis Main WWTP, 561 Trotter Davis, Ca,95616 WWTP same agency N N/A N/A 1 1 0 Y Operator Error (specify below) Forgot to latch Vac-con after cleaning wet well Other (specify below) Vac-con none No system deficiencies, continuing ongoing routine maintenance of system. Design phase complete now starting sewer pipeline and lift station improvements for west campus 2023 5SSO11074 5S 616 26-MAR-24 Municipal(Public) 900 0 2 1 1 0 0 0 0 0 3 n/a 5 5 90 0 0 0 0 0 0 10 0 0 0 0 0 0 270 270 None 0 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 90 0 0 0 0 0 0 0 5 2 1 5SSO11074 Valley Springs Sd CS, , Valley Springs, CA 95252 WWTP same agency N N N na na N na na N na na N na na na 0 1 0 N Y Debris-Rags baby wipes Pump Station - Mechanical na na na 2023 5SSO11077 5S 616 22-MAR-24 Municipal(Public) 250 1 2 2 2 4 2 1 2 0 0 N/A 3 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 105 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 5SSO11077 Wallace CS, , Wallace, CA 95252 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Power Property owner's septic tank pump could fail during a power outage. Pump Station - Power Property owner's septic tank pump could fail during a power outage. N/A Routinely meet with HOA to understand property owner issues. 2024 5SSO11077 5S 616 19-DEC-25 Municipal(Public) 250 2 1 1 2 2 1 0 1 0 0 3 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 105 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 5B050107007 Wallace Lake Estates WWTF, 100 South Wallace Lake Drive, Wallace, CA 95254 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Power Property owner's septic tank pump could fail during power outage. Pump Station - Power Property owner's septic tank pump could fail during power outage. N/A Routinely meet with HOA to understand property owner issues. 2025 5SSO11077 5S 616 23-MAR-26 Municipal(Public) 250 1 3 1 2 2 1 0 1 0 5 Collections system workers are also certified in Water Distribution. 3 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 105 0 None 0 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 5B050107007 Wallace Lake Estates WWTF, 100 South Wallace Lake Drive, Wallace, CA 95254 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A Routinely meet with HOA to understand property owner issues. 2024 5SSO11080 5S 616 03-FEB-25 Municipal(Public) 9335 1 1 1 1 0 1 0 0 0 0 O.I.T 1.5 26 85 10 0 0 0 0 100 100 0 0 0 0 0 100 2372 2372 Upper and Lower 25 10 10 10 10 60 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 2 0 12 5 5C500113021 335 S Western Ave Waterford ca 95386 WWTP same agency N 1 0 0 N Y Debris from Construction Lower Lateral N/A N/A N/A 2025 5SSO11080 5S 616 06-MAR-26 Municipal(Public) 9338 0 2 1 1 1 1 0 0 0 2 1.5 26 85 10 0 0 0 0 100 100 0 0 0 0 0 100 2380 2380 Upper and Lower 25 10 10 10 10 60 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 2 0 15 3 5C500113001 Waterford WWTP, 335 South Western Avenue, Waterford, CA 95386-9490 WWTP same agency N N N N/A 0 N N/A 0 N N/A 0 N N/A 0 1 0 0 N Y Debris-General Grease, Rags Lower Lateral N/A N/A Weakly collection cleaning 2023 5SSO11081 5S 616 22-MAR-24 Municipal(Public) 365 1 2 2 2 4 2 1 2 0 0 Collections System workers also hold Distribution Certificates 3 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 334 167 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 5SSO11081 West Point CS, , San Andreas, CA 95249 WWTP same agency N N/A 0 1 0 Y Fats, Oil and Grease (FOG) Commercial part of the community significantly affect the system with FOG. Concerted effort on behalf of CCWD do reduce the accumulation of FOG in the system. Upper Lateral N/A Routine septic tank inspections and cleaning. Completed entire system in 2023. Intensive discussions with property owners RE FOG deposition/acceptable septic system ownership and operation. 2024 5SSO11081 5S 616 22-DEC-25 Municipal(Public) 365 2 1 1 2 2 1 0 1 0 0 Collections system workers also hold distribution certificates 3 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 334 167 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 5B052009002 West Point WWTF, 20 Sandy Gulch Rd, Wilseyville, CA 95257 WWTP same agency N N/A 0 1 0 Y Fats, Oil and Grease (FOG) Commercial part of the community significantly affects the system with FOG. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A ARV's are on a Quartey inspection basis to prevent failures caused by age or vandalism. Septic tanks are inspected on a 5-year basis and routinely checked for blockages. 2025 5SSO11081 5S 616 23-MAR-26 Municipal(Public) 365 1 3 1 2 2 1 0 1 0 5 Collections system workers also are certified in Water Distribution. 3 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 334 167 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 5B052009002 West Point WWTF, Hwy 26 @ Sandy Gulch Rd , Wilseyville, CA 95255 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 1 0 N Y Fats, Oil and Grease (FOG) Commercial part of the community significantly affects the system with FOG. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A N/A Septic tanks are inspected on a 5-year basis and routinely checked for blockages. 2023 5SSO11082 5S 616 21-OCT-24 Municipal(Public) 56517 4 3 1 1 2 0 1 0 0 0 N/A 12 190 29 46 22 1 1 1 100 1 20 48 2 28 1 100 15071 0 Lower only 1 13 38 20 11 10 0 0 0 8 100 0 0 1 2 1 0 0 0 0 4 0 5 3 2 0 0 0 0 0 10 2 21 2 5SSO11045 Sacramento Regional Treatment Plant, 8521 Laguna Station Road, Elk Grove, CA. 95758-9550 WWTP other agency N n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a N/A 102 37 0 Y Y Fats, Oil and Grease (FOG) N/A Lower Lateral N/A 0 Hired a contractor to CCTV and score pipe. Currently working on updating our sewer master plan. Determining funding for staffing, maintenance equipment, and repair equipment. 2025 5SSO11082 5S 616 10-APR-26 Municipal(Public) 57000 4 5 2 1 2 0 0 0 0 0 N/A 12 190 29 46 21 1 1 1 100 1 20 48 2 28 1 100 15071 0 Lower only 1 13 38 20 11 10 0 0 0 8 100 0 0 1 2 1 0 0 0 0 4 0 5 3 2 0 0 0 0 0 10 2 17.5 2 5SSO11045 EchoWater Facility, 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP other agency N N/A N/A N/A 102 37 0 Y Y Fats, Oil and Grease (FOG) N/A Lower Lateral N/A 0 Hired a contractor to CCTV and score pipe. Recently updated the City's sewer master plan. Determining funding for staffing, maintenance equipment, and repair equipment. 2023 5SSO11084 5S 616 28-MAR-24 Municipal(Public) 67325 5 20 4 4 1 20 5 0 0 0 4 202 52 22 19 4 3 0 100 19 70 11 0 0 0 100 22137 0 None 0 12 22 27 20 7 12 0 0 0 100 1 2 0 0 0 0 0 0 0 3 1 4 1 0 0 0 0 0 0 6 0 52 4 5SSO11084 White Slough Water Poll Con Pu CS, , Lodi, CA 95240 WWTP same agency N 4 0 0 Y Y Debris-General The City did not experience any significant (Major) spills in 2023. All spills were either Cat 3 or Cat 4. Most spills were caused by general debris and/or FOG. Gravity Mainline The City did not experience any significant (Major) spills in 2023. All spills were either Cat 3 or Cat 4. Most spills were caused by general debris and/or FOG. There are no ongoing spill investigations at this time. There are no known system deficiencies at this time. City is in the process of completing Phase 10 - Wastewater System Rehabilitation. Phase 10 is a continuation of addressing aging truck lines that were assessed back in 2016. Phase 11 is currently scheduled for FY 24/25. 2024 5SSO11084 5S 616 24-MAR-26 Municipal(Public) 68532 4 20 4 4 3 18 5 0 0 0 No other 3.7 201.9 52 22 19 4 3 0 100 19 70 11 0 0 0 100 22137 0 None 0 12 22 27 20 7 12 0 0 0 100 1 2 0 0 0 0 0 0 0 3 1 4 1 0 0 0 0 0 0 6 0 49 6 5SSO11084 White Slough Water Poll Con Pu CS, Lodi CA 95240 WWTP same agency N N/A 4 0 0 Y Debris-General The City did not experience any significant (major) spills in 2024. All spills were either Category 3 or Category 4 and caused by general debris and/or FOG. Gravity Mainline No other There are no ongoing spill investigations at this time. The City completed Wastewater System Rehabilitation Phase 10 in 2024. Phase 11 is scheduled to begin in 2025. Phase 10 and 11 is a continuation of addressing aging truck lines that were assessed in 2016. Trunk lines and manholes are rehabilitated using CIPP. 2025 5SSO11084 5S 616 31-MAR-26 Municipal(Public) 70240 2 25 4 4 2 9 4 0 0 0 3.7 201.9 52 22 19 4 3 0 100 19 70 11 0 0 0 100 22137 0 None 0 12 22 27 20 7 12 0 0 0 100 1 2 0 0 0 0 0 0 0 3 1 4 1 0 0 0 0 0 0 6 0 77 1.6 5SSO11084 White Slough Water Poll Con Pu CS, Lodi CA 95240 WWTP same agency N N/A 4 0 0 Y Y Pump Station Failure - Controls We had one major spill of approximately 2,050 gallons due to a pump station control failure (Spill Event #903674). UPS failed caused loss of power to controls. New UPS and alarm function was added to prevent another failure. Pump Station - Controls None at this time. In 2025, the City conducted Wastewater Phase 11 Condition Assessment with was a continuation of a trunkline assessment completed in 2016. Staff has identified the need to rehabilitate approximately 5,400 feet of concrete trunkline ranging from 14''-24''. Wastewater Rehab Phase 11 will begin in spring of 2026. 2023 5SSO11088 5S 616 02-APR-24 Municipal(Public) 5538 1 2 1 1 0 0 0 0 0 0 State of California Wastewater Treatment Grade III certification x 1 State of California Wastewater Treatment Grade I certification x 1 State of California Wastewater Treatment OIT x 2 1 23 28 51 15 6 0 0 100 24 76 0 0 0 0 100 1557 0 None 0 0 22 13 15 32 18 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 0 0 0 0 0 0 5 0 10 1 5A060103001 001, , Williams, CA WWTP same agency N NA 0 0 0 N Y Other (specify below) NA Other (specify below) NA NA NA 2023 5SSO11092 5S 616 28-MAR-24 Municipal(Public) 7115 1 1 1 1 2 0 1 0 0 0 Two employees have a Collections 1 certification. One employee has a D3 and a T2 certification. 8 34 40 55 5 0 0 0 100 19 27 54 0 0 0 100 2300 7 Lower only 9 37 0 63 0 0 0 0 0 0 100 1 2 1 2 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 5 17 0 5SSO11092 Winters, CA 95694 WWTP same agency N N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Every year the City cleans 50% of the sewer lines and storm lines with a combo truck. 2024 5SSO11092 5S 616 17-DEC-25 Municipal(Public) 7200 0 2 1 1 2 0 1 0 0 0 Two employees have a Collections 1 certification. One employee has a D3 and a T2 certification. 8 34 40 55 5 0 0 0 100 19 27 54 0 0 0 100 2300 7 Lower only 9 37 0 63 0 0 0 0 0 0 100 1 2 1 2 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 5 17 0 5A570104001 Winters WWTF, 27999 Co. Rd. 32A, Winters, CA 95694 WWTP same agency N N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Every year the City cleans 50% of the sewer lines and storm lines with a combo truck. 2025 5SSO11092 5S 616 25-FEB-26 Municipal(Public) 7200 0 2 1 1 1 1 1 0 0 0 Two employees have a Collections 1 certification. One employee has a D3 and a T2 certification. 8 34 40 55 5 0 0 0 100 19 27 54 0 0 0 100 2300 7 Lower only 9 37 0 63 0 0 0 0 0 0 100 1 2 1 2 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 5 17 0 5A570104001 Winters WWTF, 201 East Street, Winters, CA 95694-1716 WWTP same agency N N NA 0 0 0 N Y Debris from Lateral NA Lower Lateral NA NA Every year the City cleans 50% of the sewer lines and storm lines with a combo truck. 2024 5SSO11093 5S 616 30-DEC-25 Municipal(Public) 4100 2 3 0 1 0 1 0 0 0 1 N/A .4 12.4 50 38 10 0 0 0 98 1 1 0 0 0 0 2 1280 1280 Lower only 5 0 0 10 10 30 0 0 0 50 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 5 3 5B390109001 Woodbridge SD-Sewage Treatment, 19720 Benedict Drive, Woodbridge, CA 95258 WWTP same agency N 1 1 0 Y Y Collection System Maintenance Failure (specify below) Grease Buildup and root intrusion Gravity Mainline N/A N/A The WSD is taking proactive measures to address system deficiencies through its Capitol improvement plan. The District has updated its Emergency Respond Plan to insure that the District is well equipped to respond to any spill incidents, minimizing potential environmental impact and safeguarding public health promptly and effectively. 2025 5SSO11093 5S 616 30-MAR-26 Municipal(Public) 4100 3 3 0 1 0 1 0 0 0 1 N/A .4 12.4 50 38 10 0 0 0 98 1 1 0 0 0 0 2 1280 1280 Lower only 5 0 0 10 10 30 0 0 0 50 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 5 3 5B390109001 Woodbridge SD-Sewage Treatment, 19720 Benedict Drive, Woodbridge, CA 95258 WWTP other agency N 1 1 0 Y Y Collection System Maintenance Failure (specify below) Grease build up and root intrusion Gravity Mainline N/A N/A The Woodbridge Sanitary District is taking proactive measures to address system deficiencies through its Capital Improvement Plan Update. By upgrading and modernizing these critical infrastructure elements, the District aims to enhance the overall reliability, efficiency, and resilience of its sanitary system. The District is well- equipped to respond to any spill incidents, minimizing potential environmental impact and safeguarding public health promptly and effectivly. 2023 5SSO20006 5S 616 22-MAR-24 Park (w/Campground) 2400 0 3 1 1 0 0 0 0 0 1 Grade 1 wastewater treatment plant operator certificate # 44535 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 Upper and Lower 1 0 0 47 53 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 0 1 0 5SSO11095 Woodward Reservoir Reg Park CS, 3800 Cornucopia Way, C Modesto, CA 95358 WWTP same agency N 0 0 0 1 Y Y Other (specify below) no spills-NA Other (specify below) No failures-NA none none- system is well maintained and operated 2023 5SSO20006 5S 616 13-OCT-23 2400 1 3 3 1 0 0 0 0 1 0 0 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 1 0 0 47 53 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 0 1 0 5SS011095 Woodward Reservoir Reg. Park WWTF N N N N N N 0 0 0 1 N Y n/a n/a na na 2024 5SSO20006 5S 616 31-DEC-25 Park (w/Campground) 2400 0 3 1 1 0 0 0 0 0 1 Grade 1 wastewater treatment plant certificate #44535 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 Upper and Lower 1 0 0 47 53 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 0 5C500112001 Woodward Reservoir Reg Park, 14528 26 Mile Road, Oakdale, CA 95361-9218 WWTP same agency N 0, N/A 0 0 1 Y Y Other (specify below) no spills- NA Other (specify below) no failures-NA none none-system is well maintained and operated 2023 5SSO11099 5S 616 16-DEC-25 Municipal(Public) 51 2 4 1 0 0 0 0 0 0 0 0 .2 1.6 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 None 0 0 11 80 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .8 0 0 0 WWTP same agency N N 0 0 0 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 5SSO11099 5S 616 16-JUN-26 Municipal(Public) 75 3 5 1 0 0 0 3 0 0 0 0 .2 1.6 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 11 9 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 .5 .5 5c550700002 Yosemite Nat Prk Hodgdon MDW, Hodgdon Mdw , Yosemite Natl Park, CA 95389 SSS same agency N 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 5SSO11100 5S 616 03-APR-24 Municipal(Public) 57170 3 18 3 2 4 3 7 1 1 0 Wastewater operational staff are certified by SWRCB: Grade III: 8; Grade IV: 1; Grade V: 1 2 175 28 44 22 5 0 0 99 0 0 0 0 0 1 1 20200 0 None 0 0 23 39 9 2 0 0 0 27 100 0 38 62 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 91 33 5A510101001 City of Yuba City WWTF, 302 Burns Dr, Yuba City, CA 95991 WWTP same agency Y Y Stonegate Village CS 5SS011060 2 4 0 Y Y Root Intrusion NA Upper Lateral NA None Add sewer lines to preventative maintenance program. 2024 5SSO11100 5S 616 27-MAR-25 Municipal(Public) 44808 1 16 3 2 2 8 4 0 0 0 Wastewater Operational staff are certified by SWRCB: Grade III: 8 Grade IV: 2; Grade V: 1 2 175 28 44 22 5 0 1 100 0 0 0 0 0 100 100 15451 0 None 0 0 23 39 9 2 0 0 0 27 100 0 7 10 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 2 70.5 24 5A510101001 City of Yuba City WWTF, 302 Burns Drive, Yuba City, CA 95991 WWTP same agency Y Y Stonegate Village CS 5SS011060 N/A 2 4 0 Y Y Debris-General N/A Upper Lateral N/A None Continue preventative maintenance throughout the collection system. 2025 5SSO11100 5S 616 01-APR-26 Municipal(Public) 46656 0 18 2 1 1 4 4 0 0 0 Wastewater Operational staff are certified by SWRCB: Grade lll: 8 Grade lV:2 Grade V: 1 2 175 28 44 22 5 0 1 100 0 0 0 0 0 100 100 15451 0 None 0 0 23 39 9 2 0 0 0 27 100 0 7 10 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 2 70.5 24 5A510101001 City of Yuba City, WWTF 302 Burns Drive, Yuba City Ca 95991 WWTP same agency Y Y Stonegate Village CS 5SS011060 N/A 2 4 0 Y Y Debris-General N/A Upper Lateral N/A None Continue preventative maintenance throughout the collections system 2023 6SSO11168 6B 616 03-DEC-25 Municipal(Public) 2227 7 7 1 0 5 2 1 0 0 0 None 0 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 6SSO11168 CSA 82 CS (Trona & Pioneer Point), P.O. Box 3395 , Crestline, CA 92325 WWTP same agency N N None 0 0 0 N Y Debris from Lateral None Other (specify below) Mainline, manholes None None 2024 6SSO11168 6B 616 12-NOV-25 Municipal(Public) 2227 0 7 1 0 5 2 1 0 0 0 None 0 10 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 6SSO11168 CSA 82 WWTP same agency N N None 0 0 0 N Y Debris from Lateral None Other (specify below) Mainline, manholes None None 2023 6SSO11169 6B 616 19-MAR-24 Municipal(Public) 317145 2 20 3 3 9 2 2 5 0 0 NA 2 42 0 2 51 38 9 0 100 0 0 100 0 0 0 100 0 0 None 0 0 10 10 80 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 6 0 6B360109001 20111 Shay Road, Victorville, CA 92394 WWTP same agency Y N City of Victorville 6SSO11425 N City of Hesperia 6SSO11427 N Town of Apple Valley 6SSO11489 N County Special Area 42 N N County Special Area 64 N NA 6 0 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Gravity Mainline NA NA We are currently planning to build a new WWTP 2024 6SSO11169 6B 616 20-FEB-25 Municipal(Public) 317145 9 22 3 1 5 1 2 4 0 0 NA 2 42 0 2 51 38 9 0 100 0 0 100 0 0 0 100 0 0 None 0 0 10 10 80 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 6 0 6B360109001 20111 Shay Road, Victorville, CA 92394 WWTP same agency Y N City of Victorville 6SSO11425 N City of Hesperia 6SSO11427 N Town of Apple Valley 6SSO11489 N County Special Area 42 N N County Special Area 64 N NA 6 0 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Gravity Mainline NA NA We are currently planning to build a new WWTP 2025 6SSO11169 6B 616 12-MAR-26 Municipal(Public) 317145 6 9 3 2 4 3 1 6 0 0 NA 2 42 0 2 51 38 9 0 100 0 0 100 0 0 0 100 0 0 None 0 0 10 10 80 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 4 9 6B360109001 20111 Shay Road, Victorville, CA 92394 WWTP same agency Y N City of Victorville 6SSO11425 N City of Hesperia 6SSO11427 N Town of Apple Valley 6SSO11489 N County Special Area 42 N N County Special Area 64 N NA 6 0 1 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) NA Gravity Mainline NA NA We are currently planning to build a new WWTP 2023 9SSO11172 9 616 13-APR-26 Municipal(Public) 14000 0 0 0 0 0 0 0 0 0 0 See Attachment 2 49 8 83 7 2 0 0 100 11 45 44 0 0 0 100 5000 0 None 0 0 5 10 9 76 0 0 0 0 100 0 0 1 2 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 .5 49 10 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency Y N City of Del Mar SC 9SSO10648 N City of San Diego SC 9SSO10658 N/A 0 1 1 Y Y Debris from Lateral N/A Manhole N/A No Added sewer to preventive maintenance program 2024 9SSO11172 9 616 16-APR-26 Municipal(Public) 14000 0 0 0 0 0 0 0 0 0 0 See Attachment 2 49 8 83 7 2 0 0 100 11 45 44 0 0 0 100 5000 0 None 0 0 5 10 9 76 0 0 0 0 100 0 0 1 2 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 .5 49 10 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency Y N City of Del Mar SC 9SSO10648 N City of San Diego SC 9SSO10658 N/A 0 1 1 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Other (specify below) Pump station clean out No San Elijo Joint Powers Authority (SEJPA) performed necessary repairs and replaced defective parts. SEJPA will conduct further inspections and, if needed, make additional repairs. Pump station inspection schedule changed to daily. 2025 9SSO11172 9 616 31-MAR-26 Municipal(Public) 14000 0 0 0 0 0 0 0 0 0 0 See Attachment 2 49 8 83 7 2 0 0 100 11 45 44 0 0 0 100 5000 0 None 0 5 0 10 9 76 0 0 0 0 100 0 0 1 2 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 .5 49 10 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency Y Y City of Del Mar SC 9SSO10648 N City of San Diego SC 9SSO10658 NA 0 1 1 Y Y Other (specify below) NA, No Spills Other (specify below) NA, No Spills NA See Attachment 2023 2SSO11174 2 616 27-MAR-24 School 30000 1 2 1 1 0 0 0 0 0 2 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 38 38 Upper and Lower 1 2 38 25 25 10 0 0 0 0 100 1 2 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 2 2 2SSO11174 We discharge to the city of San Jose, I don't know their WDID SSS other agency N 0 0 0 Y Y Other (specify below) none Other (specify below) none n/a no major system deficiencies. 2024 2SSO11174 2 616 01-APR-26 School 35000 1 2 1 1 0 0 0 0 0 1 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 38 38 Upper and Lower 1 2 38 25 25 10 0 0 0 0 100 1 2 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 2 2 860971 San José-Santa Clara Regional Wastewater Facility SSS other agency N 0 0 0 Y Y Debris from Lateral In preparation for the game on Thursday 11/14/2024 morning SJSU crews flushed the clean water system. Additionally, during that time crews hydro jetted approximately 100 feet of laterals serving the SW corner of stadium bank of restrooms. During the last 3 games this bank of restrooms had clogged. The lines were clear and running at the conclusion of these activities. SJSU had several plumbers working scheduled overtime for the game from 4-7pm on 11/16/2024. These plumbers began working to locate the blockage and eventually traced it to between the last SJSU manhole (that meets the city cleanout specification) and the city owned manhole in 7th street. Lower Lateral no • Before every game, SJSU will flush the stadium with fresh water and will monitor outflows to ensure there are no blockages. • SJSU will staff the event with an extra plumber or utility person so that trades personnel are readily available in case of a sewer system incident. • SJSU will post signage in the restrooms that state: Toilet Paper Only. Please do not flush wet wipes, paper towels, feminine products or trash of any kind. • SJSU will draft an administrative procedure to detail after hours protocols regarding how to respond to and who to call during a sewer overflow emergency. This will help to streamline the response strategy, hasten repair and reduce/eliminate discharge volume. • At least once per year SJSU will jet and scope the lines, including laterals, to ensure that they remain clear and flowing. • SJSU will stage a jetter at south campus during game days. This will ensure it's readily available in case of an emergency. 2025 2SSO11174 2 616 04-MAR-26 School 40000 1 2 1 1 0 0 0 0 0 1 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 38 38 Upper and Lower 1 2 38 25 25 10 0 0 0 0 100 1 2 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 2 2 2SSO11174 SSS other agency N 0 0 0 Y Y Other (specify below) none Other (specify below) none n/a no major system deficiencies 2023 5SSO11177 5F 616 20-OCT-25 Other 5725 2 5 4 2 0 0 0 0 0 0 0 .2 5 50 40 10 0 0 0 100 100 0 0 0 0 0 100 2705 2705 Upper and Lower 3.2 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.5 0 5D160101001 Avenal WWTF, 1 Effluent Wy , Avenal, CA 93204 WWTP same agency N 0 0 0 N Y Debris-wipes/Non-disposables Inmate debris Gravity Mainline manhole n/a n/a 2024 5SSO11177 5F 616 20-OCT-25 Other 4000 1 4 4 2 0 0 0 0 0 0 0 .2 5 50 40 10 0 0 0 100 100 0 0 0 0 0 100 2705 2705 Upper and Lower 3.2 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.5 0 5D160101001 Avenal WWTF, 1 Effluent Wy , Avenal, CA 93204 WWTP same agency N 0 0 0 N Y Debris-General Manhole 0 n/a 2023 8SSO11178 8 616 01-APR-24 Other 10667 0 0 0 0 0 0 0 0 0 0 N/A 0 20 80 10 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline None None 2024 8SSO11178 8 616 24-DEC-25 Prison 10667 0 0 0 0 0 0 0 0 0 0 n/a 0 20 80 10 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8SSO11178 California Institution for Men 14901 S Central Ave. Chino, CA. 91710 WWTP same agency N n/a 0 0 0 N Y Debris-General n/a Gravity Mainline n/a none none 2025 8SSO11178 8 616 06-FEB-26 Other 6200 0 0 0 0 0 0 0 0 0 0 0 10.5 80 10 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 10 0 0 25 0 75 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 95-24 WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline NA NA 2023 5SSO11180 5S 616 28-MAR-24 Prison 4200 0 6 2 2 0 0 0 0 0 0 N/A 1 5 40 30 30 0 0 0 100 100 0 0 0 0 0 100 475 475 Upper and Lower 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 SA480105002 001, Elmira, CA WWTP other agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A Blockages are typically excess toilet paper of flushed items. Blockages are cleared immediately. 2024 5SSO11180 5S 616 13-MAR-26 Prison 4300 0 4 2 2 0 0 0 0 0 0 N/A 1 5 40 30 30 0 0 0 100 100 0 0 0 0 0 100 475 475 Upper and Lower 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 SA480105002 001, Elmira, CA WWTP other agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A Blockages are typically caused by excess toilet paper or other flushed items. Blockages are cleared immediately. 2025 5SSO11180 5S 616 13-MAR-26 Prison 4200 0 4 2 2 0 0 0 0 0 0 N/A 1 5 40 30 30 0 0 0 100 100 0 0 0 0 0 100 475 475 Upper and Lower 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 CA4810008 001, Elmira, CA WWTP other agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A Blockages are typically excess toilet paper and other flushable items. Blockages are cleared immediately. 2023 8SSO11181 8 616 01-MAR-24 Other 3100 1 4 1 1 0 0 0 0 0 0 N/A 5 0 3 0 2 0 0 0 5 0 0 0 0 0 0 0 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 833C391307 2870 CLARK AVE NORCO CA 92860 SSS other agency N N N/A 0 N N/A 0 N N/A 0 N N/A 0 N N/A 0 N/A 0 0 0 N Y Debris-General N/A Manhole N/A NONE NONE 2024 8SSO11181 8 616 23-DEC-25 Prison 3100 1 4 1 1 0 0 0 0 0 833391307 n/a 2 10 3 0 2 0 0 0 5 0 0 0 0 0 0 0 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 332353001 14634 RIVER RD EASTVIA 92880 WWTP same agency N N N N/A 0 N N/A 0 N N/A 0 N N/A 0 n/a 0 0 0 N Y Other (specify below) no major spill Other (specify below) no major spill no no 2025 8SSO11181 8 616 13-MAR-26 Other 500 1 4 1 1 0 0 0 0 0 0 0 4.4 3 0 2 0 0 0 5 0 0 0 0 0 0 0 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 332353001 14634 RIVER RD EASTVIA 92880 WWTP other agency N Y wrcrwa 8332353001 N N/A 0 N N/A 0 N N/A 0 N N/A 0 0 0 0 N Y Other (specify below) no major spill Other (specify below) no system failures none no action 2023 5SSO11183 5S 616 04-DEC-25 Prison 3021 0 3 3 1 0 0 0 0 0 0 N/A .7 5.2 30 10 60 0 0 0 100 100 0 0 0 0 0 100 59 59 Upper and Lower 5 0 15 85 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 0 4.1 0 5SS010893 CITY OF FOLSOM WWTP other agency N 0 0 0 N Y Debris-General Manhole N/A CLEANING MANHOLES REGUARLY 2023 5SSO11184 5S 616 26-MAR-24 Prison 4500 0 8 5 1 0 0 0 0 0 0 NA 0 5 40 20 40 0 0 0 100 0 0 0 0 0 0 0 435 435 Upper and Lower 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A480105002 001, , Elmira, CA WWTP other agency N NA 0 0 0 N Y Other (specify below) NA Other (specify below) NA NA NA 2024 5SSO11184 5S 616 01-APR-25 Prison 4500 0 8 5 1 0 0 0 0 0 0 N/A 0 5 40 20 40 0 0 0 100 0 0 0 0 0 0 0 435 435 Upper and Lower 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A480105002 001, , Elmira, CA WWTP other agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 5SSO11184 5S 616 09-MAR-26 Prison 3800 0 8 5 1 0 0 0 0 0 0 N/A 0 5 40 20 40 0 0 0 100 0 0 0 0 0 0 0 435 435 Upper and Lower 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A480105002 001, , Elmira, CA WWTP other agency N N/A 0 0 0 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 5SSO11185 5F 616 30-DEC-25 Prison 5000 0 4 1 2 0 3 1 0 0 0 n/a 0 4.3 50 20 15 15 0 0 100 0 0 0 0 0 0 0 105 105 Upper and Lower 1.5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5d160801001 Corcoran State Prison WWTF, 4001 King Avenue, Corcoran, CA 93212 WWTP same agency N N/A 0 0 0 N Y Debris-General N/A Gravity Mainline N/A N/A N/A 2024 5SSO11185 5F 616 30-DEC-25 Prison 3000 0 4 1 2 0 3 1 0 0 0 N/A 0 4.3 50 20 15 15 0 0 100 0 0 0 0 0 0 0 105 105 Upper and Lower 1.5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5d160801001 Corcoran State Prison WWTF, 4001 King Avenue, Corcoran, CA 93212 WWTP same agency N N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A N/A 2025 5SSO11185 5F 616 27-APR-26 Prison 5000 0 3 1 2 0 2 1 0 0 0 n/a 0 4.3 50 20 15 15 0 0 100 0 0 0 0 0 0 0 105 105 Upper and Lower 1.5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5d160801001 Corcoran State Prison WWTF, 4001 King Avenue, Corcoran, CA 93212 WWTP same agency N N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A N/A 2023 7SSO11186 7 616 02-APR-24 Prison 4800 0 10 1 1 1 0 0 0 0 0 Wastewater operator certification (4 employees) 1 4 35 32 28 0 0 0 95 0 0 5 0 0 0 5 1 1 Lower only 1 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 4 1 7SSO10516 Calipatria Municipal CS, P.O. Box 167 , Calipatria, CA 92233 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 N Y Debris-Rags Due to inmate population, upon cell inspections inmates will flush contraband down the sewer system Manhole n/a n/a Preventative maintenance work orders to inspect sewer lid access points to prevent obstructions. Portable pumps are used to transfer sewer to the closest manhole. Contracted company arrives to clear out any blockage. 2024 7SSO11186 7 616 31-DEC-25 Prison 4800 0 10 1 1 1 0 0 0 0 0 Wastewater Operator Certification (4 employees) 1 4 35 32 28 0 0 0 95 0 0 5 0 0 0 5 1 1 Lower only 1 0 0 100 0 35 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 4 1 7A130102041 Calipatria Municipal CS, P.O. Box 167, Calipatria, CA 92233 SSS other agency N n/a 0 0 0 Debris-Rags Due to incarcerated population, upon cell inspections incarcerated persons will flush contraband down the sewer system Manhole n/a n/a Preventative maintenance work orders to inspect sewer lid access points to prevent obstructions. Portable pumps are used to transfer sewer to the closest manhole. Contracted company arrives to clear out any blockage. 2023 7SSO11187 7 616 21-MAR-24 Prison 4206 3 3 0 1 0 0 0 0 0 0 One staff has taken Wastewater Collections 1 correspondence course. This is CPM II 0 5 13 43 44 0 0 0 100 0 0 0 0 0 0 0 103 103 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 1 7SSO11187 Centinela State Prison CS, P.O. Box 731 , Imperial, CA 92251 WWTP same agency N N none 7SSO11187 N none 7SSO11187 N none 7SSO11187 N none 7SSO11187 N none 7SSO11187 None 0 0 0 Y Y Other (specify below) None occurred in 2023. Other (specify below) None None None 2024 7SSO11187 7 616 03-MAR-25 Prison 4059 3 3 2 1 0 0 0 0 0 0 NA 0 5 13 43 44 0 0 0 100 0 0 0 0 0 0 0 103 103 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 .2 .2 7SSO11187 WWTP same agency N NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 7SSO11187 7 616 29-APR-26 Prison 4059 1 5 2 1 0 0 0 0 0 0 N/A 0 5 13 43 44 0 0 0 100 0 0 0 0 0 0 0 103 103 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 .2 .2 7SSO11187 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 5SSO11270 5F 616 09-FEB-26 Prison 2100 0 4 1 1 4 4 3 0 0 4 None 0 4 10 30 50 10 0 0 100 0 0 0 0 0 0 0 0 0 None 4 0 0 100 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11270 23370 Road 22, Chowchilla Ca 93610 WWTP same agency N N No 0 0 0 Y Y Other (specify below) None Pump Station - Mechanical None NoneNo 2024 5SSO11270 5F 616 02-FEB-26 Prison 2100 0 4 1 1 4 4 2 0 0 4 0 0 4 0 30 60 10 0 0 100 0 0 0 0 0 0 0 0 0 None 4 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11270 23370 Road 22, Chowchilla Ca 93610 WWTP same agency N N none none no 0 0 0 Y Y Other (specify below) None Pump Station - Mechanical None None None 2025 5SSO11270 5F 616 09-FEB-26 Prison 2136 0 4 1 1 4 4 2 0 0 4 None 0 4 10 30 50 10 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11270 23370 Road 22, Chowchilla Ca 93610 WWTP same agency N N no 0 0 0 Y Y Other (specify below) None Pump Station - Mechanical None None 2023 3SSO11191 3 616 23-MAR-24 Prison 4200 0 15 5 1 0 0 0 0 0 4 N/A 0 6 45 25 25 0 0 5 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 100 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 3sso10335 Sewage Treatment Plant CS, P.O. Box 156 , Soledad, CA 93960 SSS same agency Y Y Salinas valley State Prison 3SSO11472 N/A 0 0 0 N Y Vandalism (specify below) Inmates flushing anything and everything into the system and causing back ups. Gravity Mainline N/A N/A Tree and root removal as possible, replacement of old gravity mainlines when able to or if they become too root intruded to clean out. Hyrdo jet as preventive maintenance. 2023 5SSO11192 5S 616 15-APR-26 Prison 2900 0 10 3 2 0 0 0 0 0 0 0 3 20 35 40 5 0 0 100 0 0 0 0 0 0 0 889 0 Upper and Lower 1.2 0 10 10 3 17 40 10 10 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 .2 1.5 .7 5A34CR00861 Sacramento Area Sewer District Creek Crossing Project, , CA SSS same agency N 0 0 0 N Y Debris-General n/a Manhole n/a n/a 2024 5SSO11192 5S 616 15-APR-26 Prison 2900 0 10 3 2 0 0 0 0 0 0 n/a 0 3 20 35 40 5 0 0 100 0 0 0 0 0 0 0 889 0 Upper and Lower 1.2 0 10 10 3 17 40 10 10 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 .2 1.5 .7 5A34CR00861 Sacramento Area Sewer District Creek Crossing Project, , CA SSS same agency N N N 0 0 N 0 0 N 0 0 N 0 0 n/a 0 0 0 N Y Debris-General n/a Manhole n/a n/a n/a 2025 5SSO11192 5S 616 17-MAR-26 Prison 2900 0 10 3 2 0 0 0 0 0 0 6 Stationary Engineers, 4 Water Treatment Plant Operators, 7 Plumbers 0 3 20 35 40 5 0 0 100 0 0 0 0 0 0 0 889 0 Upper and Lower 1.2 0 10 10 3 17 40 10 10 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 .2 1.5 .7 5A34CR00861 17620 Ephebe Lane Grass Valley CA 95949, 17620 West Ephebe Lane, Grass Valley , CA 95949 SSS same agency N N N 0 0 N 0 0 N 0 0 N 0 0 n/a 0 0 0 N Y Debris-General N/A Manhole N/A N/A 2025 6SSO11193 6A 616 01-APR-26 Other 3800 0 7 2 0 0 3 0 0 0 0 0 0 3 30 20 40 10 0 0 100 0 0 0 0 0 0 0 0 0 None 0 1 0 99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 .1 6A186000500 CCC @ Susanville, CSP-LC WTF, PO Box 790 , Susanville, CA 96130 WWTP same agency N 0 0 0 Y Fats, Oil and Grease (FOG) Manhole n/a none Replacement of compromised grease interceptor tanks (set parallel for redundancy) 2023 7SSO11194 7 616 27-MAR-24 Other 3045 0 11 4 1 0 0 0 0 0 0 n/a 1 3 20 30 40 10 0 0 100 0 0 100 0 0 0 100 1 1 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 1 0 7A33008090001 CVSP-19025 Wiley's Well Road, Blythe, Ca. 92225 WWTP same agency N N n/a 0 0 0 Y Y Other (specify below) There were no major spills at ISP in 2023. Other (specify below) There were no major spill or infrastructure failure points at ISP in 2023. n/a n/a 2024 7SSO11194 7 616 29-DEC-25 Other 3045 0 3 1 1 0 2 1 0 0 0 n/a 1 3 20 30 40 10 0 0 100 0 0 100 0 0 0 100 1 1 Upper and Lower .6 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 .2 0 7B330809001 Ironwood State Prison, 19005 Wiley's Well Road, Blythe, CA 92225 WWTP same agency N N n/a 0 0 0 Y Y Other (specify below) There were no major spills at ISP in 2024. Other (specify below) There were no major spill or infrastructure failure points at ISP in 2024. n/a n/a 2025 7SSO11194 7 616 25-MAR-26 Other 3050 0 11 4 1 0 0 0 0 0 0 n/a 1 3 20 30 40 10 0 0 100 0 0 100 0 0 0 100 1 1 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 1 0 7B330809001 Ironwood State Prison, 19005 Wiley's Well Road, Blythe, CA 92225 WWTP same agency N n/a 0 0 0 Y Y Other (specify below) There were no major spills at ISP in 2025. Other (specify below) There were no major spill or infrastructure failure points at ISP in 2025. n/a n/a 2023 5SSO11195 5F 616 26-NOV-25 Prison 5142 0 29 6 1 0 0 0 0 0 0 .5 3.5 0 0 0 0 0 87 87 0 0 0 0 0 23 23 1 1 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 city of Delano Unknown WWTP other agency N 0 0 0 N Y Pump Station Failure - Mechanical None Pump Station - Mechanical None Zero No deficiencies at this time. 2024 5SSO11195 5F 616 09-DEC-25 Prison 4272 0 29 6 1 0 0 0 0 0 0 .5 3.5 0 0 0 0 0 87 87 0 0 0 0 0 23 23 1 1 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 City of Delano WWTP other agency N 0 0 0 Pump Station Failure - Mechanical Pump Station - Mechanical None None None 2025 5SSO11195 5F 616 04-MAY-26 Prison 4085 0 29 6 1 0 0 0 0 0 0 .5 3.5 0 0 0 0 0 87 87 0 0 0 0 0 23 23 1 1 Upper and Lower 1 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 City of Delano WWTP same agency N 0 0 0 Pump Station Failure - Mechanical Pump Station - Mechanical none none none 2023 5SSO11196 5F 616 31-DEC-25 Prison 4000 1 2 3 4 0 0 0 0 0 0 n?A 1 5 0 0 90 0 0 0 0 0 0 10 0 0 0 0 175 175 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 2 0 0 5D100805001 Pleasant Valley State Prison WWTF, 24863 West Jayne Avenue, Coalinga, CA 93210 WWTP same agency N na na N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A Staff provide repairs on a continuous basis. 2024 5SSO11196 5F 616 31-DEC-25 Prison 4000 1 2 3 4 0 0 0 0 0 0 N/A 1 5 0 0 90 0 0 0 0 0 0 10 0 0 0 0 175 175 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 2 0 0 5D100805001 Pleasant Valley State Prison WWTF, 24863 West Jayne Avenue, Coalinga, CA 93210 WWTP same agency N N na na n/a 0 0 0 Y Y Debris-General n/a Gravity Mainline n/a N/A Staff provide repairs on a continuous basis. 2025 2SSO11198 2 616 21-MAY-26 Prison 4850 0 12 2 3 1 2 2 5 0 14 N/A .5 1.8 80 15 5 0 0 0 100 5 95 0 0 0 0 100 110 110 Upper and Lower 1 0 5 10 25 45 15 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 1 0 2215116001 Central Marin Sanitation Agency (CMSA) 1301 Anderson San Rafael, CA, 94901-5339 WWTP other agency Y N County of Marin - San Quentin Village Sewer Maintenance District N/A N/A 0 0 0 Y Y Debris from Lateral N/A Gravity Mainline N/A N/A Implement CCTV Inspections. 2023 5SSO20034 5F 616 02-APR-24 Municipal(Public) 647 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board5 5 3 100 0 0 0 0 0 100 55 45 0 0 0 0 100 167 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigations No action taken 2023 5SSO20034 5F 616 26-JAN-24 Municipal(Public) 647 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 5 3 100 0 0 0 0 0 100 55 45 0 0 0 0 100 167 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 unknown Cutler-Orosi WWTP WWTP other agency N 0 0 0 N N Other (specify below) No major spill reported Other (specify below) No failure points No spill investigation No action taken 2024 5SSO20034 5F 616 07-OCT-25 Municipal(Public) 275 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant Operator through the SWRCB 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N/A 0 0 0 N Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2025 5SSO20034 5F 616 12-MAR-26 Municipal(Public) 647 4 3 2 2 20 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 5 3 100 0 0 0 0 0 100 55 45 0 0 0 0 100 167 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 5d540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spill reported Other (specify below) no failure points no ongoing spill investigations no actions taken 2023 5SSO10801 5R 616 29-MAR-24 Municipal(Public) 92333 3 14 1 1 3 1 3 8 0 0 N/A 8 435 18 59 15 8 0 0 100 20 18 56 6 0 0 100 32821 0 None 0 1 24 38 25 9 2 0 0 1 100 2 3 1 0 0 0 0 0 0 6 0 5 4 3 0 0 0 0 0 12 20 384 12 5A45013001 Clear Creek WWTP WWTP same agency 5A45013004 Stillwater WWTP WWTP same agency N N/A 15 4 6 Y Y Root Intrusion Fats, Oils, and Greases Vandalism Gravity Mainline N/A None CCTV Inspections and immediate repair. 2024 5SSO10801 5R 616 25-NOV-25 Municipal(Public) 93600 2 13 1 1 2 3 4 7 0 0 CWEA 8 435 17 60 15 4 4 0 100 20 18 56 6 0 0 100 32717 0 None 0 1 24 38 25 9 2 0 0 1 100 2 3 1 0 0 0 0 0 0 6 0 5 4 3 0 0 0 0 0 12 20 437.6 22.1 5A450103001 Clear Creek WWTP, 2220 Metz Road, Anderson, CA 96007 WWTP same agency 5A450103004 001, , CA WWTP same agency N N/A 15 4 6 Y Y Debris-Rags N/A Manhole N/A None Throughout the 2024 calendar year, the Redding CS completed the following notable actions to address system deficiencies: *Rehabilitation of a major lift station *Replacement of 7-miles of some of the oldest sewer mains within the system *Root control using chemical herbicide throughout a 60,000 ft segment *Inspection of all remote manholes *27 sewer mainline repairs 2025 5SSO10801 5R 616 18-MAR-26 Municipal(Public) 93600 4 12 1 1 1 3 4 6 0 0 N/A 7.8 437.7 16 57 15 3 4 5 100 20 19 55 6 0 0 100 39500 0 None 0 2 25 39 22 9 2 0 0 1 100 2 3 1 0 0 0 0 0 0 6 0 5 4 3 0 0 0 0 0 12 20 420.6 68.9 5A450103001 Clear Creek WWTP, 2220 Metz Road, Anderson, CA 96007 WWTP same agency 5A450103004 001, , CA WWTP same agency N N/A 15 4 6 Y Y Natural Disaster (specify below) Extreme storms in December 2025 caused three spill events Manhole N/A None Smoke testing to find source of I/I in the East Cypress and Hartnell area where two spills occurred during the December storms. 2023 5SSO10805 5R 616 23-DEC-25 Municipal(Public) 8244 1 2 1 0 0 0 0 0 0 0 1 22 30 30 20 10 0 0 100 100 0 0 0 0 0 100 2392 0 None 0 5 0 0 30 65 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 11 1 5SSO10805 City of Corning WWTP 25010 Gardiner Ferry Rd Corning, CA WWTP same agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline none Increase Cleanings 2024 5SSO10805 5R 616 23-DEC-25 Municipal(Public) 8244 1 2 1 0 0 0 0 0 0 0 1 22 30 30 20 10 0 0 100 100 0 0 0 0 0 100 2392 0 None 0 5 0 0 30 65 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 11 1 5SSO10805 City of Corning WWTP 25010 Gardiner Ferry Rd Corning, CA WWTP same agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Root Intrusion Gravity Mainline none Increase cleaning 2025 5SSO10805 5R 616 19-MAR-26 Municipal(Public) 8244 1 2 1 0 0 0 0 0 0 0 1 22 30 30 20 10 0 0 100 1 0 0 0 0 0 100 2392 0 None 0 5 0 0 30 65 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 0 1 0 5SSO10805 City of Corning WWTP 25010 Gardiner Ferry Rd Corning, CA WWTP same agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline none increased cleanings 2023 5SSO10806 5R 616 01-APR-24 Municipal(Public) 3484 1 2 1 1 0 4 1 0 0 1 3 18 32 59 9 0 0 0 100 70 0 30 0 0 0 100 1149 1149 Upper and Lower 11 0 6 94 0 0 0 0 0 0 100 0 1 3 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 5ss010806 3425 live oak rd WWTP same agency N 5 0 0 N N Pump Station Failure - Controls Pump Station - Controls none 2019 clean water grant to address I&I issues 2025 5SSO10810 5R 616 25-MAR-26 Municipal(Public) 802 2 2 1 1 0 0 0 0 0 0 0 3.5 91 9 0 0 0 0 100 0 0 0 0 0 0 0 370 370 Lower only 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 .4 5A321010001 Delleker WWTP, 73821 Industrial Way Portola, CA 96122 WWTP same agency N 0 0 0 N N Debris-General Other (specify below) Blockages / 6-inch Collection Lines (Mains) None on-going from 2025 The District has implemented a plan to inspect the entire system and identify and correct areas of concern. We are using a Preliminary Engineering Report (conducted by Farr West Engineering) as a guide 2023 2SSO10202 2 616 30-DEC-25 Municipal(Public) 7000 0 1 1 1 2 0 0 0 0 0 NA 1 29 84 11 5 0 0 0 100 0 0 100 0 0 0 100 2564 0 None 0 0 0 10 70 20 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 3 0 0 0 0 0 0 0 3 0 8 1 2 215023001 Sausalito CS, 1 East Road, Sausalito, CA 94965 SSS same agency 2 215015001 SASM WWTP Discharge Point 001, , Mill Valley, CA SSS same agency N NA 10 2 2 N Y Root Intrusion roots/debris from lateral Gravity Mainline none TCSD is currently participating in a Capital Improvement Program since 2018. 2024 2SSO10202 2 616 23-MAR-26 Municipal(Public) 7500 0 1 1 1 2 0 0 0 0 0 N/A 1 29 84 11 5 0 0 0 100 0 0 100 0 0 0 100 2565 0 None 0 0 0 10 70 20 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 3 0 0 0 0 0 0 0 3 0 8 1 2215023001 Sausalito CS East Road, Sausalito, CA 94965 SSS same agency 2215015001 SASM WWTP Discharge Point 001, Mill Valley, CA SSS same agency N N/A 10 2 2 N Y Root Intrusion roots/debris from lateral Gravity Mainline none TCSD is currently participating in an ongoing Capital Improvement Program since 2018 2025 2SSO10202 2 616 23-MAR-26 Municipal(Public) 7500 0 1 1 1 2 0 0 0 0 0 N/A 1 29 84 11 5 0 0 0 100 0 0 100 0 0 0 100 2567 0 None 0 0 0 10 70 20 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 3 0 0 0 0 0 0 0 3 0 10 2 2SSO10189 Sausalito CS, 1 East Road Sausalito, CA 94965 SSS same agency 2SSO10188 Sasm CS, 26 Corte Madera Avenue, Mill Valley, CA 94941 SSS same agency N N/A 10 2 2 N Y Root Intrusion roots/debris from lateral Gravity Mainline none TCSD is currently participating in a Capital Improvement Program since 2018 2023 7SSO10506 7 616 29-MAR-24 Municipal(Public) 33901 1 6 1 1 1 6 0 1 0 0 1 122 0 77 15 4 0 4 100 0 0 100 0 0 0 100 10227 2 None 66 1 44 55 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 82 5 7A330109012 Alan Horton WWTP, 14601 Verbena , Desert Hot Springs, CA 92240 WWTP same agency N 0 0 0 Y Y Other (specify below) No Spills occurred during the Calendar Year 2023 Other (specify below) No Spills occurred during the Calendar Year 2023 No Spills occurred during the Calendar Year 2023, no spill investigations required. No Spills occurred during the Calendar Year 2023, no corrective actions needed. 2024 7SSO10506 7 616 21-MAR-25 Municipal(Public) 33904 2 5 1 0 3 5 0 0 0 8 N/A 1 122 3 78 16 3 0 0 100 0 0 100 0 0 0 100 10301 186 None 67 3 43 54 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9.8 .9 7A330109012 Alan Horton WWTP, 14601 Verbena , Desert Hot Springs, CA 92240 WWTP same agency N N/A 0 0 0 Y Y Vandalism (specify below) This spill was caused by vandalism from homeless in the area dumping trash into the manhole causing a blockage in the mainline system. Spill ID 896595 Other (specify below) No force main or lift station failures No ongoing spill investigations. The scheduled easement check and inspection will now occur quarterly basis to ensure manholes are not used to dumb trash or other items within them. 2025 7SSO10506 7 616 02-FEB-26 Municipal(Public) 33904 3 5 2 0 4 4 0 0 0 8 N/A 0 106 3 78 3 0 0 0 100 0 0 0 0 0 0 0 9986 186 None 59 3 43 54 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 23 .6 7A330109012 Alan Horton WWTP, 14601 Verbena , Desert Hot Springs, CA 92240 WWTP same agency N N/A 0 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A No ongoing spill investigations Routinely scheduled air vac inspections on a monthly basis to prevent any debris from plugging up the air vacs causing issues. 2023 7SSO20023 7 616 01-APR-24 Municipal(Public) 30325 3 4 2 1 9 0 0 1 0 0 NA 5 125 6 79 12 3 0 0 100 0 0 100 0 0 0 100 10838 25 None 65 6 2 9 2 0 0 0 0 81 100 0 0 1 0 0 0 0 0 0 1 1 1 2 0 0 0 0 0 0 4 0 65 18 7A330100015 Banning STP-Non NPDES, 2242 East Charles Street, Banning, CA 92220 WWTP same agency N NA 2 0 2 Y Y Root Intrusion Major spills within the City sewer system have been caused by roots and grease deposition. Gravity Mainline Historically, pump stations and mainlines have been identified as system infrastructure failure points. these systems have not had any failures this past year. There are no ongoing investigations at this time. The City has adopted a preventive maintenance program that addresses the following programs. Root control (foam spraying), mainline cleaning, mainline video and roach control of manholes. 2024 7SSO20023 7 616 23-JUN-26 Municipal(Public) 31680 1 6 1 1 8 1 0 1 0 0 0 5 130 5 78 15 2 0 0 100 0 0 100 0 0 0 100 10838 0 None 0 6 2 9 2 0 0 0 0 81 100 0 0 1 0 0 0 0 0 0 1 1 1 2 0 0 0 0 0 0 4 0 94.8 36 7A330100015 Banning STP-Non NPDES, 2242 East Charles Street, Banning, CA 92220 WWTP same agency N N/A 2 0 2 Y Y Debris from Construction N/A Lower Lateral N/A None The City has adopted a preventive maintenance program that addresses the following programs; Root Control (Root Foaming areas of concern), Mainline Cleaning, CCTV, and Roach Control by spraying insecticide on walls of manholes. 2025 7SSO20023 7 616 23-JUN-26 Municipal(Public) 31680 1 11 1 1 12 1 0 1 0 0 None 5 128 5 78 13 3 0 0 98 0 0 2 0 0 0 2 11500 0 None 0 6 2 9 2 0 0 0 0 81 100 0 0 1 0 0 0 0 0 0 1 1 1 2 0 0 0 0 0 0 4 0 65 23 7A330100015 Banning STP-Non NPDES, 2242 East Charles Street, Banning, CA 92220 WWTP other agency N none 2 0 2 Y Root Intrusion Lower Lateral None Root control and Roach Control 2023 7SSO10508 7 616 25-MAR-24 Municipal(Public) 0 1 1 1 1 1 0 0 0 0 0 State Water Resources Control Board. 0 3 0 35 65 0 0 0 100 0 0 0 0 0 0 0 15 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 7B330118011 Blythe Airport STF, 13341 Mesa Dr. Blythe CA 92225 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills have occurred in the Blythe Airport System. Other (specify below) No infrastructure failures have been identified in the Blythe Airport System. No ongoing spills are investigated at this Blythe airport System. N/A 2024 7SSO10508 7 616 15-APR-25 Municipal(Public) 0 1 1 1 1 1 0 0 0 0 0 California State Water Resources Control Board. 0 3 0 35 65 0 0 0 100 0 0 0 0 0 0 0 15 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 .5 7B330118011 Blythe Airport STF, 440 South Main Street, Blythe, CA 92225-2717 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills have occurred. Other (specify below) No failure points identified. No spills have occurred. No spills have occurred. 2025 7SSO10508 7 616 26-MAR-26 Municipal(Public) 0 1 1 1 1 1 0 0 0 0 0 0 3 0 35 65 0 0 0 100 0 0 0 0 0 0 0 15 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 7B330118011 Blythe Airport STF, 440 South Main Street, Blythe, CA 92225-2717 WWTP same agency N 0 0 0 Y N Other (specify below) No spills have occurred. Other (specify below) No spills have occurred. No spills have occurred. No spills have occurred. 2024 4SSO10401 4 616 27-MAR-25 Municipal(Public) 29898 2 3 1 1 0 0 0 0 0 0 0 6 106 20 80 0 0 0 0 100 0 0 100 0 0 0 100 9125 0 None 62 2 6 18 40 24 10 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 2 95.7 17.5 4B190107019 001, , Pomona, CA 91766 SSS other agency N N/A 0 0 0 N Y Debris from Lateral N/A Manhole N/A N/A N/A 2025 4SSO10401 4 616 24-MAR-26 Municipal(Public) 29898 2 3 1 1 0 0 0 0 0 0 0 6 106 20 80 0 0 0 0 100 0 0 100 0 0 0 100 9125 0 None 62 2 6 18 40 20 10 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 2 94.3 19.5 4B190107019 001, , Pomona, CA 91766 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Debris from Lateral N/A Manhole N/A N/A N/A 2023 4SSO10402 4 616 28-MAR-24 Municipal(Public) 83636 6 26 3 1 1 1 1 1 0 0 1 167 0 92 7 1 0 0 100 100 0 0 0 0 0 100 23884 0 None 0 0 0 4 12 84 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 4SSO11389 LA County SD 3 SSS other agency 4SSO11398 LA County SD 19 SSS other agency 4SSO11423 Long Beach Water Dept. CS (SSO program), 1800 East Wardlow Road, Long Beach, CA 90807 WWTP other agency 4SSO11366 Agoura Hills CS, 30001 Ladyface Court, Agoura Hills, CA 91301 WWTP other agency Y N Bellflower City CS 4SSO11366 N Long Beach Water Dept CS 4SSO11423 N/A 0 0 7 Y Y Other (specify below) None Other (specify below) None None None 2024 4SSO10402 4 616 24-MAR-25 Municipal(Public) 80162 2 27 3 1 1 2 1 0 0 0 None .1 166.2 0 92 7 1 0 0 100 100 0 0 0 0 0 100 23884 0 None 0 0 0 4 12 84 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 72.3 .5 4SSO11389 LA County SD 3 SSS other agency 4SSO11398 LA County SD 19 SSS other agency 4SSO11423 Long Beach Water Dept. CS (SSO Program), 1800 E. Wardlow Rd, Long Beach, CA 90807 WWTP other agency 4SSO10390 Hawaiian Gardens City CS SSS other agency Y N Bellflower City CS 4SSO11366 N Cerritos City CS 4SSO10390 None 0 0 7 Y Y Root Intrusion Debris-Rags Gravity Mainline None None Inspected sewer using CCTV, Added Sewer to Preventative Maintenance Program, Added sewer to 90-day rod sewer-periodic cleaning (2 sections). 2025 4SSO10402 4 616 18-MAR-26 Municipal(Public) 82500 3 26 3 1 2 2 1 0 0 0 0 .1 166.1 0 92 7 3 0 0 100 100 0 0 0 0 0 100 23884 0 None 0 0 0 4 12 84 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 44.1 .2 4B190107015 16515 Piuma Ave, Cerritos, CA 90703 WWTP other agency Y N Bellflower City CS 4SSO11366 N Cerritos City CS 4SSO10390 NO 14 0 7 Y Y Root Intrusion None Gravity Mainline None None The current maintenance program will be adjusted. The mainline schedule will be changed from a 90-day cycle to a 60-day cycle. The mainline will also be televised to determine if slip-lining is necessary. 2023 7SSO20013 7 616 15-APR-24 Municipal(Public) 3000 0 1 1 0 1 0 0 0 0 1 NA 3 16 20 80 0 0 0 0 0 0 0 100 0 0 0 0 384 384 None 6 100 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 7 7 7A370125001 Borrego WD-Ram's Hill, 4861 Borrego Springs Road, Borrego Springs, CA 92004 WWTP same agency N N NA NA NA 0 0 0 N Y Other (specify below) N/A - No Spills Other (specify below) N/A - No Spills N/A - No Spills PREMPTIVE ACTIONS: A WWTP Pant renovation occurred in 2023 including grit removal, new blower motor, new oxydation ditch weir and replaced all moving parts at both clarifier's with stainless steel, exposed concrete repairs throughout, and electrical upgrades. $800,000 funded by CA Grant. 2023 7SSO10516 7 616 05-JAN-26 Municipal(Public) 10000 0 1 1 0 0 0 0 0 0 0 NA 7 9 2 31 24 0 0 0 57 0 0 43 0 0 0 43 750 0 None 0 0 0 26 18 0 0 0 0 56 100 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 7A130102041 Calipatria Municipal CS, P.O. Box 167 , Calipatria, CA 92233 WWTP same agency N NA 0 0 0 N Y Debris-General NA Pump Station - Mechanical NA No ongoing spill investigation at the present. The City of Calipatria has not had spills in several years. NA 2024 7SSO10516 7 616 31-DEC-25 Municipal(Public) 10000 0 1 1 0 0 0 0 0 0 0 NA 7.7 9.9 2 31 24 0 0 0 57 0 0 43 0 0 0 43 750 0 None 0 0 0 26 18 0 0 0 0 56 100 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 7SSO10516 Calipatria Municipal CS, P.O. Box 167 , Calipatria, CA 92233 WWTP same agency N NA 0 0 0 Y Debris-General NA Pump Station - Mechanical NA No ongoing spill investigation at the present. The City of Calipatria has no had spills in several years NA 2025 7SSO10516 7 616 26-MAR-26 Municipal(Public) 10000 1 1 1 0 0 0 0 0 0 1 NA 7.7 9.9 2 31 24 0 0 0 57 0 0 43 0 0 0 43 750 0 None 0 0 0 26 18 0 0 0 0 56 100 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 7A130102041 Calipatria Municipal CS, P.O. Box 167 , Calipatria, CA 92233 WWTP same agency N NA 0 0 0 N Y Debris-General NA Manhole No ongoing spill investigation at the present. The City of Calipatria hasn't had spills in many years. NA 2023 7SSO10514 7 616 21-OCT-25 Municipal(Public) 27849 7 5 2 1 1 0 0 0 0 0 CWEA 3.7 81.8 3 61 26 9 0 1 100 57 3 40 0 0 0 100 5532 0 None 0 0 10 10 35 35 10 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 36 0 7A130100011 City of Brawley POTW, 5015 Best Road, Brawley, CA 92227 WWTP same agency N N/A 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Other (specify below) N/A N/A N/A 2024 7SSO10514 7 616 01-DEC-25 Municipal(Public) 28188 7 6 3 1 1 0 0 0 0 0 n/a 3.7 81.8 3 61 26 9 0 1 100 57 3 40 0 0 0 100 5532 0 None 0 0 10 10 35 35 10 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 6 0 7A130100011 City of Brawley POTW, 5015 Best Road, Brawley, CA 92227 WWTP same agency N N/A N/A N/A N/A N/A N/A 0 0 0 Y Y Other (specify below) No spills to report in 2024 Other (specify below) No failure points to report No ongoing investigations City of Brawley has contracted NV5 Engineering services to Audit and Update our SSMP to ensure is up to date and reflects current regulations. 2025 7SSO10514 7 616 30-MAR-26 Municipal(Public) 28188 7 4 3 1 0 0 0 0 0 0 N/A 3.7 81.8 3 61 26 9 0 1 100 57 3 40 0 0 0 100 5532 0 None 0 0 10 10 35 35 10 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 1.5 447.3 7A130100011 City of Brawley POTW, 5015 Best Road, Brawley, CA 92227 WWTP same agency N N/A N/A N/A N/A N/A N/A 0 0 0 Y Other (specify below) Flash flood in September 2025 exceeded the headworks inflow capacity, which caused a spill in that area. The Spill Report was submitted to CIWQS, Spill Event ID: 902922 Other (specify below) No failure points identified in the system during this reporting period. No ongoing spill investigations. City of Brawley has contracted NV5 Engineering to assist in Auditing and Updating the city's SSMP. 2023 4SSO10403 4 616 02-APR-24 Municipal(Public) 33641 2 13 2 1 0 1 1 0 0 0 0 34 0 96 4 0 0 0 100 0 0 0 0 0 0 0 5787 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 2 Y Y Other (specify below) None Other (specify below) None None None 2025 4SSO10403 4 616 01-APR-26 Municipal(Public) 31807 2 16 2 1 0 1 1 0 0 0 0 0 33.4 0 96 4 0 0 0 100 0 0 0 0 0 0 0 5787 0 None 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.3 .3 4B190107013 Joint Water Pollution Control Plant (A.K. Warrn Water Resource Facility), 24501 S Figueron St, Carson, CA 90745 SSS other agency N 0 0 2 Y Y Fats, Oil and Grease (FOG) See Spill Event ID 90032 in CIWQS Gravity Mainline Forward the grease accumulation report to the Environmental Programs Division for further investigation. Spill corrective action: Added Sewer to Preventive Maintenance Program, Enforcement action against Fats, Oil, and Grease (FOG) source, Inspected Sewer Using CCTV to Determine Cause 20.a. If other, describe: 20.b. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps: Inspected the sewer using CCTV and added it to a 60-day hydro preventive maintenance program. 2023 4SSO10404 4 616 02-DEC-25 Municipal(Public) 20053 2 18 3 1 0 1 0 0 0 0 0 36 0 97 3 0 0 0 100 0 0 0 0 0 0 0 4896 0 None 0 0 0 4 32 39 25 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 0 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4B190107013 Joint Water Pollution Control Plant, Carson, CA WWTP other agency N 0 0 0 Y Y Other (specify below) No spill incidents in 2023. Other (specify below) No spill incidents in 2023. None. None. 2024 4SSO10404 4 616 01-DEC-25 Municipal(Public) 20921 1 15 2 1 0 0 0 0 0 0 N/A 0 36 0 96 4 0 0 0 100 0 0 0 0 0 0 0 4896 0 None 0 0 0 4 32 39 25 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11.2 .3 4SSO11391 County Sanitation District No. 5 CS, Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, Whittier, CA SSS other agency 4B190107013 Joint Water Pollution Control Plant, Carson, CA WWTP other agency N N/A 0 0 1 Y Y Other (specify below) No spill incidents in 2024 Other (specify below) No spill incidents in 2024 No spill incidents in 2024 No spill incidents in 2024 2025 4SSO10404 4 616 03-MAR-26 Municipal(Public) 20921 2 16 2 1 0 1 1 0 0 0 0 0 36 0 96 4 0 0 0 100 0 0 0 0 0 0 0 4896 0 None 0 0 0 4 32 39 25 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8.7 .2 4B190107013 Joint Water Pollution Control Plant (A.K. Warrn Water Resource Facility), 24501 S Figueroa St, Carson, CA 90745 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 1 Y Other (specify below) NO SSO 2025 Other (specify below) NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 7SSO10519 7 616 26-MAR-24 Municipal(Public) 21233 2 4 1 0 2 1 0 1 1 0 N/A 10 50 0 85 12 3 0 0 100 65 0 35 0 0 0 100 6819 0 None 0 10 30 30 0 0 0 0 0 30 100 0 2 2 0 0 0 0 0 0 4 1 4 5 2 0 0 0 0 0 12 0 4 1 7SSO10519 Imperial City CS, 420 South Imperial Avenue, Imperial, CA 92251 WWTP same agency N N N/A N/A N/A 1 9 1 Y Y Natural Disaster (specify below) Had air release valve leak after earthquake. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A Continuing investigation of aging ductile iron fixtures on force mains and replacing when possible. Located vulnerable areas within collection system and repair/replace when possible to be proactive against spills. 2024 7SSO10519 7 616 15-APR-25 Municipal(Public) 21591 0 2 1 1 0 0 0 0 0 0 N/A 10 52 0 82 15 3 0 0 100 55 20 25 0 0 0 100 0 0 None 0 10 30 30 0 0 0 0 0 30 100 0 3 2 0 0 0 0 0 0 5 1 3 5 2 0 0 0 0 0 11 0 3 .5 7A130106011 Imperial Water Pollution Control Plant 701 East 14th Street, Imperial, CA 92251 WWTP same agency N N N/A N/A N/A 2 10 1 Y Y Other (specify below) Spills in 2024 were caused by: an earthquake, which caused an air relief/vacuum valve to crack at the nipple. Ductile pipe corrosion caused a spill on a force main sewer. Last spill was due to above ground lift station piping pinhole leak. Force Main All 2024 spills were on a force main sewer system or the associated parts: underground ductile piping failure, air relief/vacuum nipple failure, discharge piping pinhole leak. None Continuing to assess most at-risk areas within the collection system and identify and repair when necessary. Two additional collection worker staff members have been requested for the upcoming fiscal year. 2025 7SSO10519 7 616 12-FEB-26 Municipal(Public) 22339 2 5 1 1 1 1 0 0 0 0 N/A 12 52 0 85 12 3 0 0 100 70 0 30 0 0 0 100 6477 0 None 0 10 30 30 0 0 0 0 0 30 100 0 2 4 0 0 0 0 0 0 6 1 4 2 3 0 0 0 0 0 10 0 5 .1 7A130106011 Imperial Water Pollution Control Plant 701 East 14th Street, Imperial, CA 92251 WWTP same agency N N/A 2 11 1 Y Other (specify below) Corrosion of ductile iron fittings Force Main Corrosion of ductile iron fittings No spills in 2025, but the City of Imperial is continuing to invest in collection system improvements. Multiple CIP projects, including: sewer cleaning, CCTV inspection, and NASSCO certified inspection of the oldest sewers and manholes, manhole rehabilitation and replacement program, and lift station rehabilitation and lining. 2023 4SSO10407 4 616 29-MAR-24 Municipal(Public) 72600 0 4 2 1 1 0 0 0 0 0 NA 0 81 0 94332792 56562092 92905 0 0 100 0 0 0 0 0 0 0 10200 0 None 0 1 1 1 27 25 28 9 0 8 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 2 0 Los Angeles County Sanitation District SSS other agency N N NA 0 0 0 0 26 N Y Fats, Oil and Grease (FOG) NA Manhole NA NA NA 2023 7SSO10520 7 616 28-MAR-24 Municipal(Public) 46000 0 5 1 2 1 3 0 2 0 0 N/A 1 90 2 60 29 7 2 0 100 1 0 0 1 0 0 100 8687 8687 Lower only 16 2 30 39 24 5 0 0 0 0 100 0 1 0 1 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 71 3218 7A330104012 87075 Avenue 54, Coachella, CA 92236 WWTP same agency N n/a 1 1 1 Y Y Natural Disaster (specify below) Tropical Storm Hilary. Gravity Mainline N/A The Sewer Master Plan evaluated the system capacity and identified existing and future deficiencies in the collection system as a result of future developments through year 2040 planning horizon, the Plan sized pipes and pump stations to convey 2040 peak flows and prioritized phased recommended improvements. The Coachella Sanitary District has approved and contacted with Dudek Engineering Consulting for the section on Tyler Street between Avenue 53 and Avenue 54 is priority one on the deficiencies of the Master Plan. This section of pipe continues to receive upstream flows from developments that are being completed in the northern service areas. Dudek Engineering has a contract agreement to assist with deficiencies with in the Sewer Master Plan. 2024 7SSO10520 7 616 17-APR-25 Municipal(Public) 46000 1 4 2 2 1 2 0 2 1 6 6 Certified State Wastewater Operators, ranging from Grade I-V 1 91 2 60 29 7 2 0 100 1 0 0 1 0 0 0 8680 8680 Lower only 16.4 2 30 39 24 5 0 0 0 0 100 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 61.1 8264.1 7A330104012 87075 Avenue 54, Coachella, CA 92236 WWTP same agency N N/A 1 1 1 Y Y Other (specify below) 0 Other (specify below) 0 0 The Sewer Master Plan evaluated the system capacity and identified existing and future deficiencies in the collection system as a result of future developments through year 2040 planning horizon, the Plan sized pipes and pump stations to convey 2040 peak flows and prioritized phased recommended improvements. The Coachella Sanitary District has approved and contacted with Dudek Engineering for the section on Tyler Street between Avenue 53 and Avenue 54 is priority one on the deficiencies of the Master Plan. This section of pipe continues to receive upstream flows from developments that are being completed in the northern service areas. Engineering plans where developed from the CIP project and awarded a contractor. The CIP project has begun and will be completed in 2025. Dudek Engineering has a contract agreement to assist with deficiencies with in the Sewer Master Plan. 2025 7SSO10520 7 616 26-MAR-26 Municipal(Public) 46000 2 2 1 2 1 0 1 2 0 0 5 Certified State Wastewater Operators, ranging from Grades I-V. 1 106 2 60 29 6 2 1 100 1 0 0 1 0 0 0 8275 8275 Lower only 15.6 2 30 39 24 5 0 0 0 0 100 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 89.8 .3 7A330104012 87075 Avenue 54, Coachella, CA 92236 WWTP same agency N n/a 1 1 1 Y Y Other (specify below) n/a Other (specify below) n/a n/a The Sewer Master Plan evaluated the system capacity and identified existing and future deficiencies in the collection system as a result of future developments through year 2040 planning horizon, the Plan sized pipes and pump stations to convey 2040 peak flows and prioritized phased recommended improvements. The Coachella Sanitary District has approved and contacted with Dudek Engineering for the section on Tyler Street between Avenue 53 and Avenue 54 is priority one on the deficiencies of the Master Plan. This section of pipe continues to receive upstream flows from developments that are being completed in the northern service areas. Engineering plans where developed from the CIP project and awarded a contractor. The CIP project was completed in 2025. Dudek Engineering has a contract agreement to assist with deficiencies with in the Sewer Master Plan. 2023 4SSO10408 4 616 26-MAR-24 Municipal(Public) 35510 2 3 1 1 4 1 2 0 0 4 1 82 13 77 8 2 0 0 100 1 0 0 0 0 0 100 15002 10 Upper and Lower 0 0 0 10 70 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 5 1 0 0 0 8 0 161 2 4191007080 A.K. Warren Water Resource Facility, 24501 S. Figueroa Street, Carson CA 90745 WWTP same agency N 0 0 0 Y Y Root Intrusion Lower Lateral none We have educated the residents about the homeowner's ownership and preventative maintenance of the laterals. After any Sanitary Sewer Spill (SSS) or Private Lateral Sewer Discharge (PLSD), within 24 hours, we inspect the main with our CCTV equipment to determine if the mainline section will go onto our hotspot list. Sections of pipe that make up the hotspot list are then forwarded to the Engineering Section for future CIP projects. 2024 4SSO10408 4 616 31-MAR-25 Municipal(Public) 33369 2 3 1 1 3 1 2 0 0 4 1 82 13 77 8 2 0 0 100 100 0 0 0 0 0 100 15002 10 None 0 0 7 10 70 13 0 0 0 0 100 0 0 0 0 5 1 0 0 0 6 0 0 2 0 0 0 0 0 0 2 0 96 2 4191007080 A.K. Warren Water Resource Facility, 24501 S. Figueroa Street, Carson CA, 90745 WWTP other agency N 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Manhole None Increased frequency of CCTV inspections, more attention is given to areas of root intrusion, expansion of programs related to staff development and industry knowledge. 2025 4SSO10408 4 616 17-MAR-26 Municipal(Public) 33369 2 4 1 1 4 1 0 1 0 0 NA .9 82 13 77 8 2 0 0 100 100 0 0 0 0 0 100 15002 10 None 0 0 7 10 70 13 0 0 0 0 100 0 0 0 0 5 1 0 0 0 6 0 0 2 0 0 0 0 0 0 2 0 94.1 4.8 4191007080 A.K. Warren Water Resource Facility, 24501 S. Figueroa Street, Carson CA, 90745 WWTP other agency N NA 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance NA Upper Lateral NA None. Increased frequency of CCTV inspections, more attention is given to areas of root intrusion, expansion of programs related to staff development and industry knowledge. 2023 4SSO10409 4 616 02-APR-24 Municipal(Public) 24122 5 28 1 1 6 1 1 0 0 0 0 22 0 85 15 0 0 0 100 0 0 0 0 0 0 0 3380 0 None 0 0 0 0 0 0 85 0 0 15 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26 1 Unknown Unknown SSS other agency N 0 0 0 Y Y Other (specify below) Heavy Concreate and Heavy Grease Manhole None Report was forwarded to City of Maywood. 2024 4SSO10409 4 616 20-MAR-25 Municipal(Public) 24122 2 27 3 1 1 2 1 0 0 0 0 22.8 0 85 14 0 0 0 100 0 0 0 0 0 0 0 3380 0 None 0 0 0 0 0 0 85 0 0 15 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.8 0 unknown unknown SSS other agency N 0 0 0 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10409 4 616 17-MAR-26 Municipal(Public) 25138 2 19 2 1 0 0 1 1 0 0 0 0 22.8 0 85 14 0 0 0 100 0 0 0 0 0 0 0 3380 0 None 0 0 0 0 0 0 85 0 0 15 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.8 0 4B190107013 001, , CA SSS other agency N 0 0 0 Y Y Other (specify below) No SSO 2025 Other (specify below) No SSO 2025 No SSO 2025 No SSO 2025 2023 7SSO10523 7 616 29-MAR-24 Municipal(Public) 33901 1 6 1 1 1 5 0 1 0 0 0 5 20 80 0 0 0 0 100 0 0 0 0 0 0 100 680 1 None 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7a330109021 Desert Crest WWTP, 17400 Sunrise Road, Desert Hot Springs, CA 92241 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills occurred during calendar year 2023 Other (specify below) No spills occurred during calendar year 2023 No spills occurred during calendar year 2023, there are no ongoing investigations No spills occurred during calendar year 2023, there are no deficiencies in the system 2024 7SSO10523 7 616 21-MAR-25 Municipal(Public) 999 2 5 1 0 3 5 0 0 0 8 N/A 0 5 20 80 0 0 0 0 100 0 0 0 0 0 0 0 680 1 None 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7A330109021 Desert Crest WWTP, 17400 Sunrise Road, Desert Hot Springs, CA 92241 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spill occurred during calendar year 2024 Other (specify below) No failures occurred during calendar year 2024 N/A N/A 2025 7SSO10523 7 616 02-FEB-26 Municipal(Public) 999 3 4 2 0 4 4 0 0 0 8 N/A 0 5 20 80 0 0 0 0 100 0 0 0 0 0 0 0 682 1 None 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7A330109021 Desert Crest WWTP, 17400 Sunrise Road, Desert Hot Springs, CA 92241 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No Failures occurred during calendar year 2025 Other (specify below) No Failures occurred during calendar year 2025 N/A N/A 2023 4SSO10410 4 616 02-APR-24 Municipal(Public) 38000 2 7 2 2 1 9 2 0 1 0 0 92 36 51 10 3 0 0 100 0 0 0 0 0 0 0 9000 0 None 0 2 5 0 93 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46 18 4DW0587 Monrovia City WS, 600 South Mountain Avenue, Monrovia, CA 91016 SSS other agency N N/A 0 0 0 Y Root Intrusion The City has not had a major spill in the last year. Over the last year, the only issues that have come about have been due to root intrusion. Upper Lateral Failure points have been on private laterals due to root intrusion. None None 2025 4SSO10410 4 616 25-MAR-26 Municipal(Public) 38000 0 5 2 2 0 0 0 0 0 0 City has staff with Water System Distribution Certification 5, Supervisors at D3, and journey level staff at D2. 0 92 20 50 20 10 0 0 100 0 0 0 0 0 0 0 10000 0 None 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23 23 4B190119001 San Jose Creek Water Reclamation Plant WWTP other agency N N N/a n/a n/a 0 0 0 Y Debris-wipes/Non-disposables N/a Gravity Mainline System would have a failure at the mainline if there is a blockage along the main. None City CCTV and cleans the system on a grid maintenance schedule and as-needed based on historical hot spot data. 2023 7SSO10525 7 616 01-APR-24 Municipal(Public) 44311 7 7 2 1 3 1 0 0 0 0 4 125 20 40 35 5 0 0 100 50 0 0 50 0 0 100 10000 75 Lower only 150 5 5 10 20 25 20 20 0 0 100 11 11 5 2 0 0 0 0 0 11 4 4 4 2 0 0 0 0 0 4 1 30 4 7A 13 0103 011 El Centro Wastewater Treatment Plant WWTP same agency N 0 0 0 Y Y Other (specify below) No spills to report. Other (specify below) No fail points to report. No Updated SSMP, and staff working on findings from recent audit. 2024 7SSO10525 7 616 31-MAR-25 Municipal(Public) 44311 7 7 2 1 5 1 0 0 0 0 4 125 20 40 35 5 0 0 100 50 0 0 50 0 0 100 10000 0 Lower only 0 5 5 10 20 25 20 20 0 0 100 11 11 5 2 0 0 0 0 0 11 4 4 4 2 0 0 0 0 0 4 2 50 5 7A130103011 El Centro Wastewater Treatment Plant SSS same agency N 0 0 0 Y Y Other (specify below) No spills to report Other (specify below) No fail points to report none working on sewer audit for deficiencies 2025 7SSO10525 7 616 30-MAR-26 Municipal(Public) 44230 7 7 2 1 6 1 0 0 0 0 4.4 123 38 692 193 76 0 0 100 40 10 0 50 0 0 100 10000 0 Lower only 0 0 10 25 25 20 20 0 0 0 100 7 7 5 2 0 0 0 0 0 21 8 8 4 0 0 0 0 0 0 20 2 50 5 7A130103011 EL Centro Wastewater Treatment Plant SSS same agency N 0 0 0 N Y Other (specify below) no spill to report Other (specify below) no fail to report none none 2023 4SSO10411 4 616 27-MAR-26 Municipal(Public) 63933 3 10 1 1 0 0 0 0 0 0 None .7 89.4 0 96 4 0 0 0 100 0 0 0 0 0 0 0 12557 0 None 0 0 0 0 59 39 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4B190107013 AK Warren Water Resources Facility SSS other agency N N/A 0 0 0 Y Y Debris-General Other (specify below) None None LA County Public Works is called if there are issues in Sewer System. 2024 4SSO10411 4 616 27-MAR-26 Municipal(Public) 63933 3 10 1 1 0 0 0 0 0 0 None .7 89.4 0 96 4 0 0 0 100 0 0 0 0 0 0 0 12557 0 None 0 0 0 0 59 39 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4B190107013 AK Warren Water Resources Facility SSS other agency N 0 0 0 Y Y Other (specify below) None Gravity Mainline Main failure at Spruce Street on 8/30/2024. LAPW subcontracted Dody brothers for repairs. None LA County Public Works is called if any issues arise. 2025 4SSO10411 4 616 27-MAR-26 Municipal(Public) 63933 3 10 1 1 0 0 0 0 0 0 N/A .7 89.4 0 96 4 0 0 0 100 0 0 0 0 0 0 0 12557 0 None 0 0 0 0 59 39 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 .5 4B190107013 AK Warren Water Resources Facility SSS other agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None LA County Public Works is called if there are issues. 2025 7SSO20070 7 616 01-APR-26 Municipal(Public) 42 0 4 1 0 0 1 0 0 0 0 State Water Resources Control Board: (1) WWTPO 5 (3) WWTPO 2 (1) WWTPO 1 CWEA: (1) Collection System Maintenance 2 (1) Environmental Compliance Inspector 1 (1) Laboratory Analyst 1 .6 7.2 5 41 34 12 0 0 92 0 0 8 0 0 0 8 42 42 Lower only .3 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 2 0 0 0 7A130127001 Gateway of The Americas, Zinetta Road, Calexico, CA 92231 WWTP same agency N 0 1 0 N N Inappropriate Discharge to Collection System Pump Station - Mechanical An Investigation of a Sewer Spill that occurred on FEB 2025 near north of the intersection of Pan American Street and Alamo Road, was completed on MARCH 2025. A Notice of Applicability (NOA) dated 04/23/25 from the State Water Board provided the WDID # 7SSO20070. An SSO for the FEB 2025 Sewer Spill is pending submittal. A Preliminary Engineering Report (PER) was prepared by The Holt Group on JUN/JUL 2025. Said PER identifies some improvements to the Sewer System, one of which is the cleaning, video and potential lining of the Sewer Collection System (SCS) to prevent potential ground water infiltration into the SCS. 2025 4SSO20072 4 616 01-APR-26 Municipal(Public) 106000 4 4 1 1 0 0 0 0 0 0 N/A 0 148 0 93 0 0 0 7 100 0 0 0 0 0 0 0 23187 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 37 N/A N/A SSS other agency N N/A N/A N/A 0 0 16 N N Fats, Oil and Grease (FOG) N/A Other (specify below) N/A Yes Capital Improvement Projects 2025 4SSO20072 4 616 29-JUL-25 Municipal(Public) 102773 3 3 1 2 0 0 0 0 0 0 NA 0 161.7 0 94 6 0 0 0 0 0 0 0 0 0 0 0 23115 23000 None 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 143.9 27.4 4SSO11387 LACSD - District 2, 1955 Workman Mill Road, Whittier, CA 90601 SSS other agency 4SSO11397 LACSD - District 18, 1955 Workman Mill Road, Whittier, CA 90601 SSS other agency N NA 0 0 26 N N Fats, Oil and Grease (FOG) NA Pump Station - Controls NA NA City staff conduct visual inspections of hotspot locations known to have recurring issues. The City contacts the Contractor to perform jetting of the affected sewer main. To address long-term issues, the City works with a consultant to model the sewer system and identify areas requiring upgrades or rehabilitation. Currently, the 2025 Sewer Master Plan is in progress. 2023 7SSO10527 7 616 26-MAR-24 Municipal(Public) 6979 2 2 2 1 0 0 0 0 0 0 Operators possess Waste water Certificates 1 27 0 90 0 10 0 0 100 0 1 0 99 0 0 100 1679 0 None 0 4 40 3 3 50 0 0 0 0 100 1 1 0 0 0 0 0 0 0 0 4 4 4 4 0 0 0 0 0 4 0 1 1 7A130104011 Heber Public Utility District WasteWater Treatment Plant WWTP same agency N N/A 0 0 0 N Y Other (specify below) No Major spills Manhole N/A N/A 2024 7SSO10527 7 616 17-MAR-26 Municipal(Public) 6979 2 1 2 1 0 0 0 0 0 0 Employees hold wastewater treatment certificates. 1 26 90 0 0 10 0 0 100 99 1 0 0 0 0 100 1675 0 None 0 4 40 3 3 50 0 0 0 0 100 1 1 2 2 0 0 0 0 0 2 2 2 2 2 0 0 0 0 0 2 0 1 1 7A130104011 Heber PUD Wastewater Treatment Plant, 1184 Rockwood Ave; Heber, Ca 92249 WWTP same agency N N/A 0 0 0 N Y Other (specify below) No Major Spills Other (specify below) No infrastructure failures N/A N/A 2025 7SSO10527 7 616 17-MAR-26 Municipal(Public) 6979 2 1 2 1 0 0 0 0 0 0 1 26 90 0 0 10 0 0 100 99 1 0 0 0 0 100 1675 0 None 0 4 40 3 3 50 0 0 0 0 100 1 1 2 2 0 0 0 0 0 2 2 2 2 2 0 0 0 0 0 2 0 1 0 7A130104011 Heber PUD Wastewater Treatment Plant, 1184 Rockwood Ave; Heber, Ca 92249 WWTP same agency N N/A 0 0 0 N Y Other (specify below) No major spills Other (specify below) No major pump failures N/A N/A 2023 4SSO10414 4 616 02-APR-24 Municipal(Public) 14085 2 18 3 1 0 1 0 0 0 0 1 77 0 94 6 0 0 0 100 100 0 0 0 0 0 0 5213 0 None 0 0 3 0 93 4 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency 4SSO11404 South Bay Cities Sanitation District CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Rancho Palos Verdes City CS 4SSO10414 N Rolling Hills Estates City CS 4SSO10423 0 0 0 Y Y Other (specify below) Heavy Root Gravity Mainline None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10414 4 616 23-DEC-25 Municipal(Public) 12646 1 15 2 1 0 0 0 0 0 0 1.8 76.5 1 92 7 0 0 0 100 100 0 0 0 0 0 100 5213 0 None 0 0 3 0 93 4 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 38.6 0 4B190107013 A. K. Warren Water Resource Facility LA County Sanitation District WWTP other agency Y N Rancho Palos Verdes City CS 4SSO10414 N Rolling Hills Estates City CS 4SSO10423 0 0 0 Y Y Root Intrusion Root Intrusion, Debris - General Gravity Mainline The sewer is currently on an active 60-day periodic cleaning schedule. We will inspect sewer using CCTV to determine if adjustments or further actions are needed. The sewer is currently on an active 60-day periodic cleaning schedule. We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 2025 4SSO10414 4 616 26-MAR-26 Municipal(Public) 12668 3 32 3 1 0 2 1 1 1 0 1.8 76.6 1 92 7 0 0 0 100 100 0 0 0 0 0 100 5213 0 None 0 0 3 0 93 4 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 22.7 .8 4B190107013 Joint Water Pollution Control Plant, 24501 S Figueroa St, Carson, CA 90745 WWTP other agency Y N Rancho Palos Verdes City CS 4SSO10414 N Rolling Hills Estates City CS 4SSO10423 0 0 0 Y Y Root Intrusion pipe structural problem/failure - controls Gravity Mainline The line is already on a preventive maintenance program and will also be televised to determine if further actions are needed. The line is already on a preventive maintenance program and will also be televised to determine if further actions are needed. 2023 4SSO10415 4 616 02-APR-24 Municipal(Public) 13581 6 26 3 1 1 1 1 0 0 0 None 1 62 0 91 9 0 0 0 100 100 0 0 0 0 0 100 8346 0 None 0 0 0 1 12 79 8 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 33 1 4sso11386 County Sanitation District No. 1 CS, , Whittier, CA SSS other agency 4sso11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4sso11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Bellflower City CS 4sso10369 NA 0 0 6 Y Y Other (specify below) None Other (specify below) None None None 2024 4SSO10415 4 616 24-DEC-25 Municipal(Public) 52500 2 27 3 1 1 2 1 0 0 0 None 0 61.7 0 91 9 0 0 0 100 100 0 0 0 0 0 100 8346 0 None 0 0 0 1 12 79 8 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 27.7 0 4B190107015 Los Coyote WRP LA County Sanitation District WWTP other agency Y N Bellflower City CS 4sso10369 N/A 0 0 6 Y Y Other (specify below) None Other (specify below) None None None 2025 4SSO10415 4 616 30-MAR-26 Municipal(Public) 51169 3 26 3 1 0 2 2 1 0 0 0 0 61.7 0 91 9 0 0 0 100 100 0 0 0 0 0 100 8346 0 None 0 0 0 1 12 79 8 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 23.9 0 4B190107015 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave., Cerritos, CA 90703 SSS other agency 4B190107013 Joint Water Pollution Control Plant (A.K. Warrn Water Resource Facility), 24501 S Figueron St, Carson, CA 90745 SSS other agency Y N BELLFLOWER CITY CS 4SSO10369 0 0 0 6 Other (specify below) NO SSO 2025 Other (specify below) NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 4SSO10416 4 616 29-MAR-24 Municipal(Public) 135732 1 10 1 1 2 0 0 0 0 0 n/a 41 328 1 85 13 1 0 0 100 0 0 0 0 0 0 100 30754 70 None 1 0 1 0 0 39 60 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 102 41 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4SSO10428 San Marino City CS, 2200 Huntington Drive, San Marino, CA 91108 SSS other agency 4SSO10450 110 Freeway at 343 South Avenue 63, 110 Pasadena Freeway , Los Angeles, CA 90042 SSS other agency 4SSO11395 County Sanitation District No. 16 CS, , CA SSS other agency Y N County Sanitation District No. 17 CS, , CA 4SSO11396 we have less than 5 systems 1 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance root intrusion Other (specify below) damage to main sewer lines and compromised sewer manholes staff works on preventative measure by conducting CCTV and in-person observation. performing annual sewer relining and point repair work; CCTV inspections to inspect for damaged locations; emergency dispatch units for any sewage spill clean-ups. 2024 4SSO10416 4 616 31-DEC-25 Municipal(Public) 133560 2 9 1 1 2 0 0 0 0 0 N/A 1.1 328 1 85 13 1 0 0 100 0 0 0 0 0 0 0 30754 70 None 1 0 0 3 6 22 32 35 2 0 100 0 0 0 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 279 5.5 4B190107015 Los Coyotes WRP, 16515 Piuma Avenue, Cerritos, CA 90703 SSS other agency 4B190107020 San Jose Creek WRP, 1965 & 1971 S. Workman Mill Road, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resources Facility, 24501 S. Figueroa Street, Carson, CA 90745 SSS other agency 4B190107016 Whittier Narrows WRP, 301 Rosemead Boulevard, El Monte, CA 91733 SSS other agency Y N County Sanitation District No. 17 CS 4SSO11396 N/A; less than 5 systems 0 0 10 Y Y Other (specify below) No category 1 spill occurred in 2024. However, one category 4 spill was reported due to debris (general and rags) identified at the event. Other (specify below) Deteriorated/damaged sewer main lines and compromised sewer manholes due to age of the system. The city performs sewer pipe CCTV investigation and manhole investigation to inspect damaged locations, in addition to establishing regular maintenance to the sewer pump stations. The city performed a city-wide sewer relining and point repair, manhole rehabilitation, increased sewer pipe CCTV investigation and manhole investigation to inspect damaged locations as part of the annual CIP program. The city also had emergency dispatch units for any sewage spill clean-ups. 2025 4SSO10416 4 616 20-MAR-26 Municipal(Public) 136650 2 9 1 1 2 0 0 0 0 0 N/A 1.1 328 1 85 13 1 0 0 100 0 0 0 0 0 0 0 30754 70 None 0 0 0 3 6 22 32 35 2 0 100 0 0 0 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 284.9 11.4 4SSO11388 County Sanitation District Joint Outfall CS, 1955 Workman Mill Rd., Whittier CA 90601 SSS other agency 4SSO10428 San Marino City CS, 2200 Huntington Drive, San Marino, CA 91108 SSS other agency 4SSO10450 Hyperion Treatment Plant, 12000 Vista Del Mar, Playa Del Rey, CA 90293 SSS other agency 4SSO11395 County Sanitation District No. 16 CS SSS other agency Y N County Sanitation District No. 17 CS 4SSO11396 N/A; less than 5 systems 0 0 10 Y Y Other (specify below) No Category 1 (major) spills were recorded in 2025. However, two Category 4 spills were reported to be attributed to root intrusion, debris (rags), and the presence of fats, oils, and grease (FOG). Other (specify below) Sewer system infrastructure failures are primarily caused by deteriorated or damaged sewer mains and compromised sewer manholes, often resulting from the age of the system. There are no ongoing spill investigations. The City continues to maintain its wastewater collection system through routine pipe cleaning and televising, as well as manhole condition assessments, which serve as proactive measures for evaluating system condition. Additionally, regular maintenance of the sewer lift stations is performed by contracted vendors to ensure proper functionality. The City implements a citywide sewer relining and point repair program, an annual initiative that repairs and rehabilitates damaged sewer mains identified through prior inspections. Additionally, the City maintains emergency response crews that are dispatched to address urgent sewer spill cleanups. 2023 7SSO10530 7 616 25-MAR-24 Municipal(Public) 256 1 1 1 1 1 0 0 0 0 0 Certified through the State Water Resources Control Board 0 3 75 20 5 0 0 0 0 0 0 0 0 0 0 0 230 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 7A330118022 Lake Tamarisk WTP, 26251 Parkview Dr , Desert Center, CA 92239 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills have occurred. Other (specify below) No failure points have been identified. No ongoing spills. No system deficiencies identified. 2024 7SSO10530 7 616 15-APR-25 Municipal(Public) 400 1 1 1 1 1 0 0 0 0 0 State of California Resources Control Board 0 3.1 75 20 5 0 0 0 100 0 0 0 0 0 0 0 190 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 0 7A330118022 Lake Tamarisk WTP, 26251 Parkview Dr , Desert Center, CA 92239 WWTP same agency N 0 0 0 N Y Other (specify below) No Spills have occurred. Other (specify below) No failure points identified. No spills have occurred. No spills have occurred. 2025 7SSO10530 7 616 26-MAR-26 Municipal(Public) 400 1 1 1 1 1 0 0 0 0 0 California State Water Boards. 0 3 0 100 0 0 0 0 100 0 0 0 0 0 0 0 190 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7A330118022 Lake Tamarisk WTP, 26251 Parkview Dr , Desert Center, CA 92239 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills have occurred. Other (specify below) No failure points identified. No spills have occurred. No spills have occurred. 2023 4SSO10417 4 616 02-APR-24 Municipal(Public) 66967 6 26 3 1 1 1 1 0 0 0 N/A 0 110 0 91 9 0 0 0 100 0 0 0 0 0 8 0 14468 0 None 0 1 0 3 14 82 0 0 0 0 100 0 0 1 0 1 0 0 0 0 2 0 0 0 0 1 0 0 0 0 1 0 1 0 N/A LA County SD JWPCP WWTP other agency N/A LA County SD Los Coyotes WWTP other agency N/A LA County SD Willow WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 6 Y Y Debris-General Gravity Mainline None Cleaning 2024 4SSO10417 4 616 18-MAR-25 Municipal(Public) 59198 2 27 3 1 1 1 2 1 0 0 N/A 0 109.5 0 91 9 0 0 0 100 0 0 0 0 0 8 0 14468 0 None 0 1 0 3 14 82 0 0 0 0 100 0 0 1 0 1 0 0 0 0 2 0 0 0 0 1 0 0 0 0 1 0 1 0 N/A LA County SD JWPCP WWTP other agency N/A LA County SD Los Coyotes WWTP other agency N/A LA County SD Willow WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 6 Y Y Fats, Oil and Grease (FOG) New Trap was installed on Manhole no.257 west of manhole 256 that caused sewage back up and overflow Manhole N/A No recommendation is needed Cleaning 2025 4SSO10417 4 616 02-MAR-26 Municipal(Public) 59198 3 26 3 1 2 2 1 0 0 0 0 0 109.5 0 93 7 0 0 0 100 100 0 0 0 0 0 100 14468 0 None 0 1 0 3 14 82 0 0 0 0 100 0 0 1 0 1 0 0 0 0 2 0 0 0 0 1 0 0 0 0 1 0 28.1 0 4B190107020 San Jose Creek Water Reclamation Plant 1965, 1971 S Workman mill Rd, Whittier CA 90601 WWTP other agency 4B190107015 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave, Cerritos, CA 90703 WWTP other agency Bridges on the River Restaurant, 2125 Garden Highway, Sacramento, CA 95833 N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 6 Y Other (specify below) None Other (specify below) None none none 2023 7SSO20021 7 616 25-MAR-24 Municipal(Public) 4961 1 1 0 0 0 0 0 0 0 2 Treatment Plant is contracted out 4 19 37 52 11 0 0 0 100 20 40 50 0 0 0 100 1866 0 None 0 0 0 20 20 60 0 0 0 0 100 1 1 0 0 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 2 0 6 2 7SSO20021 Needles Sbr CS, 817 Third Street, Needles, CA 92363 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) Pump Station - Controls No Ongoing Spill Investigations at this time Repaired Floats 2023 7SSO20021 7 616 08-JAN-24 Municipal(Public) 4961 1 1 0 0 0 0 0 0 0 2 Treatment Plant is contracted out 4 19 37 52 11 0 0 0 100 20 40 50 0 0 0 100 1866 0 None 0 0 0 20 20 60 0 0 0 0 100 1 1 0 0 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 1 0 6 2 7SSO20021 Needles Sbr CS, 817 Third Street, Needles, CA 92363 WWTP same agency N N/A 0 0 0 Y Y Root Intrusion Gravity Mainline No ongoing spill investigations at this time Repaired/ replaced gravity lines right away 2024 7SSO20021 7 616 30-DEC-25 Municipal(Public) 4961 1 1 0 0 0 0 0 0 0 2 Treatment Plant is contracted out 4 19 37 52 11 0 0 0 100 20 40 50 0 0 0 100 1866 0 None 0 0 0 20 20 60 0 0 0 0 100 1 1 0 0 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 2 0 6 2 7B360110014 Needles WWTP, 516 Broadway , Needles, CA 92363 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) NA Pump Station - Controls NA No ongoing Spill Investigations at this time None 2025 7SSO20021 7 616 01-APR-26 Municipal(Public) 4961 0 1 1 0 1 1 0 0 0 2 The treatment plant operations are contracted to a third-party EUSI, which holds the required certifications. 4 19 37 52 1 0 0 0 100 20 40 50 0 0 0 100 1866 0 None 0 0 0 20 20 60 0 0 0 0 100 1 1 0 0 1 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 0 6 2 7SSO20021 Needles WWTP, 516 Broadway , Needles, CA 92363 WWTP same agency N N N N/A 0 N N/A 0 N N/A 0 N N/A 0 N.A 0 0 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) Pump Station - Controls No ongoing spill investigations during 2025 Pump stations repairs including pump replacements and float adjustments. 2023 4SSO10418 4 616 05-NOV-25 Municipal(Public) 143801 2 5 2 0 2 2 1 2 0 3 NA 1 317 1 87 10 1 1 0 100 0 34 33 33 0 0 100 33913 56 None 0 7 0 16 24 35 14 2 0 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 4 0 208 31 4B190107019 295 Humane Way Pomona, CA 91766, Pomona, CA 91766 WWTP other agency 4SSO11400 County Sanitation District No. 21 CS, Whittier, CA SSS other agency Y N City of Claremont 4SSO10376 N City of La Verne 4SSO10401 N Cal Poly Pomona 4SSO10351 N NA NA N NA NA NA 0 0 3 Y Y Root Intrusion NA Gravity Mainline NA No ongoing spill investigations. An RFP was submitted and Purchase orders have been issued to hire as needed Hydro Jetting and CCTV Contractor (FAZE1). An RFP was submitted and a Purchase order was issued to install (20) Smartcover level sensors to monitor Inflow and infiltration. An RFP was submitted and a purchase order has been issued to hire a Data Analytics company (V & A Consulting Engineers) to help us drill down and clean our sewer mains more efficiently and provide better predictive maintenance. 2025 4SSO10418 4 616 17-MAR-26 Municipal(Public) 143801 2 5 2 0 3 2 3 1 0 3 N/A 1.5 317 1 87 10 1 1 0 100 0 34 33 33 0 0 100 33046 56 None 0 7 0 16 24 35 14 2 0 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 4 0 226 36 4B190107019 001, , Pomona, CA 91766 WWTP other agency 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency Y N City of Claremont 4SSO10376 N City of La Verne 4SSO10401 N Cal Poly Pomona 4SSO10351 N NA NA N NA NA NA 0 0 3 Y Y Vandalism (specify below) We had one sewer spill caused by someone dumping rocks and debris into our sewer manhole. Another spill occurred when a contractor poured concrete into a sewer cleanout located in an easement in a backyard, causing a backup and a spill. Gravity Mainline NA No ongoing spill investigations. Continuously working to update wastewater GIS. PO issued for Dukes Root Control to assist with root control and section sewer CIPP lining. PO issued for RootX to assist with Root Control. Increased overtime to complete video inspections and clean sewer mains. 2024 7SSO20054 7 616 12-FEB-25 Municipal(Public) 756 0 1 1 1 0 3 0 0 0 3 N/A 0 7.1 0 87 13 0 0 0 100 0 0 0 0 0 0 0 582 582 Lower only 1.5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7A130109011 Niland CSD-WWTP: 125 W. Alcott Rd, Niland, CA 92257 WWTP same agency N N/A 4 0 1 N N Debris-wipes/Non-disposables Including Debris/Rags Gravity Mainline Including Manholes Non-Ongoing Sewer Spill Investigation are taking Place, yet response(s) to a Water Boards Notice of Violation dated 11-26-24 are being prepared, such as: Spill Emergency Response Plan (SERP), Preventive Maintenance Plan (PMP), Sewer System Management Plan (SSMP), Capital Improvements Projects (CIP) List, other Actions to address various system deficiencies will be listed and prioritized on the Preventive Maintenance Plan (PMP), the Sewer System Management Plan (SSMP), and the Capital Improvements Projects (CIP) List. These Documents are to be approved and adopted by no later than June 2025. 2025 7SSO20054 7 616 01-APR-26 Municipal(Public) 756 1 4 1 1 1 1 1 1 1 1 State Water Resources Control Board: (1) WWTPO V (1) WWTPO II (3) WWTPO I (1) WWTP-OIT I CWEA: (1) Collection System Maintenance 2 (1) Environmental Compliance Inspector 1 (1) Laboratory Analyst 1 0 7.1 0 87 13 0 0 0 100 0 0 0 0 0 0 0 582 582 Lower only 1.5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7A130109011 Niland CSM-WWTP: 125 W. Alcott rd. Niland, CA 92257 WWTP same agency N N/A 4 0 1 N N Debris-wipes/Non-disposables Including Debris/Rags Gravity Mainline Including Manholes Currently, there are none ongoing spill investigations Cleaning & Polyethylene Lining of existing 10 Sewer Main Collector Line (+- 5000 LF) was recently completed beginning 2026 2023 4SSO10420 4 616 02-APR-24 Municipal(Public) 42893 2 13 2 1 0 1 1 0 0 0 2 140 0 94 6 0 0 0 100 100 0 0 0 0 0 100 13840 0 None 0 0 4 8 80 8 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 4 1 0 0 0 0 0 5 0 38 1 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency 4SSO11404 South Bay Cities Sanitation District CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Lomita City CS 4SSO10404 N Rolling Hills Estates City CS 4SSO10423 0 0 1 Y Y Debris-General Gravity Mainline None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10420 4 616 26-MAR-25 Municipal(Public) 40000 0 0 0 0 0 0 0 0 0 0 N/A 2 140 0 94 6 0 0 0 100 100 0 0 0 0 0 100 13840 0 None 0 0 4 8 80 8 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 4 1 0 0 0 0 0 5 .5 0 0 4SSO11391 County Sanitation District No. 5 CS, Whittier CA SSS other agency 4SSO11404 SSS other agency 4SSO11388 SSS other agency Y N Lomita City CS 4SSO10404 N Rolling Hills Estates CS 4SSO10423 N/A 0 0 1 N Y Natural Disaster (specify below) 2024 rain storm washed away the foundation of the pipe causing the pipe to break. Upper Lateral N/A N/A When resident's laterals cause an issue with the mainline we issue notice of violations to ensure the resident swiftly addresses these concerns. 2025 4SSO10420 4 616 31-MAR-26 Municipal(Public) 40000 0 0 0 0 0 0 0 0 0 0 N/A 2 130 0 94 6 0 0 0 100 100 0 0 0 0 0 100 13840 0 None 0 0 4 8 80 8 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 4 1 0 0 0 0 0 5 .5 .5 .5 4SSO11391 County Sanitation District No. 5 CS, Whittier CA SSS other agency 4SSO11404 SSS other agency 4SSO11388 SSS other agency Y N Lomita City CS 4SSO10404 N Rolling Hills Estates CS 4SSO10423 N/A 0 0 1 N Y Other (specify below) Cause unknown. Sinkhole developed in roadway and was quickly plated. Sinkhole increased in size, causing plate to fall in. Unknown if damaged sewer or storm drain caused the sinkhole to increase in size. Other (specify below) County of Los Angeles (County) maintains our sewer lines, as we become aware of an issue or maintenance need, we request the County to address. N/A Continue to work with County for any necessary repairs or maintenance. 2023 7SSO10535 7 616 28-MAR-24 Municipal(Public) 264612 13 12 1 6 9 7 2 7 0 4 NASSCO PACP - 21 total 71 1097 1 73 19 6 1 0 100 4 4 91 1 0 0 100 105180 3 None 0 1 37 60 2 0 0 0 0 0 100 2 7 2 6 0 0 0 0 0 17 0 5 1 4 0 0 0 0 0 10 0 97 99 R7-2017-0006 WRP-4, 63-002 Filmore Street, Thermal, CA 92274 WWTP same agency R7-2013-0026 WRP-7, 80-609 Avenue 38, Indio, CA, 92203 WWTP same agency R7-2018-0001 WRP-10, 43-000 Cook Street, Palm Desert, CA 92211 WWTP same agency R7-2013-0024 WRP-1, 2201 Honey Wagon Road, Bombay Beach, CA 92257 WWTP same agency N R7-2013-0025 WRP-2, 72-900 Highway 111, North Shore, CA 92254 WWTP Same Agency 8 16 3 Y Y Natural Disaster (specify below) SSS of largest impact was a result of Tropical Storm Hilary Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A N/A -Proactive repalcement of AV connection points within impacted areas. -Researching and procurment of material (apputances) with higher durability. -Increased inspections of critical areas, visual and technology. -Improved Preventative Maintenance program and Asset Management through the use of a new CMMS system. 2024 7SSO10535 7 616 01-APR-25 Municipal(Public) 24612 24 1 4 2 14 6 2 8 0 4 See attachment 75.7 1152 1 76 19 3 1 0 100 7 7 86 0 0 0 100 105180 3 None 0 2 28 46 17 0 0 0 0 7 100 2 10 6 3 0 0 0 0 0 21 0 2 1 2 0 0 0 0 0 5 0 254.9 104.5 7A330105091 WRP #4, 63-002 Filmore Thermal CA 92274 WWTP same agency 7A330105012 Palm Desert WRP #10, 43-000 East Cook Street, Palm Desert, CA 92260 WWTP same agency 7A330105071 WRP #7, 80609 Ave 38 and Madison , Indio, CA 92203-9778 WWTP same agency N 1 7 3 Y Y Other (specify below) Contractor Error - See attached Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A None See Attached 2025 7SSO10535 7 616 27-MAR-26 Municipal(Public) 250854 7 34 9 8 21 14 3 7 0 6 13 - Advanced Education ( Degree, supervisory certification) 20 - NASSCO (National Association of Sewer Service Companies) - PACP 51 - HAZWOPER - Hazardous Waste Operations and Emergency Response 4 - American Water Works Association (AWWA) - Treatment 6 - American Water Works Association (AWWA) - Distribution 1 - National Commission … Certification of Crane Operators (NCCCO) 4 - ASSE 5110 - Backflow Prevention Assembly Tester 4 - ASSE 5120 - Cross-Connection Control Surveyor 33 - WTPO OIT-GRADE 5 76.7 1200.5 1 74 19 5 1 0 100 8 7 85 0 0 0 100 107880 3 None 0 2 28 45 16 0 0 0 0 9 100 2 10 6 3 0 0 0 0 0 21 0 2 1 2 0 0 0 0 0 5 0 266 106.1 R7-2023-0013 WRP-4; 63-002 Filmore Street, Thermal, CA 92274 WWTP same agency R7-2022-0009 WRP-7; 80-609 Avenue 38, Indio, CA, 92203 WWTP same agency R7-2024-0016 WRP-10; 43-000 Cook Street, Palm Desert, CA 92211 WWTP same agency R7-2013-0025 WRP-2;72-900 Highway 111, North Shore, CA 92254 WWTP same agency N R7-2013-0025, WRP-1, 2201 Honey Wagon Road, Bombay Beach, CA 92257, WWTP same agency 10 8 3 Y Y Fats, Oil and Grease (FOG) OES No. 25-3104; Cat -2 Spill; Fred Waring Drive, 1200' East of California Drive, Palm Desert. Total Spill: 3875 gal; SEE ATTACHMENT Air Relief Valve (ARV)/ Blow-Off Valve (BOV) SEE ATTACHMENT NONE SEE ATTACHMENT 2023 4SSO10421 4 616 27-MAR-24 Municipal(Public) 68908 1 5 3 2 1 2 0 0 0 0 N/A 2 112 1 89 10 0 0 0 100 0 100 0 0 0 0 100 14093 277 None 2 1 1 0 9 75 9 0 0 5 100 2 1 7 2 1 0 0 0 0 13 0 0 1 0 0 0 0 0 0 1 2 100 27 4B190107013 A K Warren Water Resources Facility WWTP same agency N N City of Lawndale WDIDUnknown N City of Torrance WDIDUnknown N/A 0 0 4 Y Y Root Intrusion N/A Gravity Mainline N/A None The City has an ongoing root treatment contract with Dukes Root Control and performs frequent treatment in high root areas. In addition, the City's target is to clean half the sanitary sewer conveyance system's gravity main lines every year. 2024 4SSO10421 4 616 24-MAR-25 Municipal(Public) 68908 1 5 3 2 1 2 0 0 0 0 N/A 2 112 1 89 10 0 0 0 100 0 100 0 0 0 0 100 14093 277 None 2 0 0 0 100 0 0 0 0 0 100 2 1 7 2 0 0 0 0 0 12 0 0 1 0 0 0 0 0 0 1 2 80 30 4B190107013 001, , CA WWTP same agency Y N City of Lawndale WDIDUnknown N City of Torrance WDIDUnknown N/A 0 0 4 Y Y Root Intrusion N/A Gravity Mainline N/A none The City has an ongoing root treatment program and performs frequent treatment in high-root areas. The City's target is to clean half the sanitary sewer system's gravity main lines every year. 2025 4SSO10421 4 616 16-MAR-26 Municipal(Public) 68075 1 5 3 2 1 2 0 0 0 0 N/A 2 112 1 89 10 0 0 0 100 0 100 0 0 0 0 100 14097 277 None 2 0 0 0 100 0 0 0 0 0 100 2 1 7 2 0 0 0 0 0 12 0 0 1 0 0 0 0 0 0 1 2 80 25 4B190107013 001, , CA WWTP same agency Y N City of Lawndale WDIDUnknown N City of Torrance WDIDUnknown N/A 0 0 4 Y Y Root Intrusion N/A Gravity Mainline N/A N/A The City continues to implement a root treatment program and performs frequent treatment in high-root growth pipe segments. The City's target is to clean half the conveyance system (gravity main lines) every year. 2023 7SSO10536 7 616 04-NOV-25 Municipal(Public) 43700 0 10 2 4 4 1 2 0 0 2 NA 3 262 3 71 18 6 2 0 100 0 0 0 0 0 0 0 28470 0 None 0 14 0 14 30 40 2 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 3 0 0 0 0 0 3 0 166.8 40.5 7SSO10536 City of Palm Springs WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 2 4 N Y Debris-General NA Gravity Mainline NA NA Comprehensive Inspections Prioritized Repairs Pipe Rehabilitation Replacement of Aging Infrastructure Enhanced Maintenance Protocols Investment in Technology 2024 7SSO10536 7 616 04-NOV-25 Municipal(Public) 43700 0 10 2 4 4 2 2 0 0 2 NA 3 262 3 71 18 6 2 0 100 0 0 0 0 0 0 0 28495 0 None 0 14 0 14 30 40 2 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 3 0 0 0 0 0 3 0 144 46 7SSO10536 City of Palm Springs WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 2 4 N Y Debris-General NA Gravity Mainline NA NA Comprehensive Inspection Prioritized Repairs Pipe Rehabilitation Replacement of Aging Infrastructure Enhanced Maintenance Protocols Investment in Technology 2025 7SSO10536 7 616 19-MAR-26 Municipal(Public) 43700 0 10 1 3 3 2 1 0 0 0 NA 3 262 3 71 18 6 2 0 100 0 0 0 0 0 0 0 28470 0 None 0 14 0 14 30 40 2 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 3 0 0 0 0 0 3 0 165 47 7SSO10536 City of Palm Springs WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 1 4 Y Y Debris-General NA Gravity Mainline NA NA Comprehensive Inspections Prioritized Repairs Pipe Rehabilitation Replacement of Aging Infrastructure Enhanced Maintenance Protocols Investment in Technology 2024 7SSO20061 7 616 15-APR-25 Municipal(Public) 700 1 1 1 1 1 0 0 0 0 0 California State Water Resources Control Board. 0 4 0 100 0 0 0 0 100 0 0 0 0 0 0 0 190 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 .5 7B330118001 Ripley WTP 03-012, 25871 Neighbours Boulevard, Ripley, CA 92225-8854 WWTP same agency N 0 0 0 N Y Other (specify below) No spills have occurred. Other (specify below) No failure points identified. No spills have occurred. No spills have occurred. 2024 7SSO20061 7 616 06-MAR-25 Municipal(Public) 700 1 1 1 1 1 0 0 0 0 0 Calif0ornia State Water Resources Control Board 0 4 0 100 0 0 0 0 0 0 0 0 0 0 0 0 190 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 1 .5 7B330118001 Ripley WTP 03-012, 25871 Neighbours Boulevard, Ripley, CA 92225-8854 WWTP same agency N 0 0 0 N Y Other (specify below) No spills have occurred. Other (specify below) No failure points identified. No Spills have occurred. No spills have occurred. 2025 7SSO20061 7 616 26-MAR-26 Municipal(Public) 538 1 1 1 1 1 0 0 0 0 0 California State Water Boards 0 4 0 100 0 0 0 0 100 0 0 0 0 0 0 0 190 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 1 1 7B330118001 Ripley WTP 03-012, 25871 Neighbours Boulevard, Ripley, CA 92225-8854 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills have occurred. Other (specify below) No failure points identified. No spills have occurred. No spills have occurred. 2023 7SSO10538 7 616 31-DEC-25 Municipal(Public) 6244 2 3 1 1 3 0 0 0 0 3 NA 5 455 70 25 5 0 0 0 100 5 70 25 0 0 0 100 1921 0 Lower only 5763 0 0 0 100 0 0 0 0 0 100 0 0 0 8 0 0 0 0 0 8 0 0 0 16 0 0 0 0 0 16 0 360 227 7A130117001 SCSD Thomas R. Cannell WWTP, 2196 Palm View Avenue, Salton City, CA 92275 WWTP same agency 7A130110011 Salton City Lansing Avenue WWTF, 2170 Lansing Ave , Salton City, CA WWTP same agency 7A130110031 SCSD Desert Shores WWTP, Cooledge Springs Rd/Hwy 86 , Desert Shores, CA 92274 WWTP same agency N N N NA NA N NA NA N NA NA N NA NA NA 5 0 0 N Y Pipe Structural Problem/Failure - Controls NA Force Main NA NO replace old pumping system along with replacement of broken pipe. replace transite to c900 pipe. 2024 7SSO10538 7 616 31-DEC-25 Municipal(Public) 6292 3 4 1 1 4 0 0 0 0 4 NA 5.7 455 70 25 5 0 0 0 100 5 70 25 0 0 0 100 1967 0 Lower only 5763 0 0 0 100 0 0 0 0 0 100 0 0 0 8 0 0 0 0 0 8 0 0 0 16 0 0 0 0 0 16 0 364 227 7A130117001 SCSD Thomas R. Cannell WWTP, 2196 Palm View Avenue, Salton City, CA 92275 WWTP same agency 7A130110011 Salton City Lansing Avenue WWTF, 2170 Lansing Ave , Salton City, CA WWTP same agency 7A130110031 SCSD Desert Shores WWTP, Cooledge Springs Rd/Hwy 86 , Desert Shores, CA 92274 WWTP same agency N N N NA NA N NA NA N NA NA N NA NA NA 5 0 0 N Y Pipe Structural Problem/Failure - Controls NA Force Main NA NA Replace old pumping system along with replacement of broken pipe. replace transite to C900 pipe 2023 4SSO10423 4 616 12-DEC-25 Municipal(Public) 8157 2 8 3 1 0 1 0 0 0 0 None 1 34 0 97 3 0 0 0 100 100 0 0 0 0 0 100 3033 0 None 0 0 0 12 71 17 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 2 0 1 0 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency 4SSO11404 South Bay Cities Sanitation District CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4B190107013 001, , CA WWTP other agency N 0 0 0 Y Y Natural Disaster (specify below) Landslide caused mainline to collapse. Other (specify below) Landslide caused mainline to collapse. None Recommendations will be made after an assessment of the land movement is made by a Geologist. 2024 4SSO10423 4 616 12-DEC-25 Municipal(Public) 8033 1 15 2 1 0 0 0 0 0 0 None .3 36 0 97 3 0 0 0 100 100 0 0 0 0 0 100 3033 0 None 0 0 0 12 71 17 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 2 0 17.6 0 4SSO11391 County Sanitation District No. 5 CS, Whittier, CA SSS other agency 4SSO11404 South Bay Cities Sanitation District CS, Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, Whittier, CA SSS other agency 4B190107013 001, , CA WWTP other agency N 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Other (specify below) In occupants' home The mainline will be televised to determine if further attention is needed due to storm infiltration The mainline will be televised to determine if further attention is needed due to storm infiltration. The homeowner was given a backwater valve. The mainline will be televised to determine if further attention is needed due to storm infiltration. 2025 4SSO10423 4 616 09-MAR-26 Municipal(Public) 8033 3 32 3 1 0 2 1 1 1 0 0 .3 36 0 97 3 0 0 0 100 100 0 0 0 0 0 100 3033 0 None 0 0 0 12 71 17 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 2 0 9.4 .4 4B190107013 JWPCP, 24501 S Figueroa St., Carson, CA WWTP other agency N 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline NONE Have the contractor release and monitor the plug more frequently, while making repairs to the mainline. 2023 4SSO10424 4 616 02-APR-24 Municipal(Public) 49791 5 28 3 1 6 1 1 0 0 0 n/a 1 79 0 96 4 0 0 0 100 100 0 0 0 0 0 100 10440 0 None 0 1 7 5 87 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 13 1 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10424 4 616 22-DEC-25 Municipal(Public) 50541 2 25 2 1 5 0 1 0 0 0 .1 78.9 0 96 4 0 0 0 100 100 0 0 0 0 0 100 10440 0 None 0 1 7 5 87 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 29.3 .1 4B190107016 Whittier Narrows Water Reclamation Plant, 301 Rosemead Blvd, South El Monte, CA 91733 SSS other agency N 0 0 0 Y Other (specify below) None Other (specify below) None None None 2025 4SSO10424 4 616 24-MAR-26 Municipal(Public) 49582 26 4 3 1 2 2 0 0 0 0 0 0 79.1 0 96 4 0 0 0 100 100 0 0 0 0 0 100 10440 0 None 0 1 7 5 87 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 27.4 0 4B190107016 301 Rosemead Blvd., South El Monte, CA 91733 WWTP other agency N 6 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Mainline will be televised to determine if further actions are needed. Spill corrective action: Enforcement action against Fats, Oil, and Grease (FOG) source, Other (specify below) 10.a. If other, describe: Mainline will be televised to determine if further actions are needed. A grease accumulation report was also submitted to the Environmental Programs Division for further investigation. 10.b. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps: Mainline will be televised to determine if further actions are needed. 10.c. Schedule of major milestones: N/A 2023 4SSO10425 4 616 02-APR-24 Municipal(Public) 34920 5 28 3 1 6 1 1 0 0 0 4 98 0 94 6 0 0 0 100 94 6 0 0 0 0 100 9515 0 None 0 0 1 31 54 14 0 0 0 0 100 0 0 1 3 0 0 0 0 0 4 0 0 3 0 0 0 0 0 0 3 0 33 1 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) grease and rags Gravity Mainline None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10425 4 616 17-NOV-25 Municipal(Public) 34920 2 16 3 1 0 3 0 0 0 0 4.3 101.3 0 94 6 0 0 0 100 94 6 0 0 0 0 100 9515 0 None 0 0 1 31 54 14 0 0 0 0 100 0 0 1 3 0 0 0 0 0 4 0 0 3 0 0 0 0 0 0 3 0 13 .1 4B190107020 001, , CA SSS other agency N 0 0 0 Y Y Other (specify below) Root Intrusion, Debris-wipes/Non Disposables Gravity Mainline Inspected sewer using CCTV (Stong odor and debris) Inspected sewer using CCTV and adjusted existing periodic to a 90-day rodder periodic. 2025 4SSO10425 4 616 19-MAR-26 Municipal(Public) 34920 26 4 3 1 2 2 0 0 0 0 0 .2 101.3 1 94 5 0 0 0 100 94 6 0 0 0 0 100 9515 0 None 0 0 1 31 54 14 0 0 0 0 100 0 0 1 3 0 0 0 0 0 4 0 0 3 0 0 0 0 0 0 3 0 17.4 1.3 4B190107019 Pomona Water Reclamation Plant 295 Humane Way, Pomona, CA 91766 WWTP other agency 4B190107020 San Jose Creek Water Reclamation Plant, 1971 S. Workman Mill Rd, Whittier CA 90601 WWTP other agency N 3 0 0 Y Y Pipe Structural Problem/Failure - Installation Pump Station - Controls no Repaired facilities. 2025 4SSO10426 4 616 25-MAR-26 Municipal(Public) 23258 0 2 0 0 2 1 0 0 0 0 0 0 40 0 70 30 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 40 40 4B190106004 001A, , CA WWTP other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 0 0 0 N Y Other (specify below) no major spills Other (specify below) no major spills or failure points n/a n/a 2023 8SSO10539 8 616 22-JAN-25 Other 35680 1 5 1 1 0 0 0 0 0 0 0 8 44 50 6 0 0 0 100 0 0 0 0 0 0 0 238 238 Upper and Lower 2 1 25 19 38 15 0 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 8SSO10560 Riverside City CS, , Riverside, CA 92504 SSS same agency N 0 0 0 Y Y Other (specify below) No major spill causes this reporting period. Other (specify below) No system infrastructure failure points this reporting period. No ongoing spill investigations this reporting period. No actions taken to address system deficiencies during this reporting period. 2024 8SSO10539 8 616 25-NOV-25 Municipal(Public) 36094 0 4 1 0 0 0 0 0 0 0 0 8 44 50 6 0 0 0 100 0 0 0 0 0 0 0 238 238 Upper and Lower 2 1 25 19 38 15 0 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 .2 8330117003 City of Riverside, 5950 Acorn St., Riverside CA 92504 WWTP other agency N N 0 0 0 Y Y Other (specify below) No major spill causes this reporting period Other (specify below) No infrastructure failure points this reporting period No ongoing spill investigations. No actions taken to address system deficiencies this reporting period. 2025 8SSO10539 8 616 17-MAR-26 Municipal(Public) 36100 0 4 1 0 0 0 0 0 0 0 N/A 0 8 44 50 6 0 0 0 100 0 0 0 0 0 0 0 238 238 Upper and Lower 2 1 25 19 38 15 0 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 8 330117003 001, , Riverside, CA WWTP other agency N N N/A 0 0 0 Y Y Other (specify below) No major spill causes this reporting period Other (specify below) No infrastructure failure points this reporting period No ongoing spill investigations No actions taken this reporting period 2023 7SSO10540 7 616 13-MAR-24 Municipal(Public) 90974 4 11 3 1 9 3 2 3 0 0 N/A 0 260 1 73 21 4 1 0 100 41 59 0 0 0 0 100 28754 0 None 0 1 44 22 20 11 2 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 2 0 0 0 0 0 3 0 125 14 7SSO10540 Valley Sd - Npdes CS, 45-500 Van Buren Street, Indio, CA 92201 WWTP same agency N 6 0 8 Y Y Other (specify below) No major spills for 2023. Other (specify below) No System Infrastructure failure points for 2023. N/A N/A 2024 7SSO10540 7 616 11-SEP-25 Municipal(Public) 95996 3 11 3 1 8 3 2 4 0 0 PACP, MACP, LACP, PIPE REHAB ITCP-CIPP .1 260 1 73 21 4 1 0 100 41 59 0 0 0 0 100 29282 0 None 0 1 44 22 20 11 2 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 2 0 0 0 0 0 3 0 119 19 7A330122021 001, , CA WWTP same agency N N/A 6 0 8 Y Y Other (specify below) No spills 2024 Other (specify below) No system infrastructure failure points for 2024 N/A N/A 2025 7SSO10540 7 616 30-MAR-26 Municipal(Public) 97925 1 13 3 1 7 3 4 3 0 0 PACP,MACP,LACP, PIPE REHAB ITCP_CIPP .1 261 1 73 21 4 1 0 100 41 59 0 0 0 0 100 29450 0 None 0 1 44 22 20 11 2 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 2 0 0 0 0 0 3 0 155 42 7SSO10540 Valley Sanitary District 45500 Van Buren St Indio, CA 92201 WWTP same agency N N/A 6 0 9 Y Y Other (specify below) No Spills 2025 Other (specify below) No system failure points 2025 N/A N/A 2023 4SSO10427 4 616 25-MAR-24 Municipal(Public) 40000 0 3 1 1 0 1 2 0 0 3 N/A 1 72 0 92 8 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 5 30 65 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 61 28 4SSO11370 Unincorporated County Area CSMD North/County Sanitation District CS, , Alhambra, CA WWTP other agency 4SSO11365 1860 - 3810 Hammel St, 3810 Hammel Street, East Los Angeles, CA WWTP other agency N 0 0 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline N/A. Performing hydraulic model analysis for condition and capacity, which will result in strategic rehabilitation planning. 2025 4SSO10427 4 616 24-MAR-26 Municipal(Public) 40000 0 4 0 0 0 0 2 0 0 3 N/A 1 72 0 92 8 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 5 30 65 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 72 20 4SSO11370 Unincorporated County Area CSMD North/County Sanitation District WWTP other agency 4SSO11365 1860-3810 Hammel St, 3810 Hammel Street, East Los Angeles, WWTP other agency N N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A Completed a hydraulic model analysis for condition and capacity, which resulted in strategic rehabilitation planning. 2023 7SSO10541 7 616 30-DEC-25 Municipal(Public) 2078 1 0 1 1 1 1 1 0 0 0 State of California State Water Resources Control Board 0 10 20 65 15 0 0 0 100 0 0 0 0 0 0 0 550 0 None 0 2 3 15 70 10 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 .5 2 1 7A130112012 City of Westmorland Wastewater Treatment Plant 5305 Martin Rd Westmorland CA 92281 SSS same agency N N N/A N/A N/A 0 0 0 N Y Collection System Maintenance Failure (specify below) N/A Pump Station - Mechanical N/A N/A N/A 2024 7SSO10541 7 616 30-DEC-25 Municipal(Public) 2078 1 0 1 1 0 0 0 0 0 0 N/A 0 10 20 65 15 0 0 0 100 0 0 0 0 0 0 0 550 0 None 0 2 3 15 70 10 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 .5 2 1 7A130112012 City of Westmorland Wastewater Treatment Plant 5305 Martin Rd Westmorland CA 92281 SSS same agency N N/A N/A N/A 0 0 0 N Y Collection System Maintenance Failure (specify below) N/A Pump Station - Mechanical N/A N/A N/A 2023 4SSO10428 4 616 16-MAR-25 Municipal(Public) 12500 0 3 1 1 0 0 0 0 0 0 NA 0 47.5 0 98 2 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 60 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 5 23.5 23.5 4SSO11395 County Sanitation District No. 16 CS, , CA SSS other agency N N/A 0 0 3 Y N Other (specify below) No major spills this reporting year. Other (specify below) No system failures this reporting year. NA Awarded construction contract for rehabilitation of all three (3) City-owned lift stations. Administrative NTP has been issued with construction expected to begin in late 2024 due to long lead times for some electrical components. 2024 4SSO10428 4 616 26-DEC-25 Municipal(Public) 12500 0 3 1 1 0 0 0 0 0 0 N/A 0 47.5 0 98 2 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 50 50 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 23.5 23.5 4SSO11395 County Sanitation District No. 16 CS, ,CA SSS other agency N N/A 0 0 0 Y Y Other (specify below) No major spills this reporting year. Other (specify below) No system failures this reporting year. N/A Continued administrative NTP period for the rehabilitation of all three (3) City-owned lift stations. Construction NTP delayed to 2025 due to long lead time for some electrical components. 2025 4SSO10428 4 616 03-APR-26 Municipal(Public) 12500 0 3 1 1 0 0 0 0 0 0 N/A 0 47.5 0 98 2 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 50 50 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 23.5 23.5 4SSO11395 County Sanitation District No. 16 CS, ,CA SSS other agency N N/A 0 0 0 Y Y Other (specify below) No major spills this reporting year. Other (specify below) No system failures this reporting year. N/A Issued construction NTP for the rehabilitation of all three (3) City-owned lift stations. Completed upgrades at two (2) lift stations - Orlando and Monterey. Upgrades at third lift station (Avondale) delayed due to unforseen site conditions (electrical). Construction is anticipated to be complete in 2026. 2023 4SSO10429 4 616 02-APR-24 Municipal(Public) 228673 2 17 2 1 1 2 1 0 0 0 n/a 1 486 0 85 13 2 0 0 100 100 0 0 0 0 0 100 54742 0 None 0 3 14 32 51 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 1 0 4SSO11405 Santa Clarita Valley Sanitation District of Los Angeles County CS, , CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NONE Added sewer to preventive maintenance program;Enforcement action against FOG source 2024 4SSO10429 4 616 14-OCT-25 Municipal(Public) 230428 3 10 1 1 1 0 1 0 0 0 N/A .6 499.6 0 86 13 1 0 0 100 100 0 0 0 0 0 100 54742 0 None 0 3 14 32 51 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 151.4 1.2 4SSO11405 Santa Clarita Valley Sanitation District of Los Angeles County CS, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, Whittier, CA SSS other agency 4A190107021 Santa Clarita Valley SD SSS other agency 4A190107023 Newhall ranch SD SSS other agency N 0 0 3 Y Y Root Intrusion Gravity Mainline The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 2025 4SSO10429 4 616 03-MAR-26 Municipal(Public) 232377 3 19 4 1 1 4 0 0 0 0 0 .6 502.4 0 86 13 1 0 0 100 100 0 0 0 0 0 100 54742 0 None 0 3 14 32 51 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 43.7 .5 4A190107021 Saugus Water Reclamation Plant 26200. Springbrook Ave., Saugus, CA 91350 WWTP other agency 4A190107023 Valencia Water Reclamation Plant. 28185 The Old Road, Valencia, CA 91355 WWTP other agency N 35 0 3 Y Y Other (specify below) Spill cause(s): Vandalism (specify below), Debris-Rags, Fats, Oil and Grease (FOG), Debris-wipes/Non-disposables Vandalism: Rags & Latex Gloves Gravity Mainline No Spill corrective action: Added Sewer to Preventive Maintenance Program, Enforcement action against Fats, Oil, and Grease (FOG) source, Inspected Sewer Using CCTV to Determine Cause 10.a. If other, describe: 10.b. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps: Added sewer to Hydro preventive maintenance program. A grease accumulation report was forwarded to the Enviornmental Programs division for further investigation. 10.c. Schedule of major milestones: 30-day hydro periodic schedule. 2023 8SSO10543 8 616 27-MAR-24 Municipal(Public) 56349 0 3 2 1 4 1 0 1 0 0 NA 25 186 1 82 15 2 0 0 100 4 38 58 0 0 0 100 17745 0 None 0 9 63 10 5 5 4 4 0 0 100 2 9 1 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 5 97 1 8 330101001 City of Beaumont, 715 W. 4th St, Beaumont, CA 92223 WWTP same agency N NA 0 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure NA Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA NA Purchased a CCTV van for in-house videoing, funded a repair and replace CIP, 2024 8SSO10543 8 616 19-MAR-25 Municipal(Public) 58463 0 3 2 1 4 1 0 1 0 0 NA 25 186 1 82 15 2 0 0 100 4 38 58 0 0 0 100 19343 0 None 0 9 63 10 5 5 4 4 0 0 100 2 9 1 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 5 59 12 8 330101001 City of Beaumont, 715 W. 4th St, Beaumont, CA 92223 WWTP same agency N NA 0 0 0 Y Y Other (specify below) Developer owned and operated lift Stations and gravity lines that have not been released to the city. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA Started an in-house CCTV program. Started using CIP funding to repair and replace facilities. Upgraded a lift station to add an additional redundant force main line. Held developers responsible for improper maintenance of their systems by placing stop work orders and requiring the developer to start an inspection and maintenance program. 2025 8SSO10543 8 616 19-MAR-26 Municipal(Public) 62597 0 3 2 1 3 1 1 1 0 0 NA 25 187 1 82 15 2 0 0 100 4 38 58 0 0 0 100 19705 0 None 0 9 63 10 5 5 4 4 0 0 100 2 9 1 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 5 61 8 8 330101001 City of Beaumont, 715 W. 4th St, Beaumont, CA 92223 WWTP same agency N NA 0 0 0 Y Y Other (specify below) Soil erosion and failure at a manhole structure near an ephemeral drainage. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA NA Extensive redesign work and repair of sewer system near the ephemeral drain. Continuing to use CIP funding to repair and replace facilities. Updated lift station city standards for new incoming stations. Started utilizing a CMMS system for work orders and asset management. 2023 8SSO10544 8 616 29-MAR-24 Municipal(Public) 12885 0 6 1 1 1 2 4 1 0 8 3 NASSCO Certified CCTV Operators 1 115 0 90 10 0 0 0 100 100 0 0 0 0 0 100 11800 11800 Lower only 45 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 5 36 5 N/A Big Bear Area Regional Wastewater Agency WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Other (specify below) We have not experienced a spill, but we do have sewer main lines that we Hydro clean monthly due to bellies in lines, find roots thru CCTV efforts and remove roots thru root cutting and root foaming to kill roots. Other (specify below) We do not have any failure points to date. No spill investigations to report. We have Capital Improvement Projects to update Lift Station Pumps and Valves and are consistent with cleaning and inspection to limit deficiencies. 2024 8SSO10544 8 616 23-DEC-25 Municipal(Public) 12865 0 6 1 1 0 2 5 1 0 8 4 NASSCO Certified CCTV Operators 1 115 0 90 10 0 0 0 100 100 0 0 0 0 0 100 11800 11800 Lower only 45 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 5 42 5 8 360108001 Baldwin Lake, null WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Root Intrusion We did experience a sewer stoppage resulting in a small spill due to root intrusion. Other (specify below) We do not have any failure points to date. No ongoing spill investigations to report. We have Capital Improvement Projects to update Lift Station Pumps and Valves and have rigorous cleaning and inspection operations to limit deficiencies. 2025 8SSO10544 8 616 22-APR-26 Municipal(Public) 12537 1 5 1 1 1 2 4 1 0 8 3 NASSCO Certified CCTV Operators 1 115 0 90 10 0 0 0 100 100 0 0 0 0 0 100 11800 11800 Lower only 45 0 5 15 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 5 49.8 10.7 8 360108001 Baldwin Lake, null WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Other (specify below) We have not experienced a major spill but we do have sewer main lines that we hydro clean monthly due to bellies in lines, find roots thru CCTV efforts and remove roots thru root cutting and root foaming to kill roots. Other (specify below) We do not have any failure points to date. No spill investigations to report. We have Capital Improvement Projects to update Lift Station Pumps and Valves and are consistent with cleaning efforts and inspection to limit deficiencies. 2023 8SSO20000 8 616 02-APR-24 School 18000 3 1 1 1 0 0 0 0 0 0 N/A 0 4 29 29 42 0 0 0 100 0 0 0 0 0 0 0 4 4 Upper and Lower 0 33 25 32 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 0 0 0 0 6 0 1 0 8 360114003 001, , CA SSS other agency N N/A 0 0 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A None Further routine inspections and cleanings and mainting an upto date Sewer Systems Management Plan 2025 8SSO20000 8 616 01-APR-26 School 18000 3 1 1 1 0 0 0 0 0 0 N/A 0 4 29 29 42 0 0 0 100 0 0 0 0 0 0 0 4 4 Upper and Lower 0 33 25 32 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 0 0 0 0 6 0 1 1 8 360114003 001, , CA SSS other agency N N/A 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Gravity Mainline N/A None Continued routine inspections and cleanings and maintaining an upto date Sewer Systmes Management Plan 2023 5SSO10815 5R 616 10-JAN-25 Municipal(Public) 1500 0 1 1 1 2 0 0 0 0 0 1.5 6.1 45 52 0 0 0 0 97 2 1 0 0 0 0 3 500 500 Lower only 5.6 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 5SSO10815 Gerber Treatment Plant WWTP same agency N 0 0 0 N Y Debris-General Pump Station - Controls None None 2024 5SSO10815 5R 616 30-JAN-26 Municipal(Public) 1500 0 1 1 1 2 0 0 0 0 0 1.5 6.1 45 52 0 0 0 0 97 2 1 0 0 0 0 3 500 500 Lower only 5.6 0 0 100 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 2 5SSO10815 Gerber Treatment Plant WWTP same agency N N 0 0 0 N Y Debris-General Pump Station - Controls None None 2025 5SSO10815 5R 616 16-MAR-26 Municipal(Public) 1500 0 1 1 1 2 0 0 0 0 0 N/A 1.5 6.1 45 52 0 0 0 0 97 2 1 0 0 0 0 3 500 500 Lower only 5.6 0 0 100 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 2 5SSO10815 Gerber Treatment Plant WWTP same agency N 0 0 0 N Y Debris-General Pump Station - Controls NONE NONE 2023 8SSO10548 8 616 26-MAR-24 School 45000 0 6 1 2 0 0 0 0 0 0 NA 0 2 70 30 0 0 0 0 100 0 0 0 0 0 0 0 0 2 Upper and Lower 3 10 10 10 60 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 8SSO20044 City of Fullerton Collection System WWTP other agency N N NA NA NA 0 0 0 Y Y Debris-General NA Gravity Mainline NA NA NA 2024 8SSO10548 8 616 14-OCT-25 School 48000 0 6 1 2 0 0 0 0 0 0 N/A 0 2 70 30 0 0 0 0 0 0 0 0 0 0 0 0 0 2 Upper and Lower 3 10 10 10 60 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 8 300110002 OCSD Plant #001, CA WWTP other agency N N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A N/A 2025 8SSO10548 8 616 24-FEB-26 School 48000 0 6 1 2 0 0 0 0 0 0 NA 0 2 70 30 0 0 0 0 0 0 0 0 0 0 0 0 2 2 Upper and Lower 3 10 10 10 60 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 8 300110002 OCSD Plant #001, CA WWTP other agency N N NA NA NA 0 0 0 Y Y Debris-General NA Gravity Mainline NA NA NA 2023 4SSO10430 4 616 02-APR-24 Municipal(Public) 18439 6 26 3 1 1 1 1 0 0 0 1 84 0 77 23 0 0 0 100 100 0 0 0 0 0 100 5755 0 None 0 0 0 8 51 41 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 84 2 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 19 Y Y Other (specify below) HEAVY RAGS AND GREASE Gravity Mainline NONE Adjusted schedule/method of preventive maintenance;Enforcement action against FOG source 2024 4SSO10430 4 616 02-APR-26 Municipal(Public) 19219 2 27 3 1 1 2 1 0 0 0 0 84 0 78 22 0 0 0 100 100 0 0 0 0 0 100 5755 0 None 0 0 0 8 51 41 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 20.7 .2 4SSO11397 SSS other agency 4SSO11388 SSS other agency N 0 0 19 Y Y Root Intrusion Gravity Mainline We will inspect sewer using CCTV to determine if further actions are needed. We will inspect sewer using CCTV to determine if further actions are needed. 2025 4SSO10430 4 616 02-APR-26 Municipal(Public) 19321 3 26 3 1 2 2 1 0 0 0 0 1 84 0 78 22 0 0 0 100 100 0 0 0 0 0 100 5755 0 None 0 0 0 8 51 41 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 15.6 .1 4B190107015 001, , Cerritos, CA 90703 SSS other agency N 1 0 20 Y Y Debris-Rags Gravity Mainline We will inspect sewer using CCTV to determine if further actions are needed. We will inspect sewer using CCTV to determine if further actions are needed. 2023 5SSO10826 5R 616 18-MAR-24 Municipal(Public) 2084 0 3 1 0 0 0 0 0 0 0 N/A 3 16 11 70 16 3 0 0 100 40 10 50 0 0 0 100 926 0 None 0 0 0 17 83 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 1 1 1 5A520104001 Lake California WWTP 22099 River View Drive, Cottonwood, CA 96022 WWTP same agency N N N/A N/A N/A 1 0 0 Y Y Other (specify below) No spills in 2023 Other (specify below) No spills in 2023 None N/A 2024 5SSO10826 5R 616 05-MAR-25 Municipal(Public) 2113 0 3 1 0 0 0 0 0 0 0 N/A 3 16 11 70 16 3 0 0 100 40 10 50 0 0 0 100 939 0 None 0 0 0 17 83 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 3 2 0 0 0 0 0 5 1 1 1 5A520104001 Lake California WWTP 22099 River View Drive, Cottonwood, CA 96022 WWTP same agency N N N/A N/A N/A 1 0 0 Y Y Other (specify below) No spills in 2024. Other (specify below) No spills in 2024 N/A N/A 2025 5SSO10826 5R 616 19-MAR-26 Municipal(Public) 2113 0 3 1 0 0 0 0 0 0 0 N/A 3 16 11 70 16 3 0 0 100 40 10 50 0 0 0 100 939 0 None 0 0 0 17 83 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 1 2 2 5A520104001 Lake California WWTP 22099 River View Drive, Cottonwood, CA 96022 WWTP same agency N 1 0 0 Y Y Other (specify below) No spills in 2025 Other (specify below) No spills in 2025 N/A N/A 2023 5SSO10827 5R 616 04-APR-24 Other 12000 2 2 1 1 0 0 0 0 0 0 NA 5 77 45 35 15 5 0 0 100 100 0 0 0 0 0 100 5733 0 None 0 0 1 30 66 3 1 0 0 0 100 0 0 1 8 0 0 0 0 0 9 0 0 0 0 0 0 0 0 0 0 1 60 20 5A040106001 SEWER COMMISSION-OROVILLE REGION, 2880 SOUTH FIFTH AVE, OROVILLE CA, 95966 WWTP other agency N N NONE NONE N NONE NONE N NONE NONE N NONE NONE N NONE none N/A 6 1 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline N/A N/A Closer monitoring of construction sites while heavy equipment is in use around District facilities. 2023 5SSO10833 5R 616 22-DEC-25 Municipal(Public) 123 0 2 1 0 1 0 1 0 1 3 N/A 0 3.7 73 27 0 0 0 0 100 0 0 0 0 0 0 0 197 0 Lower only .3 0 0 50 0 30 0 0 0 20 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO10833 Mineral CS, 9380 San Benito Avenue, Las Flores, CA 96035-9701 WWTP same agency 5A520102001 D-001, null WWTP same agency N N/A 0 0 0 Y Other (specify below) There has not been a reason at the WWTP for a major spill. All lines in a good shape and with a low population and only a couple of commercial accounts (small restaurant, small laundry mat, general store, 8 room seasonal motel) leaves influent fairly clean with minimal debris. System is a closed system. All laterals are 4 pipe. Gravity Mainline All mainlines are gravity fed. Low population and a couple of commercial accounts (small restaurant, small laundry mat, general store, 8 room seasonal motel) leaves influent fairly clean with minimal debris. All lines were inspected in 2018 with minimal issues found. New CCTV system purchased and is currently being inspected for 2024 New CCTV system purchased and able to use at a moments notice to inspect all lines including mainlines and laterals in the event of a blockage that leads to a spill. PACE Engineering, a consultant firm for Tehama County, has outlined a detailed master plan which includes all upgrades needed to the plants as well as the mainlines. All defects found have been noted and the urgency have been measured. Currently Tehama County is applying for grant opportunities to help with the cost associated with this rehab plan. September 2025 6 point repairs were done in the mainline, 3 sections of CIPP were installed, and 15 manholes were relined to address the priority deficiencies 2024 5SSO10833 5R 616 22-DEC-25 Municipal(Public) 123 0 2 1 0 1 0 1 0 1 3 N/A 0 3.7 73 27 0 0 0 0 100 0 0 0 0 0 0 0 197 0 Lower only .3 0 0 50 0 30 0 0 0 20 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A520102001 Mineral CS, 9380 San Benito Avenue, Las Flores, CA 96035-9701 WWTP same agency 5A520102001 D-001, null WWTP same agency N N/A 0 0 0 Y Y Other (specify below) There has not been a reason at the WWTP for a major spill. All lines in a good shape and with a low population and only a couple of commercial accounts (small restaurant, small laundry mat, general store, 8 room seasonal motel) leaves influent fairly clean with minimal debris. System is a closed system. All laterals are 4 pipe. Gravity Mainline All mainlines are gravity fed. Low population and a couple of commercial accounts (small restaurant, small laundry mat, general store, 8 room seasonal motel) leaves influent fairly clean with minimal debris. All lines were inspected in 2018 with minimal issues found. New CCTV system purchased and is currently being inspected for 2024. September 2025 the district had over 300ft of CIPP lining, 6 spot repairs, and 15 manholes relined for I&I. New CCTV system purchased and able to use at a moments notice to inspect all lines including mainlines and laterals in the event of a blockage that leads to a spill. PACE Engineering, a consultant firm for Tehama County, has outlined a detailed master plan which includes all upgrades needed to the plants as well as the mainlines. All defects found have been noted and the urgency have been measured. Currently Tehama County is applying for grant opportunities to help with the cost associated with this rehab plan. 2024 5SSO10835 5R 616 30-DEC-25 Municipal(Public) 3500 2 5 1 1 0 2 0 0 1 0 N/A 0 28.2 55 10 32 3 0 0 100 0 0 0 0 0 0 0 1777 0 None 0 5 5 26 31 17 16 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.5 5 5A470105001 Mount Shasta WWTP, 2500 Grant Road, Mount Shasta, CA 96067 WWTP same agency N N/A 0 0 0 Y Fats, Oil and Grease (FOG) Gravity Mainline None systematic upgrades 2025 5SSO10837 5R 616 30-MAY-26 Other 400000 1 2 2 1 1 1 0 0 0 0 Employee in OIT .5 .7 0 90 0 0 0 0 0 0 10 0 0 0 0 0 9 9 Upper and Lower .3 90 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 5A450702002 Oak Bottom Recreation Area, Oak Bottom , Whiskeytown, CA 96095 WWTP same agency N none none none none none none none none none none none 0 0 0 N Y Other (specify below) There have been no major spills. Other (specify below) There have been no infrastructure failures. There is no ongoing spill investigations. There are no deficiencies. 2023 5SSO10838 5R 616 31-DEC-25 Municipal(Public) 45000 1 4 2 1 0 0 0 0 0 0 5 2 0 0 100 5 0 0 100 0 0 5 95 0 0 100 3 0 None 0 0 30 70 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 4 1 1 5A040106001 SCOR 2880 South 5th Avenue, Oroville CA WWTP same agency Y N City Of Oroville 5SSO10799 N TWSD 5SSO10857 N LOAPUD 5SSO10827 0 1 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Force Main na na 2024 5SSO10838 5R 616 30-DEC-25 Municipal(Public) 45000 1 4 2 1 0 0 0 0 0 0 5 2 0 0 100 5 0 0 100 0 0 5 95 0 0 100 3 0 None 0 0 30 70 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 4 1 1 5A040106001 SCOR 2880 South 5th Avenue, Oroville CA WWTP same agency N N City of Oroville 5SSO10799 N TWSD 5SSO10857 N LOAPUD 5SSO10827 0 1 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Force Main na na 2023 5SSO10839 5R 616 01-APR-24 Municipal(Public) 405 1 3 1 2 0 4 1 0 0 1 1 6 22 46 3 0 0 29 100 40 0 0 0 0 60 100 186 186 None 1 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 5A450001004 Palo Cedro WWTF, Charolais Way, Palo Cedro, CA 96073 WWTP same agency N 3 2 0 N N Debris-General Gravity Mainline none Pump replacement\repair. 2023 5SSO10842 5R 616 27-MAR-24 Municipal(Public) 650 1 2 1 1 1 1 1 0 0 0 N/A 1 3 2 2 0 0 0 0 0 1 0 0 0 0 0 0 340 0 None 0 0 10 15 75 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 3 0 1 0 5SSO10842 Plumas Eureka Estates CS, 200 Lundy Lane, Blairsden, CA 96103-9713 SSS same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 1 1 0 N N Other (specify below) Pump station controls, mechanical, and power (2017) Other (specify below) Pump station controls, mechanical, and power N/A Two pump stations have been repaired including new controls, pumps and standby power. 2024 5SSO10842 5R 616 28-FEB-25 Municipal(Public) 650 1 2 1 1 1 1 1 0 0 0 N/A 1 3.6 43 57 0 0 0 0 100 100 0 0 0 0 0 100 340 0 None 0 0 10 15 75 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 3 0 1.5 0 5A320104004 Plumas Eureka Estates WWTF, 200 Lundy Lane, Blairsden, CA 96103-9713 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 1 0 N N Other (specify below) Pump Station controls, mechanical, and power (2017) Other (specify below) Pump station controls, mechanical, and power. N/A Two pump stations have been repaired including controls, pumps and standby power. 2021 & 2023 2025 5SSO10842 5R 616 17-MAR-26 Municipal(Public) 650 1 2 1 1 1 1 1 0 0 0 N/A 1 3.6 43 57 0 0 0 0 100 100 0 0 0 0 0 100 340 0 None 0 0 10 15 75 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 3 0 .6 0 5A320104004 Plumas Eureka Estates WWTF - WWTP 6, West end of West Ponderosa Drive, Blairsden, CA WWTP same agency 5A320104004 Plumas Eureka Estates WWTF - WWTP 7, 223 Sequoia Cir, Blairsden, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 1 0 Y N Debris from Construction N/A Other (specify below) Pump station controls, mechanical and power N/A Two pump stations have been upgraded/repaired to include controls, pumps and standby power. 2021 & 2023 2023 5SSO10843 5R 616 27-MAR-24 Municipal(Public) 4897 1 1 1 1 0 1 0 0 0 1 1 16 80 10 10 0 0 0 0 100 0 0 0 0 0 0 1083 0 None 0 0 0 20 25 40 15 0 0 0 100 0 1 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 5 2 1 5SSO10843 City of Portola 35 Third Ave. Portola, Ca 96122 WWTP same agency N 0 1 0 Y Y Debris-General Gravity Mainline None at this time Increased monitoring of trouble areas, adjust maintenance frequency as needed. 2023 5SSO10844 5R 616 09-APR-24 Other 3767 0 2 1 1 0 0 0 0 0 0 N/A 3 33 25 55 20 0 0 0 100 25 0 75 0 0 0 100 1695 1695 Lower only 2 0 15 85 0 0 0 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 1 0 0 0 5SSO10844 American Valley CSD 900 Spanish Creek Road Quincy, CA WWTP same agency N 24 4 0 N Y Debris-General Manhole None in 2023. Preventative maintenance and inspections. 2024 5SSO10844 5R 616 19-DEC-25 Municipal(Public) 3767 2 1 2 1 0 0 0 0 0 0 Our operators maintain their wastewater treatment plant operator certifications. 3 33 25 55 20 0 0 0 100 25 0 75 0 0 0 100 1695 1695 Lower only 2 0 15 85 0 0 0 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 1 .5 .2 0 5A320103001 American Valley CSD 900 Spanish Creek Rd. Quincy, CA 95971 WWTP same agency N 24 4 0 N Y Debris-Rags Lower Lateral None PReventative Maintenance and Inspections. 2025 5SSO10844 5R 616 29-JAN-26 Other 3767 3 3 0 0 0 0 0 0 0 0 N/A 3 33 25 55 20 0 0 0 100 25 0 75 0 0 0 100 1695 1695 Lower only 2 0 15 85 0 0 0 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 1 0 3 1 5A320103001 001, , CA WWTP same agency N 24 4 0 N Y Debris-wipes/Non-disposables Lower Lateral None. Preventative maintenance, to include frequent inspections, root cutting, snaking lines, etc. 2023 5SSO10845 5R 616 03-APR-24 Municipal(Public) 14588 1 5 1 2 1 5 0 0 0 6 n/a 6 60 45 35 8 1 0 0 90 42 4 21 0 0 0 10 0 0 None 0 0 11 17 28 23 9 10 1 0 100 0 0 0 0 1 0 0 0 0 1 0 0 9 6 2 0 0 0 0 17 6 33 2 5A520101001 Red Bluff D-001, , CA WWTP same agency N 7 5 7 Y Y Fats, Oil and Grease (FOG) Gravity Mainline none increased maintenance, additional grease interceptors installed on private lateral, and education of business owners on importance of maintenance of grease interceptors. 2024 5SSO10845 5R 616 13-MAR-26 Municipal(Public) 14113 1 5 1 2 1 5 0 0 0 6 NA 6 60 45 35 8 1 0 0 90 42 4 21 0 0 0 10 0 0 None 0 0 11 17 28 23 9 10 1 0 100 0 0 0 0 1 0 0 0 0 1 0 0 9 6 2 0 0 0 0 17 6 33 2 5A520101001 Red Bluff D-001, , CA WWTP same agency N NA 7 5 7 Y Y Fats, Oil and Grease (FOG) Roots and non-disposable materials Gravity Mainline None Increased maintenance, additional grease interceptors, public outreach education for business owners about grease interceptors. 2025 5SSO10845 5R 616 13-MAR-26 Municipal(Public) 14710 1 5 1 2 1 5 0 0 0 6 NA 6 60 45 35 8 1 0 0 90 42 4 21 0 0 0 10 0 0 None 0 0 11 17 28 23 9 10 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 9 6 2 0 0 0 0 0 6 33 2 5A520101001 Red Bluff D-001, , CA WWTP same agency N NA 7 5 7 Y Y Root Intrusion FOG, non-disposables Gravity Mainline NA None Increased Maintenance, Additional grease interceptors installed on private laterals, and public outreach on importance of maintenance of grease interceptors. 2023 8SSO10551 8 616 06-MAR-25 Municipal(Public) 76547 1 7 1 1 2 1 1 3 0 0 None 6.7 193.3 3 83 12 2 0 0 100 25 25 50 0 0 0 100 20259 0 None 0 1 13 72 14 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 75 25 0 0 0 0 0 0 100 0 92 4.2 8332818001 Inland Empire Utility Agency WWTP other agency N 3 1 2 Y Y Other (specify below) None Other (specify below) None None N/A 2024 8SSO10551 8 616 12-MAR-26 Municipal(Public) 76414 1 7 1 1 2 1 1 3 0 0 6.7 193.3 3 83 12 2 0 0 100 25 25 50 0 0 0 100 20259 0 None 0 1 13 72 14 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 6 0 0 0 0 0 0 0 6 0 92 3 8332818001 Inland Empire Utility Agency WWTP other agency N N/A 3 1 2 Y Y Other (specify below) none Other (specify below) none none N/A 2025 8SSO10551 8 616 26-MAR-26 Municipal(Public) 77314 1 7 1 1 2 1 1 3 0 0 6.7 200.2 3 83 12 2 0 0 100 25 25 50 0 0 0 100 20259 0 None 0 1 13 72 14 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 6 0 0 0 0 0 0 0 6 0 76 4.1 8 362918001 Inland Empire Utility Agency WWTP other agency N 3 1 2 Y Y Other (specify below) none Other (specify below) none none N/A 2023 4SSO10431 4 616 28-MAR-24 Municipal(Public) 93000 4 7 3 2 2 3 3 2 0 0 N/A 1 150 5 63 21 8 3 0 100 0 0 0 100 0 0 100 18400 0 None 0 0 17 0 0 0 83 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 247 2 4B190106002 Hyperion WWTP, 12000 Vista Del Mar Blvd, Playa del Rey CA 90293 WWTP same agency 4B190122003 SWIP - Advanced Water Treatment Facility, 1771 Main Street, Santa Monica CA 90401 WWTP other agency Y N City of Los Angeles 4B190106002 N/A 0 0 1 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Adjusting preventative maintenance schedule of jetting the sewer mains. Annual CIP for replacing or rehabilitation of sewer mains. 2024 4SSO10431 4 616 02-APR-25 Municipal(Public) 93000 4 7 3 2 2 3 3 2 0 0 N/A 1 150 5 63 21 8 3 0 100 0 0 0 100 0 0 100 18400 0 None 0 0 17 0 0 83 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 284 2 4B190106002 Hyperion WWTP, 12000 Vista Del Mar Blvd, Playa del Rey CA 90293 WWTP same agency 4B190122003 SWIP - Advanced Water Treatment Facility, 1771 Main Street, Santa Monica CA 90401 WWTP other agency Y Y City of Los Angeles 4B190106002 N/A 0 0 1 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Adjusting preventative maintenance schedule of jetting the sewer mains. Annual CIP for replacing or rehabilitation of sewer mains. 2025 4SSO10431 4 616 27-MAR-26 Municipal(Public) 93000 4 7 3 2 3 7 1 4 0 0 N/A 1 150 5 63 21 8 3 0 100 0 0 0 100 0 0 100 18400 0 None 0 3 17 0 0 0 80 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 281 2 4B190106002 Hyperion WWTP, 12000 Vista Del Mar, Playa del Rey, CA 90293 WWTP other agency 4B190122003 Los Angeles Coastal Plain (Santa Monica), , CA WWTP same agency Y N City of Los Angeles 4B190106002 N/A 0 0 1 Y Y Root Intrusion N/A Gravity Mainline N/A No ongoing spill investigations at the time of annual report completion. Adjustment of preventative maintenance schedule of sewer jetting based on SSO's and CCTV work completed. Annual CIP for the replacement or rehabilitation of sewer mains. 2023 5SSO10850 5R 616 25-MAR-24 School 10000 0 1 1 0 1 0 0 0 0 0 1 2 80 10 5 0 0 0 95 0 5 0 0 0 0 5 55 55 Upper and Lower 3 5 20 0 75 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 3 0 0 0 0 0 0 0 3 0 1 2 5A450110001 Shasta College Sewage Disposal Pond, 11555 North Old Oregon Trail, Redding, CA 96003 WWTP same agency N 0 0 0 Y Y Other (specify below) We've had no major spill on campus Other (specify below) We've had no failure point that have caused an overflow/spill on campus None We have all of our forced mains including pump stations, grease traps, floor drains and condensate drains on our preventative maintenance schedule 2023 5SSO10851 5R 616 28-MAR-24 Municipal(Public) 9278 1 9 2 1 1 1 0 0 0 0 N/A 5 56 67 24 8 1 0 0 100 24 12 64 0 0 0 100 3519 14 Upper and Lower 1 0 8 9 65 0 0 0 0 18 100 0 0 1 3 0 0 0 0 0 4 0 0 1 1 0 0 0 0 0 2 0 7 0 5SSO10851 COSL WWTP 3700 Tibbits Road, Shasta Lake, CA WWTP same agency N 74 6 0 Y Y Other (specify below) We had 0 spills in 2023, but there was not option for N/A Other (specify below) We had 0 spills in 2023, but there was not option for N/A N/A N/A 2024 5SSO10851 5R 616 08-JUL-25 Municipal(Public) 9315 2 9 2 1 1 1 0 0 0 0 N/A 5 56 67 24 8 1 0 0 100 24 12 64 0 0 0 100 3519 14 Upper and Lower 1 0 10 13 70 0 0 0 0 6 100 0 0 1 3 0 0 0 0 0 4 0 0 1 1 0 0 0 0 0 2 0 25 25 5A450105001 Shasta Lake WWTF, 3700 Tibbits Road, Shasta Lake, CA 96019 WWTP same agency N 74 6 0 Y Y Other (specify below) We had 0 Spills in 2024, but there was no option for N/A. Other (specify below) We had 0 Spills in 2024, but there was no option for N/A. N/A N/A 2025 5SSO10851 5R 616 19-MAR-26 Municipal(Public) 9448 2 9 2 1 1 1 0 0 0 0 N/A 5 56 67 24 8 1 0 0 100 24 12 64 0 0 0 100 3521 14 Upper and Lower 0 0 10 13 70 0 0 0 0 0 100 0 0 70 3 0 0 0 0 0 4 0 0 1 1 0 0 0 0 0 2 0 25 25 5A450105001 Shasta Lake WWTF, 3700 Tibbits Road, Shasta Lake, CA 96019 WWTP same agency N 74 6 0 Y Y Other (specify below) We had 0 spills in 2025, but there was no option for N/A Other (specify below) We had 0 spills in 2025, but there was no option for N/A N/A N/A 2023 5SSO10857 5R 616 25-MAR-24 Municipal(Public) 10136 1 5 1 2 0 0 0 0 0 0 1 40 80 10 10 0 0 0 100 100 0 0 0 0 0 100 2361 0 None 0 0 5 10 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 100 40 5SSO10838 Oroville CS, , Oroville, CA 95965-4952 WWTP other agency N 0 1 0 N Y Debris from Construction Manhole None Jet rodding and mainline maintenance 2024 5SSO10857 5R 616 04-NOV-25 Municipal(Public) 12144 1 5 1 2 0 0 0 0 0 0 0 1 40 80 10 10 0 0 0 100 100 0 0 0 0 0 100 2359 0 None 0 0 5 10 85 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 100 40 5SSO10838 Sewerage Commission Oroville Region 2880 S 5th Ave, Oroville, CA 95965 WWTP other agency N 1 0 0 N Y Debris from Construction Manhole None Routine maintenance including televising and jet-rodding 2025 5SSO10857 5R 616 16-MAR-26 Municipal(Public) 12169 1 6 3 1 0 0 0 0 0 0 None 1 40 80 10 10 0 0 0 100 100 0 0 0 0 0 100 2364 0 None 0 0 5 10 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 40 40 5SSO10838 Sewerage Commission Oroville Region 2880 S 5th Ave, Oroville, CA 95965 WWTP other agency N 1 0 0 N Y Debris from Construction None Manhole None none Routine maintenance including cctv and jet-rodding 2023 5SSO10859 5R 616 28-MAR-24 Municipal(Public) 93293 2 11 4 3 13 4 0 0 0 0 0 5 287 18 51 20 8 1 1 100 45 19 34 2 0 0 100 21408 30 None 0 2 46 33 7 4 6 2 0 0 100 0 2 1 0 0 0 0 0 0 3 2 9 4 0 0 0 0 0 0 15 5 95 23 5A040102001 4827 Chico River Road WWTP same agency N N California State University N/A N Canyon Oaks N/A 13 0 17 Y Other (specify below) Both Rags/wipes and roots Gravity Mainline N/A N/A Currently investigating general collection system capacity deficiencies and project prioritizations with Carollo Engineers. 2023 8SSO10554 8 616 12-MAR-24 Municipal(Public) 25129 0 2 1 1 0 1 0 0 0 0 1 73 1 75 21 2 0 1 100 0 0 0 0 0 0 0 5849 0 None 0 2 19 18 55 5 0 0 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 55 9 8360114002 City of San Bernardino WWTP other agency N 0 0 1 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 8SSO10554 8 616 20-FEB-25 Municipal(Public) 25021 0 2 1 1 0 1 0 0 0 0 1 73.9 1 77 21 1 0 0 100 0 0 0 0 0 0 0 6003 0 None 0 4 19 22 50 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 60 10 8360114002 City of San Bernardino WWTP same agency N 0 0 1 N Y Fats, Oil and Grease (FOG) N/A Other (specify below) N/A N/A N/A 2025 8SSO10554 8 616 09-APR-26 Municipal(Public) 25631 0 2 1 1 0 1 0 0 0 0 na 6060 73 1 75 21 2 0 1 100 0 0 0 0 0 0 0 6060 0 None 0 4 19 26 44 7 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 57 10 8360114002 City Of San Bernardino WWTP other agency N N na na N na na N na na N na na N na na na 0 0 1 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 8SSO10556 8 616 02-APR-24 Municipal(Public) 27000 6 7 2 1 2 2 0 1 0 0 NA 7 90 0 88 9 3 0 0 100 100 0 0 0 0 0 100 7480 0 None 0 20 65 10 5 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 2 0 8 0 0 0 0 0 0 10 0 30 30 8 332353001 001, , CA WWTP other agency N NA NA NA 1 0 2 N Y Fats, Oil and Grease (FOG) NA Force Main NA None Not applicable 2023 9SSO10703 9 616 20-NOV-25 Municipal(Public) 42191 0 8 2 3 4 1 3 3 0 0 N/A 3 140 10 77 10 3 0 0 100 20 27 19 34 0 0 100 14762 0 None 0 0 12 12 40 22 14 0 0 0 100 0 1 2 1 0 0 0 0 0 4 0 7 0 2 0 0 0 0 0 9 3 147 15 9 000000117 SOCWA - Coastal TP, 28303 Alicia Parkway, Laguna Niguel, CA 92677 WWTP other agency 9 000000175 SOCWA - JB Latham TP, 34156 Del Obispo Street, Dana Point, CA 92629 WWTP other agency N N/A 1 1 2 Y Y Root Intrusion Fats, Oil and Grease (FOG) is also a factor. Gravity Mainline N/A None Increased cleaning, point sewer repairs & capital improvement projects. 2024 9SSO10703 9 616 20-NOV-25 Municipal(Public) 42191 0 8 2 3 2 3 4 3 0 0 1- Palomar College - Wastewater Technology Certificate. 1-Santiago Canyon College - Wastewater Environmental Sanitation Certificate 3 140 10 75 12 3 0 0 100 19 27 54 0 0 0 100 14762 0 None 0 0 11 22 50 17 0 0 0 0 100 0 1 2 1 0 0 0 0 0 4 1 7 0 2 0 0 0 0 0 10 3 172 34 9 000000117 SOCWA - Coastal TP, 28303 Alicia Parkway, Laguna Niguel, CA 92677 WWTP other agency 9 000000175 SOCWA - JB Latham TP, 34156 Del Obispo Street, Dana Point, CA 92629 WWTP other agency N N/A 1 1 2 Y Root Intrusion Fats, Oils, and Grease are all contributors. Gravity Mainline N/A NONE Sewer line root foaming, continually evaluate cleaning cycles, capital improvement projects (pipe lining and manhole rehab), and staff training. 2025 9SSO10703 9 616 23-MAR-26 Municipal(Public) 42217 0 7 2 2 3 0 3 3 0 0 2 have associate certifications from junior colleges. 3.5 140 10 77 10 3 0 0 100 20 27 19 34 0 0 100 14762 0 None 0 1 12 12 39 22 14 0 0 0 100 0 1 2 1 0 0 0 0 0 4 1 7 0 2 0 0 0 0 0 10 0 152 15 9 000000117 SOCWA - Coastal TP, 28303 Alicia Parkway, Laguna Niguel, CA 92677 WWTP other agency 9 000000175 SOCWA - JB Latham TP, 34156 Del Obispo Street, Dana Point, CA 92629 WWTP other agency Y N Doheny State Beach CS 9SSO11544 N Moulton Niguel Water District CS 9SSO10678 Not applicable 3 2 2 Y Y Fats, Oil and Grease (FOG) FOG and Root Intrusion, but only able to select one option from the drop down menu. Other (specify below) Joints in sewer pipelines and sewer lateral connections. None Enhanced sewer line cleaning and capital improvement projects. 2023 9SSO10706 9 616 27-MAR-24 Municipal(Public) 247520 2 16 3 1 1 18 2 0 1 0 Certified through CWRA for Collections System Maintenance, And Plant Maintenance-Mechanical Technologist/Electrical/Instrumentation 20 620 0 76 16 5 0 0 97 1 0 1 1 0 0 3 58702 0 None 0 4 54 37 5 0 0 0 0 0 100 0 27 12 3 0 0 0 0 0 42 2 36 17 3 0 0 0 0 0 58 0 173 5 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto CA, 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA, 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley CA, 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvarado, Temecula CA, 92590 WWTP same agency Y N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N/A 0 0 3 Y Y Vandalism (specify below) The majority of our spill are cause by vandalism Other (specify below) The majority of our spills are caused by vandalism that usually manifest at a manhole None SSMP Audit and SSMP Plan Update 2024 9SSO10706 9 616 01-APR-25 Municipal(Public) 252344 2 16 3 1 1 18 2 0 1 0 Certified through CWEA for Collections Systems Maintenance, and Plant Maintenance-Mechanical Technologist/Electrical/Instrumentation 21 626.1 0 77 16 4 0 0 97 1 0 1 1 0 0 3 59301 0 None 0 5 54 37 4 0 0 0 0 0 100 0 27 12 3 0 0 0 0 0 42 2 36 17 3 0 0 0 0 0 58 0 476 43 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto CA, 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA, 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley CA, 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvarado, Temecula CA, 92590 WWTP same agency N N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N Rancho California Water District 9SSO10699 N Western Municipal Water District 8SSO10637 0 0 3 Y Y Debris-General Force Main None SSMP Plan Update 2025 9SSO10706 9 616 31-MAR-26 Municipal(Public) 227496 6 17 4 3 10 12 3 3 0 0 Certified through CWEA for Collections System Maintenance and Plant Maintains -Mechanical Technologist/Electrical/Instrumentation. 20.3 628.5 0 77 16 4 0 0 97 1 0 1 1 0 0 3 59566 0 None 0 6 53 37 4 0 0 0 0 0 100 2 16 7 2 0 0 0 0 0 27 0 0 0 0 0 0 0 0 0 0 0 124 5 8 332783001 San Jacinto Valley RWRF, 770 North Sanderson, San Jacinto CA, 92582 WWTP same agency 8 332783001 Perris Valley RWRF, 1301 Case Road, Perris CA 92570 WWTP same agency 8 332783001 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley CA, 92551 WWTP same agency 8 332783001 Temecula Valley RWRF, 42565 Avenida Alvardo, Temecula, CA 92590 WWTP same agency Y N City of Hemet 8SSO11418 N Lake Hemet Municipal Water District 8SSO10585 N City of San Jacinto 8SSO10562 N Rancho California Water District 9SSO10699 N Western Municipal Water District 8SSO10637 5 1 3 Y Y Other (specify below) EMWD had no spills in the San Diego region during the 2025 calendar year. Other (specify below) EMWD had no system infrastructure failures in the San Diego region during the 2025 calendar year. None. None. 2023 9SSO10709 9 616 28-MAR-24 School 65000 20 24 7 4 0 0 0 0 0 0 1 27 31 42 26 0 0 1 100 70 0 30 0 0 0 100 710 710 Upper and Lower 3 1 20 20 50 5 4 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 2 6 6 9000000759 E.W. Blom Point Loma WWTP WWTP other agency N 0 0 0 Y Y Other (specify below) Auto-Sampler for COVID Wastewater testing has float attached at end of sample line, debris built up on float and caused back-up and overflow from manhole. This caused 2 separate Cat 3 spills and maintenance procedures for this equipment was enhanced. No spills since. Other (specify below) No failure points None No deficiencies 2024 9SSO10709 9 616 01-APR-25 School 65000 18 26 7 4 0 0 0 0 0 0 1 27 31 42 26 0 0 1 100 70 0 30 0 0 0 100 710 710 Upper and Lower 3 1 20 20 50 5 4 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2 6.8 6.8 9000000275 E.W. Blom Point Loma WWTP WWTP other agency N 0 0 0 Y Y Other (specify below) No spills Other (specify below) None None No deficiencies 2025 9SSO10709 9 616 26-MAR-26 School 65000 18 26 7 4 0 0 0 0 0 0 1 27 31 42 26 0 0 1 100 70 0 30 0 0 0 100 710 710 Upper and Lower 3 1 20 20 50 5 4 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 2 4.1 4.1 9000000275 E.W. Blom Point Loma WWTP WWTP other agency N 0 0 0 Y Y Other (specify below) No spills Other (specify below) None None No deficiencies 2023 9SSO10710 9 616 25-MAR-24 Military 85000 1 34 2 3 0 4 2 0 0 0 The 6-Certified Collection System Operators were certified by the State Water Resources Control Board (SRWCB). 35 122 9 62 28 0 0 1 100 5 7 54 8 0 26 100 5000 3118 Upper and Lower 32 0 32 23 0 45 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 78 20 2 0 0 0 0 0 100 0 0 15 9SSO10710 SRTTP, 20 Camp Area, MCBCP WWTP same agency 9SSO10710 NRTTP, 52 Camp Area, MCBCP WWTP same agency Y N MCBCP Family Housing Laterals 9SSO10710 Not Applicable 5 5 5 Y Y Other (specify below) Roots, Grease Manhole ARVs None Cleaning frequency, Repair Contracts 2024 9SSO10710 9 616 31-MAR-25 Military 54870 3 34 2 3 0 0 0 0 0 0 35 122 9 62 28 0 0 1 100 5 7 54 8 0 26 100 5000 3118 Upper and Lower 32 0 32 23 0 45 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 78 20 2 0 0 0 0 0 100 3 0 0 9SSO10710 SRTTP, 20 Camp Area, MCBCP WWTP same agency 9SSO10710 NRTTP, 52 Camp Area, MCBCP WWTP same agency Y N MCBCP Family Housing Laterals 9SSO10710 Not Applicable 5 5 5 Y Y Other (specify below) roots, grease, other debris, and fusion joint failure on force mains. Force Main ARVs, force main couplings and vehicle accident. None Cleaning frequency, Repair contracts 2025 9SSO10710 9 616 01-APR-26 Military 56131 7 27 2 3 0 0 0 0 0 0 35 122 9 62 28 0 0 1 100 5 7 54 8 0 26 100 5000 3118 Upper and Lower 32 0 32 23 0 45 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 78 20 2 0 0 0 0 0 100 3 2.7 0 9 000001182 Advanced Water Treatment Plant at Haybarn Canyon, , Camp Pendleton, CA 92055 WWTP same agency 9 000002713 Front Gate/ Recreation Fields, Camp Pendleton, , Camp Pendleton, CA WWTP same agency N 5 5 5 Y Y Other (specify below) Spills caused by debris, vehicle accident, and pipe failure. Other (specify below) Failure points include manholes, ARVs, and pipe force mains. None Repair contracts, system assessments 2023 9SSO10712 9 616 05-JAN-26 Municipal(Public) 2910 0 3 1 1 1 0 0 2 0 1 NA 1 23.9 1 99 0 0 0 0 100 100 0 0 0 0 0 100 1300 0 None 0 10 5 70 15 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 4 6.8 5 9 000000157 Whispering Palms WPCF, 15525 Via De Santa Fe , Rancho Santa Fe, CA 92067 WWTP same agency N NA NA NA NA NA NA NA NA NA na 0 0 1 N Y Debris-General na Gravity Mainline na na none 2024 9SSO10712 9 616 05-JAN-26 Municipal(Public) 2910 0 3 1 1 1 0 0 2 0 1 na 1 23.9 1 99 0 0 0 0 100 100 0 0 0 0 0 100 1300 0 None 0 10 5 70 15 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 4 6.4 5 9 000000157 Whispering Palms WPCF, 15525 Via De Santa Fe , Rancho Santa Fe, CA 92067 WWTP same agency N NA NA NA NA NA NA NA NA NA na 0 0 1 N Y Debris-General na Gravity Mainline na none na 2023 5SSO10713 5F 616 02-APR-24 Municipal(Public) 71412 0 6 1 1 2 1 2 0 0 0 none 2 261 5 47 16 5 2 25 100 0 0 100 0 0 0 100 19296 23 None 1 4 33 17 13 3 0 0 0 30 100 0 3 0 3 0 0 0 0 6 12 0 2 0 0 0 0 0 0 1 3 0 133 13 5D540110001 City of Tulare Wastewater Treatment Facility, 1875 South West Street, Tulare, CA 93274-1253 WWTP same agency N N NA NA NA 0 1 0 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA none Pump replacement, electrical panel upgrades, and replacement of aged and undersized sewer main with capital improvement projects 2023 5SSO11218 5F 616 22-MAR-24 Municipal(Public) 19644 0 3 0 1 1 2 0 0 1 4 All are wastewater-certified operators 1 36 11 48 19 0 0 22 100 0 0 0 0 0 0 0 4642 0 None 0 0 25 25 25 25 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 78389 25260 5SSO11218 Arvin CS, 200 Campus Drive, Arvin, CA 93203 SSS other agency N N N 0 0 N 0 0 N 0 0 0 0 0 Y Y Debris from Lateral Pump Station - Mechanical All related to the Lift station's electrical, mechanical, and controls None Following the SSMP and staying on top of the CCTV 2025 5SSO10863 5S 616 05-FEB-26 Municipal(Public) 200 0 1 1 1 1 0 0 0 0 0 State of California Water Resources Control Board, Certificate of Competence, Grade 1 WWTP. 1.9 1.8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 87 1 None 0 0 1 0 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 .7 0 .1 5B030100001 Amador City WW Export System, Off Hwy 49, W of Town , Amador City, CA 95222 WWTP same agency N NA 5 1 0 Y Y Other (specify below) There were no spills in the system for the Year 2025. Other (specify below) There were no spills in the system for the Year 2025. None. None. 2023 5SSO10716 5F 616 12-SEP-25 Municipal(Public) 31000 2 6 1 0 0 0 0 0 0 8 NA 10.3 60 60 20 15 5 0 0 0 10 0 30 60 0 0 0 8000 0 None 0 2 20 48 20 0 0 0 0 0 0 10 20 60 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 5B24NP00017 Atwater Regional DP 001, , CA WWTP same agency N 0 0 0 Y Y Root Intrusion Gravity Mainline 0 Rod trouble spots annually 2024 5SSO10716 5F 616 12-SEP-25 Municipal(Public) 31000 1 7 1 0 0 0 0 0 0 8 NA 10.3 60 60 20 15 5 0 0 0 10 0 30 60 0 0 0 8000 0 None 0 2 20 48 20 0 0 0 0 0 0 10 20 60 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 0 5B24NP00017 530 South Bert Crane Rd Atwater CA WWTP same agency N 0 0 0 Y Y Root Intrusion NA Gravity Mainline 0 Rod trouble spots annually 2025 5SSO10716 5F 616 18-MAR-26 Municipal(Public) 31000 2 6 1 0 0 0 0 0 0 7 10.3 40 60 20 15 5 0 0 100 10 0 30 60 0 0 100 0 15 None .2 2 20 48 20 0 0 0 0 0 100 10 20 60 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 17 0 5B24NP00017 Atwater Regional DP 001, , CA WWTP same agency N 0 0 0 Y Y Root Intrusion Gravity Mainline 0 Rod trouble spots annually 2023 5SSO10865 5S 616 29-MAR-24 Municipal(Public) 3542 1 4 1 1 0 3 0 0 0 0 n/a 45 225 60 30 10 0 0 0 100 100 0 0 0 0 0 100 1769 0 None 0 0 50 40 10 0 0 0 0 0 100 0 3 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 2 1 1 5B050100002 Angels City WWTP, 3000 Centennial Road, Angels Camp, CA 95222 WWTP same agency Y N Six Mile Village 5SS011500 n/a 5 0 1 Y Y Debris-wipes/Non-disposables n/a Manhole n/a none Increased inspections 2024 5SSO10865 5S 616 28-MAR-25 Municipal(Public) 3809 3 2 1 1 1 1 1 2 0 0 N/A 45 225 60 30 10 0 0 0 100 100 0 0 0 0 0 100 1762 0 None 0 0 50 40 10 0 0 0 0 0 100 0 3 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 32 3 1 5B050100002 Angels City WWTP, 3000 Centennial Road, Angels Camp, CA 95222 WWTP same agency N N Six Mile Village 5SS011500 N/A 5 0 1 Y Y Debris-wipes/Non-disposables N/A Manhole N/A None Increased CCTV Inspections 2025 5SSO10865 5S 616 25-MAR-26 Municipal(Public) 3809 6 2 1 1 0 3 0 0 0 0 N/A 45 225 60 30 10 0 0 0 100 100 0 0 0 0 0 100 1762 0 None 0 0 50 40 10 0 0 0 0 0 100 0 3 1 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 32 3 1 5B050100002 Angels City WWTP, 3000 Centennial Road, Angels Camp, CA 95222 WWTP same agency N N Six Mile Village 5SS011500 N/A 5 0 1 Y Y Debris-wipes/Non-disposables N/A Manhole N/A None Increased inspections 2023 5SSO20010 5S 616 26-MAR-24 Municipal(Public) 3500 0 1 0 1 1 1 0 0 0 1 n/a 0 8 60 30 10 0 0 0 100 0 0 0 0 0 0 0 923 0 None 0 0 20 10 10 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 baily rd. WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 Y N Debris-General n/a Upper Lateral n/a none none 2023 5SSO20010 5S 616 25-JAN-24 Municipal(Public) 3500 0 1 0 1 1 1 0 0 0 1 n/a 0 8 60 30 10 0 0 0 100 0 0 0 0 0 0 0 923 0 None 0 0 20 10 10 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 baily rd. WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 N N Debris-General n/a Upper Lateral n/a none none 2023 5SSO10868 5S 616 22-MAR-24 Municipal(Public) 1440 1 2 2 2 4 2 1 2 0 0 All Collections Crew Members also carry Distribution Certificates. As do all Operators, Construction Crew Members, Utility Crew Members, Mechanics, and Electricians. 6 3 90 10 0 0 0 0 100 95 5 0 0 0 0 100 1290 645 Lower only 2 0 5 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 2 4 0 0 0 0 0 0 0 4 3 1 5B05NC00022 Arnold WWTP, 3294 Hwy 4 , Arnold, CA 95223 WWTP same agency N 1 5 1 Y Damage by Others Not Related to Collection System Construction/Maintenance Underground Incorporated, a private utility company, uni-directionally bored through a service lateral. This filled the sewer main with boring grout and resulted in a manhole backup and spill. Lower Lateral None Various 2024 5SSO10868 5S 616 22-SEP-25 Municipal(Public) 1440 2 1 1 2 2 1 0 1 0 0 All collections staff also carry Distribution Certificates 6 23 90 10 0 0 0 0 100 95 5 0 0 0 0 100 1290 645 Lower only 2 0 5 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 2 4 0 0 0 0 0 0 4 4 5 2 5B05NC00022 Arnold WWTP, 3294 Hwy 4 , Arnold, CA 95223 WWTP same agency N 1 5 1 Y Damage by Others Not Related to Collection System Construction/Maintenance Air Relief Valve (ARV)/ Blow-Off Valve (BOV) lower lateral none Various 2025 5SSO10868 5S 616 23-MAR-26 Municipal(Public) 1440 1 3 1 2 2 1 0 1 0 5 All collections staff also carry Distribution Certificates 6 23 90 10 0 0 0 0 100 95 5 0 0 0 0 100 1290 645 Lower only 2 0 5 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 2 4 0 0 0 0 0 0 6 4 5 0 5B05NC002 3294 HWY 4 Arnold CA 95223 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 5 1 N Y Damage by Others Not Related to Collection System Construction/Maintenance Air Relief Valve (ARV)/ Blow-Off Valve (BOV) None Purchased new CCTV Van to streamline inspections. Hydro-cleaning hotspots. Including Lift station Rehab on the updated 5-year CIP. 2023 5SSO10869 5S 616 20-MAR-24 Municipal(Public) 137 0 0 1 1 0 0 0 0 0 0 Both employees have NAWT certification for inspections of OWTS 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 137 0 None 0 1 1 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 1 1 5SSO10869 Auburn Lk Trls Onsite WW Disp CS, , Georgetown, CA 95634 SSS same agency N N n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) n/a Other (specify below) We don't have any infrastructure failures. Our only problem is I & I during rain. None, we dont have ongoing spills. We have some pipe replacements on bid right now because there is a piece of plastic stuck in it. Also putting another overflow tank in to keep up with I&I. 2024 5SSO10869 5S 616 25-FEB-25 Municipal(Public) 137 1 0 1 1 0 0 0 0 0 0 Our system doesn't need certified operators 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 137 0 None 0 1 1 98 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 1 1 5SSO10869 Auburn Lk Trls Onsite WW Disp CS, , Georgetown, CA 95634 SSS same agency N N n/a n/a n/a 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Heavy Rainfall Other (specify below) overflow storage to small yes, working on new storage tank for overflow. Getting more flow monitors to narrow down where the I&I is coming form. 2025 5SSO10869 5S 616 26-MAR-26 Municipal(Public) 137 1 0 1 1 0 0 0 0 0 0 Just a collections system. Working on CWEA collections certification 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 137 0 None 0 1 1 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 .5 0 5SSO10869 Auburn Lk Trls Onsite WW Disp CS, , Georgetown, CA 95634 SSS same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) I & I Other (specify below) Too small of pumps-not enough additional storage Yes. Working on up sizing our pumps, and trying to get a grant for new electrical building. 2023 5SSO10870 5S 616 19-DEC-25 Municipal(Public) 375 0 2 2 1 0 0 1 0 0 1 N/A .5 2.8 98 2 0 0 0 0 100 2 0 0 0 0 0 100 157 157 Lower only .5 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 0 5A311009001 Auburn Valley CSD WWTF, 8815 Auburn Valley Road, Auburn, CA 95602 WWTP same agency N N/A 0 0 0 N Y Debris from Lateral Pump Station - Controls No ongoing spill deficiencies Watching for possible weaknesses 2024 5SSO10870 5S 616 24-DEC-25 Municipal(Public) 454 1 2 2 1 0 0 1 0 0 1 N/A .5 2.8 98 2 0 0 0 0 100 2 0 0 0 0 0 2 122 0 None 0 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 1 5A311009001 Auburn Valley CSD WWTF, 8815 Auburn Valley Road, Auburn, CA 95602 WWTP same agency N N N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Debris from Lateral N/A Gravity Mainline N/A N/A Pipeline Videos 2025 5SSO10870 5S 616 21-MAR-26 Municipal(Public) 454 1 2 2 1 0 0 1 0 0 1 N/A 0 2 98 2 0 0 0 0 100 2 0 0 0 0 0 2 122 0 Lower only 1 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 1 0 5A311009001 Auburn Valley CSD WWTF, 8815 Auburn Valley Road, Auburn, CA 95602 WWTP same agency N N N/A N/A N/A 0 0 0 N Y Debris from Lateral N/A Gravity Mainline N/A N/A Pipeline Videos 2023 5SSO10720 5F 616 29-MAR-24 School 41000 0 2 1 1 0 0 0 0 0 0 na 1 25 20 25 50 0 0 0 95 5 0 0 0 0 0 5 0 0 None 0 10 10 20 20 15 15 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 10 15 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP same agency N 0 0 0 Y Y Other (specify below) no spills Other (specify below) na none no spills 2024 5SSO10720 5F 616 24-APR-25 School 41000 0 2 1 1 0 0 0 0 0 0 na 1 25 20 25 50 0 0 0 0 5 0 0 0 0 0 0 0 0 None 0 10 10 20 20 15 15 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 10 15 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP same agency N 0 0 0 Y Y Other (specify below) no spills Other (specify below) na none no spills 2025 5SSO10720 5F 616 23-MAR-26 School 41000 0 2 1 1 0 0 0 0 0 0 NA 1 25 20 25 50 0 0 0 0 5 0 0 0 0 0 0 0 0 None 0 10 10 20 20 15 15 10 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 10 15 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP same agency N 0 0 0 Y Y Other (specify below) no spills Other (specify below) NA None No spills 2023 5SSO10721 5S 616 04-DEC-25 Municipal(Public) 49282 3 2 2 1 0 2 0 0 0 1 NA 11 134 30 47 19 3 1 0 100 0 80 20 0 0 0 100 12606 0 None 0 1 20 36 32 6 5 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 3 6 2 0 0 0 0 0 11 3 48 8 5C500100001 Ceres WWTP, 4200 Morgan , Ceres, CA 95307 WWTP same agency N NA 0 0 0 Y Y Debris-General Grit & rocks Manhole NA None Capital Improvement Projects, maintenance flushing, trouble spot flushing, lift station servicing, all lift stations are backup power ready, portable generators 2024 5SSO10721 5S 616 04-DEC-25 Municipal(Public) 48397 3 2 2 1 0 2 1 0 0 0 All operators have certificates of completion for Wastewater Treatment Plant Operations & Maintenance Vol.1. Some have Vol.2, Collections Systems Operations & Maintenance. 11 139 42 63 25 7 2 0 139 0 80 20 0 0 0 100 12606 0 None 0 1 20 36 32 6 5 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 3 6 2 0 0 0 0 0 11 3 74.4 5.1 5C500100001 Ceres WWTP, 4200 Morgan , Ceres, CA 95307 WWTP same agency N NA 0 0 0 Y Y Debris-wipes/Non-disposables Wipes & line separation Gravity Mainline NA None Capital Improvement Projects, maintenance flushing, trouble spot flushing, Smart Covers with alerts, lift station servicing, all lift stations backup generator ready, portable generators. 2025 5SSO10721 5S 616 19-FEB-26 Municipal(Public) 49253 3 2 2 1 2 2 1 0 0 0 All operators have California State Water Resources Control Board Wastewater Treatment Plant Certification. Grade 3 = 1, Grade 2 = 2, Grade 1 = 4, OIT = 1 11 139 42 63 25 7 2 0 139 0 80 20 0 0 0 100 12619 0 None 0 1 20 36 32 6 5 0 0 0 100 0 3 0 0 0 0 0 0 0 0 0 3 6 2 0 0 0 0 0 11 3 73 16.9 5C500100001 Ceres WWTP, 4200 Morgan , Ceres, CA 95307 WWTP same agency 5C500102001 001, , Modesto, CA WWTP other agency 5C500108001 001, , Turlock, CA WWTP other agency N NA 0 0 0 Y Y Debris-General Grit Gravity Mainline NA None Capital Improvement Projects, Acoustic Sewer Assessment on approximately 1/3 of collection system, updates Sewer Master Plan including capacity assurance study, I & I study. Trouble spot list with regular interval cleaning. Smart covers with alarms, all lift stations on SCADA with alarms, lift stations serviced & cleaned weekly, lift stations back-up generator ready with 2 portable generator available. Training & certification for operators. FOG program updating. 2023 5SSO10722 5S 616 30-MAR-24 Municipal(Public) 13365 1 6 1 1 2 0 0 0 0 0 N/A 3 80 33 39 25 3 0 0 100 100 0 0 0 0 0 100 4600 0 None 0 1 4 10 30 20 20 10 5 0 100 0 0 0 0 0 0 0 0 0 0 6 6 3 1 0 0 0 0 0 6 4 17 17 5A31NP00042 City of Auburn WWTP, 10441 Ophir Rd, Auburn WWTP same agency N 4 0 0 Y Root Intrusion Upper Lateral None Proactively hydro flush, root saw, and CCTV the sewer system (approx. 17 miles/year). Utilize CMMS to 2026 5SSO20091 5F 616 25-SEP-26 Municipal(Public) 400000 9 13 1 1 0 0 0 0 0 0 N/A 5.2 929.1 24 49 15 6 3 3 100 33 25 41 0 0 1 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 5 885 75 5D150100001 Bakersfield WWTP #2, 1700 Planz , Bakersfield, CA 93307 WWTP same agency 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP same agency Y N East Niles Community Services District 5SSO10733 N Kern Sanitation Authority 5SSO10737 N North of River Sanitary District 5SSO10750 N/A 4 1 0 Y Y Fats, Oil and Grease (FOG) Debris - Rags Gravity Mainline 6-8 dia. mains near high density developments None Clean and video sewers lines daily. SCADA monitors 24/7. Lift stations are visually inspected 3 times per week. 2023 5SSO10873 5S 616 26-MAR-24 Municipal(Public) 59 0 4 1 1 2 2 0 0 0 0 N/A 2 16 93 4 3 0 0 0 0 100 0 0 0 0 0 0 0 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 1 1 5SSO10873 Bear Valley CS, , Bear Valley, CA 00044 WWTP same agency N 12 1 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Force Main None Improving location datasets 2024 5SSO10873 5S 616 03-FEB-25 Municipal(Public) 59 0 2 1 1 1 2 0 0 0 0 One Operator-In-Training (OIT) 2 16 93 4 3 0 0 0 0 100 0 0 0 0 0 0 0 0 None 0 0 1 0 99 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 1.3 1.1 5SSO10873 Bear Valley CS, , Bear Valley, CA 00044 WWTP same agency N 12 1 0 Y Y Root Intrusion Gravity Mainline None added specific manhole and collection pipe segment to sewer preventative maintenance program; adjusted schedule of preventative maintenance program; evaluating pipe repair and timing as part of capital improvement program; collection line PM (hydro jetting and CCTV) schedule adjusted from every 5 years to monthly; 2025 5SSO10873 5S 616 16-MAR-26 Municipal(Public) 120 0 2 1 0 1 3 0 0 0 0 NA 2 16 93 4 3 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 1 0 99 0 0 0 0 0 100 0 0 0 100 0 0 0 0 0 100 0 0 0 100 0 0 0 0 0 100 0 1 1.2 5SSO10873 Bear Valley Water District, 441 Creekside Drive, Bear Valley, CA 95223 WWTP same agency N NA 12 1 0 Y Y Other (specify below) No major spills in 2025 Other (specify below) No major spills in 2025 NA routine maintenance 2023 5SSO10724 5F 616 27-MAR-24 Municipal(Public) 95167 7 7 1 1 3 4 2 0 1 2 13 287 22 52 17 6 2 1 100 10 1 27 2 0 60 100 32172 0 None 0 1 32 14 4 1 1 0 0 47 100 0 3 0 2 0 0 0 0 0 5 0 6 0 9 0 0 0 0 0 15 35 235 14 5SSO10724 City Of Merced CS, 678 West 18Th Street, Merced, CA 95340 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA None 3 9 0 Y Y Fats, Oil and Grease (FOG) None Gravity Mainline None None Using our CCTV inspection reports we have identified gravity mainlines in our system that we have included into our annual CIP program. We are currently having a 15 main line replaced by June 2024. 2024 5SSO10724 5F 616 27-MAR-25 Municipal(Public) 95958 3 10 1 1 5 3 1 0 0 0 N/A 13 287 22 52 17 6 2 1 100 10 1 27 2 0 60 100 32454 0 None 0 1 32 14 4 1 1 0 0 47 100 0 3 0 2 0 0 0 0 0 5 0 6 0 9 0 0 0 0 0 15 35 235 32.5 5SSO10724 10260 Gove Rd WWTP same agency N Y City of Merced Collection System 5SSO10724 No 3 9 0 Y Y Fats, Oil and Grease (FOG) Flushable wipes mixing with FOG Gravity Mainline None No Actively flushing the entire system at least annually and cleaning sewer enhanced areas monthly. Documenting FOG inspections using new software 2025 5SSO10724 5F 616 01-APR-26 Municipal(Public) 98039 8 10 1 1 4 4 2 0 0 0 N/A 13 288 22 52 17 6 2 1 100 10 1 27 2 0 60 100 32995 0 None 0 1 32 14 4 1 1 0 0 47 100 0 3 0 2 0 0 0 0 0 5 1 6 0 9 0 0 0 0 0 16 35 226 10 5C240108001 10260 Gove Rd Merced 95341, Merced, CA WWTP same agency N Y City of Merced Collection System 5SSO10724 NO 3 9 0 Y Y Fats, Oil and Grease (FOG) Flushable Wipes Combined With Roots Gravity Mainline None No Continuing to flush the entire system once a year and Cleaning our enhanced areas monthly and as needed. 2024 5SSO10725 5S 616 23-DEC-25 Municipal(Public) 12244 1 3 2 1 2 1 0 0 0 2 1 31 30 50 10 10 0 0 100 50 50 0 0 0 0 100 3489 13 None 0 3 34 31 15 15 0 0 0 2 100 0 3 4 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 .2 0 5C500103001 City of Newman WWTF, 2600 Hills Ferry Road, Newman, CA 95360 WWTP same agency N 0 0 0 N Fats, Oil and Grease (FOG) Gravity Mainline No Ongoing investigations. The city performs preventative maintenance to all sewer collection infrastructure. Any found deficiencies are corrected immediately. 2025 5SSO10725 5S 616 16-MAR-26 Municipal(Public) 12244 1 3 2 1 2 1 0 0 0 2 1 31 30 50 10 10 0 0 100 50 50 0 0 0 0 100 3489 13 None 0 3 34 31 15 15 0 0 0 2 100 0 3 4 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 5C500103001 City of Newman WWTF, 2600 Hills Ferry Road, Newman, CA 95360 SSS same agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline No ongoing spill investigations The city performs preventative maintenance to all sewer collections infrastructure. any found deficiencies are corrected immediately. The City has the sewer pump stations on a SCADA system. The SCADA is set to call the on-call employee, who is 24 hours on call, if a malfunction is detected. 2023 5SSO10726 5F 616 25-MAR-24 Municipal(Public) 21036 1 4 2 1 0 0 0 0 0 0 N/A 2 103 9 40 29 11 0 11 100 100 0 0 0 0 0 100 5131 25 Upper and Lower 25 10 25 25 25 0 0 0 0 15 100 0 1 0 0 0 0 0 0 0 1 1 0 7 0 0 0 0 0 0 8 0 5 0 5SSO10750 North of River Sanitary District #1 CS, 204 Universe Avenue, Bakersfield, CA 93308 WWTP other agency N N/A 3 1 0 Y Y Other (specify below) No Major spills identified Pump Station - Mechanical Lift Station pumps repaired during the year None N/A 2024 5SSO10726 5F 616 01-MAY-25 Municipal(Public) 21915 0 5 1 1 0 0 0 0 0 0 N/A 2 103 10 40 29 11 0 10 100 100 0 0 0 0 0 100 5175 25 None 0 10 25 25 25 0 0 0 0 15 100 0 1 0 0 0 0 0 0 0 1 1 0 7 0 0 0 0 0 0 8 0 4 0 5SSO10750 North of the River Sanitary District 28970 7th Standard Road Shafter, CA 93263 WWTP other agency N N/A 3 1 0 Y Y Other (specify below) No major spills identified Pump Station - Mechanical pumps were sent in for wear repair None Continue to look into new technology to assist in flow level and metering capabilities. 2023 5SSO10879 5S 616 29-MAR-24 Municipal(Public) 1300 7 1 2 1 1 0 0 0 0 0 1 OIT operator 0 4 40 20 40 0 0 0 100 0 0 0 0 0 0 0 322 5 Lower only 1 0 10 10 0 80 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 5B070102002 Byron Sanitary District WWTF, 4200 Camino Diablo Road, Byron, CA 94514 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills in last 10 years. Other (specify below) CCTV results indicate root intrusion is primary ongoing concern. None Prepared prioritized list of maintenance and repair actions based on 2023 CCTV inspection. 2024 5SSO10879 5S 616 01-APR-26 Municipal(Public) 1300 7 1 2 1 1 0 0 0 0 0 1 OIT operator 0 4 40 20 40 0 0 0 100 0 0 0 0 0 0 0 322 5 Lower only 1 0 10 10 0 80 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 5B070102002 Byron Sanitary District WWTF, 4200 Camino Diablo Road, Byron, CA 94514 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills in the last 10 years Other (specify below) CCTV results indicate root intrusion is a primary concern. None Prepared prioritized list of maintenance and repair actions based on 2023 CCTV inspection 2025 5SSO10879 5S 616 01-APR-26 Municipal(Public) 1300 7 1 2 1 1 0 0 0 0 0 1 OIT Operator 0 4 40 20 40 0 0 0 100 0 0 0 0 0 0 0 322 5 Lower only 1 0 10 10 0 80 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 5B070102002 Byron Sanitary District WWTF, 4200 Camino Diablo Road, Byron, CA 94514 WWTP same agency N 0 0 0 Y Y Other (specify below) No spills in last 10 years Other (specify below) CCTV results indicate root intrusions is a primary ongoing concern None Prepared prioritized list of maintenance actions based on CCTV inspections. 2023 5SSO20001 5S 616 28-MAR-24 School 38000 0 3 1 1 0 0 0 0 0 0 NA 1 12 35 25 20 10 0 10 100 100 0 0 0 0 0 100 300 300 Upper and Lower 3 5 5 10 10 70 0 0 0 0 100 0 80 0 0 0 0 0 0 0 80 0 0 20 0 0 0 0 0 0 20 0 24 3 5SSO10912 Sacramento Area Sewer District WWTP same agency 5SSO10901 City of Sacramento WWTP other agency N NA 0 0 0 N Y Other (specify below) No causes of major spills. Pump Station - Mechanical Other potential failure points include aging infrastructure, root intrusion, and fats oils and grease. NA Worked to develop improved and updated maps accessible via fieldmaps phone app. Preventive Maintenance programs take place twice a year to jet and maintain both stormwater and sewer infrastructure. 2023 5SSO20001 5S 616 28-MAR-24 School 38000 0 3 1 1 0 0 0 0 0 0 NA 1 12 35 25 20 10 0 10 100 100 0 0 0 0 0 100 300 300 Upper and Lower 3 5 5 10 10 70 0 0 0 0 100 0 80 0 0 0 0 0 0 0 80 0 0 20 0 0 0 0 0 0 20 0 24 3 5SSO10912 Sacramento Area Sewer District WWTP same agency 5SSO10901 7266 Amherst St, Sacramento, CA, , CA WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 0 N Y Other (specify below) No causes of major spills. Pump Station - Mechanical Other potential failure points include aging infrastructure, root intrusion, and fats oils and grease. NA Worked to develop improved and updated maps. Preventive Maintenance programs in place to jet and maintain sewer and storm infrastructure twice a year. 2024 5SSO20001 5S 616 01-APR-25 School 38000 0 3 1 1 0 0 0 0 0 0 NA 1 12 35 25 20 10 0 10 100 100 0 0 0 0 0 100 300 300 Upper and Lower 3 5 5 10 10 70 0 0 0 0 100 0 80 0 0 0 0 0 0 0 80 0 0 20 0 0 0 0 0 0 20 0 24 3 55SSO10912 Sacramento Area Sewer District WWTP same agency 5SSO10901 7266 Amherst St., Sacramento, CA WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 0 N Y Other (specify below) No causes of major spills. Pump Station - Mechanical Other potential failure points include aging infrastructure, root intrusion, and fats/oils/grease. NA Work to develop improved and updated maps accessible via field maps phone app. Preventative Maintenance programs take place twice a year to jet and maintain both stormwater and sewer infrastructure. Hired Ace Electric Motor & Pump Company to evaluate all controls to make improvements to equipment performance. 2025 5SSO20001 5S 616 27-APR-26 Other 38000 0 3 1 1 0 0 0 0 0 0 NA 1 12 35 25 20 10 0 10 100 100 0 0 0 0 0 100 300 300 Upper and Lower 3 5 5 10 10 70 0 0 0 0 100 0 80 0 0 0 0 0 0 0 80 0 0 20 0 0 0 0 0 0 20 0 24 3 55SSO10912 Sacramento Area Sewer District WWTP same agency 5SSO10901 7266 Amherst St., Sacramento, CA WWTP other agency N N NA NA NA 0 0 0 N Y Other (specify below) No major spills occurred this year Pump Station - Mechanical Other potential failure points include aging infrastructure, root intrusion, and fats/oils/grease NA Work to develop improved and updated maps accessible via field maps phone app. Preventative maintenance programs take place twice a year to jet and maintain both stormwater and sewer infrastructure. Hired Ace Electric Motor & Pump Company to evaluate all controls to make improvements to equipment performance. 2023 5SSO10883 5S 616 22-OCT-25 Municipal(Public) 1039 3 27 4 3 0 2 0 0 0 0 not applicable 1 3 77 23 0 0 0 0 100 100 0 0 0 0 0 100 159 159 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 20 80 0 0 0 0 0 0 100 0 3 0 5B03NC00053 Camanche North Shore WWTP, 2000 Camanche , Ione, CA 95640 WWTP same agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Manhole not applicable Inspected all laterals upstream of FOG blockage with closed-circuit tv. Contacted mobile home park occupants who had FOG build-up in their lateral. Reviewed EBMUD’s FOG outreach material with respective occupants. The FOG outreach material had previously been distributed to all mobile home park occupants. 2024 5SSO10883 5S 616 22-OCT-25 Municipal(Public) 507 3 27 4 3 0 2 0 0 0 0 not applicable 1 3 77 23 0 0 0 0 100 100 0 0 0 0 0 100 159 159 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 20 80 0 0 0 0 0 0 100 0 3 0 5B03NC00053 Camanche North Shore WWTP, 2000 Camanche , Ione, CA 95640 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, no spills during the reporting period Other (specify below) not applicable not applicable not applicable 2025 5SSO10883 5S 616 23-APR-26 Municipal(Public) 205 2 28 4 3 0 2 0 0 0 0 not applicable .6 4 77 23 0 0 0 0 100 100 0 0 0 0 0 100 159 159 Upper and Lower 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 20 80 0 0 0 0 0 0 100 0 4 0 5B03NC00053 Camanche North Shore WWTP, 2000 Camanche , Ione, CA 95640 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, there were no spills in 2025 Other (specify below) not applicable, there were no spills in 2025 not applicable not applicable, no spills in 2025 2023 5SSO10884 5S 616 27-MAR-24 Municipal(Public) 780 3 27 4 3 0 2 0 0 0 0 1 4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 342 342 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 3 0 5SSO10884 Camanche South Shore CS, , Oakland, CA 94607 WWTP same agency N not applicable 0 0 0 Y Y Other (specify below) foreign object, stick, that then collected debris Manhole not applicable closed-circuit tv inspection to identify deficiencies; none found 2024 5SSO10884 5S 616 22-APR-25 Municipal(Public) 350 3 27 4 3 0 2 0 0 0 0 1 4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 342 342 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 3 0 5B051015002 Camanche South Shore WWTP, 5908 Pattison , Wallace, CA 95254 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, no spills during the reporting period Other (specify below) not applicable not applicable not applicable 2025 5SSO10884 5S 616 23-APR-26 Municipal(Public) 111 2 28 4 3 0 2 0 0 0 0 .9 5.4 100 0 0 0 0 0 100 100 0 0 0 0 0 100 342 342 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 5.4 5.4 5B051015002 Camanche South Shore WWTP, 11700 Wade Lane, Wallace, CA 95225 WWTP same agency N 0 0 0 Y Y Other (specify below) not applicable, there were no spills in 2025 Other (specify below) not applicable, there were no spills in 2025 not applicable not applicable 2023 5SSO10728 5F 616 17-MAY-24 Municipal(Public) 143966 0 7 1 1 4 3 1 0 0 0 0 1.5 524.8 7 68 16 8 1 0 100 88 12 0 0 0 0 100 44357 0 None 0 2 26 25 25 4 2 4 1 11 100 1 2 1 7 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 113.6 2.1 5D540113001 Visalia Water Reclamation Facilitiy 7579 Ave. 288 Visalia, CA 93277 WWTP same agency N 77 1 1 Y Other (specify below) None Other (specify below) None None None 2024 5SSO10728 5F 616 18-MAR-25 Municipal(Public) 143966 0 7 1 1 4 3 1 0 0 0 0 1.5 524.8 7 68 16 8 1 0 100 88 12 0 0 0 0 100 44357 0 None 0 2 26 25 25 4 2 4 1 11 100 1 2 1 7 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 113.6 2.1 5D540113001 Visalia Water Reclamation Facilitiy 7579 Ave. 288 Visalia, CA 93277 WWTP same agency N 77 1 1 Y Other (specify below) None Other (specify below) None None None 2025 5SSO10728 5F 616 01-APR-26 Municipal(Public) 146271 1 6 1 1 4 3 1 0 0 0 1.5 524.8 7 68 16 8 1 0 100 88 12 0 0 0 0 100 44357 0 None 0 2 26 25 25 4 2 4 1 11 10 1 2 1 7 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 50.4 1.5 5D540113001 Visalia Water Reclamation Facilitiy 7579 Ave. 288 Visalia, CA 93277 WWTP same agency N 77 1 1 Y Other (specify below) None Other (specify below) None None None 2023 5SSO10885 5S 616 26-MAR-24 Municipal(Public) 280 4 6 9 1 4 8 2 3 0 0 N/A. All collection staff certified through CWEA 0 2 98 2 0 0 0 0 100 0 0 0 0 0 0 0 108 108 Lower only 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5A090102010 Camino Heights WWTP, Camino Heights Drive, Camino, CA 95709 WWTP same agency N 0 0 0 Y Y Other (specify below) None. Other (specify below) None. None. N/A 2024 5SSO10885 5S 616 25-MAR-25 Municipal(Public) 280 4 10 5 1 3 5 7 2 0 0 N/A. All collection staff certified through CWEA. 0 2 98 2 0 0 0 0 100 0 0 0 0 0 0 0 108 108 Lower only 1 0 0 0 100 98 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5A090102010 Camino Heights WWTP, Camino Heights Drive, Camino, CA 95709 WWTP same agency N 0 0 0 Y Y Other (specify below) None. Other (specify below) None. None. N/A 2025 5SSO10885 5S 616 24-MAR-26 Municipal(Public) 270 2 12 6 2 4 7 7 3 0 0 0 1.6 98 2 0 0 0 0 100 0 0 0 0 0 0 0 108 108 Lower only .9 0 0 0 98 0 0 0 0 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A090102010 Camino Heights WWTP, Camino Heights Drive, Camino, CA 95709 WWTP same agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None N/A 2023 8SSO10557 8 616 04-JUN-25 Municipal(Public) 7854 0 1 2 1 3 0 0 0 0 0 0 .2 35 1 67 15 0 0 17 100 100 0 0 0 0 0 100 2265 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 7 7 8 332783001 Perris Valley Regional Reclamation Facility 1301 Case DP-001, Perris, CA WWTP other agency N 0 0 0 Y Y Other (specify below) No spills Other (specify below) No failure points 0 0 2023 5SSO10888 5S 616 22-DEC-25 Municipal(Public) 215 1 3 1 1 1 1 0 0 0 0 .7 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 89 89 Lower only .7 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 0 2 2 5A290107002 001, , Nevada, CA WWTP same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Controls Pump Station - Mechanical None Routine maintenance and working to identify funding to assist with ongoing CIP projects. 2024 5SSO10888 5S 616 22-DEC-25 Municipal(Public) 21 1 3 1 1 0 1 1 0 0 2 .7 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 89 89 Lower only .7 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 2 5A290107002 001, , Nevada, CA WWTP same agency N 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline None Routine maintenance and working to identify funding to assist with ongoing CIP projects. 2025 5SSO10888 5S 616 31-MAR-26 Municipal(Public) 215 1 3 1 1 1 1 1 0 0 3 .7 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 89 89 Lower only .7 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 2 5A290107002 14326 Gas Canyon Rd. Nevada City, CA 95959 WWTP same agency N 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline None Routine maintenance and working to identify funding to assist with ongoing CIP projects. 2023 5SSO10730 5F 616 27-MAR-24 Municipal(Public) 6400 3 1 1 1 0 0 0 0 0 1 1 19 80 15 5 0 0 0 100 100 0 0 0 0 0 100 2000 0 None 0 2 8 50 30 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 8 3 5c15nc00095 Taft WWTF, Airport , Taft, CA 93268 WWTP same agency Y N city of taft collection system 5SSO10940 1 0 0 N Debris-General Gravity Mainline NA NA 2024 5SSO10730 5F 616 02-JAN-26 Municipal(Public) 6400 3 2 1 1 2 0 0 0 0 2 1 19 80 15 5 0 0 0 100 100 0 0 0 0 0 100 2000 0 None 0 2 8 50 30 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 13 9 5C15NC00095 Taft WWTF, Airport , Taft, CA 93268 WWTP other agency Y N city of taft collection system 5SSO10940 1 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA 2025 5SSO10730 5F 616 17-FEB-26 Municipal(Public) 6400 0 4 1 1 1 0 0 0 0 3 1 19 80 15 5 0 0 0 100 0 100 0 0 0 0 100 2000 0 None 0 2 8 50 30 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 12 9 5C15NC00095 Taft WWTF, Airport , Taft, CA 93268 WWTP other agency N Y city of taft collection system 5SSO10940 1 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA 2000ft of damaged sewer pipe gets replaced annually. 2023 8SSO10558 8 616 22-MAR-24 Municipal(Public) 73288 3 4 1 1 4 3 0 1 0 0 Not Applicable 4 246 3 78 15 4 0 0 100 16 1 83 0 0 0 100 14876 34 Upper and Lower 1 0 18 30 37 12 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 1 185 54 8SSO10558 Redlands City Wastewater CS, , Redlands, CA WWTP same agency N Not Applicable 11 0 5 Y Y Other (specify below) The spill was caused by issues commonly associated with the sanitary sewer system, such as flushable wipes or roots. To address recurring incidents, the city has implemented an ongoing Root Control Program since 2021, focused on managing root intrusion in the main trunk line. Additionally, regular inspections of the entire sewer conveyance system are conducted within a 3.5-year cycle to identify and mitigate potential issues. To enhance public awareness and promote responsible disposal practices, the city has developed pamphlets and flyers distributed at public outreach events. Other (specify below) Not Applicable Not Applicable Actions taken to address system deficiencies include implementing an ongoing Capital Improvements Plan (CIP) aimed at addressing aging sewer infrastructure. This plan involves regular inspections of sewer lines throughout the year(s) to identify deficiencies. Upon inspection, if immediate replacement is deemed necessary, we have allocated funds in the budget to remove and replace the infrastructure failure points. Additionally, as part of the CIP, we have initiated a slip lining project to rehabilitate deteriorating sewer lines and enhance their longevity and functionality where possible. 2024 8SSO10558 8 616 08-DEC-25 Municipal(Public) 73288 3 4 1 1 4 3 0 1 0 0 NA 3.4 245.3 3 78 15 4 0 0 100 16 1 83 0 0 0 100 15086 71 Upper and Lower .6 0 18 30 37 12 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 1 185 54 8 360111001 Redlands City Wastewater CS, Redlands, CA, 92374 WWTP same agency N NA 11 0 5 Y Y Other (specify below) Spills are often caused by issues commonly associated with the sanitary sewer system, such as grease and root buildup. Each spill is typically the first occurrence at a specific location. The city has had an ongoing root management program since 2021, and areas affected by new spills will be monitored more frequently moving forward. To raise public awareness and promote responsible disposal practices, the city has developed pamphlets and flyers, which are distributed at public outreach events and to surrounding neighborhoods. Other (specify below) NA There is currently no ongoing investigation. However, when an investigation is conducted, the collections crew speaks with neighbors to gather information from witnesses who observed the incident, including approximate start times. The crew relies on honest statements that are deemed accurate and reliable to move forward with the report. Actions taken to address system deficiencies include implementing a plan for the surrounding sewer system and areas to incorporate a Fat, Oil, and Grease (FOG) management program, as well as a root control program. This also involves regular cleaning of sewer lines and CCTV inspections throughout the year to identify deficiencies during inspections. 2025 8SSO10558 8 616 30-MAR-26 Municipal(Public) 74796 0 6 1 1 2 4 0 1 0 0 N/A 3.4 254.7 3 78 15 4 0 0 100 16 1 83 0 0 0 100 15319 71 Upper and Lower .7 0 18 30 37 12 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 1 252.8 57.1 8 360111001 Redlands City Wastewater CS, Redlands, CA, 92374 WWTP same agency N N/A 11 0 5 Y Y Debris-General N/A Other (specify below) N/A There is currently no ongoing investigation. However, when an investigation is conducted, the collections crew speaks with neighbors to gather information from witnesses who observe the incident, including approximate start times. The crew relies on honest statements that are deemed accurate and reliable to move forward with the report. Actions taken to address system deficiencies include implementing a plan for the surrounding sewer system and areas to incorporate a Fat, Oil, and Grease (FOG) management program, as well as a root control program. This also involves regular cleaning of sewer lines and CCTV inspections throughout the year to identify deficiencies during inspections. 2023 5SSO10890 5S 616 29-MAR-24 Municipal(Public) 114794 1 10 1 1 1 6 4 1 0 2 8 with a NAASCO PACP CERT 3 with a Department of Pesticide Qualified applicator 7 311 49 34 12 4 1 0 100 0 0 0 0 0 0 0 31453 31453 Lower only 177 3 13 56 26 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 116 29 2 071013001 Delta Diablo Outfall, , CA SSS other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 n/a 36 0 3 Y Y Pipe Structural Problem/Failure - Controls n/a Gravity Mainline n/a no We run an extensive sewer management program designed to minimize overflows and uphold infrastructure integrity. As part of our efforts, we conduct quarterly jetting sessions on problematic areas. Our strategies encompass a root control program to prevent blockages, CCTV inspections for identifying structural damage, and a fats, oils, and grease program to manage buildup. Moreover, we utilize flow monitoring in high-traffic zones for early intervention. To tackle aging infrastructure, we execute a capital improvement program prioritizing the timely replacement of deteriorating lines. 2024 5SSO10890 5S 616 21-MAR-25 Municipal(Public) 115291 2 14 1 1 4 7 5 1 0 2 8 with a NAASCO PACP CERT 4 with a Department of Pesticide Qualified applicator 7 316.8 49 34 12 4 1 0 100 0 0 0 0 0 0 0 32495 32495 Lower only 185 3 13 56 26 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 178.5 37 2 071013001 Delta Diablo Outfall, , CA SSS other agency N N/A 36 0 3 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A None We run an extensive sewer management program designed to minimize spills and uphold infrastructure integrity. As part of our efforts, we conduct quarterly jetting sessions on problematic areas. Our strategies encompass a root control program to prevent blockages, CCTV inspections for identifying structural damage, and a fats, oils, and grease program to manage buildup. Moreover, we utilize flow monitoring strategically placed in our system for monitoring and early intervention. To tackle aging infrastructure, we execute a capital improvement program prioritizing the timely replacement of deteriorating lines. 2025 5SSO10890 5S 616 25-MAR-26 Municipal(Public) 115291 3 10 1 1 3 6 3 1 0 4 4 with a NAASCO PACP CERT 4 with a Department of Pesticide Qualified applicator 1 Drone Part 107 license 1 316.8 44 39 12 4 0 1 100 0 0 0 0 0 0 0 32495 32495 Lower only 185 3 13 56 26 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 190.6 31.3 2 071013001 Delta Diablo Outfall, , CA WWTP other agency N N/A 36 0 3 Y Y Debris-wipes/Non-disposables N/A Lower Lateral N/A None We operate a comprehensive sewer management program focused on preventing spills and maintaining system integrity. As part of this effort, we perform quarterly jetting in problem areas. Our program also includes root control to prevent blockages, CCTV inspections to identify structural issues, and a fats, oils, and grease (FOG) program to reduce buildup. In addition, we use strategically placed flow monitoring for early detection and response. To address aging infrastructure, we implement a capital improvement program that prioritizes timely replacement of deteriorating sewer lines. 2023 5SSO10731 5F 616 17-MAR-26 Municipal(Public) 6200 0 1 2 0 0 0 0 0 0 0 N/A 1 7 10 20 30 40 0 0 0 0 0 0 0 0 0 0 0 0 None 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 7 0 5D540132001 C.O.W.W.T.P 4051RD 120 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Other (specify below) NO SPILLS OCCURED. Other (specify below) N/A N/A N/A 2024 5SSO10731 5F 616 18-MAR-26 Municipal(Public) 6200 0 1 2 0 0 0 0 0 0 0 1 7 10 20 30 40 0 0 0 0 0 0 0 0 0 0 0 0 None 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 7 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Natural Disaster (specify below) N/A Other (specify below) NO SPILLS OCCURED N/A N/A 2025 5SSO10731 5F 616 18-MAR-26 Municipal(Public) 6200 0 1 2 0 0 0 0 0 0 0 N/A 1 7 10 20 30 40 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 7 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 0 0 0 N N Other (specify below) NO SPILLS OCCURED Pump Station - Controls NO FAILURES OCCURED N/A N/A 2023 5SSO10891 5S 616 18-MAR-24 Municipal(Public) 64513 1 3 0 1 1 2 1 0 0 0 Two-Mechanical Technologist. One-Electrician 0 160 1 85 10 3 1 0 100 0 0 0 0 0 0 0 20749 20120 Lower only 152 2 75 10 10 3 0 0 0 0 100 1 1 1 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 3 0 13 4 5B070101001 City of brentwood WWTP 2251 Elkins Way, Brentwood, CA 94513 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 9 0 0 Y Pipe Structural Problem/Failure - Controls Fats/oils/grease Lower Lateral N/A none CCTV Inspections, Lateral&main line repairs/CIP projects. 2024 5SSO10891 5S 616 11-MAR-25 Municipal(Public) 65350 2 4 0 1 1 3 1 0 0 0 2 - Mechanical Technologist 0 160 1 85 10 3 1 0 100 0 0 0 0 0 0 0 20936 20300 Lower only 77 3 76 10 10 1 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 3 0 8.9 23.4 5B070101001 City of Brentwood WWTP 2251 Elkins Way, Brentwood CA 94513 WWTP same agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 9 0 0 N Y Pipe Structural Problem/Failure - Controls Fats/Oils/Grease Lower Lateral N/A none CCTV Inspections, Lateral and Main repairs and inspections, CIP projects. 2025 5SSO10891 5S 616 17-MAR-26 Municipal(Public) 66286 2 4 1 1 2 3 2 0 0 0 2 - Mechanical Technologist 0 160 1 85 10 3 1 0 100 0 0 0 0 0 0 0 20936 20300 Lower only 77 3 76 18 4 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 7.5 16.2 5B070101001 City of Brentwood WWTP 2251 Elkins Way, Brentwood CA 94513 WWTP same agency N N/A 9 0 0 N Y Debris-General Lower Lateral None CCTV Inspection with follow up repair if needed. 2023 5SSO10893 5S 616 27-MAR-24 Municipal(Public) 83269 0 13 2 3 1 4 4 3 0 1 1 employee also has CWEA Electrical and Instrumentation Grade 1. 9 304 60 21 12 5 1 1 100 65 0 18 4 0 13 100 25792 24511 Lower only 116 3 35 36 6 8 0 0 0 12 100 2 2 7 1 0 0 0 0 0 12 0 0 6 0 0 0 0 0 0 6 5 95 95 5SSO11045 Sacramento Regional CS, 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP same agency Y N Folsom State Prison (CS) 5SSO11192 N California State Prison, Sacramento CS 5SSO11183 N/A 90 5 0 Y Y Root Intrusion After root intrusion, the next most common spill causes (in order) in 2023 were debris, structural issues, and then grease. Lower Lateral After lower lateral spills, the next most common failure point in 2023 was gravity mainlines. Spills for 2023 have been reported and certified on CIWQS. Continuing with maintenance inspection program of CCTV and flushing of mainlines, manhole inspections, lateral inspections, and FSE FOG inspections. Areas with on-going problems are addressed through maintenance or added to CIP Projects for rehabilitation and/or replacement. 2024 5SSO10893 5S 616 08-JUL-25 Municipal(Public) 84782 0 13 2 3 1 3 6 4 0 1 One employee has his CWEA electrical and instrumentation grade I. 4.5 308 60 21 12 5 0 2 100 28 15 57 0 0 0 100 26020 24739 Lower only 117 7 34 38 6 5 0 0 0 10 100 2 2 7 1 0 0 0 0 0 12 0 0 6 0 0 0 0 0 0 6 3 47 47 5A340108002 Sacramento Area Sewer District, 8521 Laguna Station Road, Elk Grove, CA 95758 SSS other agency Y N Folsom State Prison (CS) 5SSO11192 N California State Prison, Sacramento CS 5SSO11183 N/A 90 3 0 Y Y Root Intrusion After root intrusion, the next most common spill causes (in order) in 2024 were structural, FOG, and debris. Lower Lateral After lower lateral spills, the next most common failure point in 2024 was gravity main lines. Spills in 2024 have been reported and certified in CIWQS. Continuing with maintenance inspection program of CCTV and flushing of mainlines, manhole inspections, lateral inspections, and FSE FOG inspections. Areas with on-going problems are addressed through maintenance or added to CIP Projects for rehabilitation and/or replacement. 2025 5SSO10893 5S 616 30-MAR-26 Municipal(Public) 92577 2 13 3 1 1 3 5 4 0 2 The one Grade I in Question #4.a is for one employee with a CWEA Certification for Electrical/Instrumentation Grade I. 4.6 300.5 61 21 12 5 0 1 100 28 15 57 0 0 0 100 27155 25869 Lower only 122.5 7 34 38 6 5 0 0 0 10 100 2 2 7 1 0 0 0 0 0 12 0 0 6 0 0 0 0 0 0 6 3.8 61.5 50.9 5A340108002 Sacramento Area Sewer District, 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP other agency Y N Folsom State Prison (CS) 5SSO11192 N California State Prison, Sacramento CS 5SSO11183 N/A 89 5 0 Y Y Root Intrusion After Root Intrusion, the next most common spill causes (in order) in 2025 were Debris, Pipe Structural Problem/Failure, and Fats, Oils, and Grease (FOG). Lower Lateral After Lower Lateral spills, the next most common failure points (in order) in 2025 were Gravity Mainlines, Manholes, and Upper Laterals. Spills in 2025 have been reported and certified in CIWQS. Continuing with maintenance inspection program of CCTV and flushing of mainlines, manhole inspections, lateral inspections, and FSE FOG inspections. Areas with on-going problems are addressed through maintenance or added to CIP Projects for rehabilitation and/or replacement. 2023 8SSO10560 8 616 28-MAR-24 Municipal(Public) 329000 8 69 10 7 8 4 3 9 0 0 Note 4e: There is no Grade V certification offered by CWEA for Collection System Maintenance and/or Plant Maintenance-Includes Mechanical Technologist and Electrical/Instrumentation. 8 813 6 76 12 4 1 1 100 48 0 19 33 0 0 100 78412 78403 Lower only 424 1 17 20 31 21 1 0 0 9 100 1 8 7 3 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 1 545 63 330117003 001, , Riverside, CA WWTP same agency Y N Jurupa Community Services Dist CS 8SSO10582 N Rubidoux CSD CS 8SSO11424 N Edgemont CSD CS 8SSO11502 70 0 12 Y Y Pipe Structural Problem/Failure - Installation Force Main None 22/23 & 23/24 CIP Programming ** $6.8 M - force main lining project, 1.9 miles of 24 force main lining (bid award March 12, 2024). ** $2.0 M - aged lift station replacements (in design) ** $1.9 M - lift station rehabilitation projects (underway) ** $2.1 M - priority pipeline replacements as determined via video inspection (bidding) 2024 8SSO10560 8 616 25-SEP-25 Municipal(Public) 329000 7 24 2 2 14 3 3 10 0 0 Note 4e: There is no Grade V certification offered by CWEA for Collection System Maintenance and/or Plant Maintenance-Includes Mechanical Technologist and Electrical/Instrumentation. 8 813 6 76 12 4 1 1 100 48 0 19 33 0 0 100 78412 78403 Lower only 424 3 12 25 39 20 1 0 0 0 100 1 8 7 3 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 1 519.7 106.2 8 330117003 001, , Riverside, CA WWTP same agency Y N Jurupa Community Services Dist CS 8SSO10582 N Rubidoux CS 8SSO11424 N Edgemont CS 8SSO11502 70 0 12 Y Y Vandalism (specify below) Largest spill over the reporting period was due to vandalism. Specifically trash and other debris deliberately deposited in the collection system. By count, the most frequent cause of spills (3 spills) was due to root intrusion. In both cases, the City has increased its CCTV capabilities to proactively identify problematic conditions so that cleaning crews can be redirected, as discovered, to those spots in an effort to prevent spills. Gravity Mainline In March of 2025 a Category 2 spill took place as a result of a homeless encampment depositing trash into a manhole. There is an ongoing investigation being conducted of the up and downstream lines to search for any more trash and debris build-up and clean the lines as necessary. The City of Riverside has several avenues through which system deficiencies are address. The City retains in-house repair capabilities as part of its collection system O&M program. These are supported by on-call contractors to address repairs and/or other trouble spots beyond in-house scope. Supplementing these, and in addition to the Sewer CIP program, the City's Sewer Engineering team provides direct support developing and managing projects to address capacity limitations or major system failures. For example, the Sewer Engineering team, in 2024 oversaw several capacity improvement projects along with the lining of the City's second-largest sewer force main at 2.6 miles and 24 diameter. 2025 8SSO10560 8 616 09-FEB-26 Municipal(Public) 329000 9 27 4 2 14 4 4 10 0 0 Note 4e: There is no Grade V certification offered by CWEA for Collection System Maintenance and/or Plant Maintenance (includes Mechanical Technologist and Electrical & Instrumentation). 11 813 7 76 12 4 1 0 100 32 4 14 50 0 0 100 77792 77736 Lower only 421.9 1 18 20 31 29 1 0 0 0 100 1 8 7 3 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 1 455.6 94.4 8 330117003 Regional Water Quality Control Plant, 5950 Acorn St Riverside, CA 92504 WWTP same agency N N Jurupa Community Services Dist CS 8SSO10582 N Rubidoux CS 8SSO11424 N Edgemont CS 8SSO11502 70 0 12 Y Y Vandalism (specify below) Largest spill over the reporting period (CY 2025) was due to vandalism. Lower Lateral By count, most frequent cause of spills was root intrusion in laterals. Other defects in laterals included FOG and rags. At this time, the City is not investigating any particular spill. However, the City is taking action to address the number of lateral spills seen in 2025. New Standard Operating Procedures (SOPs) have been added, and existing SOPs have been updated to better inspect and document findings of City owned laterals. Over the past several years, the City has increased CCTV efforts and also plans to increase lateral inspections specifically (2022 =32 miles, 2023 = 63 miles, 2024 = 106 miles). The City of Riverside plans to increase lateral inspections and documentation thereof. CY 2025 also had a record number of sewer infrastructure repairs completed, by both in-house crews and contractors, to improve performance of the collection system. The City will continue to boost both it's CCTV and Repair and Rehabilitation programs. 2023 5SSO10895 5S 616 02-APR-24 Municipal(Public) 5168 1 5 1 2 5 1 0 0 0 0 N/A 1 24 51 43 6 0 0 0 0 100 0 0 0 0 0 0 2461 0 None 0 0 42 27 17 7 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 10 2 3 5B030103001 001, , Jackson, CA WWTP same agency N N/A 2 0 1 N Y Debris-General N/A Gravity Mainline N/A N/A CCTV and Cleaning of entire system 2024 5SSO10895 5S 616 09-APR-25 Municipal(Public) 5168 2 2 2 2 5 1 0 0 0 0 N/A 1 24 51 43 6 0 0 0 100 100 0 0 0 0 0 100 2461 0 None 0 0 42 27 17 7 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 10 2.3 2.7 5B030103001 001, , Jackson, CA WWTP same agency N N/A 2 0 1 Y Y Debris-General N/A Gravity Mainline N/A None Quarterly Hot Spot Program, Capital Improvement projects, Routine CCTV and Cleaning of entire collection system 2025 5SSO10895 5S 616 09-MAR-26 Municipal(Public) 5168 2 2 2 2 5 2 0 0 0 0 N/A 1 24 51 43 6 0 0 0 100 100 0 0 0 0 0 100 2461 0 None 0 1 42 21 14 16 6 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 3 10 8 7.4 5B030103001 001, , Jackson, CA WWTP same agency N N/A 2 0 1 Y Y Debris-General Gravity Mainline None Quarterly Hotspot Program, Capital Improvement Projects, Routine CCTV and Cleaning of entire collection System 2023 8SSO10561 8 616 20-MAR-24 Municipal(Public) 200000 9 22 4 3 6 4 1 5 0 0 N/A 2 493 0 76 15 7 1 0 100 33 40 4 19 4 0 100 38300 88 None 2 20 10 30 30 10 0 0 0 0 100 1 2 3 2 0 0 0 0 0 57 0 2 3 1 0 0 0 0 0 43 2 340 20 R8-2017-49 WWTP City of San Bernardino - 399 Chandler Place, San Bernardino CA 922408 WWTP other agency Y N City of Loma Linda 8SSO010554 N East Valley Water District 8SSO010569 N/A 12 0 12 Y Y Debris-General Gravity Mainline None at this time. 3/20/2024 JJM System repairs and or upgrades. Implemented a yearly system cleaning turn around, maintenance hole inspection program, and hired a CCTV contractor to video inspect the gravity collection system. 2024 8SSO10561 8 616 15-DEC-25 Municipal(Public) 200000 9 22 4 3 6 4 1 5 0 0 N/A 2 493 0 76 15 7 1 0 100 33 40 4 19 4 0 100 38300 88 None 2 20 10 30 30 10 0 0 0 0 100 1 2 3 2 0 0 0 0 0 57 0 2 3 1 0 0 0 0 0 43 2 197.2 37 8 360114003 Margaret H Chandler WWRF, 399 Chandler Place, San Bernardino, ca 92408 WWTP same agency N N City of Loma Linda 8SSO010554 N/A 12 0 12 Y Y Debris-General N/A Gravity Mainline N/A None at this time. System repairs and or upgrades. Continue with system cleaning, MH inspection program, and CCTV inspection program. 2025 8SSO10561 8 616 26-MAR-26 Municipal(Public) 200000 2 22 3 5 4 6 2 6 0 0 N/A 2 492 0 76 15 7 1 0 100 33 4 19 4 0 0 100 38350 89 None 3 20 10 30 30 10 0 0 0 0 100 6 2 3 2 0 0 0 0 0 57 8 2 3 1 0 0 0 0 0 43 2 347 76.2 8SSO114003 WWTP City of San Bernardino, CA, 399 Chandler Place, San Bernardino, CA WWTP same agency Y N City of Loma Linda 8SSO010554 N East Valley Water District 8SSO010569 N/A 12 0 12 Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A There are no ongoing spills investigations RHH 3/17/2026 During the reporting year, the Sewer Collections Division implemented proactive measures to prevent sanitary sewer overflows (SSOs) and maintain compliance with WDR and SSMP requirements. Preventive maintenance was prioritized using CMMS data to target high-risk pipelines, increasing cleaning frequencies in areas prone to roots, grease, and debris. CCTV inspections were expanded to assess pipe conditions and identify defects. Trenchless rehabilitation, including CIPP spot repairs and Top Hat installations, was performed to address structural issues and reduce infiltration. A root control program was maintained, and FOG-prone areas were closely monitored. Staff received ongoing training to improve response readiness, and infrastructure repairs, including maintenance hole improvements, were completed. These efforts strengthened system reliability and reduced spill risk. 2023 5SSO10735 5F 616 31-DEC-25 Municipal(Public) 750 5 7 8 4 4 3 5 0 0 0 NA .5 6.4 40 10 50 0 0 0 0 0 0 0 0 0 0 0 1 1 None 0 0 2 17 63 18 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 5C220701002 5083 Foresta Road El Portal, CA 95318 WWTP same agency Y Y Yosemite Valley CS 5SSO10774 0 0 1 0 N Y Root Intrusion NA Other (specify below) NA NA NA 2024 5SSO10735 5F 616 31-DEC-25 Municipal(Public) 750 2 9 4 1 4 4 1 0 0 0 na .5 6.4 40 10 50 0 0 0 100 0 0 0 0 0 0 0 1 1 None 0 0 2 17 63 18 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 5C220701002 5083 Foresta Road El Portal, CA 95318 WWTP same agency Y Y Yosemite Valley CS 5SSO10774 0 0 1 0 N Y Root Intrusion na Other (specify below) na na na 2025 5SSO10735 5F 616 30-MAR-26 Municipal(Public) 750 1 7 2 2 11 5 5 0 0 0 na .5 6.4 40 10 50 0 0 0 100 0 0 0 0 0 0 0 1 1 None 0 0 2 17 63 18 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 5C220701002 5083 Foresta Road 95318 El Portal, CA WWTP same agency Y Y yosemite valley CS 5SSO10774 0 0 5 0 N N Root Intrusion na Other (specify below) Lift stations have failed during this year. They were corrected before any spill occurred. na na 2023 5SSO10896 5S 616 25-MAR-24 Municipal(Public) 4967 0 3 1 2 0 0 0 0 0 0 Please refer to the attached PDF with current (2024) Wastewater Operator Certification status and details for City of Lakeport Utilities Division staff. 4 33 50 45 5 0 0 0 100 75 20 5 0 0 0 100 1805 1814 Lower only 10 2 5 10 15 24 24 10 10 0 100 0 0 4 2 0 0 0 0 0 6 0 2 0 0 0 0 0 0 0 2 1 4 1 5SSO10896 City Of Lakeport CS, 225 Park Street, Lakeport, CA 95453 WWTP same agency N 1 0 0 Y Y Other (specify below) No major (Category 1) spills occurred in 2023. Three other spills were reported in 2023. Causes included debris/non-disposable wipes, root intrusion, and grease buildup related to a commercial restaurant. Lower Lateral NA None The City of Lakeport did not experience any Major SSOs in 2023. The lack of significant spills underscores the effectiveness of our ongoing maintenance and response protocols. Typical follow up activities in response to all SSOs include adding locations to the City’s quarterly wastewater collection system maintenance list and timely repairs of existing wastewater collection laterals and main lines. Replacement of laterals and main line sections is also completed as needed. All SSO locations are mapped in our GIS to track potential hot spots. Overall, the City's diligent efforts in sanitary sewer system maintenance and response have contributed to a year without Major SSOs in 2023, safeguarding public health and the environment. 2024 5SSO10896 5S 616 03-NOV-25 Municipal(Public) 4982 0 3 1 2 0 0 0 0 0 0 Please refer to the attached PDF, which contains the current 2025 Wastewater Operator Certification status and details for the city utility staff. 4 33 50 45 5 0 0 0 100 75 20 5 0 0 0 100 1805 1814 Lower only 10 2 5 10 15 24 24 10 10 0 100 0 0 4 2 0 0 0 0 0 6 0 2 0 0 0 0 0 0 0 2 1 4 1 5A170103001 Lakeport City WWTP, 795 Linda Lane, Lakeport, CA 95453 WWTP same agency N NA 1 0 0 Y Y Other (specify below) 2 spills total in 2024: cat 4: <4 gall caused by root intrusion cat 2: 1600 gal caused by power failure to pump station - repaired Pump Station - Power of the two spills in 2024: cat 4 failed at the lower lateral due to root intrusion cat 2 failed due to pump station power failure None In addition to routine annual line inspection and cleaning by utility staff approx 4600' of sewer main has been replaced. 2025 5SSO10896 5S 616 26-MAR-26 Municipal(Public) 5085 0 3 1 2 0 0 0 0 0 0 All operators holding certification for the City of Lakeport Municipal Sewer District's sanitary sewer system are certified through the California State Water Resources Control Board (SWRCB). Current certifications consist of: two (2) Grade I three (3) Grade II One (1) additional operator is enrolled in and holds a valid Operator-in-Training (OIT) certificate. System operators hold no certifications outside the SWRCB grading system. 2.3 30.2 60 17 12 3 0 8 100 28 67 5 0 0 0 100 1521 1534 Lower only 10 2 3 30 26 31 0 0 0 8 100 0 1 4 0 0 0 0 0 2 7 0 1 0 0 0 0 0 0 0 1 1 1 1 5A170103001 Lakeport City WWTP, 795 Linda Lane, Lakeport, CA 95453 WWTP same agency Y N NW Regional Waste Disp Facility 5A170104001 NA - 1 only 1 2 1 Y Y Other (specify below) 4 spills in 2025- Cat 1 (1) = Construction Diversion Cat 3 (1) = Roots Cat 4 (2) = Roots (1) FOG (1) Other (specify below) Failure Points = Manhole (1) Lower Lateral (1) Clean Out (2) None- all 2025 investigations resolved During calendar year 2025, the City completed the following actions to address system deficiencies: (1) continued CCTV inspection of gravity mains and laterals using City-owned equipment, with defect data used to prioritize rehabilitation and replacement activities; (2) conducted smoke testing to identify open cleanouts, leaking manholes, and illicit connections contributing to infiltration and inflow; and (3) completed an audit of the Sewer System Management Plan (SSMP), with findings incorporated into SSMP Revision 4, currently in progress and targeted for CIWQS certification on or before by May 2, 2026. The City also maintains a quarterly cleaning program for identified problem mains and conducts routine lift station inspections and maintenance. 2023 5SSO10897 5S 616 22-MAR-24 Municipal(Public) 12278 4 5 1 1 6 1 0 0 0 0 N/A 9 32 24 62 14 0 0 0 100 42 5 53 0 0 0 100 3437 3437 Lower only 19 0 35 50 10 0 0 0 0 5 100 1 5 2 0 0 0 0 0 0 8 0 1 0 0 0 0 0 0 0 1 0 10 0 5B390104001 Manteca Wastewater Quality Control Facility; 2450 West Yosemite Avenue, Manteca, CA 95337 WWTP other agency N 0 1 0 Y Y Debris-Rags N/A Gravity Mainline N/A None. No major system deficiencies were identified during 2023. 2024 5SSO10897 5S 616 27-FEB-25 Municipal(Public) 12278 4 5 1 1 6 1 0 0 0 0 N/A 7.7 30.5 25 58 17 0 0 0 100 33 3 64 0 0 0 100 3356 3356 Lower only 19 0 33 23 6 0 0 0 0 38 100 1 5 2 0 0 0 0 0 0 8 0 1 0 0 0 0 0 0 0 1 0 5.1 0 5B390104001 City of Manteca WW Quality Control Facility, 2450 West Yosemite Manteca, CA, 95337 WWTP other agency N 0 1 0 Y Y Other (specify below) Debris-General / Wipes and FOG. Manhole N/A None - no ongoing spill investigations. Increased sewer flushing and cleaning. Providing additional Education and Outreach to residents regarding FOG. 2025 5SSO10897 5S 616 31-MAR-26 Municipal(Public) 11579 0 8 1 1 7 1 0 0 0 0 N/A 7.7 37.9 28 47 25 0 0 0 100 33 3 64 0 0 0 100 3360 3360 Lower only 19 0 33 23 6 0 0 0 0 38 100 1 5 2 0 0 0 0 0 0 8 0 1 0 0 0 0 0 0 0 1 0 3.5 0 5B390104001 Manteca Water Quality Control Facility, 2450 West Yosemite Avenue, Manteca, CA 95337 WWTP other agency N 0 1 0 Y Y Other (specify below) Non, no spills occurred. Other (specify below) Non, no spills occurred. Non, no spills occurred. Increased sewer flushing and cleaning 2023 8SSO10562 8 616 02-APR-24 Municipal(Public) 55470 1 6 1 1 2 6 1 0 0 0 1 125 10 70 20 0 0 0 100 100 0 0 0 0 0 100 14871 0 None 0 20 20 20 10 10 10 5 5 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 66 13 8sso10617 23650 Hemlock Ave., Moreno Valley, 23650 Hemlock Avenue, Moreno Valley, CA 92557 WWTP other agency N 0 0 1 Y Y Other (specify below) No major spills Other (specify below) NO failure points None as of right now Repairs are made when needed, routine maintenance 2025 8SSO10562 8 616 23-MAR-26 Municipal(Public) 55200 0 4 1 1 1 6 1 0 0 0 CWEA 1 130 10 70 20 0 0 0 100 100 0 0 0 0 0 100 15244 0 None 0 20 20 20 10 10 10 5 5 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 74 14 8sso10532 San Jacinto Valley Regional Water Reclamation Facility 770San 770 WWTP other agency N 0 0 1 Y Y Other (specify below) none Other (specify below) none none Repairs made as needed. Continual routine maintenance. 2023 5SSO10898 5S 616 27-MAR-24 Municipal(Public) 9280 4 0 0 1 0 0 0 0 0 0 None 5 27 33 49 19 1 0 0 100 16 0 85 0 0 0 100 2598 9 None 0 0 41 21 12 26 0 0 0 0 100 0 3 2 0 1 0 0 0 0 6 0 0 0 1 0 0 0 0 0 1 0 17 1 5SSO10898 City Of Live Oak CS, 9955 Live Oak Boulevard, Live Oak, CA 95953 SSS same agency N 0 2 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline none Continue to jet sewer lines, inspections of suspected bad sections of piping and repair of those sewer lines. 2024 5SSO10898 5S 616 22-SEP-25 Municipal(Public) 9280 1 2 1 1 0 0 0 0 0 0 4.9 25.1 33 49 19 1 0 0 100 16 0 85 0 0 0 100 2598 9 None 0 0 41 21 12 26 0 0 0 0 100 0 3 2 0 1 0 0 0 0 6 0 0 0 1 0 0 0 0 0 1 0 5 0 5SSO10898 City Of Live Oak CS, 9955 Live Oak Boulevard, Live Oak, CA 95953 WWTP same agency N 0 2 0 Y Fats, Oil and Grease (FOG) Gravity Mainline None. Perform collection system cleaning/jetting. 2025 5SSO10898 5S 616 13-MAR-26 Municipal(Public) 9280 2 3 1 1 0 0 0 0 0 0 4.9 25.1 33 49 19 1 0 0 100 16 0 85 0 0 0 100 2598 9 None 0 0 41 21 12 26 0 0 0 0 100 0 3 2 0 1 0 0 0 0 6 0 0 0 1 0 0 0 0 0 1 0 5 0 5SSO10898 City Of Live Oak CS, 9955 Live Oak Boulevard, Live Oak, CA 95953 WWTP same agency N 0 2 0 Y Y Debris from Lateral Gravity Mainline None Cleaning, jetting sewer main lines. 2023 8SSO10564 8 616 17-APR-24 Municipal(Public) 78841 3 3 1 1 4 2 0 1 0 1 None. 0 258 1 84 11 1 0 3 100 0 0 0 0 0 0 0 18952 0 None 0 11 34 37 11 7 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 141 3 SSO20042 Montclair City CS, , Montclair, CA 91763 WWTP other agency SSO10580 Inland Empire Utilities Agency WWTP same agency N None 0 0 0 Y Y Debris-Rags Manhole No ongoing inspections at the present time. Collection system is regularly inspected by field maintenance staff, who coordinate with the City's Environmental Compliance Division that inspects all commercial and industrial facilities that discharge into the Upland Sewer Collection System. Collection system is regularly inspected by field maintenance staff, who coordinate with the City's Environmental Compliance Division that inspects all commercial and industrial facilities that discharge into the Upland Sewer Collection System. 2024 8SSO10564 8 616 01-APR-25 Municipal(Public) 78699 1 5 1 1 2 1 2 2 0 0 N/A 0 258 1 84 11 1 0 3 100 0 0 0 0 0 0 0 18952 0 None 0 11 34 37 11 7 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 156 7.6 SSO10580 Inland Empire Utilities Agency WWTP other agency N 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance Contractor caused during Public Right-of-way projects (i.e. installation of fiberoptic cable in the City Right-of-way. Gravity Mainline Gravity Mains and manholes have been the areas that have been impacted by damage caused by contractors. No ongoing spill investigations at present. Rehab/replacement of brick manholes during all construction /Capital Improvement Projects in the right-of-way where sewer is impacted. Also, maintenance of areas of concern ( hotspots ) are maintained at a minimum of quarterly intervals. 2023 5SSO10900 5S 616 19-MAR-24 Municipal(Public) 15769 0 4 1 1 2 0 0 0 0 1 N/A 4 61 10 60 25 5 0 0 100 30 45 25 0 0 0 100 5065 0 None 0 0 30 30 15 15 10 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 3 0 0 0 0 0 0 0 3 1 2 0 5B390105001 Ripon Industrial & Domestic TP, 1220 Vera Avenue, Ripon, CA 95366 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills in 2023 Pump Station - Power N/A N/A N/A 2024 5SSO10900 5S 616 13-MAR-25 Municipal(Public) 15741 0 4 1 1 2 0 0 0 0 1 N/A 4 61 10 60 25 5 0 0 100 30 45 25 0 0 0 100 5074 0 None 0 0 30 30 15 15 10 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 3 0 0 0 0 0 0 0 3 1 2 .1 5B390105001 Ripon Industrial & Domestic TP, 1220 Vera Avenue, Ripon, CA 95366 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills in 2024 Pump Station - Power N/A N/A N/A 2025 5SSO10900 5S 616 23-MAR-26 Municipal(Public) 15753 0 4 1 1 2 0 0 0 0 1 N/A 4 61 10 60 25 5 0 0 100 30 45 25 0 0 0 100 4983 0 None 0 0 30 30 15 15 10 0 0 0 100 0 1 4 0 0 0 0 0 0 5 0 3 0 0 0 0 0 0 0 3 1 2 0 5B390105001 Ripon Industrial & Domestic TP, 1220 Vera Avenue, Ripon, CA 95366 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills in 2025 Pump Station - Power N/A N/A N/A 2023 8SSO10565 8 616 25-MAR-24 Municipal(Public) 169868 6 18 2 1 0 1 0 0 0 0 NA 16 430 3 83 13 1 0 0 100 57 10 33 0 0 0 100 40646 0 None 0 1 5 47 15 6 0 0 0 26 100 0 2 1 2 0 0 0 0 0 5 0 3 7 0 0 0 0 0 0 10 2 115 96 8SSO10565 Water Reclamation Facility No.1, 2205 Railroad St., Corona WWTP same agency 8SSO10565 Water Reclamation Facility No.2, 650 E. Harrison St., Corona WWTP same agency 8SSO10565 Water Reclamation Facility No.3, 3997 Temescal Canyon Rd., Corona WWTP same agency Y N City of Norco 8SSO10556 NA 19 6 5 Y Y Other (specify below) Debris-General, Fats, Oil and Grease, Root Intrusion, Plant Maintenance activities Other (specify below) Force Main, Gravity Mainline, and Manhole None. Cleaning activities were investigated and the areas were videoed to find the cause of the spills and determined if additional maintenance is necessary. 2024 8SSO10565 8 616 29-DEC-25 Municipal(Public) 169868 6 18 2 2 0 1 0 0 0 0 N/A 16 430 3 83 13 1 0 0 100 57 10 33 0 0 0 100 41481 0 None 0 1 5 47 15 6 0 0 0 26 100 0 2 1 2 0 0 0 0 0 5 0 3 7 0 0 0 0 0 0 10 2.3 93.7 88.2 8 330108001 Water Reclamation Facility #1 2205 Railroad Street Corona CA 92880 WWTP same agency 8 332181001 Corona WWRF #2, 650 Harrison Street, Corona, CA 92879 WWTP same agency 8 332476001 Water Reclamation Facility #3 3997 Temescal Canyon Rd Corona CA 92883 WWTP same agency Y N City of Norco 8SSO10556 N/A 19 6 5 Y Y Debris-General FOG, Root intrusion Gravity Mainline Manhole N/A Cause of spills are investigated by CCTV to determine if additional maintenance is necessary. 2025 8SSO10565 8 616 17-MAR-26 Municipal(Public) 169868 4 20 4 2 1 0 0 0 0 0 0 21 430 2 83 13 1 1 0 100 49 8 21 22 0 0 100 41481 0 None 0 1 4 49 17 6 0 0 0 23 100 0 2 1 2 0 0 0 0 0 5 0 3 7 0 0 0 0 0 0 10 2 68.5 66.1 8 330108001 Water Reclamation Facility #1 2205 Railroad Street Corona CA 92880 WWTP same agency 8 332181001 Corona WWRF #2, 650 Harrison Street, Corona, CA 92879 WWTP same agency 8 332476001 Water Reclamation Facility #3 3997 Temescal Canyon Rd Corona CA 92883 WWTP same agency Y N City of Norco 8SSO10556 N/A 20 7 8 Y Y Debris-General FOG, rags Gravity Mainline Manhole N/A Cause of spills are investigated by CCTV to determine if additional maintenance is necessary. 2026 5SSO20086 5F 616 10-APR-26 Municipal(Public) 17256 1 4 1 1 0 0 0 0 0 0 Employees under City of Kerman's Water Division are either Water Distribution or Waste Water certified by State Water Resources Control Board. 0 47.4 15 75 9 1 0 0 100 100 0 0 0 0 0 100 224 224 Upper and Lower 47.4 6 34 17 8 0 0 0 0 35 100 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2 0 5 10 5D100108001 Kerman WWTF, 15480 Church , Kerman, CA 93630 WWTP same agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A NA 0 0 0 N N Pump Station Failure - Mechanical N/A Pump Station - Mechanical N/A N/A Pumps were repaired and replaced as needed. Preventative maintenance is performed weekly for sewer lateral checks. 2023 9SSO10700 9 616 27-MAR-24 Municipal(Public) 41000 4 9 1 1 8 3 1 0 0 0 All certified through CWEA. 3 93 3 83 9 4 0 1 100 5 1 28 60 0 6 100 6728 0 None 0 3 17 42 38 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3 120 15 Unknown Encina Wastewater Authority, 6200 Avenida Encinas, Carlsbad, CA 92011 WWTP other agency 9SSO10660 City of Vista, Vista, CA SSS other agency Y N City of Carlsbad 9SSO11209 Y City of Vista 9SSO10660 N Vallecitos Municipal Water District Unknown NA 1 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Contractor broke our line open while digging. Gravity Mainline NA None Encouraged contractor to obtain sewer plans before digging. 2025 9SSO10700 9 616 30-MAR-26 Municipal(Public) 41200 3 11 1 1 7 5 1 0 0 0 All certified through CWEA. 3 93 3 83 9 4 0 1 100 5 1 28 60 0 6 100 6737 0 None 0 3 17 42 38 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2.1 87.2 20.9 9371002009 Encina Wastewater Authority, 6200 Avenida Encinas, Carlsbad, CA 92011 WWTP other agency Y N City of Carlsbad 9SSO11209 Y City of Vista 9SSO10660 N Vallecitos Municipal Water District Unknown NA 5 0 0 Y Y Other (specify below) Buena Sanitation District did not have any public spills in 2025. Other (specify below) None None Planning CIPP lining for pipes that cross creeks. 2023 9SSO10699 9 616 23-JAN-24 Municipal(Public) 21504 1 5 2 1 0 1 0 2 0 1 N/A 2 51 0 85 14 1 0 0 100 19 19 62 0 0 0 100 8881 17 Lower only 67 0 6 94 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 10 5 9SSO11546 Santa Rosa Regional Resources Authority Collection System, , Murrieta, CA 92562 WWTP other agency N N N/A N/A N/A 0 0 0 Y Y Other (specify below) No sewer spills encountered in 2023 Other (specify below) No infrastructure failures in 2023 No sewer spills encountered in 2023 There were no deficiencies in the system in 2023 2024 9SSO10699 9 616 30-JAN-25 Municipal(Public) 21504 1 5 2 1 0 2 0 2 0 1 N/A 2 51 0 85 14 1 0 0 100 19 19 62 0 0 0 100 8881 17 Lower only 67 0 6 94 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 10 5 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP other agency N N N/A N/A N/A 0 0 0 Y Y Other (specify below) No sewer spills encountered in 2024 Other (specify below) No infrastructure failures in 2024 No sewer spills encountered in 2024 There were no deficiencies in the system in 2024 2025 9SSO10699 9 616 10-FEB-26 Municipal(Public) 21504 0 6 2 1 0 2 0 2 0 1 N/A 2 51 0 85 14 1 0 0 100 19 19 62 0 0 0 100 8881 17 Lower only 67 0 6 94 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 22 5 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 11 1 0 Y Y Other (specify below) No sanitary sewer overflows occurred during the reporting year. Other (specify below) No system infrastructure failure points were identified, as no sanitary sewer overflows occurred in 2025. No sanitary sewer overflows occurred during the reporting year. No sanitary sewer overflows occurred during the reporting year. 2023 8SSO10569 8 616 12-FEB-26 Municipal(Public) 106000 2 4 1 1 4 1 0 1 0 0 0 267 12 70 14 3 1 0 100 0 0 0 0 0 0 0 20500 0 Lower only 0 1 7 23 27 23 0 0 0 19 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 140 63 CA3690026 Sterling Natural Resource Center 25376 5th street San Bernardino CA 92410 WWTP same agency N 0 0 9 N Y Root Intrusion Gravity Mainline None No major spills in 2023. We have an aggressive maintenance program of cleaning and CCTV. We perform annual root control maintenance in needed areas. 2024 8SSO10569 8 616 12-FEB-26 Municipal(Public) 106000 2 4 1 1 4 1 0 1 0 0 0 267 12 70 14 3 1 0 100 0 0 0 0 0 0 0 20800 20800 Lower only 0 1 7 23 27 23 0 0 0 19 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 125 60 CA3690026 Sterling Natural Resource Center 25376 5th street San Bernardino CA 92410 WWTP same agency N 0 0 9 N Y Pump Station Failure - Power Pump Station - Power None In June of 2024 due to power fail and back up generator fail at new wastewater treatment facility a large spill occurred. Corrective action was ensuring proper diesel back up generator transfers power correctly. 2025 8SSO10569 8 616 18-FEB-26 Municipal(Public) 106000 2 4 1 1 4 1 0 1 0 0 0 267 12 70 14 3 1 0 100 0 0 0 0 0 0 0 20900 0 Lower only 0 1 7 23 27 23 0 0 0 19 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 123 50 8 300112001 Groundwater Replenishment System - Advanced WTF, 18700 Ward Street, Fountain Valley, CA 92708-6930 WWTP same agency N 0 0 9 N Y Root Intrusion Gravity Mainline None No major spill in 2025. We have an aggressive maintenance program, cleaning and CCTV. We perform annual root control maintenance as needed. 2023 9SSO10698 9 616 19-APR-24 Municipal(Public) 21468 0 8 2 2 0 5 4 1 5 2 N/A 5.2 28.6 10 15 45 30 0 0 100 7 93 0 0 0 0 100 1919 1919 Lower only 8 1 10 15 44 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 6.5 20.3 9SSO10698 Santa Maria CS, 105 Earlham Street, Ramona, CA 92065 SSS same agency Y N Ramona Airport N/A N Ramona Terrace N/A N/A 12 3 1 Y Y Other (specify below) Spills have occurred through customer laterals due to root intrusion, and inappropriate discharging of wipes, fats, oils, and grease. Other (specify below) Offset joints from the upper lateral to the lower lateral. N/A Offset joints and pipe cracks are repaired as needed to prevent future blockages and lateral spills. Roots are treated and customers are notified. 2024 9SSO10698 9 616 29-DEC-25 Municipal(Public) 21468 0 8 2 2 0 3 4 1 0 2 N/A 5.2 28.6 4 77 13 6 0 0 100 7 93 0 0 0 0 100 1885 1885 Lower only 7.8 1 10 15 44 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 33.2 29.2 9 000000077 Santa Maria CS, 260 Sawday St. Ramona, Ca. 92065 WWTP same agency Y N Ramona Airport N/A N Ramona Terrace N/A N/A 12 3 1 Y Y Other (specify below) Spills that have occurred have been related to sewer laterals due to inappropriate discharging wipes and FOG and root intrusion. Other (specify below) Lateral offset joints due to customer pipe sagging at the connection to the district owned lower lateral. N/A Offset joints are repaired as needed and laterals are treated for roots to help prevent blockages. 2025 9SSO10698 9 616 18-MAR-26 Municipal(Public) 21468 1 7 2 2 0 2 1 1 0 2 5.2 28.6 4 77 13 6 0 0 100 7 93 0 0 0 0 100 1963 1963 Lower only 8.1 1 10 15 44 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 74.7 52.3 9 000000077 Santa Maria CS, 260 Sawday St. Ramona, Ca. 92065 WWTP same agency Y N Ramona Airport N/A N Ramona Terrace N/A N/A 32 7 1 Y Y Debris-wipes/Non-disposables Spills that have occurred have mainly been related to inappropriate discharging of wipes, and FOG down sewer laterals. Offset lateral at the property line connection points have also been a cause of private lateral spills. Upper Lateral N/A When a lateral is found with an offset joint at the lower lateral connection point, a repair is made to help prevent future spills. 2023 5SSO10737 5F 616 27-MAR-24 Municipal(Public) 40000 3 1 1 1 0 0 0 0 0 1 5 104 70 20 10 0 0 0 100 100 0 0 0 0 0 100 18000 0 None 0 2 8 20 30 40 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 37 8 5d150105001 Kern Sanitation Authority WWTF, Hwy 58 & Quantico , Bakersfield, CA WWTP same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) grease build up in line. Gravity Mainline NA NA 2024 5SSO10737 5F 616 18-FEB-26 Municipal(Public) 40000 3 2 1 1 2 0 0 0 0 2 5 125 70 20 10 0 0 0 100 100 0 0 0 0 0 100 18000 0 None 0 2 8 20 30 40 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 110 14 5d150105001 Kern Sanitation Authority WWTF, Hwy 58 & Quantico , Bakersfield, CA WWTP same agency 5d150100001 Bakersfield WWTP #2, 1700 Planz , Bakersfield, CA 93307 WWTP other agency Y Y bakersfield city wwtp2 sewer 5SSO10717 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA 2025 5SSO10737 5F 616 18-FEB-26 Municipal(Public) 40000 0 4 1 1 1 0 0 0 0 3 5 125 70 20 10 0 0 0 100 100 0 0 0 0 0 100 18000 0 None 0 2 8 20 30 40 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 98 16 5d150105001 Kern Sanitation Authority WWTF, Hwy 58 & Quantico , Bakersfield, CA WWTP same agency 5d150100001 Bakersfield WWTP #2, 1700 Planz , Bakersfield, CA 93307 WWTP other agency Y Y bakersfield city wwtp2 sewer 5SSO10717 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA we replace 2000 ft of damaged pipe annually to keep up with aging infrastructure. 2025 5SSO10738 5F 616 18-MAR-26 Municipal(Public) 19057 0 5 2 1 4 2 0 0 0 8 NA 0 35.4 37 605 221 104 0 33 100 0 0 0 0 0 0 0 3100 0 None 0 1 5 8 86 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10 10 R5-2022-0059 6525 East Bear Mountain Blvd, Lamont CA 93241 WWTP same agency N NA 0 0 0 Y Other (specify below) none Gravity Mainline some sagging locations-hotspots investigate as needed all hot spot locations are clean every 6 to 12 months 2023 5SSO10741 5F 616 28-MAR-24 Municipal(Public) 2370 0 0 1 1 0 1 0 0 0 2 N/A 1 5 74 20 5 0 0 0 99 1 0 0 0 0 0 1 387 2 None 0 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 2 1 5D150114001 Lost Hills WWTF, 14801 Woodward Ave , Lost Hills, CA 93249 WWTP same agency N 3 1 0 Y Y Other (specify below) N/A Pump Station - Power Total of 4 Power outages for 2023 N/A WWTF has in place an emergency pond that's gravity feed when power outages occur. 2024 5SSO10741 5F 616 26-FEB-26 Municipal(Public) 2370 0 0 0 1 0 1 0 0 0 1 N/A 1 5 74 20 5 0 0 0 99 1 0 0 0 0 0 1 387 2 None 0 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 1 0 5D150114001 Lost Hills WWTF, 21331 Hwy 46 , Lost Hills, CA 93249 WWTP same agency N 3 1 0 Y Y Other (specify below) No spills. Pump Station - Power N/A N/A 2025 5SSO10741 5F 616 27-MAR-26 Municipal(Public) 2370 0 0 1 1 0 1 0 0 0 1 N/A 1 5 74 20 5 0 0 0 99 1 0 0 0 0 0 1 387 1 Upper and Lower 0 5 0 95 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 1 0 5D150114001 Lost Hills WWTF, 21331 Hwy 46 , Lost Hills, CA 93249 WWTP same agency N 3 1 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 5SSO10742 5F 616 07-NOV-25 Municipal(Public) 1300 1 2 0 0 0 0 0 0 0 0 N/A 1 15 13 32 42 12 0 0 99 1 0 0 0 0 0 1 479 4 None 0 0 3 10 87 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 8 0 5SSO10742 Malaga CWD CS, 3580 South Frank Street, Fresno, CA 93725 WWTP same agency N N N/A 0 0 0 N Y Debris-General N/A Pump Station - Controls N/A N/A N/A 2024 5SSO10742 5F 616 12-NOV-25 Municipal(Public) 1300 1 2 0 0 0 0 0 0 0 0 N/A 1 15 13 32 42 12 0 0 99 1 0 0 0 0 0 1 479 4 None 0 0 3 10 87 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 9 0 5D100124001 Malaga CWD CS, 3749 S. Maple Ave. Fresno, CA 93725 WWTP same agency N N N/A 0 0 0 N Y Fats, Oil and Grease (FOG) Pump Station - Mechanical N/A N/A N/A 2023 5SSO10744 5F 616 20-MAR-24 Municipal(Public) 2000 2 1 4 16 0 0 0 0 0 0 0 14 55 30 10 5 0 0 100 0 0 0 0 0 0 0 800 800 Lower only 15 20 0 40 5 35 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 15 3 5C221012001 Mariposa DP 001, , CA WWTP same agency N N/A 4 0 0 Y Y Debris-General None Manhole None None Replaced 4,000 feet of 6-inch clay pipe with 8-inch PVC. 2024 5SSO10744 5F 616 06-MAR-25 Municipal(Public) 2000 0 3 2 1 0 0 0 0 0 0 N/A 0 14 55 30 10 5 0 0 100 0 0 0 0 0 0 0 724 724 Lower only 3 20 0 40 5 35 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 15 1 5C221012001 Mariposa DP 001, , CA WWTP same agency N N N/A 4 0 0 Y Y Debris from Lateral Flushable wipes are becoming in increasing problem. Manhole N/A None Monthly cleaning or known problem areas in the collection system. 2025 5SSO10744 5F 616 05-MAR-26 Municipal(Public) 2000 0 3 1 1 0 0 0 0 0 0 n/a 0 14 55 30 10 5 0 0 100 0 0 0 0 0 0 0 724 724 Lower only 3 20 0 40 5 35 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 15 .5 5C221012001 Mariposa DP 001, , CA WWTP same agency N n/a 4 0 0 Y Y Debris from Lateral Flushable wipes Manhole n/a None Routine monthly cleaning of problem areas. 2025 5SSO10746 5F 616 20-JAN-26 Municipal(Public) 191 0 4 1 1 0 3 1 2 0 0 CWEA 1 1 100 0 0 0 0 0 0 100 0 0 0 0 0 0 91 74 Lower only 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 5C550106003 Mi-Wuk Village WW System, 24550 Tramway Road, Sonora, CA 95370 SSS same agency N N N/A N/A N/A 0 0 0 Y Y Root Intrusion N/A Manhole N/A N/A Adjusted cleaning frequency of problem area. 2023 9SSO10697 9 616 29-MAR-24 Municipal(Public) 203000 8 16 4 3 19 14 14 6 0 0 N/A 150 624 68 8483 1097 227 125 0 100 1294 1099 7331 185 92 0 100 65250 0 None 0 3 274 547 173 0 2 0 0 0 100 0 4 7 1 0 0 0 0 0 12 1 0 6 1 0 0 0 0 0 8 0 314 107 9301OO5772 Chiquita Water Reclamation Plant 28793 Ortega Highway S.J.C., CA. 92675 WWTP same agency 9301OO5772 Nichols Water Reclamation Plant 33608 Ortega Highway S.J.C, CA. 92675 WWTP same agency 93NNA000193 JB Latham Treatment Plant 34156 Del Obispo Dana Point CA 92629 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 6 1 6 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Manhole N/A N/A We have 29 Smart covers in vulnerable areas in our sewer system. We put locking sewer lids where people have open lid and dropped debris in . We clean every line in the system in a 2 year span. 2024 9SSO10697 9 616 02-JAN-26 Municipal(Public) 203000 10 16 4 3 20 16 16 6 0 0 28 629 68 8483 1097 227 125 0 100 1294 1099 7331 185 92 0 100 65250 0 None 0 3 274 547 173 0 2 0 0 0 100 0 4 7 1 0 0 0 0 0 12 1 0 6 1 0 0 0 0 0 8 0 323.4 89 9301OO5771 Chiquita Water Reclamation Plant 28793 Ortega Highway S.J.C., CA. 92675 WWTP same agency 9301OO5772 Nichols Water Reclamation Plant 33608 Ortega Highway S.J.C, CA. 92675 WWTP same agency 93NNA000193 JB Latham Treatment Plant 34156 Del Obispo Dana Point CA 92629 WWTP other agency 9 000000175 N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 6 1 6 Y Y Pump Station Failure - Mechanical Power Failure and Generator issue. Pump Station - Mechanical N/A Generators are tested every two weeks to ensure they are operational 2025 9SSO10697 9 616 31-MAR-26 Municipal(Public) 208865 10 16 4 3 59 34 19 10 0 0 N/A 28 657 68 8483 1097 227 125 0 100 1294 1099 7331 185 92 0 100 65141 19 Upper and Lower .1 3 274 547 173 68 2 0 0 0 100 0 4 7 1 1294 0 0 0 0 12 0 0 6 1 1294 0 0 0 0 8 0 260 61.6 9301OO5771 Chiquita Water Reclamation Plant 28793 Ortega Highway S.J.C., CA 92675 WWTP same agency 9301OO5772 Nichols Water Reclamation Plant 33608 Ortega Highway S.J.C., CA 92675 WWTP same agency 93NNA000193 JB Latham Treatment Plant 34156 Del Obispo Dana Point CA 92626 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 6 1 6 Y Y Debris-General N/A Manhole N/A Proactive CIP program to R&R manholes identified as high risk and in need of immediate repair. 2024 5SSO20046 5F 616 30-DEC-25 Municipal(Public) 345 0 7 2 1 0 0 0 0 0 0 1 SE has Grade 4 CAWRCB Wastewater Treatment Plant Operator Certification 1 SE has Grade 3 CAWRCB Wastewater Treatment Plant Operator Certification 2 SE has Grade 2 CAWRCB Wastewater Treatment Plant Operator Certification .2 1.2 70 20 10 0 0 0 100 20 80 0 0 0 0 100 89 89 Upper and Lower .3 100 100 100 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 2 50 50 50 50 0 0 0 0 0 0 0 0 .2 5C551001001 Moccasin Powerhouse, Highway 49 , Moccasin, CA 95321 WWTP same agency N N/A 0 0 0 Y Y Debris-General No recent spills Pump Station - Power N/A None Replacement of failed equipment as needed 2024 5SSO20046 5F 616 30-DEC-25 Municipal(Public) 345 0 7 2 1 0 0 0 0 0 0 1 SE has Grade 4 CAWRCB Wastewater Treatment Plant Operator Certification 1 SE has Grade 3 CAWRCB Wastewater Treatment Plant Operator Certification 2 SE has Grade 2 CAWRCB Wastewater Treatment Plant Operator Certification .2 1.2 70 20 10 0 0 0 100 20 80 0 0 0 0 100 89 89 Upper and Lower .3 100 100 100 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 2 50 50 50 50 0 0 0 0 0 0 0 0 .2 5C551001001 Moccasin Powerhouse, Highway 49 , Moccasin, CA 95321 WWTP same agency N NA 0 0 0 Y Y Debris-General No recent spills Pump Station - Power NA None Replacement of failed equipment as needed 2025 5SSO20046 5F 616 03-MAR-26 Municipal(Public) 345 0 7 2 1 0 0 0 0 0 0 1 SE has Grade 4 CAWRCB Wastewater Treatment Plant Operator Certification 1 SE has Grade 3 CAWRCB Wastewater Treatment Plant Operator Certification 2 SE has Grade 2 CAWRCB Wastewater Treatment Plant Operator Certification .2 1.2 70 20 10 0 0 0 100 20 80 0 0 0 0 100 89 89 Upper and Lower .3 100 100 100 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 2 50 50 50 50 0 0 0 0 0 0 0 0 .2 5C551001001 Moccasin Powerhouse, Highway 49 , Moccasin, CA 95321 WWTP same agency N N/A 0 0 0 Debris-General Pump Station - Power no reportable spills this year Replacement of failed equipment as needed 2023 9SSO10696 9 616 05-JAN-26 Municipal(Public) 3550 0 3 1 1 1 0 0 2 0 1 NA 6 79 10 90 0 0 0 0 100 100 0 0 0 0 0 100 1773 0 None 0 0 15 50 21 10 4 0 0 0 100 0 0 2 0 0 0 0 0 0 2 3 0 12 0 0 0 0 0 0 15 5 26.6 5 9 000000899 Santa Fe Valley WTP, 9062 Maranatha Drive, San Diego, CA 92127 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA 14 3 0 N Y Debris-General NA Gravity Mainline NA NONE NONE 2024 9SSO10696 9 616 05-JAN-26 Municipal(Public) 3550 0 3 1 1 1 0 0 2 0 1 NA 6 79 10 90 0 0 0 0 100 100 0 0 0 0 0 100 1773 0 None 0 0 15 50 21 10 4 0 0 0 100 0 0 2 0 0 0 0 0 0 2 3 0 12 0 0 0 0 0 0 15 5 36.6 7 9 000000899 Santa Fe Valley WTP, 9062 Maranatha Drive, San Diego, CA 92127 WWTP same agency N NA NA NA NA NA NA NA NA NA NA 14 3 0 Debris-General NA Gravity Mainline NA NONE NA 2023 9SSO10695 9 616 19-APR-24 Municipal(Public) 10395 1 7 1 2 0 5 2 1 1 2 N/A .5 43 1 89 10 0 0 0 100 100 0 0 0 0 0 100 5194 5194 Lower only 25 1 1 24 74 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 44 11.6 9SSO10695 San Vicente Treatment Plant CS, 105 Earlham Street, Ramona, CA 92065 WWTP same agency Y N Par 28 Villas N/A N/A 8 0 0 Y Y Other (specify below) Spills have occurred through customer sewer laterals due to root intrusion and inappropriate discharging of wipes, fats, oils, and grease. Other (specify below) Offset joints from the upper lateral to the lower lateral. N/A Offset joints and pipe cracks are repaired as needed to prevent future blockages and lateral spills. Roots are treated and customers are notified. 2024 9SSO10695 9 616 26-DEC-25 Municipal(Public) 10395 0 8 1 2 0 5 2 1 1 2 N/A .5 43 1 89 10 0 0 0 100 100 0 0 0 0 0 0 5207 5207 Lower only 25 1 1 24 74 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 23.1 10 9 000000076 San Vicente Treatment Plant CS, 22758 San Vicente Rd. Ramona, Ca. 92065 WWTP same agency Y N Par 28 Villas N/A N/A 8 0 0 Y Y Other (specify below) Spills that we have encountered have mainly been due to lateral blockages. The cause has mainly been due to customers disposing/flushing wipes, FOG, and root intrusion. Other (specify below) Offset joints caused from sagging of the the customer lateral line to the district owned lower lateral connection. N/A Offset joints are repaired as needed to prevent lateral blockages and spills. When encountered, roots are treated and customers are notified for awareness. 2025 9SSO10695 9 616 17-MAR-26 Municipal(Public) 10395 1 7 2 2 0 2 1 1 0 2 N/A .5 0 1 89 10 0 0 0 100 100 0 0 0 0 0 0 5201 5201 Lower only 25 1 1 24 74 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 74.7 52.3 9 000000076 San Vicente Treatment Plant CS, 22758 San Vicente Rd. Ramona, Ca. 92065 WWTP same agency Y N Par 28 Villas N/A N/A 44 0 1 Y Y Other (specify below) Spills encountered have been due to lateral blockages. The cause has mainly been due to customers flushing wipes, FOG, and root intrusion. Sometimes the cause of the blockage is due to restriction of flow in the lateral due to offsets at the upper and lower lateral connection. Other (specify below) System infrastructure failure points are offset joints located at the connection from the upper lateral to the lower lateral. N/A When offset joints on the lower lateral are found at the property line connection, they are repaired to prevent blockages and spills. 2023 8SSO10577 8 616 28-MAR-24 Other 11500 0 0 0 0 0 0 0 0 0 0 0 16 0 79 21 0 0 0 100 0 0 0 0 0 0 0 1546 0 None 0 0 6 5 89 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 0 8 332353001 Western Riverside County Regional Wastewater Authority, 14634 River Rd., Corona, CA 92880 WWTP other agency N 0 0 2 Y Y Other (specify below) The District has a robust cleaning program that has prevented any major spills. The last major spill (Category 1) that the District had was in March of 1999. Other (specify below) The District has 16 miles of gravity fed mainline. The District has a few hotspot locations that are hydro cleaned on a quarterly basis but have not caused any issues. None. Annual cleaning of the entire system is conducted every year and CCTV is performed every 5 years. Also, the few hotspot locations the District does have are cleaned quarterly. 2024 8SSO10577 8 616 05-MAR-25 Other 11500 0 0 0 0 0 0 0 0 0 0 0 16 0 79 21 0 0 0 100 0 0 0 0 0 0 0 1546 0 None 0 0 6 5 89 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 0 8 332353001 Western Riverside County Regional Wastewater Authority WWTP other agency N 0 0 3 Y Y Other (specify below) The District has a robust cleaning program that has prevented any major spills. The last major spill (Category 1) that the District had was in March of 1999. Other (specify below) The District has 16 miles of gravity fed mainline. The District has a few hotspot locations that are hydro cleaned on a quarterly basis but have not caused any issues. None. Annual cleaning of the entire system is conducted every year and CCTV is performed every 5 years (2025). Also, the few hotspot locations the District does have are cleaned quarterly. 2025 8SSO10577 8 616 16-MAR-26 Other 11500 0 0 0 0 0 0 0 0 0 0 0 16 0 79 21 0 0 0 100 0 0 0 0 0 0 0 1546 0 None 0 0 6 5 89 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 0 8 332353001 Western Riverside County Regional Wastewater Authority WWTP other agency N 0 0 3 Y Y Other (specify below) The District has a robust cleaning program that has prevented any major spills. The last major spill (Category 1) that the District had was in March of 1999. Other (specify below) The District has 16 miles of gravity fed mainline. The District has a few hotspot locations that are hydro cleaned on a quarterly basis but have not caused any issues. None. Annual cleaning of the entire system is conducted every year and CCTV is performed every 5 years with the latest being in 2025. Also, the few hotspot locations the District does have are cleaned quarterly. 2023 5SSO10750 5F 616 05-DEC-25 Municipal(Public) 44000 2 10 4 2 1 3 3 1 3 0 2-CWEA Laboratory Analyst Grade 1 certificates 3 193 2 66 19 7 6 0 100 2 12 86 0 0 0 100 15376 0 None 0 4 38 21 12 25 0 0 0 0 100 0 1 1 1 0 0 0 0 0 5 0 1 0 0 1 0 0 0 0 2 0 60 12.5 5SSO10750 North of River Sanitary District #1 CS, 204 Universe Avenue, Bakersfield, CA 93308 WWTP same agency Y N City of Shafter 2022-0103-DWQ N Kern Sanitation Authority 2022-0103-DWQ N NA NA N NA NA N NA NA NA 5 1 0 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA District designates Hot Spots for all locations that have resulted from past SSOs or have areas of above normal grease build up. Hot Spot locations are cleaned on a bi-weekly, monthly, quarterly and annual basis. NORSD operators flush sewer system daily and maintain ongoing attention to sewer conditions. District designates Hot Spots for all locations that have resulted from past SSOs or have areas of above normal grease build up. Hot Spot locations are cleaned on a bi-weekly, monthly, quarterly and annual basis. District also videos routinely to gather information of sewer main conditions. District advertises (on flushing truck) about fats, oils and grease clogging sewer system to help promote public awareness. District performs cut and replace projects and slip lining projects annually to repair sags and damaged pipe throughout sewer system. Also promotes a pre-treatment program to ensure grease traps and interceptors are being maintained and serviced as well as installed in new construction. 2024 5SSO10750 5F 616 05-DEC-25 Municipal(Public) 44000 2 10 4 2 1 3 3 1 3 0 2-CWEA Laboratory Analyst Grade 1 certificates 3 193 2 66 19 7 6 0 100 2 12 86 0 0 0 100 15376 0 None 0 4 38 21 12 25 0 0 0 0 100 0 1 1 1 0 0 0 0 0 5 0 1 0 0 1 0 0 0 0 2 0 60 12.5 5SSO10750 North of River Sanitary District #1 CS, 204 Universe Avenue, Bakersfield, CA 93308 WWTP same agency Y N City of Shafter 2022-0103-DWQ N Kern Sanitation Authority 2022-0103-DWQ N NA NA N NA NA N NA NA NA 5 1 0 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA The District designates Hot Spots for all locations that have resulted from past SSOs or have areas of above normal grease build up. Hot Spot locations are cleaned on a bi-weekly, monthly, quarterly and annual basis. The district operators flush sewer daily and maintain ongoing attention to sewer conditions. District designates Hot Spots for all locations that have resulted from past SSOs or have areas of above normal grease build up. Hot Spot locations are cleaned on a bi-weekly, monthly, quarterly and annual basis. District also videos routinely to gather information of sewer main conditions. District advertises on flushing truck and video truck about fats, oils and grease clogging sewer system to help promote and raise public awareness. District performs cut and replace projects and slip lining projects annually to repair sags and damaged pipe thorough out sewer system, District also promotes a pre-treatment program to ensure grease traps and interceptors are being maintained and serviced as well as installed in new construction. 2023 9SSO10692 9 616 22-APR-24 School 40000 0 8 1 1 0 0 0 0 0 0 0 6 0 0 0 0 0 100 100 0 0 0 0 0 0 0 24 24 Upper and Lower 4 0 10 25 30 25 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 3 1.5 0 0 unknown City of San Diego SSS other agency N 0 0 0 N Y Root Intrusion Upper Lateral None Requesting deferred maintenance budget. SDSU currently has a $1 billion infrastructure need and $8 million to address that need. Recent budget cuts make that deficit a struggle. 2024 9SSO10692 9 616 16-MAR-26 School 47890 0 8 1 1 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24 24 Upper and Lower 4 0 10 25 30 25 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 3 1.5 0 0 Unknown City of San Diego SSS other agency N 0 0 0 N Y Root Intrusion Upper Lateral None Requesting deferred maintenance budget. SDSU currently has a $1 billion infrastructure need and $8 million to address it. Recent budget cuts make that deficit a struggle. 2025 9SSO10692 9 616 16-MAR-26 School 47890 0 8 1 1 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24 24 Upper and Lower 4 0 10 25 30 25 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 3 1.5 0 0 Unknown City of San Diego SSS other agency N 0 0 0 N Y Root Intrusion Upper Lateral None Requesting deferred maintenance budget. SDSU currently has a $1 billion infrastructure need and $8 million to address it. Recent budget cuts make that deficit a struggle. 2024 8SSO20055 8 616 31-MAR-25 Municipal(Public) 2693 1 1 1 1 0 0 0 0 0 0 2 Grade III Wastewater Treatment Plant Operators, OIT WWTP 0 11.5 0 70 30 0 0 0 100 0 0 0 0 0 0 0 592 2 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .8 .9 0 8 330105001 Idyllwild Water District WWTP 52335 Apela Dr. Idyllwild CA 92549 WWTP same agency N N Idyllwild Brew Pup 8332882001 6 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance NA Other (specify below) No Failures occurred during 2024 NA Repairs to collection system are being made in areas that were identified as problem areas in the 2023 video inspection report. 2024 8SSO20055 8 616 26-JUN-24 Municipal(Public) 2963 0 1 1 1 0 0 0 0 0 0 2 Grade III Wastewater Treatment Operators 0 11.5 0 70 30 0 0 0 100 0 0 0 0 0 0 0 592 2 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .8 9.3 9.3 8330105001 Idyllwild Water District WWTP 52335 Apela Dr. Idyllwild CA 92549 WWTP same agency N N Idyllwild Brew Pub 8332882001 6 0 0 N N Damage by Others Not Related to Collection System Construction/Maintenance NA Gravity Mainline NA NA NA 2025 8SSO20055 8 616 30-MAR-26 Municipal(Public) 2693 1 1 1 1 0 0 0 0 0 0 Two grade III Wastewater Treatment Plant operators and One OIT WWTP 0 11.5 0 70 30 0 0 0 100 0 0 0 0 0 0 0 592 2 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .8 .2 .2 8 330105001 Idyllwild Water District WWTP 52335 Apela Dr. Idyllwild CA 92549 WWTP same agency N N Idyllwild Brew Pup 8332882001 NA 6 0 0 N Y Other (specify below) No spills during 2025 Gravity Mainline NA NA Repairs on several joints on the gravity mains were made in areas that were discovered during video inspections. 2023 9SSO10691 9 616 27-MAR-24 Municipal(Public) 63896 4 10 2 1 3 2 0 3 0 0 N/A 18 162 20 50 10 10 0 0 100 25 25 25 25 0 0 100 27859 0 None 0 0 0 0 0 0 0 0 0 0 0 0 6 3 0 0 0 0 0 0 9 0 2 0 0 0 0 0 0 0 2 5 25 30 9sso10691 380 Ave Pico , San Clemente, CA WWTP same agency N 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline N/A n/a 2024 9SSO10691 9 616 03-APR-25 Municipal(Public) 62313 2 7 2 1 4 3 2 1 3 0 n/a 18 162 5 92 3 0 0 0 0 3 97 0 0 0 0 0 52000 0 None 0 3 2 5 90 0 0 0 0 0 0 0 1 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 60 30 9SS01069 WWTP same agency N 0 0 2 Y Y Debris-General Manhole N/A N/A SENT TO ENGINERING DEPARTMENT 2025 9SSO10691 9 616 25-MAR-26 Municipal(Public) 62313 1 6 3 1 5 4 4 4 5 0 N/A 19 165 5 92 2 1 0 0 100 25 20 15 40 0 0 100 52000 0 None 0 3 2 5 90 0 0 0 0 0 0 0 5 3 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1 25 14 9301005770 380 Ave Pico San Clemente, Ca 92672 WWTP same agency Y N Santa Margarita Water District 9SSO10697 N/A 4 0 2 N Y Root Intrusion Our most common sewer failures stem from tree root infiltration, blockages from grease or debris, and structural failures like cracked, collapsed, or corroded pipes often due to the citys aging infrastructure, Gravity Mainline N/A N/A Actions taken by the City of San Clemente include implementing A mandated Sewer System Management Plans (SSMPs) which includes our hydro cleaning and CCTV plans, repairing aging infrastructure, reducing inflow/infiltration, and controlling Fats, Oils, and Grease (FOG) blockages. 2023 8SSO10580 8 616 25-MAR-24 Municipal(Public) 935000 8 67 9 7 1 3 2 5 0 0 4.a. through 4.d. are for Collections Operators only. E&I Technologists (Grade I: 2; Grade II: 5; Grade III: 7; Grade IV: 5) and Mechanical Technologists (Grade I: 3; Grade II: 8; Grade III: 5; Grade IV: 2) 11 135 1 7 20 55 17 0 0 7 4 58 31 0 0 0 0 0 None 0 0 15 36 43 6 0 0 0 0 100 0 2 0 2 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 4 31 28 8SSO10580 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP same agency 8SSO10640 Orange Cnty Sanitation Dist CS, , CA SSS other agency 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency N N Orange Cnty Sanitation Dist CS, , CA 8SSO10640 N County Sanitation District No. 21 CS, , Whittier, CA 4SSO11400 29 1 41 Y Y Pump Station Failure - Mechanical Pump Station - Mechanical San Bernardino Lift Station Pump #4 Spill investigation was completed in March 2024. Multiple factors were identified: 1) Galvanic corrosion between bronze bearing and cast iron packing creating loose bearing; 2) MIC susceptible material of 410SS being drilled at threaded end providing a location for corrosive bacteria to cause pitting reducing shaft wall strength; 3) Vibrations due to the loose bearing and possible impeller imbalance due to debris caused material wear, which likely allowed crack propagation resulting in a shear fracture of the shaft. IEUA recently completed 2 projects (one Tactical Asset Management Plan and one Sewer System Maintenance Optimization Plan) to identify key areas within the system that need to be addressed and those deficiencies have been placed on future projects in order of criticality with some projects happening next fiscal year and others planned as far as 10 years out. 2024 8SSO10580 8 616 15-JUL-25 Municipal(Public) 940000 3 65 9 7 1 3 2 5 0 0 4.a. through 4.d. are for Collections Operators only. E&I Technologists (Grade I: 3; Grade II: 2; Grade III: 8; Grade IV: 2) and Mechanical Technologists (Grade I: 2; Grade II: 7; Grade III: 5; Grade IV: 2) 11 135 1 7 20 55 17 0 100 7 4 58 31 0 0 100 0 0 None 0 0 15 36 43 6 0 0 0 0 100 0 2 0 2 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 8 41.5 10.6 8 362918001 IEUA Carbon Canyon WWRF, 14950 Telephone Avenue, Chino, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 1, 2450 East Philadelphia Street, Ontario, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 4, 12811 Sixth Street, Rancho Cucamonga, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 5, 6068 Kimball Avenue, Chino, CA WWTP same agency N N Orange Cnty Sanitation Dist CS, , CA 8SSO10640 N County Sanitation District No. 21 CS, , Whittier, CA 4SSO11400 NA 29 1 41 Y Y Pump Station Failure - Mechanical NA Pump Station - Mechanical NA No ongoing spill investigations at this time IEUA TYCIP (Ten Year Capital Improvement Plan) addresses identified repairs needed throughout the system with projects prioritized according to criticality. there is also a current project underway to address manhole repairs identified throughout the system. the asset management department is in the process of reviewing alternative inspection technologies to perform assessments on pipe segments that IEUA has had difficulty performing in house. 2025 8SSO10580 8 616 30-MAR-26 Municipal(Public) 948000 5 67 10 7 1 3 2 5 0 0 4.a. through 4.d. are for Collections Operators only. E&I Technologists (Grade I: 1; Grade II: 3; Grade III: 10; Grade IV: 3) and Mechanical Technologists (Grade I: 3; Grade II: 8; Grade III: 6; Grade IV: 0) 11 135 1 7 20 55 17 0 100 7 4 58 31 0 0 100 0 0 None 0 0 15 36 43 6 0 0 0 0 100 0 2 0 2 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 8 46.6 31 8 362918001 IEUA Carbon Canyon WWRF, 14950 Telephone Avenue, Chino, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 1, 2450 East Philadelphia Street, Ontario, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 4, 12811 Sixth Street, Rancho Cucamonga, CA WWTP same agency 8 362918001 IEUA Regional Plant No. 5, 6068 Kimball Avenue, Chino, CA WWTP same agency N N Orange Cnty Sanitation Dist CS, , CA 8SSO10640 N County Sanitation District No. 21 CS, , Whittier, CA 4SSO11400 NA 29 1 41 Y Y Pipe Structural Problem/Failure - Installation Manhole No ongoing spill investigations at this time. monitoring continues on failed spool and consequent repairs made IEUA TYCIP (Ten Year Capital Improvement Plan) addresses identified repairs needed throughout the system with projects prioritized according to criticality. current project in construction to address needed manhole repairs identified throughout the system. the asset management department is continuing the process of reviewing alternative inspection technologies to perform assessments on pipe segments that IEUA has had difficulty performing in house. 2023 9SSO10690 9 616 05-JAN-26 Municipal(Public) 3550 0 3 1 1 1 0 0 2 0 1 none 6 79 10 90 0 0 0 0 100 100 0 0 0 0 0 100 1773 0 None 0 0 15 50 21 10 4 0 0 0 100 0 0 2 0 0 0 0 0 0 2 3 0 12 0 0 0 0 0 0 15 5 26.6 5 9 000000177 Bayside Capistrano Sewer Improvement Prjt Dewatering, 2801 Bayside Walk , San Diego, CA 92109 WWTP same agency N N n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 14 3 0 N Y Debris-General none Gravity Mainline none none CCTV inspections and pipeline replacements in progress. 2024 9SSO10690 9 616 05-JAN-26 Municipal(Public) 3550 0 3 1 1 1 0 0 2 0 1 NA 6 79 10 90 0 0 0 0 100 100 0 0 0 0 0 100 1773 0 None 0 0 15 50 21 10 4 0 0 0 100 0 0 2 0 0 0 0 0 0 2 3 0 12 0 0 0 0 0 0 15 5 36.6 7 9 000000177 Bayside Capistrano Sewer Improvement Prjt Dewatering, 2801 Bayside Walk , San Diego, CA 92109 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 14 3 0 N Y Debris-General NA Gravity Mainline NA NA NA 2023 9SSO10689 9 616 30-OCT-24 Municipal(Public) 705 0 29 3 5 0 5 1 0 0 0 N/A 0 7 4 49 47 0 0 0 100 0 0 0 0 0 0 0 245 0 None 0 0 25 0 0 75 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 .1 9 000000123 Rancho Del Campo WPCF OWTS, 31035 Forest Gate , Campo, CA 92006 WWTP same agency N N/A 0 0 0 N Y Root Intrusion N/A Gravity Mainline N/A None See Attachment 2024 9SSO10689 9 616 01-APR-25 Municipal(Public) 705 0 28 2 5 0 5 0 2 0 0 N/A 0 7 4 49 47 0 0 0 100 0 0 0 0 0 0 0 245 0 None 0 0 25 0 0 75 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 .1 9 000000123 Rancho Del Campo WPCF OWTS, 31035 Forest Gate , Campo, CA 92006 WWTP same agency N N/A 0 0 0 N Y Root Intrusion N/A Gravity Mainline N/A None See Attachment 2025 9SSO10689 9 616 27-MAR-26 Municipal(Public) 705 1 14 3 5 1 1 0 2 0 0 N/A 0 7 4 49 47 0 0 0 100 0 0 0 0 0 0 100 245 0 None 0 0 25 0 0 75 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 .1 9 000000123 Rancho Del Campo WPFC OWTS 31035 Forest Gate, Campo CA WWTP same agency N N/A 0 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A None See Attachment. 2023 8SSO10582 8 616 27-MAR-24 Municipal(Public) 134297 3 9 4 4 6 5 4 3 0 0 9 381 3 74 18 4 1 0 100 7 7 39 46 0 1 100 0 0 None 0 1 52 19 14 8 0 0 0 6 100 0 3 0 0 0 0 0 0 0 0 0 4 2 1 0 0 0 0 0 0 0 66 21 330117003 City of Riverside POTW, Riverside, CA WWTP other agency 8sso10568 WRCRWA Reclamation Plt CS, , Riverside, CA WWTP other agency 33c313363 SAWPA, Corona, CA SSS other agency N 0 1 1 Y Y Other (specify below) No System spills in 2023 Other (specify below) No System spills in 2023 No System spills in 2023 No System spills in 2023 2024 8SSO10582 8 616 26-MAR-25 Municipal(Public) 135093 3 6 2 2 2 6 1 3 1 0 8.5 383 3 74 18 4 0 0 100 6 7 40 47 0 1 100 0 0 None 0 2 51 19 14 8 0 0 0 6 100 0 3 0 0 0 0 0 0 0 3 0 4 2 1 0 0 0 0 0 7 0 56.8 36.7 330117003 001, , Riverside, CA WWTP other agency 8sso10568 WRCRWA POTW, Riverside, CA WWTP other agency 33c313363 SAWPA, Corona, CA SSS other agency N 0 1 1 Y Y Other (specify below) No Spills in 2024 Other (specify below) No Spills in 2024 No Spills in 2024 No Spills in 2024 2025 8SSO10585 8 616 06-JAN-26 Municipal(Public) 50500 1 1 2 1 0 0 0 0 0 0 0 120 1 98 1 0 0 0 0 0 0 0 0 0 0 0 11834 11834 Lower only 74 0 10 20 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 25 1.4 8 332783001 EMWD San Jacinto Valley WRF 770 N. Sanderson, SJ WWTP other agency N 0 0 0 N Y Other (specify below) No major spills Other (specify below) No infrastructure failure points N/A On-going maintenance and inspection program 2023 5SSO10752 5F 616 25-MAR-24 Municipal(Public) 8300 1 1 1 1 0 0 0 0 0 0 T2 D2 D1 1 19 28 70 1 0 0 0 99 1 0 0 0 0 0 1 0 0 None 0 0 1 3 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 20 0 5SSO10752 Orosi P.U.D. 12488 416 Avenue, Orosi, CA 93647 WWTP other agency N 0 0 0 N N Debris-General N/A Gravity Mainline N/A NONE NONE 2024 5SSO10752 5F 616 13-MAR-26 Municipal(Public) 8300 1 1 1 1 0 0 0 0 0 0 T2 D2 1 19 28 70 1 0 0 0 99 1 0 0 0 0 0 1 0 0 None 0 0 1 3 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 20 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Debris-General N/A Gravity Mainline N/A None None 2025 5SSO10752 5F 616 16-MAR-26 Municipal(Public) 8300 1 1 1 1 0 0 0 0 0 0 T2 D2 1 19 28 70 1 0 0 0 99 1 0 0 0 0 0 1 0 0 None 0 0 1 3 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 4 0 20 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Debris-General N/A Gravity Mainline N/A None None 2023 9SSO10687 9 616 22-APR-24 Municipal(Public) 7985 2 3 1 1 3 2 3 1 0 4 3 72 1 75 21 3 0 0 100 20 2 78 0 0 0 100 3163 0 None 27 9 22 45 24 0 0 0 0 0 0 1 2 1 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 .3 32 8 9371005757 3590 North River Road Oceanside Ca. 92058 SSS other agency N N 8 4 1 Y Y Debris-General Pump Station - Controls N/A N/A 2024 9SSO10687 9 616 27-MAR-25 Municipal(Public) 7985 2 2 1 1 1 0 2 1 0 4 N/A 3.1 73.4 2 74 21 3 0 0 100 16 5 79 0 0 0 100 3163 0 None 27 14 19 43 24 0 0 0 0 0 100 5 4 1 1 0 0 0 0 0 11 3 2 1 1 0 0 0 0 0 7 .3 15.8 6.4 9 37i005757 3590 North River Road Oceanside Ca. 92058 SSS other agency N N/A 8 4 0 Y Y Debris-General Pump Station - Controls n/a n/a 2025 9SSO10687 9 616 17-MAR-26 Municipal(Public) 7990 3 3 1 0 3 1 2 1 0 4 3.1 73.4 2 74 21 3 0 0 100 16 5 79 0 0 0 100 3342 0 None 27.5 14 19 43 24 0 0 0 0 0 100 5 4 1 1 0 0 0 0 0 11 3 2 1 1 0 0 0 0 0 7 .3 22.1 4.3 9 000000351 San Luis Rey Water Reclamation Facility - Recycled Water and Pure Water, 3950 North River Road, Oceanside, CA 92058-6913 SSS other agency N 8 4 0 Y Y Debris-General Pump Station - Controls n/a n/a 2023 8SSO10592 8 616 26-MAR-24 Hospital 2500 0 8 1 1 0 0 0 0 0 0 0 5 70 20 10 0 0 0 100 0 0 0 0 0 0 0 95 95 Upper and Lower 1 5 15 65 10 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 1 8SSO10569 East Valley Water District CS, 31111 Greenspot Road, Highland, CA 92346 SSS other agency N 0 0 0 N Y Root Intrusion Gravity Mainline No ongoing spill investigations at this time. Preventative maintenance on sewer system. Including snaking lines, jetting and cleaning lines. Running sewer camera to investigate sewer lines. 2025 8SSO10592 8 616 01-APR-26 Hospital 2500 0 5 1 1 0 0 0 0 0 0 0 5 70 20 10 0 0 0 100 0 0 0 0 0 0 0 95 95 Upper and Lower 1 5 15 65 10 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 8SSO10569 East Valley Water District SSS other agency N 0 0 0 N Y Root Intrusion Gravity Mainline No ongoing spill investigations at this time. Preventative maintenance on sewer system, including snaking lines, jetting and cleaning lines. Running sewer camera to investigate sewer lines. 2025 8SSO10594 8 616 12-JAN-26 Municipal(Public) 104000 1 2 1 1 2 0 1 0 0 1 None 1.6 259.1 1 87 6 5 1 0 100 100 0 0 0 0 0 100 24104 0 None 0 1 5 52 36 6 0 0 0 0 100 1 0 4 1 0 0 0 0 0 6 2 0 1 0 0 0 0 0 0 3 1.5 48.2 27.9 8SSO10594 501 E. Santa Ana Ave Bloomington CA 92316 WWTP same agency N 0 0 4 N Y Other (specify below) No major spill occurred in 2025 Other (specify below) None None None 2023 5SSO10753 5F 616 02-APR-24 Municipal(Public) 4164 0 1 1 1 0 0 0 0 0 0 NA 1 12 12 78 6 0 0 0 96 0 0 4 0 0 0 4 1118 0 None 0 0 10 10 10 0 0 0 0 70 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 1 3 0 5SSO10753 Planada Csd CS, 103 Live Oak Street, Planada, CA 95340 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA 0 1 0 0 N Y Fats, Oil and Grease (FOG) None Pump Station - Mechanical NA NA NA 2023 8SSO10597 8 616 09-DEC-25 Municipal(Public) 5568 0 4 2 2 4 7 2 2 0 0 NA 4 95 4 90 6 0 0 0 0 43 57 0 0 0 0 0 4097 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 7 836011301 Running Springs CS, , Running Springs, CA 92382 WWTP same agency Y N Arrowbear 6SSO11493 NA 2 0 4 N Y Other (specify below) NA Other (specify below) NA NA NA 2024 8SSO10597 8 616 15-OCT-25 Municipal(Public) 5568 0 4 2 2 4 7 2 2 0 0 NA 4 95 4 90 6 0 0 0 0 43 57 0 0 0 0 0 4097 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 7 8SSO10597 Running Springs CS, , Running Springs, CA 92382 WWTP same agency Y N Arrowbear 6SSO11493 NA 2 0 4 N Y Debris-General NA Pump Station - Mechanical NA NA CCTV, jetting, pump maintenance 2025 8SSO10597 8 616 01-APR-26 Municipal(Public) 5568 0 4 2 2 4 7 2 2 0 0 NA 4 95 4 90 6 0 0 0 0 43 57 0 0 0 0 0 4097 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 4 8SSO10597 Running Springs CS, , Running Springs, CA 92382 WWTP same agency Y N Arrowbear 6SSO11493 NA 2 0 4 N Y Debris-General NA Pump Station - Mechanical NA NA CCTV, jetting, pump maintenance 2023 9SSO10681 9 616 27-MAR-24 Other 1160 1 1 0 1 0 1 0 0 0 0 Grade III Wastewater Treatment Certification held by District contractors and Chief Plant Operator. 0 8 20 70 10 0 0 0 100 100 0 0 0 0 0 100 386 386 Lower only 3 0 35 0 65 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 0 1 1 9SSO10681 Pauma Valley Treatment Plant CS, 33129 Cole Grade Road , Pauma Valley, CA 92061 WWTP same agency N N/A 4 0 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Upper Lateral N/A N/A A critical Failure Plan was Developed and given to all staff. A Strategic Planning initiative has been initialized to prioritize system deficiencies. 2024 9SSO10681 9 616 05-NOV-25 Other 1160 1 1 0 1 1 0 1 0 0 0 Grade III Wastewater Treatment Certification held by District contractors and Chief Plant Operator. 0 8 20 70 10 0 0 0 100 100 0 0 0 0 0 100 386 386 Lower only 3 0 35 0 65 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 0 1 1 9 000000145 Pauma Valley Treatment Plant, 33129 Cole Grade Road, Pauma Valley, CA 92061 WWTP same agency N N/A 4 0 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/a Upper Lateral N/A N/A A critical failure plan was developed and given to all staff. A strategic planning initiative has been initialized to prioritize system deficiencies. 2025 9SSO10681 9 616 26-MAR-26 Other 1160 0 1 1 2 1 0 0 1 0 0 Grade III Wastewater Treatment Certification held by District contractors and Chief Plant Operator. 0 8 20 70 10 0 0 0 100 100 0 0 0 0 0 100 386 386 Lower only 3 0 35 0 65 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 0 1 1 9000000145 Pauma Valley Treatment Plant, 33129 Cole Grade Rd, Pauma Valley, CA 92061 WWTP same agency N N/A 4 0 0 N Y Root Intrusion N/A Upper Lateral N/A N/A Preventative maintenance activities continued, including routine cleaning and inspection of sewer lines. Staff reviewed and implemented procedures from the critical failure response plan. Ongoing evaluation of system performance is being conducted to identify and prioritize infrastructure improvements. 2023 9SSO10680 9 616 28-MAR-24 Municipal(Public) 72781 11 19 5 3 15 13 6 4 0 7 Only Collections Certifications accounted for in 4.f. 5 165 49 35 11 5 0 0 100 11 0 20 69 0 0 100 15646 0 None 0 1 15 20 51 13 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 1 0 0 0 0 0 3 3 155 22 9SSO10658 City of San Diego SSS other agency Y N County of San Diego 9SSO10662 N/A 8 0 4 N Y Debris-wipes/Non-disposables Corroded manhole rung along with large accumulation of grease and wipes were observed at the blockage point. Gravity Mainline Spill investigation complete. Manhole rung assessment and removal being performed by District staff. Communication Department performed outreach to the public about keeping grease and wipes out of the sewer system. New SmartCover device installed in neighboring area to monitor flow levels and alert staff to surcharge events to reduce future SSO's. Question 13. System Performance Evaluation: Staff will upload the System Performance Analysis when it is available to us. 2024 9SSO10680 9 616 31-MAR-25 Municipal(Public) 72822 9 23 4 3 12 12 4 4 0 8 Only Collections Certifications accounted for in 4.f. 4.6 164.6 49 35 11 5 0 0 100 11 0 20 69 0 0 100 15705 0 None 0 1 15 20 51 13 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 1 0 0 0 0 0 3 3 129.9 17.9 9SSO10658 City of San Diego SSS other agency Y N County of San Diego 9SSO10662 N/A 8 0 4 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A No ongoing investigations. Adjusted cleaning schedule at major spill location from 14 months to 6 months and installed SmartCover device at nearby manhole to continuously monitor flow levels. 2025 9SSO10680 9 616 19-MAR-26 Municipal(Public) 73132 9 21 4 3 18 13 3 4 0 6 Only Collections Certifications accounted for in 4.f. 4.6 164.6 49 35 11 5 0 0 100 11 0 20 69 0 0 100 15777 0 None 0 1 15 20 51 13 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 1 0 0 0 0 0 3 3 163.1 6.7 9SSO10658 City of San Diego SSS other agency Y N County of San Diego 9SSO10662 N/A 8 0 4 Y Fats, Oil and Grease (FOG) Buena Vista SSP (9860) caused by buildup of grease and wipes in the gravity sewer system. Gravity Mainline N/A None Cleaned/inspected the affected areas of the sewer system from the spill and determined that no further action was needed at this time. 2023 9SSO10679 9 616 21-MAR-24 Municipal(Public) 19711 5 13 5 3 0 1 1 0 0 0 N/A 2 81 1 83 14 2 0 0 100 75 2 23 0 0 0 100 4727 3 None 0 2 8 52 16 0 0 0 0 22 100 0 1 0 1 0 0 0 0 0 2 0 0 2 1 0 0 0 0 0 3 5 71 26 9 000000217 Ralph W Chapman WRF, 11901 Singer Lane , Spring Valley, CA 91978 WWTP same agency N N/A 0 0 0 Y Y Debris from Construction N/A Other (specify below) Debris from construction (asphalt and pipe pieces) created a blockage of the sewer line creating a spill from the manhole. None. No current deficiencies, However the District has an active sewer maintenance and Capital Improvement Program to keep infrastructure in good working order. 2024 9SSO10679 9 616 11-MAR-25 Municipal(Public) 19711 5 13 4 3 1 3 0 0 0 0 N/A 2.5 81.1 1 83 14 2 0 0 100 75 2 23 0 0 0 100 4730 3 None .1 2 8 52 16 0 0 0 0 22 100 0 1 0 1 0 0 0 0 0 2 0 0 2 1 0 0 0 0 0 3 3 43.7 14 9 000000217 Ralph W Chapman WRF, 11901 Singer Lane , Spring Valley, CA 91978 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills occurred during CY24. Other (specify below) No failures occurred during CY24. None. No current deficiencies, However, the District has an active sewer maintenance and Capital Improvement Programs to keep infrastructure in good working order. 2025 9SSO10679 9 616 04-MAR-26 Municipal(Public) 19728 10 9 4 3 1 6 2 0 0 0 N/A 2.4 81.1 1 83 14 2 0 0 100 75 2 23 0 0 0 100 4732 3 None .1 2 8 52 16 0 0 0 0 22 100 0 1 0 1 0 0 0 0 0 2 0 0 2 1 0 0 0 0 0 3 3 70.5 6 9 000000217 Ralph W Chapman WRF, 11901 Singer Lane , Spring Valley, CA 91978 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills occurred during CY25. Other (specify below) No failures occurred during CY25. None. No current deficiencies, However, the District has an active sewer maintenance and Capital Improvement Programs to keep infrastructure in good working order. 2023 8SSO10600 8 616 04-DEC-25 Municipal(Public) 3944 0 7 1 0 5 1 1 0 0 1 None 2 18 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 8 0 0 8 360108001 Baldwin Lake, null WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from lateral, power failure Other (specify below) Lateral, manhole None None 2024 8SSO10600 8 616 04-DEC-25 Municipal(Public) 3596 7 7 1 0 5 2 1 0 0 0 None 2 17.5 0 0 0 0 0 90 90 0 0 0 0 0 10 10 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 4450 1200 8 360108001 Baldwin Lake, null WWTP other agency N None 0 0 0 N Y Other (specify below) Debris from lateral, power failure Other (specify below) Lateral, manhole None Regular cleaning and CCTV 2023 9SSO10678 9 616 21-MAR-24 Municipal(Public) 170236 2 17 4 4 12 6 6 8 0 0 N/A 134 487 1 83 11 4 1 0 100 18 17 44 21 0 0 100 0 0 None 0 0 3 53 44 0 0 0 0 0 100 0 0 3 4 0 0 0 0 0 7 0 2 3 5 0 0 0 0 0 10 0 436 61 9 000000175 Plant 3A WWTP, 26801 Camino Capistrano, Laguna Niguel WWTP same agency 9 000000175 Latham WWTP, 34152 Del Obispo St., Dana Point WWTP other agency 9 000000117 Regional Treatment Plant, 29201 La Paz Road, Laguna Niguel WWTP other agency Y N Santa Margarita Water District 9SSO10697 N South Coast Water District 9SSO10703 N City of San Juan Capistrano 9SSO10659 N/A 20 0 10 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Most common causes of SSOs have been debris from paving contractors and construction nearby that is unrelated to the collection system. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) One minor SSO resulted from an air relief valve. Other infrastructure failure has not occurred. N/A Air relief valves were replaced in the area of the SSO that came from an air relief valve. Outreach to paving contractors to provide instruction on protecting manholes during paving and construction. 2024 9SSO10678 9 616 26-MAR-25 Municipal(Public) 170236 0 18 4 4 16 5 3 6 0 0 N/A 134 487 1 83 11 4 1 0 100 18 17 44 21 0 0 100 0 0 None 0 0 3 53 44 0 0 0 0 0 100 0 0 3 4 0 0 0 0 0 7 0 2 3 5 0 0 0 0 0 10 0 436.8 61.2 9 000000117 Regional Treatment Plant, 29201 La Paz Road, Laguna Niguel CA 92677 WWTP same agency 9 000000175 Plant 3A WWTP, 26801 Camino Capistrano, Laguna Niguel CA 92677 WWTP same agency 9 000000175 Latham WWTP, 34152 Del Obispo Street, Dana Point CA WWTP other agency Y N Santa Margarita Water District 9SSO10697 N South Coast Water District 9SSO10703 N City of San Juan Capistrano 9SSO10659 N/A 20 0 10 Y Y Other (specify below) Pipe Structural Failure- Not related to install or controls Force Main Force main made of techite (reinforced fiberglass) failed at a joint. None Force main was repaired at the location of the failure. The entire alignment is scheduled to be replaced beginning in 2025. 2025 9SSO10678 9 616 02-MAR-26 Municipal(Public) 170236 0 46 10 6 40 20 4 15 0 0 N/A 134 487 1 83 11 4 1 0 100 18 17 44 21 0 0 100 0 0 None 0 0 3 53 44 0 0 0 0 0 100 0 0 3 4 0 0 0 0 0 7 0 2 3 5 0 0 0 0 0 10 0 427.3 59.9 9 000000117 Regional Treatment Plant, 29201 La Paz Road, Laguna Niguel CA 92677 WWTP same agency 9 000000175 Plant 3A WWTP, 26801 Camino Capistrano, Laguna Niguel CA 92677 WWTP same agency 9 000000175 Latham WWTP, 34152 Del Obispo Street, Dana Point CA WWTP other agency Y N Santa Margarita Water District 9SSO10697 N South Coast Water District 9SSO10703 N City of San Juan Capistrano 9SSO10659 N/A 20 0 10 Y Y Other (specify below) Pipe structural failure- not related to install or controls. Force Main N/A None Force main realignment project is underway. Additionally, manhole relocation is being assessed near a railroad right-of-way. 2023 5SSO10729 5F 616 22-MAR-24 Municipal(Public) 8223 1 2 1 1 1 0 0 0 0 2 1 24 0 0 0 0 0 100 100 0 0 0 0 0 100 100 15 15 Lower only 8 2 5 15 43 10 15 5 5 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10 5 5SSO10729 City Of Woodlake CS, 350 North Valencia Boulevard, Woodlake, CA 93286 WWTP same agency N N none none N none none N none none N none none N none none none 1 0 0 Y Y Debris from Lateral Gravity Mainline none City has obtained a grant from the State Water Resources Control Board to upgrade old main lines and upsize lines. 2024 5SSO10729 5F 616 10-FEB-25 Municipal(Public) 8288 1 2 1 1 1 0 0 0 0 2 1 24 0 0 0 0 0 100 100 0 0 0 0 0 100 100 15 15 Lower only 8 8 5 15 40 10 15 5 2 0 100 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 3 1 11 11 5SSO10729 City Of Woodlake CS, 350 North Valencia Boulevard, Woodlake, CA 93286 WWTP same agency N N none none N none none N none none N none none N none none none 1 0 0 Y Y Debris from Lateral Gravity Mainline none City has obtained grants from The State Water Resource Control Board to upgrade old main lines and upsize lines 2025 5SSO10729 5F 616 17-MAR-26 Municipal(Public) 8325 1 2 1 1 1 0 0 0 0 2 1 25.5 0 0 0 0 0 100 100 0 0 0 0 0 100 100 15 15 Lower only 8 9 5 15 40 10 15 5 2 0 100 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 4 1 10 10 5SSO10729 City Of Woodlake CS, 350 North Valencia Boulevard, Woodlake, CA 93286 WWTP same agency N N none none N none none N none none N none none N none none none 2 0 0 Y Y Debris from Lateral Gravity Mainline none City has obtained grants from The State Water Resource Control Board to upgrade old main lines and up size lines 2023 8SSO10601 8 616 18-DEC-25 School 15000 0 0 0 0 0 0 0 0 0 0 N/A 0 2.5 38 38 24 0 0 0 100 0 0 0 0 0 0 0 3 3 Upper and Lower 3 0 85 10 0 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 362363001 San Bernardino MWD Wellhead Treatment Systems, Multiple Locations , San Bernardino, CA WWTP other agency N N/A 0 0 0 Y Y Other (specify below) There were no spills at all. Other (specify below) Not applicable since there were no spills and thus no infrastructure failures this year. N/A N/A 2024 8SSO10601 8 616 18-DEC-25 School 15000 0 0 0 0 0 0 0 0 0 0 N/A 0 2.5 38 38 24 0 0 0 100 0 0 0 0 0 0 0 3 3 Upper and Lower 3 0 85 10 0 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 362363001 San Bernardino MWD Wellhead Treatment Systems, Multiple Locations , San Bernardino, CA WWTP other agency N N/A 0 0 0 Y Y Other (specify below) There were no spills. Other (specify below) There were no spills. N/A N/A 2025 8SSO10601 8 616 16-MAR-26 School 15000 0 0 0 0 0 0 0 0 0 0 N/A 0 2.5 38 38 24 0 0 0 100 0 0 0 0 0 0 0 3 3 Upper and Lower 3 0 85 10 0 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 362363001 San Bernardino MWD Wellhead Treatment Systems, Multiple Locations , San Bernardino, CA WWTP other agency N N/A 0 0 0 Y Y Other (specify below) There were no spills. Other (specify below) There were no spills. N/A N/A 2023 9SSO10676 9 616 26-MAR-24 Municipal(Public) 108392 0 18 2 2 4 7 6 4 0 0 6 264 2 83 10 3 2 0 100 20 12 68 0 0 0 100 20981 3 None 0 2 32 37 25 4 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 0 0 0 0 0 0 2 2 297 40 9SS010676 Meadowlark Reclamation Facility 7941 Corintia St, Carlsbad, CA 92009 WWTP same agency Encina Wastewater Authority 6200 Avenida Encinas, Carlsabad , CA 92011 WWTP other agency N N 2 0 4 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Siphon No ongoing spill investigations. Our Engineering Department is working with a consultant on a design for a parallel siphon to increase capacity. 2024 9SSO10676 9 616 22-DEC-25 Municipal(Public) 113500 0 15 1 1 3 5 5 3 0 0 6 269 2 83 10 3 2 0 100 20 12 68 0 0 0 100 21003 6 None 0 3 32 37 25 3 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 0 0 0 0 0 0 2 2 328 43 9 000000247 Meadowlark WRF, 7941 Corintia Street, Carlsbad, CA 92009 WWTP same agency Encina Wastewater Authority 6200 Avenida Encinas, Calrsbad CA 92011 WWTP other agency N 2 0 4 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) None Budgeted for stainless steel units to replace plastic ones. 2025 9SSO10676 9 616 26-MAR-26 Municipal(Public) 115000 2 17 1 2 4 5 5 3 0 0 7.9 269 2 79 13 5 1 0 100 24 11 65 0 0 0 100 21125 6 None 0 4 32 35 26 3 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 1 0 0 0 0 0 0 2 2 283 43 9SSO10676 Meadowlark Reclamation Facility 7941 Corintia St, Calrsbad CA 62009 WWTP same agency Encina Wastewater Authority 6200 Avenida Encinas, Calrsbad CA 92011 WWTP other agency N N City if Carlsbad 9SSO11209 N Buena Sanitation District 9SSO10700 3 0 6 Y Y Pipe Structural Problem/Failure - Installation Spill occurred due to damaged service pipe off of force main to airvac, likely happened during backfill. Other (specify below) Line that branches off force main and leads to airvac. none Repairs were made. 2023 8SSO10603 8 616 28-MAR-24 Municipal(Public) 3215059 0 3 1 2 2 1 1 1 0 0 NA 23 49 0 0 9 36 55 0 100 0 0 0 100 0 0 100 36 0 None 0 0 46 50 4 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 2 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP other agency N NA NA NA 7 21 13 Y Y Damage by Others Not Related to Collection System Construction/Maintenance NA Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA No ongoing spill investigations. No actions taken. 2024 8SSO10603 8 616 31-MAR-26 Municipal(Public) 3215059 0 3 1 2 2 1 1 1 0 0 23 49 0 0 9 36 55 0 100 0 0 0 100 0 0 100 36 0 None 0 0 46 50 4 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9.9 13.3 8SSO10640 Orange County Sanitation District WWTP other agency N N N NA NA N NA NA N NA NA N NA NA 8 7 13 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Air Relief Valve (ARV)/ Blow-Off Valve (BOV) No on-going spill investigations. Condition Assessment conducted on 7 mile portion of system and a Condition Assessment conducted on a 2 mile portion of system. 2025 8SSO10603 8 616 01-APR-26 Municipal(Public) 3215059 0 3 1 2 2 1 1 1 0 0 23 49 0 0 9 36 55 0 100 0 0 0 100 0 0 100 36 0 None 0 1 47 49 3 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6.1 6.3 8SSO10640 Orange County Sanitation District WWTP other agency N 8 7 13 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Air Relief Valve (ARV)/ Blow-Off Valve (BOV) No on-going spill investigations. Implementing recommendation from Condition Assessment to install two addition manholes to provide greater access for cleaning and inspection. 2023 9SSO10675 9 616 21-MAR-24 Municipal(Public) 4615 3 3 1 1 3 0 1 0 0 2 0 5 50 20 70 10 0 0 0 100 100 0 0 0 0 0 100 2361 0 None 0 80 0 0 20 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 0 2 10 9SSO10675 Lower Moosa Canyon Reclamation Facility SSS same agency N 3 0 0 Y Y Debris from Construction Manhole No ongoing spill investigations at this time. Have all collection lines videoed during and after construction is completed of new lines. 2024 9SSO10675 9 616 23-DEC-25 Municipal(Public) 1264 1 4 1 1 3 0 1 0 0 2 5.9 35.6 20 70 10 0 0 0 100 100 0 0 0 0 0 100 1264 0 None 0 80 0 0 20 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 0 2 8 9 000000236 Lower Moosa Canyon Recl Facil, 8711 Circle R Drive, Escondido, CA 92026 WWTP same agency N N N oo 00 N 00 00 N 00 00 N 00 00 3 2 0 Y Y Construction Diversion Failure Upper Lateral 0 0 2025 9SSO10675 9 616 20-MAR-26 Municipal(Public) 2361 0 6 1 1 2 1 1 0 0 2 5 50 20 70 10 0 0 0 100 100 0 0 0 0 0 100 2361 0 None 0 80 0 0 20 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 0 2 10 9 000000236 Lower Moosa Canyon Recl Facil, 8711 Circle R Drive, Escondido, CA 92026 SSS same agency N 3 0 0 Debris from Construction Manhole No ongoing spill investigations at this time. Have all collection lines videoed during and after construction is completed of new lines. 2023 9SSO10674 9 616 22-APR-24 Municipal(Public) 172199 3 13 1 1 6 10 6 13 0 0 The total number of CWEA certifications are for Collections, Mechanical Technologist, and Electrical/Instrumentation. 30 480 15 69 12 2 1 1 100 11 7 22 49 11 0 100 43288 0 None 0 1 16 41 31 8 2 1 0 0 100 1 2 9 11 2 1 0 0 0 26 1 0 1 6 0 0 0 0 0 8 10 334 27 937i005757 San Luis Rey WWTP, 3950 N. River Rd,. Oceanside CA 92058 WWTP same agency 937i005759 City of Oceanside La Salina WW, 1330 S. Tait St., Oceanside CA 92054 WWTP same agency Y N Rainbow Municipal Water District 9SSO10687 N Fallbrook Public Utilites District 9000000115 N City of Vista 9SSO10660 0 30 8 2 Y Y Pump Station Failure - Power Station failure due to flooding from Buena Vista Creek (04/10/2020) Pump Station - Power Buena Vista Creek levee failed and flooded our lift station... knocking out power and submerging the 5 pumps. We lost all pumping capabilities and this resulted in a substantial spill (04/10/2020). Buena Vista spill from April 2020 Ongoing 2024 9SSO10674 9 616 08-MAY-25 Municipal(Public) 170020 7 32 3 2 9 13 5 14 0 0 The total number of CWEA certifications are for Collections, Mechanical Technologists, and Electrical/Instrumentation. 30 480 15 69 12 2 2 0 100 11 7 22 49 11 0 100 43288 0 None 0 1 16 41 31 8 2 1 0 0 100 3 2 9 9 2 1 0 0 0 26 1 0 1 6 0 0 0 0 0 8 10 328.6 28.1 9371005757 San Luis Rey WWTP, 3950 N. River Rd. Oceanside CA 92058 WWTP same agency 9371005759 La Salina WWTP, 1330 S. Tait St., Oceanside CA 92054 WWTP same agency Y N Rainbow Municipal Water District 9SSO10687 N Fallbrook Public Utilities 9000000115 N City of Vista 9SSO10660 0 30 8 2 N Y Other (specify below) No major spills during this period Other (specify below) No major failures during this period None at this time Routine maintenance and repairs 2025 9SSO10674 9 616 23-APR-26 Municipal(Public) 170020 4 36 3 2 14 13 3 18 0 0 The total number of CWEA certifications is for Collections, Mech Tech, and Electrical / Instrumentation 16 444 15 69 12 2 2 0 100 11 7 22 49 11 0 100 38203 0 None 0 1 16 41 31 8 2 1 0 0 100 3 2 9 9 2 1 0 0 0 26 2 0 1 4 0 0 0 0 0 7 10 325 29 9 000000146 La Salina WWTP, Oceanside Ocean Outfall, 1330 South Tait Street, Oceanside, CA 92054 WWTP same agency 9 000000146 La Salina WWTP, Oceanside Ocean Outfall, 1330 South Tait Street, Oceanside, CA 92054 WWTP same agency Y N Rainbow Municipal Water District 9SSO10687 N Fallbrook Public Utilities 9000000115 N City of Vista 9SSO10660 0 30 8 2 N Y Other (specify below) No major spills during this period (all less than 1,000gals) Other (specify below) No major failures during this period None at this time Routine maintenance and repairs 2023 5SSO10756 5F 616 27-MAR-24 Municipal(Public) 400 3 1 1 1 0 0 0 0 0 1 1 2 0 100 0 0 0 0 100 100 0 0 0 0 0 100 261 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 0 5d150303029 Kern Cnty CSA 39.8-Reeder Tract, 2150 Edith Street, Lake Isabella, CA 93240 WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline NA NA 2024 5SSO10756 5F 616 25-FEB-26 Municipal(Public) 400 3 2 1 1 2 0 0 0 0 2 1 2 0 100 0 0 0 0 100 100 0 0 0 0 0 0 261 0 None 0 0 2 98 10 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 5d150303029 Kern Cnty CSA 39.8-Reeder Tract, 2150 Edith Street, Lake Isabella, CA 93240 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline NA NA 2025 5SSO10756 5F 616 25-FEB-26 Municipal(Public) 400 0 4 1 1 1 0 0 0 0 3 1 2 0 100 0 0 0 0 100 100 0 0 0 0 0 100 261 0 None 0 0 5 80 15 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 .5 5d150303029 Kern Cnty CSA 39.8-Reeder Tract, 2150 Edith Street, Lake Isabella, CA 93240 WWTP same agency N N 0 0 0 Y Y Debris-General Gravity Mainline NA NA NA 2023 9SSO10673 9 616 30-OCT-24 Municipal(Public) 159 0 29 3 5 0 5 1 0 0 0 N/A .6 3 46 54 0 0 0 0 100 100 0 0 0 0 0 100 97 0 None 0 0 13 0 27 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 3 1.8 9 000000109 Julian Water Pollution Facility, 2840 Hwy 78 , Julian, CA 92036 WWTP same agency N N/A 4 0 0 N Y Root Intrusion N/A Gravity Mainline N/A None See Attachment 2024 9SSO10673 9 616 01-APR-25 Municipal(Public) 159 0 28 2 5 0 5 0 2 0 0 N/A .6 3 46 54 0 0 0 0 100 100 0 0 0 0 0 100 97 0 None 0 0 13 0 27 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 3 1.8 9 000000109 Julian Water Pollution Facility, 2840 Hwy 78 , Julian, CA 92036 WWTP same agency N N/A 4 0 0 N Y Root Intrusion N/A Gravity Mainline N/A None See Attachment 2025 9SSO10673 9 616 27-MAR-26 Municipal(Public) 159 1 14 3 5 1 1 0 2 0 0 N/A .6 3 46 54 0 0 0 0 100 100 0 0 0 0 0 100 97 0 None 0 0 13 0 27 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 3 1.8 9 000000109 Julian Water Pollution Facility, 2840 Hwy 78 , Julian, CA 92036 WWTP same agency N N/A 4 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A None See Attachment. 2023 5SSO10757 5F 616 27-MAR-24 Municipal(Public) 25227 1 7 1 0 0 0 0 0 0 0 Certified through the State Water Resources Control Board as Wastewater Treatment Operators Grade III (3); Grade II (2) & Grade 1 (1) 2 78 30 42 26 3 0 0 100 23 58 18 0 0 0 100 6240 0 None 0 4 8 5 10 37 23 9 4 0 100 0 0 0 1 0 0 0 0 0 1 0 3 1 0 0 0 0 0 0 4 0 90 2 5SSO10757 Reedley, City Of CS, 845 G Street, Reedley, CA 93654 WWTP same agency N 1 2 1 Y Y Other (specify below) WWTP Generator breakers did not switch over upon utility power outage. Pump Station - Power The Influent Pump Station (IPS) is located within the WWTP. When the generator failed to transfer power to the Plant (IPS) when the Utility Power went out, the sewer in the main sewer line entering the Plant backed up and caused the spill. Continuously looking at options to improve and prevent such spill occurrences. In 2024 the Olson Sewer Main entering the Plant will be upsized and replaced from where it was left off in 2016. The existing siphon will be abandoned with the installation of the new line. The option of installing some type of catch basin where most sewer spills that occur at Cricket Hollow Park and enter the Kings River are being evaluated. 2024 5SSO10757 5F 616 20-FEB-25 Municipal(Public) 26196 2 7 1 0 0 0 0 0 0 0 WWTP Operators certified through the State Water Resources Control Board Operators: Grade III (2); Grade II (3) & Grade I OIT (1) 2 80 29 43 26 2 0 0 100 20 64 16 0 0 0 100 6441 0 None 0 4 8 5 10 36 24 9 4 0 100 0 0 0 1 0 0 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 94.4 1.4 5C10NC00167 City of Reedley Wastewater Treatment Plant: 1701 W. Huntsman Ave., Reedley, CA 93654 WWTP same agency N N/A 1 2 0 Y Y Construction Diversion Failure Gravity Mainline No ongoing spills investigations taking place. Construction job was completed. In 2024 the Olson Sewer Upgrade was completed. The existing 21 main sewer line with a siphon was abandoned. Any sewer lines serving a Mobile Home Park and a Public Park Restroom were diverted and tied into the new sewer main. 2025 5SSO10757 5F 616 20-FEB-26 Municipal(Public) 26196 1 7 1 0 0 0 0 0 0 0 WWTP Operators are certified through the State Water Resources Control Board; Operators: Grade III (2); Grade II (3); & Grade (1). 2 80 30 43 26 1 0 0 100 20 64 16 0 0 0 100 6447 0 None 0 5 10 5 10 36 23 9 4 0 100 0 0 0 1 0 0 0 0 0 1 2 2 1 0 0 0 0 0 0 5 2 89 .3 5C10NC00167 Reedley WWTP; 1701 W. Huntsman Ave. Reedley CA WWTP same agency N N/A 1 2 0 Y Y Other (specify below) Did not have any sanitary sewer spills in 2025. Other (specify below) None None N/A 2023 8SSO10608 8 616 25-MAR-24 Municipal(Public) 62500 0 6 1 1 2 3 0 0 0 8 11 5 0 7 33 60 0 0 100 1 0 99 0 0 0 100 25001 0 None 0 0 1 0 99 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 3 0 0 0 0 0 3 6 0 0 7A360100011 BB Reg WWA-Lucerne Vly, 122 Palomino Drive, Big Bear City, CA 92314 SSS same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Installation Force Main None. None. 2024 8SSO10608 8 616 19-DEC-25 Municipal(Public) 62500 0 6 1 1 4 5 0 0 0 8 11 5 0 7 33 60 0 0 100 1 0 99 0 0 0 100 25001 0 None 0 0 1 0 99 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 3 0 0 0 0 0 3 6 0 0 7A360100011 BB Reg WWA-Lucerne Vly, 122 Palomino Drive, Big Bear City, CA 92314 SSS same agency 8 360108001 Baldwin Lake, null SSS same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Installation Force Main None Replacing 1100 feet of 16 force main this year. 2025 8SSO10608 8 616 16-MAR-26 Municipal(Public) 62500 1 6 1 1 4 5 0 0 0 9 10.6 4.8 0 7 33 60 0 0 100 1 0 99 0 0 0 100 0 0 None 0 1 1 0 98 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 3 0 0 0 0 0 3 6 4.8 4.8 7A360100011 BB Reg WWA-Lucerne Vly, 122 Palomino Drive, Big Bear City, CA 92314 WWTP same agency 8 360108001 Baldwin Lake, null SSS same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Installation Force Main None. Replaced 960 feet of 16 inch force main. 2023 9SSO10669 9 616 28-MAR-24 Municipal(Public) 53677 0 23 5 2 5 8 7 3 0 1 5 128 1 80 17 2 0 0 100 0 7 2 91 0 0 100 12001 0 None 71 0 18 38 43 0 0 0 0 1 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 60 8 8 302006002 Los Alisos WRP, 22312 Muirlands Lake Forest, CA, 92630 WWTP other agency Y Y Santa Margarita WD 9SSO10697 114 2 4 Y Y Root Intrusion Gravity Mainline None. Added areas to high maintenance cleaning schedule and root treatment program. 2024 9SSO10669 9 616 31-MAR-25 Municipal(Public) 55030 2 34 7 2 1 8 7 3 0 2 5 129 1 80 17 2 0 0 100 0 7 8 91 0 0 100 12057 0 None 71 3 15 38 43 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 31 7 8 302006002 001, , CA WWTP other agency Y N Santa Margarita WD 9SSO10697 114 2 4 Y Y Root Intrusion Gravity Mainline None. Added areas to high maintenance cleaning schedule and root treatment program. 2025 9SSO10669 9 616 01-APR-26 Municipal(Public) 55030 10 26 7 2 12 6 2 3 0 0 E&I Grade 2 - 4 persons, E&I Grade 3 - 2 persons, E&I Grade 4 - 4 persons Mech Grade 3 - 2 persons, Mech Grade 4 - 1 person 5 129 1 80 17 2 0 0 100 0 7 2 91 0 0 100 12575 0 None 73 4 15 37 43 0 0 0 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62 4 8 302006002 Los Alisos WD WWTP WWTP same agency Y N Santa Margarita WD 9SSO10697 114 2 4 Y Y Other (specify below) None. Other (specify below) None. None. None. 2023 9SSO10668 9 616 03-APR-24 Municipal(Public) 149500 5 19 4 4 3 7 7 8 0 0 N/A 8 376 11 70 12 6 1 0 100 36 25 39 0 0 0 100 27514 37 None 1 1 10 33 35 10 2 0 0 9 100 0 0 5 2 0 0 0 0 0 7 0 1 1 1 0 0 0 0 0 3 11 252 26 9000000031 1521 S Hale Ave., Escondido, CA 92029 WWTP same agency N N/A 43 0 18 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Gravity Mainline Aging infrastructure in need of replacement. N/A Design and construction of gravity mainline replacement. 8,452ft. of failing trunk line was or is currently in the process of being replaced. All 3,605ft. of Escondido's oldest gravity sewer mainlines, is in the final stages of bidding to be replaced in the next fiscal year. 2024 9SSO10668 9 616 27-MAR-25 Municipal(Public) 147158 6 18 4 4 5 3 5 7 0 0 N/A 8.1 370 11 70 12 6 1 0 100 36 25 39 0 0 0 100 27588 37 None 1 1 10 33 35 10 2 0 0 9 100 0 1 5 2 0 0 0 0 0 8 0 1 1 1 0 0 0 0 0 3 11 239 35 9 000000031 1521 S Hale Ave, Escondido CA 92029 WWTP same agency N N/A 54 0 25 Y Y Root Intrusion Root intrusion, grease, rags. Notification system for public /citizens needed to be simplified to improve response time. Other (specify below) RCP Trunk line in process of getting replaced, 5 % may need to go out to bid. Alley project is still on the prosses of getting replaced. All spills have been investigated at this point. I&I program/ flow monitoring as well as smoke testing will be one of the items we will addressing in house or by contractor. Notification system for public/citizens was simplified to improve response time. Trunk sewer replacement project continues. Manhole relining project continues, with approximately 12 completed per year. 2025 9SSO10668 9 616 23-MAR-26 Municipal(Public) 148847 10 19 4 4 6 8 4 9 0 0 N/A 8.1 370.3 10 70 12 7 1 0 100 36 25 39 0 0 0 100 27765 38 None 1 1 10 34 34 10 2 0 0 9 100 0 1 5 2 0 0 0 0 0 8 0 1 1 1 0 0 0 0 0 3 11 223.2 37.2 9 000000031 HARRF- 1521 S. Hale Avenue Escondido, CA 92029 WWTP same agency N N/A 54 0 25 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline Aging infrastructure still in need of replacement that were installed in the 1920-1939. N/A We have an ongoing in progress project where over the past few years, our team has replaced 6,400 feet of aging wastewater infrastructure, representing an investment of approximately $20.8 million. This work will greatly reduce the likelihood of major sewer spills and improve system reliability. Collection staff has addressed multiple mainline failures and repaired failure points. Collection system manholes were lined to reduce I& I within our system. 2023 5SSO10759 5F 616 25-MAR-24 Municipal(Public) 973 0 0 1 0 0 0 0 0 0 0 0 6 25 70 5 0 0 0 100 0 0 100 0 0 0 100 415 415 Lower only 4 0 0 26 74 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5D150118002 Stallion Springs WWTF, 28500 Stallion Springs Dr, Tehachapi, CA WWTP same agency N 1 0 0 N Y Fats, Oil and Grease (FOG) Lower Lateral None We continue to identify problems and address them as we are able to. 2024 5SSO10759 5F 616 16-MAR-26 Municipal(Public) 975 0 0 1 0 0 0 0 0 0 0 .2 5.7 25 70 5 0 0 0 100 0 0 0 0 0 0 419 1333 Lower only 4.6 0 0 26 74 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5D150118002 Stallion Springs Community Services District Wastewater Treatment Facility WWTP same agency N 1 0 0 N Y Root Intrusion Gravity Mainline n/a n/a 2025 5SSO10759 5F 616 16-MAR-26 Municipal(Public) 975 0 0 1 0 0 0 0 0 0 0 .2 5.7 25 70 5 0 0 0 100 0 0 100 0 0 0 100 419 1333 Lower only 4.6 0 0 26 74 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5D150118002 001, , Tehachapi, CA WWTP same agency N 1 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline N/A N/A 2023 8SSO10611 8 616 02-APR-24 Prison 445 0 7 1 0 5 1 1 0 0 1 None 0 1 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 20 Upper and Lower 1 0 0 10 60 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 1 0 0 8SSO11146 Lytle Creek North Wastewater Recycling Plant 18101 Institution Rd., Lytle Creek, Ca 92402 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, rags, fats, oil and grease Other (specify below) Manholes, laterals None None 2024 8SSO10611 8 616 04-DEC-25 Prison 445 1 9 1 0 5 2 1 0 0 0 None 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 20 Upper and Lower 1 0 0 10 60 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 8 362899001 Lytle Creek North Wastewater Recycling Plant 18101 Institution Rd., Lytle Creek, Ca 92402 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, rags, fats, oil, and grease Other (specify below) Manholes, laterals None None 2023 9SSO10667 9 616 02-APR-24 Municipal(Public) 35327 0 6 2 1 1 3 0 1 0 0 4 8 47 44 8 1 0 0 100 22 7 71 0 0 0 100 5076 0 None 0 5 5 25 35 30 0 0 0 0 100 1 0 0 2 0 0 0 0 0 3 0 0 0 2 0 0 0 0 0 2 0 47 11 9SSO10667 200 Block N. Main Ave, 200 Block North Main Avenue, Fallbrook, CA 92028 WWTP other agency N 23 1 0 Y Y Root Intrusion Gravity Mainline none chemical root control program, gravity main relining CIP annually, routine hydraulic cleaning 2024 9SSO10667 9 616 27-JAN-26 Municipal(Public) 32467 0 5 1 1 0 2 1 2 0 0 N/A 4.3 79.4 47 45 8 0 0 0 100 21 8 71 0 0 0 100 5090 0 None 0 5 5 25 35 30 0 0 0 0 100 1 0 0 2 0 0 0 0 0 3 0 0 0 2 0 0 0 0 0 2 0 48.9 12.4 9000000115 1425 S. ALTURAS RD, FALLBROOK CA 92028 WWTP same agency N N/A 23 1 0 Y Y Debris from Lateral ROOT BLOCKAGE UPSTREAM FROM LATERAL CAUSED BLOCKAGE IN MANHOLE INVERT CREATED SSO. Lower Lateral PRIVATELY OWNED SEWER LATERAL NONE CHEMICAL ROOT CONTROL PROGRAM, GRAVITY MAIN RELINING CIP ANNUALLY ROUTINE HYDRAULIC CLEANING, SMART COVER 2025 9SSO10667 9 616 10-FEB-26 Municipal(Public) 32467 1 5 1 1 0 2 1 2 0 0 N/A 4.3 79.4 47 45 8 0 0 0 100 21 8 71 0 0 0 100 5090 0 None 0 5 5 25 35 47 0 0 0 0 100 1 0 0 2 21 0 0 0 0 3 4 0 0 2 21 0 0 0 0 2 0 69.6 20.3 9 000000115 Fallbrook Public Utility District Outfall 001, , CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA N/A 23 2 0 N Y Other (specify below) None – no Category 1 (major) spills occurred during the reporting period. Other (specify below) None None None 2023 5SSO10760 5S 616 28-MAR-24 Other 11180 4 2 2 1 0 0 0 0 0 0 None 1 4 58 26 15 0 0 0 100 100 0 0 0 0 0 100 36 36 Upper and Lower 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 1 266737 Turlock Regional Water Quality Control Facility SSS other agency N N Thornburg N/A 4 0 0 Y Y Other (specify below) No major spills occurred. Pump Station - Controls Entire pump station was upgraded None Repair was made at Corporation yard to fix backup issues 2023 9SSO10666 9 616 05-JAN-26 Municipal(Public) 1502 0 3 1 1 1 0 0 2 0 1 na .7 16 0 100 0 0 0 0 100 100 0 0 0 0 0 100 617 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 3 4.3 3 9 000000257 Fairbanks Ranch CS, 605 Third Street, Encinitas, CA 92024 WWTP same agency N NA NA NA NA NA NA NA NA NA na 0 0 0 N Y Debris-General na Gravity Mainline na none none 2024 9SSO10666 9 616 05-JAN-26 Municipal(Public) 1502 0 3 1 1 1 0 0 2 0 1 .7 16 0 100 0 0 0 0 100 100 0 0 0 0 0 100 617 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 3 6.1 4 9 000000257 Fairbanks Ranch CS, 605 Third Street, Encinitas, CA 92024 WWTP same agency N NA NA NA NA NA NA NA na NA NA 0 0 0 N Y Debris-General na Gravity Mainline na none none 2023 8SSO10613 8 616 28-MAR-24 Municipal(Public) 155000 4 3 1 1 5 4 1 2 1 0 17 419 4 76 14 4 2 0 100 39 5 56 0 0 0 100 4000 0 None 0 1 40 42 17 0 0 0 0 0 100 0 8 17 1 0 0 0 0 0 26 1 3 6 1 0 0 0 0 0 11 0 136 46 8SSO10613 STP,Horsethief Canyon Plant CS, P.O. Box 3000 , Lake Elsinore, CA 92531 WWTP same agency N 0 10 2 Y Pipe Structural Problem/Failure - Installation Force Main None Replaced of failed pipe sections of force main and continued line cleaning / CCTV activities 2024 8SSO10613 8 616 26-JAN-26 Municipal(Public) 99222 4 3 1 1 5 1 0 2 0 0 N/A .5 18.2 0 95 5 0 0 0 100 100 0 0 0 0 0 100 2041 0 None 0 0 31 69 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2 0 0 0 8 330112003 EVMWD Horsethief Canyon WWTP, 13200 Shotgun Trail, Corona, CA 92883 SSS same agency N 0 0 0 Y Y Other (specify below) No spills Other (specify below) No fail points NONE N/A 2025 8SSO10613 8 616 29-APR-26 Municipal(Public) 7834 4 3 1 1 5 1 0 2 0 1 N/A .5 18.2 0 95 5 0 0 0 100 100 0 0 0 0 0 100 2041 0 None 0 0 31 69 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2 0 0 0 8SSO10613 STP, Horsethief Canyon Plant CS SSS same agency N N/A 0 0 0 Y Y Other (specify below) No Spills Other (specify below) No failure point None Performed ongoing line cleaning and CCTV inspection activities. 2023 8SSO10614 8 616 04-DEC-25 Municipal(Public) 1477 0 6 1 0 5 1 1 0 0 1 None 5 11 0 0 0 0 0 100 100 0 0 0 0 0 100 100 622 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 35 2 2 8 362200001 CSA 70-S3 (Lytle Creek) CS, , Lytle Creek, CA WWTP same agency N None 2 1 0 N Y Debris-General None Manhole None None Regular cleaning and CCTV 2024 8SSO10614 8 616 04-DEC-25 Municipal(Public) 1480 7 7 1 0 5 2 1 0 0 0 None 5 11 0 0 0 0 0 100 100 0 0 0 0 0 100 100 622 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 100 35 2 2 8 362200001 CSA 70-S3 (Lytle Creek) CS, Lytle Creek, CA WWTP same agency N None 2 1 0 N Y Debris-General None Manhole None None Regular cleaning and CCTV 2023 9SSO10662 9 616 30-OCT-24 Municipal(Public) 199000 0 29 3 5 0 5 1 0 0 0 N/A 7.7 409 4 78 12 4 2 0 100 54 0 26 20 0 0 100 35657 0 None 0 7 25 56 7 0 0 0 0 5 100 0 1 2 1 0 0 0 0 0 4 0 0 4 0 0 0 0 0 0 4 0 166 12.9 9 000000275 Point Loma WWTP & Ocean Outfall 001, , CA WWTP other agency Y N City of San Diego 9SSO10658 N City of Chula Vista 9SSO10646 N City of Lemon Grove 9SSO10654 N City of National City 9SSO10655 N City of La Mesa 9SSO10652 None of the listed sewer agencies are owned by SDCSD: Otay Water District, WDID: 9SSO10679, Padre Dam Water District, WDID 9SSO10680 50 1 2 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Manhole N/A None See Attachment 2024 9SSO10662 9 616 01-APR-25 Municipal(Public) 199000 0 28 2 5 0 5 0 2 0 0 N/A 7.7 409 4 78 12 4 2 0 100 54 0 26 20 0 0 100 35657 0 None 0 7 25 56 7 0 0 0 0 5 100 0 1 2 1 0 0 0 0 0 4 0 0 4 0 0 0 0 0 0 4 0 166 12.9 9 000000275 Point Loma WWTP & Ocean Outfall 001, , CA WWTP other agency Y N City of San Diego 9SSO10658 N City of Chula Vista 9SSO10646 N City of Lemon Grove 9SSO10654 N City of National City 9SSO10655 N City of La Mesa 9SSO10652 None of the listed sewer agencies are owned by SDCSD: Otay Water District, WDID: 9SSO10679, Padre Dam Water District, WDID 9SSO10680 50 1 2 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Manhole N/A None See attachment 2025 9SSO10662 9 616 27-MAR-26 Municipal(Public) 180000 1 14 3 5 1 1 0 2 0 0 N/A 7.7 409 4 78 12 4 2 0 100 54 0 26 20 0 0 100 35657 0 None 0 7 25 56 7 0 0 0 0 5 100 0 1 2 1 0 0 0 0 0 4 0 0 4 0 0 0 0 0 0 4 0 148.9 4.9 9 000000275 Point Loma WWTP & Ocean Outfall 001, , CA WWTP other agency Y N City of San Diego 9SSO10658 N City of Chula Vista 9SSO10646 N City of Lemon Grove 9SSO10654 N City of National City 9SSO10655 N City of La Mesa 9SSO10652 None of the listed sewer agencies are owned by SDCSD; Otay Water District, WDID: 9SSO10679; Padre Dam Water District, WDID 9SSO10680 50 1 2 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Manhole N/A None See Attachment. 2023 9SSO10660 9 616 27-MAR-24 Municipal(Public) 90000 4 9 1 1 8 3 1 0 0 0 All certified through CWEA. 3 213 8 79 10 2 0 1 100 0 36 0 0 0 64 100 17396 0 None 0 2 14 36 41 5 2 0 0 0 100 0 2 1 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 10 196 24 9SSO11209 City of Carlsbad, CA 92008 SSS other agency UNKNOWN City of Oceanside, CA SSS other agency 9SSO10700 Buena Sanitation District, Vista, CA 92084 SSS other agency Y N City of Oceanside Unknown N City of Carlsbad 9SSO11209 N Vallecitos Municipal Water District Unknown Y Buena Sanitation District 9SSO10700 NA 1 1 1 Y Y Debris from Construction Contractor left plug in our sewer system causing backup and spill event. Rags can also be a major cause of spills. Gravity Mainline Public mainline. No. Continuous capital improvement projects for lining and some upsizing where needed. 2025 9SSO10660 9 616 30-MAR-26 Municipal(Public) 90200 3 11 1 1 7 5 1 0 0 0 All certified through CWEA. 3 213 8 79 10 2 0 1 100 0 36 0 0 0 64 100 17308 0 None 0 2 14 36 41 5 2 0 0 0 100 0 2 1 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 4 142.3 34.2 9371002009 Encina Wastewater Authority, 6200 Avenida Encinas, Carlsbad, CA 92011 WWTP other agency UNKNOWN City of Oceanside, CA SSS other agency 9SSO10700 Buena Sanitation District, Vista, CA 92084 SSS other agency Y N City of Oceanside Unknown N City of Carlsbad 9SSO11209 N Vallecitos Municipal Water District Unknown Y Buena Sanitation District 9SSO10700 NA 1 1 1 Y Y Pump Station Failure - Mechanical Spills involved root intrusion, mechanical failure, pipe structure problems and debris. Gravity Mainline Gravity mains and pump station. None Vista is planning to CIPP line pipes that cross over creeks. 2023 9SSO10658 9 616 25-MAR-24 Municipal(Public) 2323721 56 99 39 5 1 14 4 16 0 2 N/A 113 3068 4 70 18 5 3 0 100 13 13 44 13 17 0 100 267796 0 None 0 0 21 24 34 18 1 0 0 2 100 0 9 18 6 4 1 0 0 0 38 0 2 20 13 8 0 0 0 0 43 218 986 151 R9-2022-0078 Point Loma Wastewater Treatment Plant WWTP same agency R9-2021-0011 South Bay Water Reclamation Plant WWTP same agency N N El Cajon 9SSO10649 N Chula Vista 9SSO10646 N Poway 9SSO16056 N Del Mar 9SSO10648 N Coronado 9SSO10647 La Mesa - 9SSO10652; Padre Dam MWD - 9SSO10680; Lemon Grove - 9SSO10654; Otay WD - 9SSO10679; National City - 9SSO10655; Imperial Beach - 9SSO10651; San Diego County Sanitation District -(Alpine/ Campo/ East Otay Mesa/ Julian/Lakeside/ Pine Valley/ Spring Valley/ Winter Gardens) -9SSO10662 18 9 34 Y Y Root Intrusion grease accumulation, debris from construction, vandalism, air relief valve, debris Gravity Mainline Air Relief Valve, force main, lower lateral, manhole, pump station controls 1/22/24 and 2/6/24 spills See Attachment 2024 9SSO10658 9 616 25-MAR-25 Municipal(Public) 2300000 31 134 39 5 0 16 5 17 0 2 N/A 113 2986.7 4 70 18 5 3 0 100 13 14 43 13 17 0 100 265001 0 None 0 1 32 24 29 11 1 0 0 2 100 0 6 26 14 8 0 0 0 0 54 0 5 12 5 4 1 0 0 0 27 218 994.4 145.4 9000000275 Point Loma Wastewater Treatment Plant, 1902 Gatchell Rd, San Diego, CA 92106 WWTP same agency 9000000900 South Bay Water Reclamation Plant, 2411 Dairy Mart Rd, San Diego, CA 92154 WWTP same agency 9000003344 North City Water Reclamation Plant, 4950 Eastgate Mall, San Diego, CA 92121 WWTP same agency N N El Cajon 9SSO10649 N Chula Vista 9SSO10646 N Poway 9SSO16056 N Del Mar 9SSO10648 N La Mesa 9SSO10652 Padre Dam MWD - 9SSO10680; Lemon Grove - 9SSO10654; Otay WD - 9SSO10679; National City - 9SSO10655; Imperial Beach - 9SSO10651; San Diego County Sanitation District -(Alpine/ Campo/ East Otay Mesa/ Julian/Lakeside/ Pine Valley/ Spring Valley/ Winter Gardens) -9SSO10662 18 9 30 Y Y Root Intrusion grease accumulation, vandalism, main breaks, debris Gravity Mainline Air Relief Valve, force main, lower lateral, manhole, pump station controls No See Attachment 2023 8SSO10620 8 616 28-MAR-24 Municipal(Public) 155000 4 3 1 1 5 4 1 2 0 1 N/A 17 419 4 76 14 4 2 0 100 39 5 56 0 0 0 100 40000 0 None 0 1 40 42 17 0 0 0 0 0 100 0 8 17 1 0 0 0 0 0 26 1 3 6 1 0 0 0 0 0 11 0 136 46 8SSO10613 STP,Horsethief Canyon Plant CS, P.O. Box 3000 , Lake Elsinore, CA 92531 WWTP same agency 8SSO10620 EVMWD Regional Plant CS, , Lake Elsinore, CA 92531 WWTP same agency 9SSO11530 easement behind 24069 Manresa CT, 24069 Manresa Circle, Murrieta, CA 92562 WWTP same agency N N/A 4 1 2 Y Y Pipe Structural Problem/Failure - Installation N/A Force Main N/A N/A Replacement of failed pipe sections of force main and continued line-cleaning/CCTV activities. 2024 8SSO10620 8 616 26-JAN-26 Municipal(Public) 99222 4 3 1 1 5 4 1 2 0 1 N/A 12 315 3 77 13 4 3 0 100 32 5 63 0 0 0 100 27065 0 None 0 1 40 42 17 0 0 0 0 0 100 0 8 17 1 0 0 0 0 0 26 1 3 6 1 0 0 0 0 0 11 0 66.2 28.4 8 330112001 001, , CA SSS same agency 8 332122003 Elsinore GWZ, , CA SSS same agency N N/A 4 1 2 Y Y Debris-General Blue stone - soap deposits Gravity Mainline Blue stone - soap deposits N/A Continued line cleaning and CCTV activities. 2025 8SSO10620 8 616 29-APR-26 Municipal(Public) 99222 4 3 1 1 5 4 1 2 0 1 N/A 12 315 3 77 13 4 3 0 100 32 5 63 0 0 0 100 27065 0 None 0 1 40 42 17 0 0 0 0 0 100 0 8 17 1 0 0 0 0 0 26 1 3 6 1 0 0 0 0 0 11 0 66.2 28.4 8SSO10620 EVMWD Regional Plant CS SSS same agency 9SSO11530 Southern Section CS SSS same agency N N/A 4 1 2 Y Y Pipe Structural Problem/Failure - Installation Force Main N/A Performed ongoing line cleaning and CCTV inspection activities. 2023 5SSO10763 5F 616 04-APR-24 Other 2993 1 0 0 0 0 0 0 0 0 0 0 7 40 40 20 0 0 0 100 0 0 0 0 0 0 0 81 81 Upper and Lower 3 0 10 50 20 5 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 5SS010763 24900 Hwy 202 Tehachapi, CA 93581 WWTP same agency N N/A N/A 0 0 0 N N Debris-General N/A Gravity Mainline N/A N/A N/A 2024 5SSO10763 5F 616 16-MAR-26 Other 3597 0 0 0 0 0 0 0 0 0 0 N/A 0 7 40 40 20 0 0 0 100 0 0 0 0 0 0 0 81 81 Upper and Lower 3 0 10 50 20 5 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO10763 24900 Hwy 202 Tehachapi, CA 93581 WWTP same agency N N/A N/A 0 0 0 N N Debris-General N/A Gravity Mainline N/A No N/A 2023 8SSO10621 8 616 07-JAN-26 Municipal(Public) 20526 0 3 1 1 0 0 0 0 0 0 0 1 25 0 50 25 25 0 0 100 0 75 25 0 0 0 100 6507 0 None 33 4 43 53 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 3 6 0 0 0 0 0 0 0 9 1 6 6 8 332253001 001, , CA WWTP same agency NA NA NA N NA NA NA NA NA NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2024 8SSO10621 8 616 07-JAN-26 Municipal(Public) 20526 0 3 1 1 0 0 0 0 0 0 1 25 0 50 25 25 0 0 100 0 75 25 0 0 0 100 6507 0 None 33 4 43 53 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 3 6 0 0 0 0 0 0 0 9 1 6 6 8332253001 Temescal Valley WD Regional Plant CS, 22646 Temescal Canyon Road, Corona, CA 92883 WWTP same agency NA NA NA N NA NA NA NA NA NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 8SSO10621 8 616 16-MAR-26 Municipal(Public) 21153 0 3 1 1 0 1 0 0 0 0 CWEA 1 25 0 50 25 25 0 0 100 0 75 25 0 0 0 100 6507 0 None 33 4 43 53 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 3 6 0 0 0 0 0 0 0 9 1 6 6 8 332253001 Temescal Valley WD Regional Plant CS 22646 Temescal Canyon Road, Corona Ca. 92338 WWTP same agency NA NA NA N NA NA NA NA NA NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 5SSO10764 5F 616 25-MAR-24 Municipal(Public) 13000 2 2 1 1 0 1 1 0 0 2 0 3 44 6 69 22 3 0 0 100 0 0 3 0 0 0 3 3700 12 None 1 0 0 0 0 0 0 0 0 100 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 10 5 5SSO10764 Tehachapi, City Of CS, 115 South Robinson Street, Tehachapi, CA 93561 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y Collection System Maintenance Failure (specify below) 0 Gravity Mainline 0 0 0 2024 5SSO10764 5F 616 13-JAN-25 Municipal(Public) 10000 2 2 1 1 1 2 1 0 0 2 5 40 5 90 3 2 0 0 0 0 100 0 0 0 0 0 3000 0 None 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 5 0 5D150116001 Tehachapi WWTF, 750 Enterprise Way , Tehachapi, CA 93561 WWTP same agency N 0 0 0 N Y Debris from Lateral Gravity Mainline 0 0 2025 5SSO10764 5F 616 14-JAN-26 Municipal(Public) 13000 1 2 1 1 2 3 1 0 0 0 0 3 44 5 80 10 2 0 0 95 0 3 0 0 0 0 5 3000 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 10 1 5SS010764 Tehachapi WWTF, 750 Enterprise Way , Tehachapi, CA 93561 SSS same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 1 0 0 N Y Root Intrusion 0 Gravity Mainline 0 0 Pump being serviced for a Lift Station Pump swap this spring. 2025 5SSO10771 5F 616 23-MAR-26 Municipal(Public) 16490 0 4 1 1 0 3 1 2 0 0 n/a 12 128 45 25 30 0 0 0 100 70 30 0 0 0 0 100 6565 6140 Lower only 18 0 10 30 35 20 5 0 0 0 100 0 0 0 1 0 0 0 0 2 3 3 7 7 0 0 0 0 0 7 24 12 54 1.2 5SSO10771 Sonora Regional Waste Water Treatment Facility 1400 Southgate Dr, Sonora,CA 95370 WWTP same agency Y N Twain Harte Community Services District 5SSO10772 n/a n/a n/a n/a n/a n/a n/a n/a n/a 53 4 12 Y Y Root Intrusion FOG Accumulation Rags and Debris Vandalism Gravity Mainline n/a None We continue to assess the causes of spills using CCTV. Once the cause of the spill is determined, the most common course of action is to repair what caused the spill. Until those repairs can be made, we adjust our frequency of cleaning to prevent reoccurring spills. 2023 5SSO10772 5F 616 25-MAR-24 Municipal(Public) 2378 3 4 1 1 3 1 0 0 0 0 None 47 27 80 8 10 0 0 0 98 2 0 0 0 0 0 2 1447 10 Lower only 0 0 1 5 94 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 5 11 1 5SSO10771 drainage starting at 20525 Quail Hollow Ct, 20525 North Quail Hollow Court, Sonora, CA 95370 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 0 0 Y Y Root Intrusion NA Gravity Mainline NA None An hydraulic study has been done to locate system deficiencies, systematic approach to cleaning utilizing GIS, more cctv, root foaming, additional manhole inspections, sewer relining. 2024 5SSO10772 5F 616 09-APR-25 Municipal(Public) 2226 3 2 1 1 3 1 0 0 0 2 NA .5 27 82 8 10 0 0 0 100 100 0 0 0 0 0 100 10 0 Lower only .1 1 5 94 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 3 5 8.6 .2 5B55NC00004 Twain Harte WWTP, 22363 Longeway Road, Twain Harte, CA 95370 WWTP other agency N NA 3 0 0 Y Y Root Intrusion NA Gravity Mainline NA NA NA 2025 5SSO10772 5F 616 06-MAR-26 Municipal(Public) 2378 2 3 1 1 5 1 0 0 0 0 .3 21 82 8 10 0 0 0 100 100 0 0 0 0 0 100 1469 0 Lower only 0 0 1 5 94 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 9.9 .5 5B55NC00004 Twain Harte WWTP, 22363 Longeway Road, Twain Harte, CA 95370 WWTP other agency N NA 3 0 0 Y Y Root Intrusion NA Gravity Mainline NA NA CCTV identification of issues and additional maintenance performed. 2023 5SSO10773 5F 616 28-MAR-24 School 10593 4 7 7 4 0 0 0 0 0 0 NA 1 4 17 12 18 53 0 0 100 0 100 0 0 0 0 100 54 54 Upper and Lower 2 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 1 2 0 5C240108001 City of Merced Wastewater Treatment Facility, 1961 Gove Rd, Merced, CA 95341 WWTP other agency N N NA NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Upper Lateral NA 0 Non-flushable wipes have been the main cause of spills. Dormitory residents have been informed to stop flushing non-flushable wipes down the toilet via memos and emails. 2024 5SSO10773 5F 616 31-MAR-25 School 11041 4 7 7 4 0 0 0 0 0 0 NA 1 4 17 12 18 53 0 0 100 0 100 0 0 0 0 100 54 54 Upper and Lower 2 40 60 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 1 2 0 5C240108001 City of Merced Wastewater Treatment Facility, 1961 Gove Rd, Merced, CA 95341 WWTP other agency N N NA NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Upper Lateral NA 0 Main cause of spills are associated with the flushing/disposal of non-flushable wipes. The operations team have scheduled for the flushing of sewer lines to take place twice per year. Frequency can change if spills that are caused by flushable wipes increase. 2025 5SSO10773 5F 616 01-APR-26 School 10998 4 7 7 4 0 0 0 0 0 0 NA 1 4 17 12 18 53 0 0 100 0 100 0 0 0 0 100 54 54 Upper and Lower 2 40 60 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 1 2.2 0 5C240108001 City of Merced Wastewater Treatment Facility, 1961 Gove Rd, Merced, CA 95341 WWTP other agency N N NA NA NA 0 0 0 Y Y Pump Station Failure - Power Spills that have taken place in the past are usually caused by debris (non-flushable wipes). However, the only spill that took place in 2025 was caused by a power failure in one of the lift stations. Pump Station - Power NA 0 - No ongoing spill investigations Internal investigation was conducted in which it was discovered that a breaker inside the panel that controls the lift station was tripped. A third party contractor was hired to further identify the root cause of the failure. 2023 5SSO10774 5F 616 15-DEC-25 Municipal(Public) 1000 3 5 1 0 0 0 0 0 0 0 One Operator currently holds a Wastewater III 6 27 70 20 10 0 0 0 100 20 40 40 0 0 0 100 0 0 None 0 0 45 15 30 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 4 4 5C220701002 5083 Foresta Road El Portal, CA 95318 WWTP same agency Y Y El Portal CS 5SSO10735 0 0 3 1 Y Y Other (specify below) NA Other (specify below) NA NA NA 2024 5SSO10774 5F 616 15-DEC-25 Municipal(Public) 5200 3 5 1 0 0 0 0 0 0 0 One operator possesses a Gade III Wastewater License 6 27 70 20 10 0 0 0 100 20 40 40 0 0 0 100 0 0 None 0 6 45 15 30 10 0 0 0 0 106 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 4 4 5C220701002 5083 Foresta Road, El Portal, CA 95318 WWTP same agency Y Y El Portal CS 5SSO10735 0 0 3 1 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 5SSO10774 5F 616 16-JUN-26 Municipal(Public) 5200 3 5 1 0 0 0 0 0 0 0 One operator possesses a Grade III Wastewater License 6 27 70 20 10 0 0 0 100 20 40 40 0 0 0 100 0 0 None 0 6 45 15 30 10 0 0 0 0 106 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 4 4 5C220701002 El Portal WWTF, 5083 Foresta Road, BLDG 750 El Portal, CA 95318 WWTP same agency Y Y El Portal CS 5SSO10735 0 0 3 1 Y Y Other (specify below) NA Other (specify below) NA NA NA 2024 5SSO10775 5F 616 30-DEC-25 Prison 6000 2 3 2 1 0 1 2 0 0 4 None 0 7 15 5 75 5 0 0 100 0 0 0 0 0 0 0 114 114 Upper and Lower 1 0 2 98 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D150803003 Wasco State Prison WWTF, 701 Scofield Avenue, Wasco, CA 93280 WWTP other agency N n/a 0 0 0 Y Y Debris-Rags None Gravity Mainline None None No deficiencies at this time 2025 5SSO10775 5F 616 17-MAR-26 Prison 6000 2 3 2 1 0 1 2 0 0 4 NONE 0 7 15 5 75 5 0 0 100 0 0 0 0 0 0 0 114 114 Upper and Lower 1 0 2 98 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D150803003 Wasco State Prison WWTF, 701 Scofield Avenue, Wasco, CA 93280 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA N/A 0 0 0 Y Y Debris-Rags NONE Gravity Mainline NONE NONE No Deficiencies 2023 5SSO10776 5F 616 02-APR-24 Municipal(Public) 22500 1 1 1 1 2 0 0 0 0 2 0 1 58 5 75 15 5 0 0 100 0 75 25 0 0 0 100 5600 7 Upper and Lower 1 5 5 20 20 40 10 0 0 0 100 0 1 1 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 15 5 5sso10776 Wasco, City Of CS, , Wasco, CA 93280 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y N Other (specify below) No spills occurred in 2023. Other (specify below) No system failures occurred in 2023. 0 CCTV video inspections. 2024 5SSO10776 5F 616 28-MAR-25 Municipal(Public) 22500 0 2 1 1 1 1 0 0 0 2 0 1 58 5 75 15 5 0 0 100 0 75 25 0 0 0 100 5600 7 None .5 5 5 25 30 25 5 5 0 0 100 0 1 1 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 15 5 5d150117001 Wasco WWTF, 5410 7th Street, Wasco, CA 93280 WWTP same agency N 0 0 0 0 Y N Debris-General Spills in 2024 were caused by stoppages due to debris and FOG. Other (specify below) No system failures occurred in 2024 0 Routine cleaning, monitoring and CCTV video inspections. 2025 5SSO10776 5F 616 31-MAR-26 Municipal(Public) 22500 1 1 1 1 1 1 0 0 0 3 0 2 58 5 70 20 5 0 0 100 0 75 25 0 0 0 100 5600 7 None .5 5 5 25 30 5 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 3 0 15 2 5d150117001 Wasco WWTF, 5410 7th Street, Wasco, CA 93280 WWTP same agency N 0 0 0 0 Y Y Other (specify below) No spills occurred in 2025. Other (specify below) No system failures occurred in 2025 0 Routine cleaning and preventative maintenance on pump stations. 2023 2SSO10203 2 616 27-MAR-24 Hospital 1100 2 2 2 2 0 0 0 0 0 0 0 0 4 60 28 7 0 0 5 100 0 0 0 0 0 0 0 63 63 Upper and Lower 0 12 78 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2sso10219 Yountville CS, 6550 Yount Street, Yountville, CA 94599 WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y Y Debris-General 0 Gravity Mainline 0 0 inspecting 1/3 of system per year and repairs as needed/required by inspection 2024 2SSO10207 2 616 05-JAN-26 Municipal(Public) 758 0 55 4 2 0 0 1 1 0 0 1.2 3.4 28 33 21 0 0 18 100 36 9 54 0 0 1 100 82 83 Upper and Lower .9 13 10 0 0 0 77 0 0 0 100 0 0 0 0 0 24 0 0 1 25 0 0 0 0 0 0 0 0 0 0 0 0 0 2 386013001 Discharge Point 001, , San Francisco, CA WWTP same agency N 0 1 0 N Y Pump Station Failure - Power Pump Station - Power N/A Treasure Island is undergoing extensive redevelopment, including full replacement of the sewer collection system. 2025 2SSO10207 2 616 01-APR-26 Municipal(Public) 729 0 45 4 2 0 2 2 1 0 0 .6 2.8 9 8 3 0 0 0 27 5 3 18 0 0 1 27 104 104 Upper and Lower 1 1 0 0 0 0 26 0 0 0 27 0 0 0 0 0 24 0 0 1 25 0 0 0 0 0 0 0 0 0 0 0 0 0 2 386013001 Discharge Point 001, , San Francisco, CA WWTP same agency N 0 1 0 Y Y Other (specify below) N/a by the Navy Other (specify below) None by the Navy R&R None required by the Navy 2023 2SSO10209 2 616 28-MAR-24 Municipal(Public) 338222 6 35 4 2 6 19 6 3 0 2 Crane operator, Underground storage tanks, Backflow/ cross connection prevention, Qualified pesticide applicator, Nassco - PACP, MACP, LACP, Welding, Forklift, CPR/ first aid, Flagger, Confined space, Fall protection, Excavation competent person, Class A or B driver's license, Co-Gen, Ultrasound, Thermal imaging, Hydraulics, Boiler, Electrical safety, HDPE fusion, Scada, Instrumrntation courses. 25 814 4 73 17 4 1 1 100 0 0 0 61 39 0 100 121957 0 None 0 1 13 26 46 12 1 0 0 1 100 0 1 4 2 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 2 240 108 269042 Raymond A. Boege Alvarado WWTP (Union SD) 5072 Benson Rd. Union City, Ca. 94587 WWTP same agency N N/A 162 28 6 Y Y Operator Error (specify below) During a scheduled ARV cleaning. A USD employee failed to follow USD’s standard operating procedure (SOP) “FMC 100-7 Service ARV Maintenance” step #7 of the Servicing Air Release Valves procedure: Verify that the 3” valve associated with the air release valve is fully closed and the vent hole in plug is open before removing the 3” plug cap. A suction hose is then installed to the ARV tree and the other end of the hose is connected to a vacuum water truck during the ARV cleaning process. Following the Spill investigation, Management has since reviewed this SOP with staff and provided additional training. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Gravity Mainline: During televising operations to inspect a 8 mainline. A flow through plug was installed to reduce and restrict flow to aid in the visual inspection of the pipe due to the high flow volume. The flow through plug was installed in the upstream direction of the manhole while the crew performed their CCTV inspection. It was determined that the crew underestimated the flow amount and restricted the flow too much. Resulting in the surcharge of the sewer main which spilled from a lateral clean out. None at this time. See Attachment. 2024 2SSO10209 2 616 13-AUG-25 Municipal(Public) 338551 4 38 4 2 3 19 6 4 0 2 1. Water & Wastewater Leadership Couse at The University of North Carolina at Chapel Hill (Kenan Flagler Business School) 2. Qualified Pesticide Applicator 3. NASSCO (PACP, MACP, LACP) 4. Crane Operator 5. Forklift Operator 6. CPR, 7. Traffic Control 8. Underground Storage Tanks 9. Backflow/ Cross Connection Prevention 10. Welding 11. Confined Space 12. Fall Protection 13. Excavation Competent Person 14. Class A or B driver's license 15. Co-Gen 16. Ultrasound & Thermal imaging 17. Hydraulics 18. Boiler 19. Electrical safety 20. HDPE fusion 21. Scada 22. Instrumentation courses 25 814 4 73 17 4 1 0 100 0 0 0 61 39 0 100 122578 0 None 0 1 13 26 46 12 1 0 0 1 100 0 1 4 2 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 225 117 2 019123001 001-EBDA, , CA WWTP same agency N None 162 28 7 Y Y Root Intrusion Gravity Mainline None Please see the attached Spill Assessment Reports for calendar year 2024. Along with completed department goals for FY24 and 6 months of FY25. 2025 2SSO10209 2 616 25-MAR-26 Municipal(Public) 340642 2 40 4 2 7 20 7 3 0 2 1. Water & Wastewater Leadership Couse at The University of North Carolina at Chapel Hill (Kenan Flagler Business School) 2. Qualified Pesticide Applicator 3. NASSCO (PACP, MACP, LACP) 4. Crane Operator 5. Forklift Operator 6. CPR, 7. Traffic Control 8. Underground Storage Tanks 9. Backflow/ Cross Connection Prevention 10. Welding 11. Confined Space 12. Fall Protection 13. Excavation Competent Person 14. Class A or B driver's license 15. Co-Gen 16. Ultrasound Level 1 17. Hydraulics 18. Boiler 19. Electrical safety 20. HDPE fusion 21. Scada 22. Instrumentation courses 23. Electrical Thermography Level 1 24. Thermal imaging 25. Respirator & N95 fit testing 26. Backhoe Operation 25 814 4 74 17 4 1 0 100 0 0 0 61 39 0 100 123941 0 None 0 1 13 26 46 12 1 0 0 1 100 0 1 4 2 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 235 78 2 019123001 001-EBDA, , CA WWTP same agency N None 162 28 7 Y Y Damage by Others Not Related to Collection System Construction/Maintenance See Attachment (Question 16a) Manhole None Please see the attached Spill Assessment Reports for calendar year 2025. Along with planned vs completed department goals for FY25, 6 months of FY26 and Department process. 2023 2SSO10210 2 616 25-MAR-24 School 67100 0 4 1 1 0 0 0 0 0 0 0 0 9 32 33 30 0 0 5 100 100 0 0 0 0 0 100 243 243 Upper and Lower 3 0 12 17 3 2 2 1 0 63 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 2SSO10096 Berkeley City Public Works CS, 2180 Milvia Street, Berkeley, CA 94704 SSS other agency 2SSO10131 Ebmud CS, P.O. Box 24055 , Oakland, CA 94623 WWTP other agency N NA 5 1 0 Y Y Debris-General NA Other (specify below) Lateral Cleanout NA NA 2024 2SSO10210 2 616 01-APR-25 School 37600 0 4 1 1 0 0 0 0 0 0 0 .4 8.6 38 31 29 0 0 2 100 100 0 0 0 0 0 0 251 251 Upper and Lower 2.4 0 12 17 3 2 2 1 0 63 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.5 1.4 2SSO10096 Berkeley City Public Works CS, 2180 Milvia Street, Berkeley, CA 94704 SSS other agency 2 019014001 EBMUD, 2020 Wake Avenue, Oakland, CA 94607 WWTP other agency N NA 5 1 0 Y Y Root Intrusion NA Other (specify below) Inside Building or Structure; and Lateral Clean Out (Public) NA NA 2025 2SSO10210 2 616 17-MAR-26 School 65000 0 4 1 0 0 0 0 0 0 0 0 .4 9 38 31 29 0 0 2 100 100 0 0 0 0 0 100 304 304 Upper and Lower 2.8 0 12 17 3 2 2 1 0 63 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2.8 22SSO10096 Berkeley City Public Works CS, 2180 Milvia Street, Berkeley, CA 94704 SSS other agency 2 019014001 EBMUD, 2020 Wake Avenue, Oakland, CA 94607 WWTP other agency N 5 1 0 Y Y Root Intrusion Also: Pipe Structural Problems (poor gravity grade in one location) Gravity Mainline Also lateral None Campus is planning to replace the gravity line with poor grade. This line receives additional maintenance/servicing to prevent blockages. 2023 2SSO10212 2 616 21-MAR-24 Municipal(Public) 123564 5 25 6 4 11 8 8 11 0 0 NA 12 473 37 45 11 5 2 0 100 20 10 40 1 29 0 100 37799 24187 Lower only 78 0 12 20 34 26 7 1 0 0 100 0 2 7 1 2 0 0 0 0 12 0 3 9 0 6 0 0 0 0 18 1 256 45 2SSO10212 Vallejo Sfcd CS, 450 Ryder Street, Vallejo, CA 94590 SSS same agency N 0 9 1 6 Y Y Root Intrusion Gravity Mainline 0 Gravity Mainline and lower lateral Capital Improvement Projects(CIP), Mainline spot repairs, Lower lateral replacements, Pipeline cleaning. All spills receive a thorough follow-up process of CCTV inspection, additional cleaning, preventative maintenance schedule, and/or repair. 2024 2SSO10212 2 616 21-MAR-25 Municipal(Public) 124886 2 30 6 4 4 13 8 12 0 0 12 473 37 45 11 5 2 0 100 20 10 40 1 29 0 100 37799 24187 Lower only 78 0 12 20 34 26 7 1 0 0 100 0 2 7 1 2 0 0 0 0 12 0 3 9 0 6 0 0 0 0 18 1 253 45 2 482012001 Vallejo Flood & Wastewater District (VFWD) WWTP, 450 Ryder Street Vallejo, CA, 94590 SSS same agency N 0 9 1 6 Y Y Root Intrusion Gravity Mainline 0 Gravity mainline and lower lateral Capitol Improvement Projects (CIP) to address I&I, structural, and capacity issues. Lower lateral replacements, pipeline cleaning, and CCTV inspections. All spills receive a thorough follow-up process of CCTV inspections, additional cleaning, preventative maintenance schedules, and/or repairs. 2025 2SSO10212 2 616 19-MAR-26 Municipal(Public) 123475 5 27 6 4 10 13 7 10 0 0 12 473 37 45 11 5 2 0 100 20 10 40 1 29 0 100 39766 19925 Lower only 78 0 12 20 34 26 7 1 0 0 100 0 2 7 1 2 0 0 0 0 12 0 3 9 0 6 0 0 0 0 18 1 260 42 2 482012001 Carquinez Strait, , CA SSS same agency N 0 9 1 6 Y Y Root Intrusion Gravity Mainline 0 Gravity mainline and lower lateral Capital Improvement Projects (CIP) to address I&I, structural, and capacity issues. Lower lateral replacements, pipeline cleaning, and CCTV inspections. All spills receive a thorough follow-up process which includes CCTV inspections, additional cleaning, adding or adjusting preventative maintenance schedules, and/or repairs or replacements. 2024 2SSO10215 2 616 05-MAR-25 Municipal(Public) 55000 6 14 4 3 9 9 9 6 0 22 6 204 55 24 15 5 1 0 100 77 4 15 4 0 0 100 15923 0 None 0 1 16 17 15 31 15 5 0 0 100 0 2 3 0 0 0 0 0 0 5 1 4 4 0 0 0 0 0 0 9 0 183 32.2 2SSO10190 SBSA CS, 1400 Radio Road, Redwood City, CA 94065 WWTP other agency Y N US Department of Energy - SLAC 2SSO11533 11 5 5 Y Y Other (specify below) Zero spills in 2024 Other (specify below) No system infrastructure failure points in 2024 None System deficiencies are addressed in routine maintenance schedule, and the District's 10yr Master Plan (Capital Improvement) 2025 2SSO10215 2 616 18-FEB-26 Municipal(Public) 55000 8 14 4 3 10 9 8 6 0 26 6 204 55 24 15 5 1 0 100 77 4 15 4 0 0 100 15925 2 None 0 1 16 17 15 31 5 0 0 0 100 0 2 3 0 0 0 0 0 0 5 1 4 4 0 0 0 0 0 0 9 0 147.4 41.8 2 417037002 Redwood City Recycled Water ( Silicon Valley Clean Water ), 1400 Radio Road, Redwood City, CA 94065 WWTP other agency Y N US Department of Energy - SLAC 2SSO11533 NA 11 5 5 Y Y Debris-Rags NA Gravity Mainline NA NA CCTV, Pipe Patch (spot repair), manhole rehabilitation 2023 2SSO10216 2 616 29-MAR-24 Municipal(Public) 76813 0 14 4 3 6 7 2 6 0 3 NA 6 253 37 39 18 4 1 1 100 22 8 18 52 0 0 100 0 0 None 0 11 0 9 34 31 15 0 0 0 100 2 4 5 5 1 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 0 304 35 2SSO10216 West County WW District CS, 2377 Garden Tract Road, Richmond, CA 94806 WWTP same agency N NA 6 0 7 Y Y Pipe Structural Problem/Failure - Controls Force Main NA WCW has comprehensive Asset Management and Capital Improvement Programs that will significantly improve the performance of our collection system. We are on pace to replace 5 miles of gravity sewer per year moving forward. We have also replaced 3 force mains and are either in planning or design of three others. We have also recently rehabilitated 3 lift stations and are either in planning or design to rehabilitate 5 others by the end of fiscal year 26. 2024 2SSO10216 2 616 27-MAR-25 Municipal(Public) 105000 0 18 4 2 2 6 7 6 1 3 NA 6 253 36 41 18 3 2 0 100 24 41 35 0 0 0 100 39000 0 None 0 12 3 9 34 31 11 0 0 0 100 2 3 4 2 2 0 0 0 0 13 3 0 1 0 0 0 0 0 0 4 0 264 24 2SSO10216 West County Wastewater, 2377 Garden Tract Rd. Richmond WWTP same agency N NA 6 0 7 Y Root Intrusion NA Gravity Mainline NA NA WCW has comprehensive Asset Management and Capital Improvement Programs that will significantly improve the performance of our collection system. The collections system (Gravity Sewer Program), $2.5 million has been planned for projects including the following projects: El Sobrante Sewer Replacement, Lower San Pablo Sewer Replacement and closing out of San Pablo Sewer Replacement. The El Sobrante Sewer Replacement Project is complete with 5,125 linear feet installed. Lower San Pablo Sewer Replacement is current in its construction phase with a total of 946 linear feet scope. San Pablo Sewer Replacement is complete with 2,985 linear feet installed. We are currently prioritizing future projects which will include gravity pipe, force main and lift station upgrades. 2025 2SSO10216 2 616 25-MAR-26 Municipal(Public) 105000 0 16 4 2 3 7 7 5 0 3 6 253 36 41 18 3 2 0 100 24 41 35 0 0 0 100 39000 0 None 0 12 3 9 34 31 11 0 0 0 100 2 3 4 2 2 0 0 0 0 13 3 0 1 0 0 0 0 0 0 4 0 248 19 2SSO10216 West County Wastewater, 2377 Garden Tract Rd. Richmond, 94801 WWTP same agency N NA 6 0 7 Y Y Root Intrusion Gravity Mainline NA NA Attached is the proposed WCW Annual Budget that depicts approximately $3.5 million dollars in capital improvements, and $500,000 for spot repairs over the next two years. We have also dedicated $100,000 to initiate a Root Control Program. 2023 2SSO10217 2 616 18-MAR-24 Municipal(Public) 110800 0 11 1 1 2 6 2 3 0 12 0 415 68 19 11 2 0 0 100 0 0 0 0 0 0 0 36918 29064 Lower only 165 1 13 15 46 23 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 305 40 2 438014001 San Jose/Santa Clara Regional Wastewater Facility, 700 Los Esteros Road, San Jose, CA 95134 WWTP other agency N 181 0 97 Y Y Other (specify below) See Attachment Other (specify below) See Attachment None See Attachment 2024 2SSO10217 2 616 28-MAR-25 Municipal(Public) 111521 1 9 1 1 1 4 3 3 0 10 .4 415.3 68 19 11 2 0 0 100 0 0 0 0 0 0 0 36784 28739 Lower only 163.3 1 13 15 46 23 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 295.5 52.4 2 438014001 San Jose/Santa Clara Regional Wastewater Facility, 700 Los Esteros Road, San Jose, CA 95134 WWTP other agency N 178 0 94 Y Y Other (specify below) See Attached Other (specify below) See Attached None See Attached 2025 2SSO10217 2 616 19-MAR-26 Municipal(Public) 111971 2 9 1 1 2 2 5 3 0 12 .5 415.5 68 19 11 2 0 0 100 0 0 0 0 0 0 0 36417 27864 Lower only 58.9 1 13 15 46 23 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 275.3 58.9 2 438014001 San Jose/Santa Clara Regional Wastewater Facility, 700 Los Esteros Rd, San Jose, CA WWTP other agency N 178 0 95 Y Y Other (specify below) See Attached Other (specify below) See Attached None See Attached 2025 2SSO10218 2 616 23-MAR-26 Municipal(Public) 5000 0 3 2 1 0 0 0 0 1 1 .3 4 96 0 0 0 0 0 96 4 0 0 0 0 0 4 186 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 1 2SSO10190 Silicon Valley Clean Water 1400 Radio Road, Redwood City, CA 94065 WWTP other agency N 0 0 0 Y Y Other (specify below) None. Zero spills in 2025. Other (specify below) None None The Town is conducting a sewer master plan currently. 2025 2SSO10219 2 616 01-APR-26 Municipal(Public) 3280 2 3 1 1 4 0 0 0 0 0 N/A .7 8 35 45 20 0 0 0 100 0 0 100 0 0 0 100 800 0 None 0 0 23 28 6 38 0 0 0 5 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 283019001 Yountville / CA Vets Home WWTP WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Other (specify below) Roots, grease (FOG), debris/blockages, inflow and infiltration (I&I), and pump station/system failures. Other (specify below) Gravity sewer mains, service laterals, and pump station infrastructure. None at this time. Routine system evaluation and capital planning activities were conducted during the reporting year. No system cleaning or CCTV inspection was performed during the reporting period. The Town completed a comprehensive 2024 system assessment and is using those findings to prioritize future maintenance, inspection, and rehabilitation activities. Ongoing efforts include sewer system evaluation, planning for rehabilitation, and continued implementation of the Sewer System Management Plan. 2023 3SSO10222 3 616 02-APR-24 Municipal(Public) 15613 2 1 0 1 0 1 1 0 0 0 NA 8 63 2 80 18 0 0 0 100 63 0 37 0 0 0 0 5567 9 Upper and Lower 2 0 41 26 33 0 0 0 0 0 100 1 1 2 1 0 0 0 0 0 5 0 2 4 1 0 0 0 0 0 7 0 9 0 3SSO10222 City of Atascadero 8005 Gabarda Rd. Atascadero Ca 93422 WWTP same agency NA NA NA NA NA NA N N NA NA N NA NA N NA NA N NA NA N NA Na NA 4 0 1 Y Y Natural Disaster (specify below) Heavy rain falls and flooding. Force Main See attachment. NA Please see attached Annual Report 2024 3SSO10222 3 616 22-APR-26 Municipal(Public) 15613 2 1 0 1 1 0 1 0 0 2 9 63 2 81 18 0 0 0 100 47 0 53 0 0 0 100 5567 9 Upper and Lower 2 5 18 21 54 0 2 0 0 0 100 1 1 2 1 0 0 0 0 0 5 0 2 4 1 0 0 0 0 0 7 0 9 .8 3 400100001 309.81 Atascadero HSA, , CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA Na NA 4 1 1 Y Y Natural Disaster (specify below) Heavy rain falls and flooding. Force Main See attachment. NA Please see attached Annual Report. We are also currently working on updating are SSMP and replacing known areas. 2025 3SSO10222 3 616 27-MAR-26 Municipal(Public) 15613 3 1 1 1 3 1 1 0 0 6 NA 9 63 2 81 18 0 0 0 100 47 0 53 0 0 0 100 5567 9 Upper and Lower 2 5 18 21 54 0 2 0 0 0 100 1 1 2 1 0 0 0 0 0 5 0 2 4 1 0 0 0 0 0 7 0 9 .8 3 400100001 City of Atascadero 8005 Gabarda Rd. Atascadero Ca 93422 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA Na NA 4 1 1 N Y Natural Disaster (specify below) Heavy rain falls and flooding Force Main NA NA The City has completed or is in the process of completing several studies and plans to identify collection system deficiencies and areas of needed repair.  This proactive identification approach includes the recent update of the collection system master plan that modeled existing and future flows, and an ongoing Inflow and Infiltration (I&I) Study to pinpoint areas with high non-wastewater flows in the system.  Additionally, the City continues to operate a preventative maintenance program and annual cleaning program to prevent spills and repair problematic locations.  Combined, these efforts provide the City with information to identify targeted localized repairs and effective Capital Improvements Projects. 2023 3SSO10223 3 616 28-MAR-24 Municipal(Public) 600 0 0 1 1 0 0 0 0 0 0 ABCSD employs a Grade IV certified wastewater treatment plant operator. 0 3 50 40 10 0 0 0 100 100 0 0 0 0 0 100 350 0 None 0 5 15 10 60 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 0 3 400101001 Avila Beach WWTP, End of San Miguel, Avila Beach, CA 93405 WWTP same agency Y N Port San Luis Harbor District CS 3SSO10308 N/A 0 1 0 Y N Other (specify below) No spills occurred during 2023. Other (specify below) No spills occurred during 2023. N/A N/A 2024 3SSO10223 3 616 01-APR-25 Municipal(Public) 1630 0 0 1 1 0 0 0 0 0 0 ABCSD employs a Grade IV certified wastewater treatment plant operator. .1 3 50 40 10 0 0 0 100 100 0 0 0 0 0 100 350 0 None 0 5 15 10 60 10 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1.5 .7 3 400101001 Avila Beach WWTP, End of San Miguel, Avila Beach, CA 93405 WWTP same agency Y N Port San Luis Harbor District CS 3SSO10308 N/A 0 1 0 Y Y Other (specify below) No spills occurred during 2024. Other (specify below) No spills occurred during 2024. No spills occurred during 2024. No spills occurred during 2024. 2025 3SSO10223 3 616 30-MAR-26 Municipal(Public) 1630 1 0 1 1 0 0 0 0 0 0 ABCSD employs a Grade V certified wastewater treatment plant operator and an OIT. .1 3 50 40 10 0 0 0 100 100 0 0 0 0 0 100 350 0 None 0 5 15 10 60 10 10 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.3 0 3 400101001 Avila Beach WWTP, End of San Miguel, Avila Beach, CA 93405 WWTP same agency Y N Port San Luis Harbor District CS 3SSO10308 N/A 0 1 0 Y Y Other (specify below) No spills occurred in 2025. Other (specify below) No spills occurred in 2025. No spills occurred in 2025. No spills occurred in 2025. 2023 5SSO10778 5F 616 16-DEC-25 Municipal(Public) 300 2 5 1 1 0 0 0 0 0 0 0 3.3 13.7 86 14 0 0 0 0 100 100 0 0 0 0 0 100 249 0 None 2.5 7 5 88 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 5 0 0 0 5C220701004 Wawona DP 001, , CA WWTP same agency N N 0 0 0 1 0 0 Y Y Pump Station Failure - Controls 0 Pump Station - Controls 0 NA NA 2024 5SSO10778 5F 616 17-DEC-25 Municipal(Public) 300 2 4 1 1 0 0 0 0 0 0 NA 3.3 13.7 86 14 0 0 0 0 100 100 0 0 0 0 0 100 249 0 None 2.5 7 5 88 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 5 0 0 0 5C220701004 Wawona DP 001, , CA WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 1 0 0 Y Y Debris from Construction 0 Manhole NA NA NA 2023 5SSO10779 5F 616 15-DEC-25 Park (w/Campground) 235 3 3 1 1 0 0 0 0 0 0 0 .4 4.8 50 0 50 0 0 0 100 90 0 10 0 0 0 100 105 105 Upper and Lower .5 10 0 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 3 0 0 0 5C550700001 Tuolumne Meadows Wastewater Treatment Facility, Toulomne Mdw , Yosemite Natl Park, CA 95321 WWTP same agency N 1 0 0 Y Y Debris-wipes/Non-disposables Pump Station - Controls NA NA 2024 5SSO10779 5F 616 15-DEC-25 Park (w/Campground) 235 3 3 1 1 0 0 0 0 0 0 0 .4 4.8 50 0 50 0 0 0 100 90 0 10 0 0 0 100 105 105 Upper and Lower .5 10 0 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 3 0 .2 .2 5C550700001 Tuolumne Meadows WWTF, Toulomne Mdw , Yosemite Natl Park, CA 95321 WWTP same agency N 1 0 0 Y Y Debris-wipes/Non-disposables Pump Station - Controls NA NA 2023 5SSO10781 5R 616 29-MAR-24 Municipal(Public) 275 2 1 0 0 1 0 0 0 0 0 None 2 3 25 75 0 0 0 0 100 100 0 0 0 0 0 100 200 100 Lower only 1 0 5 5 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 5SSO10781 Adin CS, , Adin, CA 96006-8015 SSS same agency N 3 1 0 Y Y Other (specify below) There were no major spills causes. Other (specify below) There were no system infrastructure failure points. None None 2024 5SSO10781 5R 616 14-APR-25 Municipal(Public) 275 1 2 0 0 0 1 0 0 0 0 none 2 3 25 75 0 0 0 0 100 100 0 0 0 0 0 100 200 100 Lower only 1 0 5 5 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 5A250101001 Adin CSD, Hwy 139 Highway, Adin, CA 96006 SSS same agency N None 3 1 0 Y Y Other (specify below) There were no major spills causes. Other (specify below) Ther where no system failure points. none none 2023 5SSO10782 5R 616 01-APR-24 Municipal(Public) 43 1 3 1 2 0 4 1 0 0 1 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 45 45 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 5ss010782 APN 096-300-037 WWTP same agency 5ss010782 APN 703-020-009 WWTP same agency N 0 1 0 N N Debris-General Pump Station - Controls N\A Pump replacement repair. 2023 3SSO10301 3 616 31-MAR-24 Municipal(Public) 650 1 10 1 2 0 0 0 0 0 0 California's Wastewater Operator Certification Program Grade I: 1; Grade II: 3; Grade III: 3; Grade IV: 4 3 8 60 0 40 0 0 0 100 30 0 70 0 0 0 100 650 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 6 0 0 0 0 0 7 5 0 0 3SSO10301 Oak Shores Development CS, , San Luis Obispo, CA 93408 SSS same agency 3 400113003 Oak Shores WWTP WWTP same agency N N NA NA NA 1 2 0 Y Y Pump Station Failure - Power Power outage and Operator error Other (specify below) Pump station power line and infrastructure No on-going spills at the treatment facility. A few treated effluent percolation pond spills at the disposal area. Actions taken and planned are addressed in the NOV response letter, including but not limited to operator training, operations checklist, updating the Spill Response Plan, and adding a meter to the upper and lower ponds. 2024 3SSO10301 3 616 09-APR-25 Municipal(Public) 658 4 7 4 1 2 1 0 0 0 2 NA 3 8 60 0 40 0 0 0 100 30 0 70 0 0 0 100 658 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 6 0 0 0 0 0 7 5 1 0 3SSO10301 Oak Shores Development CS, , San Luis Obispo CA 9340 SSS same agency 3 400113003 Oak Shores WWTP WWTP same agency N N NA NA NA 1 2 0 Y Y Other (specify below) NA, No spills in 2024 Other (specify below) NA NA NA 2025 3SSO10301 3 616 30-MAR-26 Municipal(Public) 658 1 7 2 2 1 1 4 2 0 0 NA 3 8 60 0 40 0 0 0 100 30 0 70 0 0 0 100 658 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 6 0 0 0 0 0 7 5 4 .1 3SSO10301 Oak Shores Development CS SSS same agency 3 400113003 Oak Shores WWTP, 2537 Ridge Rider Road, Bradley CA 93426 WWTP same agency N N NA NA NA 1 2 0 Y Y Other (specify below) NA, No Spills in 2025 Other (specify below) NA NA NA 2025 3SSO10254 3 616 25-MAR-26 Municipal(Public) 7400 1 2 1 1 0 0 0 0 0 5 NA 1 17 85 9 5 0 0 0 99 0 1 0 0 0 0 1 2268 310 Lower only 2 5 5 10 80 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 12.5 3 3 400111001 310.31 Oceano HSA, , CA WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 1 0 Y Y Debris-Rags Other (specify below) None None Sewer CIP 2023 5SSO10784 5R 616 14-MAR-24 Municipal(Public) 11307 0 2 1 1 1 1 0 0 0 0 N/A 1 47 33 38 23 6 0 0 100 100 0 0 0 0 0 100 4805 0 None 0 2 18 10 10 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 0 0 5 1 19 9 5A450100001 Anderson 001, , CA WWTP same agency N N/A 8 0 0 Y Y Debris-General N/A Gravity Mainline N/A N/A Identify any problematic areas through routine maintenance and add those sections to a preventative maintenance schedule. This greatly reduces or eliminates the chances of a spill in those known areas. 2024 5SSO10784 5R 616 21-JAN-25 Municipal(Public) 7774 0 4 1 1 1 1 0 0 0 0 N/A 1 47 33 38 23 6 0 0 100 100 0 0 0 0 0 100 4805 0 None 0 2 18 10 10 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 0 0 5 1 20.7 6.4 5A450100001 Anderson 001, , CA WWTP same agency N N/A 8 0 0 Y Y Other (specify below) No spills reported in 2024 Other (specify below) None in 2024 None in 2024 Continuation with preventative maintenance program along with capital improvement projects. 2025 5SSO10784 5R 616 12-JAN-26 Municipal(Public) 7774 0 4 1 1 0 2 0 0 0 0 1 47 33 38 23 6 0 0 100 100 0 0 0 0 0 100 4805 0 None 0 2 18 10 10 60 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 0 0 5 1 27.5 9.3 5A450100001 Anderson 001, , CA WWTP same agency N 8 0 0 Y Y Other (specify below) No spills in 2025 Other (specify below) None in 2025 None in 2025 Hired Pace Engineering in Redding, California, to develop an updated Master Sewer Plan aimed at identifying deficiencies within the entire system. Compile a list of high-priority improvement projects and undertake efforts to address the identified deficiencies. 2025 3SSO10226 3 616 02-JAN-26 Municipal(Public) 200 1 7 2 2 0 0 0 0 0 0 NA .3 .1 100 0 0 0 0 0 0 100 0 0 0 0 0 0 60 60 Upper and Lower .6 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 .1 0 0 3 440107001 304.12 San Lorenzo HSA, , CA SSS same agency N NA 0 1 0 N Y Other (specify below) NO no spills Other (specify below) NA NA NA 2025 3SSO11609 3 616 16-MAR-26 Municipal(Public) 15000 2 3 1 2 0 0 0 0 0 0 1 57 20 60 20 0 0 0 100 0 0 100 0 0 0 100 6000 30 Upper and Lower .2 10 25 20 15 20 10 0 0 0 100 0 0 80 20 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 100 20 3SSO10296 Monterey One Water WWTP other agency N 0 0 0 N Y Root Intrusion Gravity Mainline If a spill occurs, we typically CCTV the line Clean and foam 2023 5SSO10785 5R 616 22-DEC-25 Other 750 0 4 1 1 0 1 0 0 0 0 17 0 100 0 0 0 0 0 100 100 0 0 0 0 0 100 204 204 None 0 75 25 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A320119001 Bailey Creek WWTF, Walker Road, Lake Almanor, CA 96137 SSS same agency N 0 0 0 N Y Construction Diversion Failure Force Main None No 2024 5SSO10785 5R 616 22-DEC-25 Municipal(Public) 750 0 4 1 1 0 1 0 0 0 0 17 0 100 0 0 0 0 0 100 100 0 0 0 0 0 100 204 204 None 0 75 25 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A320119001 Bailey Creek WWTF, Walker Road, Lake Almanor, CA 96137 SSS same agency N 0 0 0 N Y Construction Diversion Failure Force Main none no 2023 5SSO10786 5R 616 22-DEC-25 Municipal(Public) 100 0 1 0 1 0 1 0 0 0 0 2.7 2.5 99 1 0 0 0 0 100 100 0 0 0 0 0 100 5 5 None 0 22 27 51 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5A320104003 Beckwourth WW Ponds, Hwy 70 Highway, Beckwourth, CA 96129 SSS same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) Force Main none no 2024 5SSO10786 5R 616 22-DEC-25 Municipal(Public) 100 0 1 0 1 0 1 0 0 0 0 2.7 2.5 99 1 0 0 0 0 100 100 0 0 0 0 0 100 5 5 None 0 22 27 51 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5A320104003 Beckwourth WW Ponds, Hwy 70 Highway, Beckwourth, CA 96129 SSS same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) Force Main none no 2023 3SSO10305 3 616 28-MAR-24 Municipal(Public) 31000 3 2 1 1 1 2 2 0 0 0 One member certified as Mechanical Technologist grade I. 5 137 20 59 15 5 0 1 100 66 10 22 2 0 0 100 7495 0 None 0 1 30 38 18 9 1 1 0 2 100 0 0 0 3 0 0 0 0 0 3 0 7 3 0 0 0 0 0 0 10 0 46 37 3SSO10305 Paso Robles CS, 3200 Sulphur Springs Road, Paso Robles, CA 93446 WWTP same agency N 32 3 1 Y Y Root Intrusion Gravity Mainline None Executing preventative maintenance and Capital Improvement Plan as identified in 2019 Collections System Renewal Strategy and Master Plan 2024 3SSO10305 3 616 07-APR-25 Municipal(Public) 31000 2 3 1 1 3 1 2 0 0 0 One member certified as Mechanical Technologist grade 1 5 137 20 59 15 5 0 1 100 66 10 22 2 0 0 100 7495 0 None 0 1 30 38 18 9 1 1 0 2 100 0 0 0 3 0 0 0 0 0 3 0 0 3 0 0 0 0 0 0 10 0 50 37.5 3 400105001 Paso Robles CS, 3200 Sulphur Springs Road, Paso Robles WWTP same agency N 32 3 1 Y Y Root Intrusion Gravity Mainline None Executing preventative maintenance and Capital Improvement Plan as identified in 2019 Collections System Renewal Strategy and Master Plan 2025 3SSO10305 3 616 11-MAR-26 Municipal(Public) 31000 3 2 1 1 2 2 1 0 0 0 5 137 20 59 15 5 0 1 100 66 10 22 2 0 0 100 7495 0 None 0 1 30 38 18 9 1 1 0 2 100 0 0 0 3 0 0 0 0 0 3 0 7 3 0 0 0 0 0 0 10 0 74 52.9 3 400105001 Paso Robles CS, 3200 Sulphur Springs Road, Paso Robles WWTP same agency N 32 4 1 Y Y Siphon Failure Siphon None Executing preventative maintenance and Capital Improvement Plan as identified in 2019 Collections System Renewal Strategy and Master Plan. A wastewater level sensor and monitoring device was installed in our siphon manhole with a callout alarm feature to alert us of a blockage to prevent future spills there. 2025 3SSO10228 3 616 01-APR-26 Park (w/Campground) 0 1 1 4 1 0 0 0 0 0 6 All operations staff hold Water and Wastewater Treatment Operator certificates, ranging form OIT- Grade III and T2/D2 for water. .2 4.7 65 35 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 15 35 35 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 .2 0 0 3 440800001 Big Basin WWTP 21600 Big Basin Way Boulder Creek CA, 95006 WWTP same agency N 3 1 0 N N Root Intrusion Gravity Mainline Since the system is offline there are no spill investigations ongoing. The system has been inactive since the 2020 CZU Fire that occurred in Aug 2020. The systems was assessed and evaluated by State Parks on-call engineering firm Mott McDonald. There will be a major collection system upgrade/rehab before the systems is returned to service. 2025 3SSO20079 3 616 24-APR-26 Park (w/Campground) 2255 1 6 5 1 0 0 0 0 0 5 The 5 staff listed in 4.f. have at minimum have completed OWP's Operation of Wastewater Treatment Plant Vol 1. And hold CA SWRCB Wastewater Treatment license or are enrolled in the OIT program. .3 4 90 10 0 0 0 0 0 100 0 0 0 0 0 0 96 96 Upper and Lower .5 0 0 5 25 70 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 3 0 0 0 0 0 6 .8 3 1 3 270802001 Pfeiffer Big Sur WWTP, 47255 Highway 1, Big Sur, 93920 WWTP same agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 3 2 0 N Y Root Intrusion Wet Wipes and General Debris Force Main Air Relief Valves and Lift Stations None, cause for previously mentioned air valve blow off was determined to be root intrusion resulting in a clog. Clean and maintain Lines on a schedule, address root intrusion and make repairs accordingly. Clean and install new air relief valve. 2025 3SSO20079 3 616 03-DEC-25 Park (w/Campground) 2255 1 6 5 1 0 0 0 0 0 5 The 5 staff listed in 4.f. have at minimum have completed OWP's Operation of Wastewater Treatment Plant Vol 1. And hold CA SWRCB Wastewater Treatment license or are enrolled in the OIT program. .3 4 90 10 0 0 0 0 0 100 0 0 0 0 0 0 96 96 Upper and Lower .5 0 17 0 83 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4 0 0 0 0 0 0 .8 3 1 3 270802001 Pfeiffier Big Sur Wastewater Plant, 47255 Highway 1, Big Sur WWTP same agency N NA 3 2 0 N Y Debris-General roots, wet wipes Air Relief Valve (ARV)/ Blow-Off Valve (BOV) None None, cause for previously mentioned air valve blow off was determined to be root intrusion resulting in a clog. Clean and maintain Lines on a schedule, address root intrusion and make repairs accordingly. Clean and install new air relief valve. 2023 3SSO10307 3 616 23-SEP-25 Municipal(Public) 7948 0 4 1 1 2 0 0 0 0 0 none 13.5 40 45 50 5 0 0 0 100 15 35 50 0 0 0 100 4685 0 None 0 0 3 33 32 32 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 20 1 3 400106001 001, , CA WWTP same agency N N 0 3 0 N Y Other (specify below) The system did not experience any major spills. Pump Station - Power none Replaced faulty automatic transfer switch that was causing power issues at Vista Del Mar lift station. 2024 3SSO10307 3 616 23-SEP-25 Municipal(Public) 8072 1 3 1 1 2 0 1 0 0 0 N/A 13.5 40 45 50 5 0 0 0 100 15 35 50 0 0 0 100 4686 0 None 0 0 3 33 32 32 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 20 1 3 400106001 001, , CA WWTP same agency N N/A 0 3 0 N Y Other (specify below) No major spills occurred in system Gravity Mainline N/A None Increased hot spot cleaning in certain locations. 2025 3SSO10307 3 616 01-APR-26 Municipal(Public) 8072 1 4 1 1 0 2 1 0 0 0 13.5 40 45 50 5 0 0 0 100 15 35 50 0 0 0 100 4775 0 None 0 0 3 33 32 32 0 0 0 0 0 2 1 1 0 0 0 0 0 0 0 0 3 2 3 0 0 0 0 0 0 1 20 2 400106001 001, , CA WWTP same agency N 0 3 0 N Y Other (specify below) No major spills Other (specify below) None None City of Pismo is currently updating their Sewer System Master Plan & Management Plan at the same time. also, in design to replace Sunset Palisades Lift Station force main. Remove from easement and place into the city's right of way. 2023 3SSO10231 3 616 25-MAR-24 Municipal(Public) 5140 1 1 1 0 0 1 1 0 0 2 1 OIT 0 19 13 77 10 0 0 0 100 100 0 0 0 0 0 100 1469 0 None 0 0 30 22 48 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 3 2 12 12 3 420100001 Buellton WWTP 79 Industrial Way, Buellton 93427 WWTP same agency N 1 0 0 Y Y Fats, Oil and Grease (FOG) n/a. City has not had any major spills. Gravity Mainline City has not had any mainline failures. However, historical minor spills occurred due to obstruction in mainline. None. City performs routine annual sewer main cleaning and cctv. 2025 5SSO10790 5R 616 29-MAY-26 Other 400000 1 2 2 1 1 1 0 0 0 0 1 employee in OIT. .5 2 0 90 0 0 0 0 90 0 10 0 0 0 0 10 6 6 Upper and Lower 1 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 0 5A450702001 Brandy Creek Recreational Area, Brandy Creek , Whiskeytown, CA 96095 WWTP same agency N N none none N none none N none none N none none N none none none 2 2 0 N Y Other (specify below) There have been no major spills. Other (specify below) There have been no infrastructure failure points. there are no ongoing spill investigations. There have been no system deficiencies. 2023 5SSO10791 5R 616 18-MAR-26 Municipal(Public) 3000 1 3 1 1 0 1 0 1 0 0 N/A .5 21 65 20 15 0 0 0 100 6 94 0 0 0 0 100 1371 1371 Lower only 10 1 0 0 99 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 .5 2 .5 5A450107001 BurneySTP, 20222 Hudson Street, Burney, CA 96013 WWTP same agency N 4 0 1 N Y Root Intrusion Lower Lateral None. In 2022-23 replaced or spot repaired 14 identified deficiencies in the sewer system. Also, part of the same project. there were upgrades to both lift stations that included new vfd's, telemetry and SCADA, pumps and piping, and comminutor. 2024 5SSO10791 5R 616 06-FEB-26 Municipal(Public) 3000 1 3 1 1 0 1 0 1 0 0 N/A .5 21 65 20 15 0 0 0 100 6 94 0 0 0 0 100 1371 1371 Lower only 10 1 0 0 99 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 .5 2.3 .5 5A450107001 Burney STP, 20222 Hudson Street, Burney, CA 96013 WWTP same agency N 7 0 2 N Y Root Intrusion Lower Lateral None. In 2022-23 replaced or spot repaired 14 identified deficiencies in the sewer system. Also, part of the same project. there were upgrades to both lift stations that included new vfd's, telemetry and SCADA, pumps and piping, and comminutor. 2023 3SSO10235 3 616 08-DEC-25 Other 25500 0 8 4 3 0 0 0 0 0 0 NA 14.5 15.1 49 17 34 0 0 0 100 100 0 0 0 0 0 100 300 300 Upper and Lower 14.5 0 30 17 30 21 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 6 0 6 5 3 400107001 001, , CA WWTP other agency N NA 2 1 2 Y Y Other (specify below) NO MAJOR SPILLS IN THE REPORTING PERIOD Other (specify below) NO SYSTEM INFRASTRUCTURE FAILURES IN THE RESPORTNG PERIOD NO MAJOR SPILLS IN THE REPORTING PERIOD NA 2024 3SSO10235 3 616 08-DEC-25 School 25500 0 8 4 4 0 0 0 0 0 0 NA 1.4 15.1 49 17 34 0 0 0 100 100 0 0 0 0 0 0 300 300 Upper and Lower 14.5 0 30 17 30 21 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 6 0 6.5 4 3 400107001 001, , CA WWTP other agency N NA NA NA 2 1 2 Y Y Other (specify below) NO MAJOR SPILLS IN THE REPORTING PERIOD Other (specify below) NO SYSTEM INFRASTRUCTURE FAILURES IN THE REPORTING PERIOD NO MAJOR SPILLS IN THE REPORTING PERIOD NA 2025 3SSO10235 3 616 01-APR-26 School 25500 1 6 1 2 0 0 0 0 0 0 0 1.4 15.5 49 17 34 0 0 0 100 100 0 0 0 0 0 100 300 14 Upper and Lower 14 1 30 17 30 21 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 6 0 7 2 City of SLO WWTP other agency N N/a 2 1 2 Y Y Other (specify below) None Pump Station - Mechanical 2 failed chopper pumps for YTT lift station were replaced brand new, like & kind. None None other than whats listed in line item #17 2023 3SSO20018 3 616 29-MAR-24 Municipal(Public) 4365 0 12 0 2 3 1 1 0 0 0 2 20 45 54 1 0 0 0 100 66 0 34 0 0 0 100 1323 0 None 0 2 1 74 23 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 3 0 20 0 3 351000001 Ridgemark Estates WWTP WWTP same agency N 1 1 0 Y Pipe Structural Problem/Failure - Controls Pipe material failure prior to reaching end of life calculated value. Force Main None Pumpstation with failed force main is being replaced in 2024. This is on schedule and will retire the force main that failed this year. 2024 3SSO10236 3 616 22-DEC-25 Prison 15000 1 3 2 2 0 0 0 0 0 0 0 10 5 20 25 50 0 0 100 0 0 0 0 0 0 0 6 6 Upper and Lower 50 0 0 5 20 25 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 5 3SSO10236 WWTP same agency N N/A N/A 2 0 0 N Y Debris-General N/A Manhole N/A Annual inspection and cleaning. 2023 3SSO10312 3 616 19-MAR-24 Municipal(Public) 417 10 30 6 2 22 1 0 2 0 1 1 4 14 28 58 0 0 0 100 45 55 0 0 0 0 100 0 0 None 0 0 5 95 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3SSO10312 Rolling Woods Subdivision CS, 701 Ocean Street, Santa Cruz, CA 95060 WWTP same agency N 1 1 1 Y Y Other (specify below) None Other (specify below) None None None 2025 3SSO10312 3 616 20-MAR-26 Municipal(Public) 417 10 32 6 2 9 1 0 2 0 1 NA 1 4 14 28 58 0 0 0 100 45 55 0 0 0 0 100 0 0 None 0 0 5 95 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3 400322963 001, null WWTP other agency N NA 1 1 1 Y Y Other (specify below) There were no spills in CY 2025 Other (specify below) There were no spills in CY 2025 NA Each year we evaluate the needs for the collection system 2024 3SSO10239 3 616 20-MAR-25 Municipal(Public) 6000 3 3 1 1 2 1 0 0 0 4 3 66 0 90 6 4 0 0 100 80 0 20 0 0 0 100 3881 0 None 0 0 0 2 98 0 0 0 0 0 100 0 0 0 7 0 0 0 0 0 7 0 0 0 3 0 0 0 0 0 3 5 13.2 .3 3SSO10239 Cambria Csd CS, P.O. Box 65 , Cambria, CA 93428 WWTP same agency N NA 1 0 1 Y N Natural Disaster (specify below) 3/2023 Spill caused by Santa Rosa Creek overflowing its banks and entering into the drywell/control cabinet / back up generator of LSB1. Loss of power due to weather caused the lift station to overflow into Santa Rosa Creak Pump Station - Power N/A None Rebuilt Lift Station B1. Reviewing options to move to submersible pumps and moving controls above flood plane. Also, reviewing financial feasability of removing lift station and gravity draining main. 2025 3SSO10239 3 616 16-MAR-26 Municipal(Public) 6038 1 3 1 1 3 1 0 0 0 3 3 66 0 90 6 4 0 0 100 80 0 20 0 0 0 100 3881 0 None 0 0 0 2 98 0 0 0 0 0 100 0 0 0 7 0 0 0 0 0 7 0 0 0 3 0 0 0 0 0 3 5 14.5 4.6 3SSO10239 Cambria Csd CS, P.O. Box 65, Cambria, CA 93428 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 1 0 1 Y Y Root Intrusion Manhole 0 Minor spill caused by root intrusion increased inspection and jetting to twice yearly, Have sewer line placed on replacement schedule 2023 3SSO10314 3 616 10-DEC-25 Municipal(Public) 165542 2 9 2 1 0 1 0 0 0 5 NA 2 275 15 70 3 7 5 0 100 0 0 0 0 0 0 0 33355 0 None 403 0 4 26 41 6 13 10 0 0 100 0 3 2 0 0 0 0 0 0 5 0 1 4 0 0 0 0 0 0 5 2 60 5 3 270118002 001, , CA WWTP other agency Y N Boronda (Unincorporated) 3SSO18092 Y Bolsa Knowles 3SSO10314 NA 7 1 3 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA NA Additional SCADA Manhole Monitors added to current monitoring program. Added Smartcover manhole monitors to system for all upstream systems of all lift stations to alarm and monitor flow. Adjusted maintenance schedules, increased inspections at failure locations. CCTV inspections of system where failures occurred. 2024 3SSO10314 3 616 10-DEC-25 Municipal(Public) 159506 2 14 2 1 0 2 0 0 0 5 N/A 1.9 275 15 70 3 7 5 0 100 60 10 30 0 0 0 100 33355 0 None 0 1 4 26 41 6 12 10 0 0 100 0 0 3 1 0 0 0 0 0 4 0 0 1 5 0 0 0 0 0 6 2 94 29.9 3 270118002 001, , CA WWTP other agency Y N Boronda (Unincorporated) 3SS018092 Y Bolsa Knowles 3SSO10314 N/A 7 1 3 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A SCADA Manhole monitoring at 65 location known location for issues. Additional monitors at SSO locations during year. Smart cover monitoring of all upstream system of lift stations. Adjusted maintenance schedules, increased inspections at failure locations. CCTV inspections of system where failures occurred. 2025 3SSO10314 3 616 17-MAR-26 Municipal(Public) 1612039 2 13 2 1 0 2 0 0 0 4 N/A 1.9 275 15 70 3 7 5 0 100 60 10 30 0 0 0 100 33355 0 None 0 1 4 26 41 6 12 10 0 0 100 0 0 3 1 0 0 0 0 0 4 0 0 1 5 0 0 0 0 0 6 2 202.5 29.8 3 270118002 001, , CA WWTP other agency Y N Boronda (Unincorporated) 3SSO18092 Y Bolsa Knolls 3SSO10314 N/A 7 1 3 Y Y Other (specify below) No Spills in Calendar Year 2025 Other (specify below) N/A N/A N/A 2023 5SSO20009 5R 616 13-JUL-26 Municipal(Public) 2150 1 1 1 0 0 1 0 0 0 1 N/A .2 13.3 92 8 0 0 0 0 100 100 0 0 0 0 0 100 1000 1000 Lower only 1000 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 3 .2 10 10 5SSO10797, 5SSO Chester WWTP SSS same agency N Y Chester PUD collection System 5SSO10797 Y Chester PUD collection System 5SSO10797 Y Chester PUD collection System 5SSO10797 Y Chester PUD collection System 5SSO10797 Y Chester PUD collection System 5SSO10797 Only one collection system with laterals connecting to homes 1 4 1 N Y Debris-General n/a Gravity Mainline n/a n/a grants 2023 5SSO20009 5R 616 13-JUL-26 Municipal(Public) 2150 1 1 1 0 0 1 0 0 0 2 N/A .2 13.3 92 8 0 0 0 0 100 100 0 0 0 0 0 100 1000 1000 Lower only 1000 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 1 3 3 3 0 0 0 0 0 0 3 .2 10 10 5SSO10797, 5SSO Chester WWTP WWTP same agency N Y Chester PUD Collection System 5SSO10797 Y Chester PUD Collection System 5SSO10797 Y Chester PUD Collection System 5SSO10797 Y Chester PUD Collection System 5SSO10797 Y Chester PUD Collection System 5SSO10797 We only have one collection system 2 2 1 N Y Debris-General N/A Gravity Mainline N/A N/A Grants 2024 5SSO20009 5R 616 13-JUL-26 Municipal(Public) 2150 2 1 1 0 1 1 0 0 0 2 .2 13.3 92 8 0 0 0 0 100 100 0 0 0 0 0 100 1000 1000 Lower only 1000 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 1 3 3 3 0 0 0 0 0 0 3 .2 10 10 5SSO10797, 5SSO Chester WWTP SSS same agency N Y Chester collection system 5SSO10797 Y Chester collection system 5SSO10797 Y Chester collection system 5SSO10797 Y Chester collection system 5SSO10797 Y Chester collection system 5SSO10797 There is only one collection system with sewer lateral connecting to homes. 4 4 1 N Y Debris-General n/a Gravity Mainline n/a n/a n/a 2025 5SSO20009 5R 616 14-JUL-26 Municipal(Public) 2150 1 1 1 0 1 1 0 0 0 2 n/a .2 13.3 92 8 0 0 0 0 100 100 0 0 0 0 0 100 1000 1000 Lower only 1000 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 1 3 3 3 0 0 0 0 0 0 3 .2 3 0 5SSO20009 Chester WWTP SSS same agency 5SSO20009 Chester WWTP SSS same agency 5SSO20009 Chester WWTP SSS same agency 5SSO20009 Chester WWTP SSS same agency N Y Chester collection System 5SSO10797 Y Chester collection System 5SSO10797 Y Chester collection System 5SSO10797 Y Chester collection System 5SSO10797 Y Chester collection System 5SSO10797 Chester pud only has one wwtp5SSO20009 and one collection system 5SSO10797 4 4 1 N Y Debris-General n/a Gravity Mainline n/a none grants 2023 5SSO10798 5S 616 03-APR-24 Municipal(Public) 983 0 2 1 1 0 1 0 0 0 44895 1 D2,T2 1 D1 0 10 50 10 40 0 0 0 100 0 0 0 0 0 0 0 334 0 None 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 5A460100001 City of Loyalton and Grandi Ranch WWTF, 403 Poole Lane, Loyalton, CA 96118 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 0 1 N Y Other (specify below) N/A No spills Other (specify below) N/A N/A N/A 2024 5SSO10798 5S 616 01-APR-25 Municipal(Public) 983 0 2 1 1 0 0 0 1 0 44895 1D2, T2, 1D1 0 10 5 10 40 0 0 0 100 0 0 0 0 0 0 0 344 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 5A460100001 City of Loyalton and Grandi Ranch WWTF, 403 Poole Lane, Loyalton, CA 96118 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 0 1 N Y Other (specify below) N/A No spills Other (specify below) N/A N/A N/A 2025 5SSO10798 5S 616 16-MAR-26 Municipal(Public) 983 0 1 1 1 1 0 0 0 0 420094 Grade 2 Water Distribution 0 10 5 10 40 0 0 0 100 0 0 0 0 0 0 0 344 0 None 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 5A460100001 City of Loyalton and Grandi Ranch WWTF, 403 Poole Lane, Loyalton, CA 96118 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 0 1 N Y Other (specify below) N/A NO SPILLS Other (specify below) N/A N/A N/A 2023 5SSO10799 5R 616 26-MAR-24 Municipal(Public) 19893 1 2 1 1 3 2 0 0 0 0 N/A 2 66 60 10 10 10 10 0 100 100 0 0 0 0 0 100 0 0 None 0 0 10 83 0 0 0 0 0 0 93 0 0 3 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 48 13 5SSO10838 Oroville CS, , Oroville, CA 95965-4952 WWTP other agency N N N/A 0 N N/A 0 N N/A 0 N N/A 0 N N/A 0 N/A 1 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A 0 Over the last several years, the city has completed some key improvements and pivoted to a robust CCTV and cleaning schedule to improve the system's reliability. These improvements include upsizing 3,200 feet of 12 gravity feed main to a 15 HDPE main. In 2015, the City completed 3,000 feet of pipe lining for 6 and 8 clay mains. Additionally, in 2015 1,000 feet of root foaming was carried out. This year, we plan to foam and line an additional 3,500 feet of 6 and 8 clay pipe. 2024 5SSO10799 5R 616 23-DEC-25 Municipal(Public) 19707 2 2 1 1 4 1 0 0 0 0 N/A 2 66 60 10 10 10 10 0 100 100 0 0 0 0 0 100 0 0 None 0 0 10 10 10 70 0 0 0 0 100 0 0 3 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 47 19 5SSO10858 Oroville CS, Oroville Ca,95965-4952 WWTP other agency N N N/A 0 N N/A 0 N N/A 0 N N/A 0 N N/A 0 1 0 0 Y Y Root Intrusion FOG, Rags, and Debris Gravity Mainline N/A N/A The city continues to be aggressive in cleaning and CCTV schedule to improve the system's reliability. The city has initiated a root foaming program through CCTV inspection and facilitated 3368 feet of root problem lines through DUKES contracting. The city has also recently launched a CMMS system through WebSoft Developers Inc. to help with system management, record keeping, and maintenance. The city is currently working with city engineers to upgrade our Orangewood lift stations and are also working on a bypass system at Riverview lift station. 2025 5SSO10799 5R 616 11-FEB-26 Municipal(Public) 19712 3 2 1 1 5 2 0 0 0 0 N/A 2 66 60 10 10 10 10 0 100 100 0 0 0 0 0 100 0 0 None 0 0 10 83 7 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 34.7 12 5SSO10838 Oroville CS, Oroville, CA 95965-4952 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 0 0 Y Y Root Intrusion Gravity Mainline N/A N/A The City continues to be aggressive in cleaning and CCTV schedule to improve the system's reliability. The City is one year into a CMMS system through WebSoft Developers Inc. to help with system management, record keeping, and maintenance. The City has issued a basic contract with Carollo Inc. to address repairs and upgrades to the Cities lift stations, with Riverview Terrace and Orangewood being the priorities. The City performed an emergency repair of a 3 foot section of collapsed sewer main on Bird Street. This section was found during CCTV inspection and repaired immediately. 2023 3SSO10320 3 616 19-MAR-24 Municipal(Public) 47545 3 6 1 1 5 2 5 1 0 0 N/A 2 146 45 37 14 2 2 0 100 66 0 34 0 0 0 100 23540 0 None 0 4 19 19 25 23 7 2 0 1 100 0 2 0 0 0 0 0 0 0 2 2 2 2 1 0 0 0 0 0 7 14 117 15 3400107001 The City of San Luis Obispo’s Water Resource Recovery Facility WWTP same agency Y Y Cal Poly University 3SSO10235 N/A 30 2 22 Y Y Root Intrusion N/A Gravity Mainline N/A There are currently no spill investigations in progress at this time. The city handles internal repairs and engages contractors for emergency situations as required. Moreover, plans are underway to replace approximately one mile of gravity mainline starting in fiscal year 2024/2025. 2024 3SSO10320 3 616 02-DEC-25 Municipal(Public) 49244 1 8 1 1 5 3 5 1 0 0 Four employees hold a Grade 1 Mechanical Technologist, and all employees carry a Collection System Maintenance certificate. 3.4 145 45 37 15 2 1 0 100 66 0 34 0 0 0 100 13174 0 None 0 4 19 19 25 23 7 2 0 1 100 0 2 0 0 0 0 0 0 0 2 2 2 2 1 0 0 0 0 0 7 0 96.6 15.7 3 400107001 WRRF 35 Prado Rd San Luis Obispo CA, 93401 WWTP same agency Y Y Cal Poly University 3SSO10235 N/A 30 2 22 Y Y Debris-General N/A Gravity Mainline N/A There are currently no active spill investigations occurring at his time. The city has adopted a proactive approach to assessing system conditions, conducting flow studies, and addressing high-priority Capital Improvement Projects (CIPs) to ensure the continued operation of the city's conveyance system. If any deficiencies are identified, the city will either carry out in-house point repairs or schedule CIP repairs as needed. 2025 3SSO10320 3 616 11-MAR-26 Municipal(Public) 49729 2 9 1 1 7 2 3 2 0 2 N/A 3.4 146.3 45 38 14 2 1 0 100 66 0 34 0 0 0 100 13614 0 None 0 6 19 19 24 23 6 2 0 1 100 0 2 0 1 0 0 0 0 0 2 2 2 2 1 0 0 0 0 0 7 0 107.1 15.8 3 400107001 35 Praod Rd San Luis Obispo CA, 93401 WWTP same agency N Y Cal Poly University 3SSO10235 N/A 30 2 22 Y Root Intrusion N/A Gravity Mainline N/A We have no ongoing spill investigations at this time. We are proactively addressing system deficiencies through our Capital Improvement Program (CIP) pipe replacement projects and a private sewer lateral program that helps offset the cost of lateral replacements. Additionally, all new building permits and developments within the city are required to replace their sewer laterals. These projects must also account for any additional flow by upsizing existing mains or replacing other laterals, ensuring there is no net increase in system demand. 2023 3SSO10321 3 616 28-MAR-24 Municipal(Public) 2600 0 1 0 1 2 0 0 0 0 0 na 0 9 1 98 1 0 0 0 100 100 0 0 0 0 0 100 831 0 None 0 0 10 10 10 70 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 0 10 5 3 400109001 Machado WWTF, 1765 Bonita Place San Miguel CA 93451 WWTP same agency N 0 0 0 N Y Root Intrusion Upper Lateral none Currently CCTV approximately 50% of system to identify deficiencies and make repairs/ replacements in addition to developing a project to line the existing clay and cast-iron mains. Require new construction to inspect and replace laterals as necessary to repair deteriorating laterals. 2024 3SSO10321 3 616 26-MAR-25 Municipal(Public) 2600 2 0 0 1 1 0 0 0 0 0 N/A 0 9 1 98 1 0 0 0 100 100 0 0 0 0 0 100 831 0 None 0 0 10 10 10 70 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 0 5 5 3 400109001 Machado WWTF, 1765 Bonita Place San Miguel CA 93451 WWTP same agency N 0 0 0 Y N Other (specify below) No spills occurred during 2024. Other (specify below) No spills occurred during 2024. No spills occurred during 2024. No spills occurred during 2024. 2025 3SSO10321 3 616 27-MAR-26 Municipal(Public) 2600 2 0 0 1 1 0 0 0 0 0 N/A 0 9 1 98 1 0 0 0 100 100 0 0 0 0 0 100 831 0 None 0 0 10 10 10 70 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 0 5 5 3 400109001 San Miguel CSD WWTF, 1765 Bonita Place San Miguel CA 93451 WWTP same agency N 0 0 0 Y N Other (specify below) No spills occurred during 2025. Other (specify below) No spills occurred during 2025. No spills occurred during 2025. No spills occurred during 2025. 2023 4SSO10434 4 616 02-APR-24 Municipal(Public) 19602 5 28 3 1 6 1 1 0 0 0 n/a 1 37 0 100 0 0 0 0 100 100 0 0 0 0 0 100 4339 0 None 0 0 1 1 1 97 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 18 0 4SSO11395 LA County SD 15 SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 2 Y Y Fats, Oil and Grease (FOG) Gravity Mainline manhole None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10434 4 616 23-DEC-25 Municipal(Public) 19602 2 25 2 1 5 0 1 0 0 0 N/A 0 36.7 0 95 5 0 0 0 100 100 0 0 0 0 0 100 4339 0 None 0 0 1 1 1 97 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 7.3 0 4B190107016 Whittier Narrows WRP LA County Sanitation District WWTP other agency N 0 0 2 Y Y Other (specify below) None Other (specify below) None None None 2025 4SSO10434 4 616 30-MAR-26 Municipal(Public) 19121 26 4 3 1 2 2 0 0 0 0 0 0 36.7 0 95 5 0 0 0 100 100 0 0 0 0 0 100 4339 0 None 0 0 1 1 1 97 0 0 0 0 100 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 6.4 .1 4B190107016 Whittier Narrows Water Reclamation Plant, 301 Rosemead Blvd., South El Monte, CA 91733 SSS same agency N 0 0 2 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None The mainline will be televised to determine whether further action is needed. 2024 3SSO10323 3 616 01-APR-25 Municipal(Public) 218 9 29 6 2 15 0 0 2 0 1 1 1 14 86 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 2 0 98 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 3sso10323 CSA 5 WWTP same agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None None 2025 3SSO10323 3 616 20-MAR-26 Municipal(Public) 218 10 32 6 2 9 1 0 2 0 1 NA 1 1 14 86 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 2 0 98 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 .5 1.2 3 440106001 305.10 Watsonville HA, , CA WWTP same agency N NA 0 0 0 Y Y Other (specify below) There were no spills in CY 2025 Other (specify below) There were no spills in CY 2025 NA Each year we evaluate the needs for the the collection system 2024 4SSO20053 4 616 10-MAY-24 Municipal(Public) 99578 4 1 1 1 1 1 1 1 0 0 None. 0 120 1309 560509 60118 2284 0 0 624220 0 0 0 0 0 0 0 19500 0 None 19500 0 0 0 0 50 50 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 226000 129600 4SSO10435 County Sanitation Districts of Los Angeles County (LACSD) SSS same agency N N N/A 0 0 100 Y Y Other (specify below) The system has not had any spills in my three-year tenure with this agency (City of South Gate). Upper Lateral N/A N/A Mainline sewer relining projects and yearly CCTV Inspections to identity any problem areas. 2023 3SSO10324 3 616 21-MAR-24 Municipal(Public) 72200 10 30 6 2 22 1 0 2 0 1 14 186 48 35 15 2 0 0 100 15 7 36 42 0 0 100 0 0 None 0 6 20 15 56 2 1 0 0 0 100 0 2 0 16 0 0 0 0 0 18 0 4 2 11 0 0 0 0 0 17 3 44 18 3sso10252 Santa Cruz City CS, 809 Center Street, 201 Santa Cruz, CA 95060 WWTP other agency N 8 4 3 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Manhole NA The Santa Cruz County Sanitation District staff is working on acquiring a $29 million revenue bond in June 2024 to fund eleven sewer projects to reduce I&I and address capacity issues in the sewer collection system. The District is also developing site specific emergency bypass plans for critical pump stations, investing in smartcover manhole monitoring systems and rehabbing, and replacing sewer mains to reduce the reoccurrence of a sewer spill. Engineering staff and Operations staff work together to develop a robust Capital Improvement Program. Projects include PLC replacements, electrical improvements at pump stations such as adding generator plugs, automatic/manual transfer switches and SCADA improvements. 2025 3SSO10324 3 616 20-MAR-26 Municipal(Public) 72200 10 32 6 2 9 1 0 2 0 1 NA 14 186 48 35 15 2 0 0 100 15 7 36 42 0 0 100 0 0 None 0 6 20 15 56 2 1 0 0 0 100 0 2 0 16 0 0 0 0 0 18 0 4 2 11 0 0 0 0 0 17 3 69.3 13 3 400322963 001, null WWTP other agency N NA 8 4 3 Y Y Root Intrusion NA Gravity Mainline NA None Roots intruding through an offset. Emergency repairs were completed on October 13, 2025 2023 4SSO10437 4 616 02-APR-24 Municipal(Public) 35296 5 28 3 1 6 1 1 0 0 0 n/a 0 77 0 98 2 0 0 0 100 0 0 0 0 0 0 0 10123 0 None 0 0 3 4 4 89 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 1 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 2 Y Y Other (specify below) Grease and rags Gravity Mainline none none 2024 4SSO10437 4 616 18-MAR-25 Municipal(Public) 34854 2 25 2 1 5 0 1 0 0 0 n/a 0 77.3 0 98 2 0 0 0 100 0 0 0 0 0 0 0 10123 0 None 0 0 3 4 4 89 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17.1 .1 4SSO11394 County Sanitatoin District No. 15 CS, Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, Whittier, CA SSS other agency N 0 0 2 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Will inspect the mainline via CCTV to determine if further action is needed Will inspect the mainline via CCTV to determine if further action is needed 2025 4SSO10437 4 616 03-MAR-26 Municipal(Public) 34989 25 4 2 1 0 0 0 0 0 0 0 0 77.2 0 98 2 0 0 0 100 0 0 0 0 0 0 0 10123 0 None -4 0 3 4 4 89 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14.4 .1 4B190107020 001, , CA SSS other agency N 0 0 2 Y Y Other (specify below) No SSO 2025 Other (specify below) No SSO 2025 No SSO 2025 No SSO 2025 2023 3SSO10326 3 616 19-MAR-24 Municipal(Public) 650 10 30 6 2 22 1 0 2 0 1 1 3 30 63 7 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 1 0 0 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 4 0 0 0 0 0 5 0 0 0 3sso10326 CSA 7 WWTP same agency N 3 2 0 Y Y Other (specify below) None Other (specify below) None None None 2024 3SSO10326 3 616 01-APR-25 Municipal(Public) 650 9 29 6 2 15 0 0 2 0 1 1 4 30 63 7 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 1 0 0 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 4 0 0 0 0 0 5 0 0 0 3sso10326 CSA 7 WWTP same agency N 3 2 0 Y Y Other (specify below) None Other (specify below) None None None 2025 3SSO10326 3 616 19-MAR-26 Municipal(Public) 650 10 32 6 2 9 1 0 2 0 1 NA 1 3 30 63 7 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 1 0 0 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 4 0 0 0 0 0 5 0 4.6 2.7 3 441000001 304.12 San Lorenzo HSA, , CA WWTP same agency N NA 3 2 0 Y Y Root Intrusion NA Gravity Mainline NA None The gravity main was treated with RootX 2023 4SSO10353 4 616 29-MAR-24 School 1400 0 3 1 5 0 0 0 0 0 0 0 0 3 50 0 0 50 0 0 100 0 0 0 0 0 0 0 12 10 Upper and Lower 10 0 2 48 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 NA NA SSS other agency N 0 0 0 0 Y Y Debris-General 0 Lower Lateral 0 0 Facility mainline has been scoped for infrastructure integrity and preventative maintenance opportunities. 2023 3SSO10329 3 616 18-MAR-24 Municipal(Public) 285 4 0 1 1 1 1 0 0 0 0 N/A 1 14 100 0 0 0 0 0 100 100 0 0 0 0 0 100 103 4 Lower only 6 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 6 0 0 0 0 0 0 0 7 0 0 0 3 270316559 Santa Lucia WW Recycling Facility (Prod/User), 1 Pronghorn Run Road, Carmel, CA 93923 WWTP same agency N N/A 3 0 0 Y Y Other (specify below) No Spills for the 2023 calendar year Other (specify below) No system infrastructure failures for the 2023 calendar year. No ongoing spill investigations for 2023 The SLCSD sewer system is a robust, well designed collection system for the community it serves. Observed deficiencies in the system are focused primarily on inflow and infiltration during peak rainfall events. To mitigate these concerns, we have installed manhole inserts and routinely inspect trouble areas to keep sheet flow of water as far away from the lids as possible. In addition, we inspect the interiors of the manholes for cracks in the grout lines and make repairs as needed. For 2024, we will be bringing in a private contractor for CCTV inspection of 4 miles of line to further assist our efforts of I/I reduction. 2024 3SSO10329 3 616 08-OCT-25 Municipal(Public) 285 2 6 1 2 1 1 0 0 0 0 All certifications are through CWEA 1 14 100 0 0 0 0 0 100 100 0 0 0 0 0 100 103 8 Lower only 6 1 99 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 6 0 0 0 0 0 0 0 7 0 7 7 3 270316559 Santa Lucia WW Recycling Facility (Prod/User), 1 Pronghorn Run Road, Carmel, CA 93923 WWTP same agency N N N/A N/A N/A 2 1 0 Y Y Other (specify below) No spills for the 2024 calendar year Other (specify below) No system infrastructure failures for the 2024 calendar year No ongoing spill investigations for the 2024 calendar year The SLCSD sanitary sewer system is well engineered and functions as per design. System capacity appears adequate to support the increase in hydraulic loading as homes continue to be built in the development and tied into existing infrastructure. Half of the system was flushed and inspected by CCTV this season. For 2025 (7) additional miles are slated for flushing and inspection. 2025 3SSO10329 3 616 20-MAY-26 Municipal(Public) 295 3 1 2 2 1 1 0 0 0 0 All certifications are through CWEA 1 14 100 0 0 0 0 0 100 100 0 0 0 0 0 100 103 8 Lower only 6 1 99 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 6 0 0 0 0 0 0 0 7 0 0 0 3 270316559 Santa Lucia WW Recycling Facility (Prod/User), 1 Pronghorn Run Road, Carmel, CA 93923 WWTP same agency N N N/A N/A N/A 2 1 0 Y Y Other (specify below) NO SPILLS FOR 2025 Other (specify below) NO INFRASTRUCTURE FAILURES FOR 2025 NO ONGOING SPILL INVESTIGATIONS FOR 2025 The SLCSD sanitary sewer system is will engineered and functions as per design. System capacity is adequate to support the increase in hydraulic loading as homes continue to be built in the development and tied into existing laterals. 2025 CCTV/Flushing budget was combined with 2024 budget when we did half of the system. We will be combining 2026/2027 budget in July and finishing the remaining 7 miles. 2023 4SSO10354 4 616 28-MAR-24 School 43000 1 5 1 1 0 0 0 0 0 0 NA 1 3 80 13 7 0 0 0 100 100 0 0 0 0 0 100 131 84 Upper and Lower 1 3 15 5 50 27 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 NA Los Angeles Country Sanitation District WWTP other agency N 1 0 0 Y Y Debris-wipes/Non-disposables Lower Lateral No ongoing investigations to note. No spills to report for the year. Preventative maintenance programs in place to clean and prevent FOG buildup has had a great impact on our campus. Our campus staff is responsive to any issues in an expeditious manner. 2024 4SSO10356 4 616 11-DEC-25 School 16500 2 5 1 1 0 0 0 0 0 0 NA 0 15 60 30 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 5 10 25 50 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 0 0 0 0 0 0 0 0 2 2 4SSO10450 001A, , CA SSS other agency 4B190106002 001, , CA WWTP other agency 4B190106001 001, , Los Angeles, CA 90039 WWTP other agency 4B190106004 001A, , CA WWTP other agency N 4SSO10450 0 0 0 Y Y Other (specify below) NA No Spills Other (specify below) NA No Spills NA No SPills NA No Spills 2023 4SSO10357 4 616 15-MAR-24 Municipal(Public) 53000 1 6 2 2 6 5 4 3 0 0 7 153 7 66 24 3 0 0 100 0 0 36 64 0 0 100 15130 0 None 0 0 5 30 60 5 0 0 0 0 100 0 1 3 0 0 0 0 0 0 4 0 0 1 0 0 0 0 0 0 1 7 80 65 4SSO10357 Camarillo Water Reclam. Plant CS, 601 Carmen Drive, Carmarillo, CA 93010 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 2 2 3 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure N/A Air Relief Valve (ARV)/ Blow-Off Valve (BOV) N/A NONE We have increased the inspections frequency and preventative maintenance on our air relief/blow off valves. 2024 4SSO10357 4 616 26-MAR-25 Municipal(Public) 47000 0 17 3 2 5 7 3 2 0 0 N/A 6.7 153 7 66 24 3 0 0 100 0 0 36 64 0 0 100 15130 0 None 0 0 5 30 60 5 0 0 0 0 100 0 1 3 0 0 0 0 0 0 4 0 0 1 0 0 0 0 0 0 1 6.7 69 51 4A560100001 Camarillo Water Reclamation Plant 150 Howard Rd. Camarillo, Ca 93012 WWTP same agency N N/A 2 2 3 Y Y Other (specify below) No Spills in the previous year. Other (specify below) No system infrastructure failures in the previous year. None. No spills in the previous year. Continuing to inspect system to identify any issue that may cause an SSO. 2025 4SSO10357 4 616 11-MAR-26 Municipal(Public) 47000 0 17 3 2 4 6 4 3 0 0 N/A 6.7 153 7 66 24 3 0 0 100 0 0 36 64 0 0 100 15179 0 None 0 0 5 30 60 5 0 0 0 0 100 0 1 3 0 0 0 0 0 0 4 0 0 1 0 0 0 0 0 0 1 6.7 82 58 4A560100001 001A, , Camarillo, CA WWTP same agency N N/A 2 2 3 Other (specify below) No spills in the previous year. Other (specify below) No system infrastructure failures in the previous year. None. No spills in the previous year. We continue to inspect system to identify any issues that may cause an SSO. 2024 4SSO10439 4 616 07-APR-25 Municipal(Public) 147067 8 4 1 1 4 2 0 1 0 0 n/a 1 280 3 86 10 1 0 0 100 71 29 0 0 0 0 100 35717 313 Upper and Lower 15650 0 2 2 95 1 0 0 0 0 100 0 0 7 0 0 0 0 0 0 7 0 0 2 0 0 0 0 0 0 2 0 203 3 4SSO10439 Torrance City CS 3031 Torrance Boulevard, Torrance, CA SSS other agency N 0 0 10 Y Root Intrusion Grease and rags Gravity Mainline None CCTV Inspections, more frequent maintenance and/or repair 2025 4SSO10439 4 616 25-MAR-26 Municipal(Public) 147067 6 6 1 1 2 0 1 1 0 0 NA 1 280 3 86 10 1 0 0 100 71 29 0 0 0 0 100 35717 313 Upper and Lower 15650 0 2 2 95 1 0 0 0 0 100 0 0 7 0 0 0 0 0 0 7 0 0 2 0 0 0 0 0 0 2 0 298 3 4SSO10439 Torrance City CS, 3031 Torrance Boulevard, Torrance, CA 90503 SSS other agency N NA 0 0 10 Y Y Root Intrusion Grease and rags Gravity Mainline NA None CCTV inspections, more frequent maintenance and/or repair 2023 4SSO10440 4 616 28-MAR-24 Municipal(Public) 220 10 7 1 5 1 0 0 0 0 0 NA 0 44 0 0 0 0 0 100 100 0 0 0 0 0 0 0 5600 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 3 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N NA 0 0 0 Y Y Fats, Oil and Grease (FOG) NA Lower Lateral NA None Address and fix sewer system problems as quickly as possible. To prevent overflows and allow businesses to quickly return to their day-to-day operations. 2024 4SSO10440 4 616 26-MAR-25 Municipal(Public) 220 10 7 1 5 1 0 0 0 0 0 NA 0 44 0 0 0 0 0 100 100 0 0 0 0 0 100 100 5635 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 5 6.5 3.5 4SS011388 County Sanitation District Joint Outfall CS, Whittier, CA SSS other agency N NA 0 0 0 Y Y Fats, Oil and Grease (FOG) NA Lower Lateral NA None Address and resolve the sewer system issue as quickly as possible to prevent further overflows and allow businesses to resume their day-to-day operations without delay. 2025 4SSO10440 4 616 26-MAR-26 Municipal(Public) 220 10 7 1 5 1 0 0 0 0 0 N/A 0 45 1 42 51 6 0 0 100 0 0 0 0 0 0 0 5645 40 Upper and Lower .1 1 0 0 33 31 20 15 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5.5 4.5 4SS011388 County Sanitation District Joint Outfall CS Whittier, CA SSS other agency N N/A 0 0 0 Y N Fats, Oil and Grease (FOG) N/A Lower Lateral N/A N/A Address and resolve the sewer system issue as quickly as possible to prevent further overflows and allow businesses to resume their day-to-day operations without delay. 2023 4SSO10441 4 616 02-APR-24 Municipal(Public) 27356 5 28 3 1 6 1 1 0 0 0 n/a 0 97 0 93 6 1 0 0 100 0 0 0 0 0 0 0 8691 0 None 0 0 1 60 38 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 1 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 4 Y Y Other (specify below) No SSO in 2023 Other (specify below) No SSO in 2023 n/a n/a 2024 4SSO10441 4 616 23-DEC-25 Municipal(Public) 27356 2 25 2 1 5 0 1 0 0 0 0 96.5 0 93 6 1 0 0 100 0 0 0 0 0 0 0 8691 0 None 0 0 1 60 38 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5.2 0 4B190107020 001, , CA WWTP other agency N 0 0 4 Y Y Other (specify below) No SSO in 2024 Other (specify below) No SSO in 2024 n/a n/a 2025 4SSO10441 4 616 25-MAR-26 Municipal(Public) 28214 25 4 2 1 0 0 0 0 0 0 0 0 96.5 0 93 6 1 0 0 100 0 0 0 0 0 0 0 8691 0 None 0 0 1 60 38 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7.4 0 4B190107019 Pomona Water Reclamation Plant, 295 Humane Way, Pomona, CA 91766 WWTP other agency N 0 0 4 Y Y Other (specify below) N/A Other (specify below) N/A 0 N/A 2025 4SSO10443 4 616 31-MAR-26 Municipal(Public) 84556 0 7 1 1 0 0 0 0 0 0 N/A 0 259.8 37 58 4 0 0 1 0 0 0 0 0 0 0 0 28000 0 None 0 1 0 4 15 61 15 1 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 100 30 4B190107020 1965 South Workman Mill Road Whittier, CA 90601 WWTP other agency N N/A 5 0 0 Y Y Root Intrusion Fats, Oil and Grease (FOG), Pipe structural problem/failure, debris (General) Gravity Mainline Manhole, aging pipe segments. No ongoing spill investigations. Routine cleaning and maintenance, inspections, root control, grease management, and repair and replacement of aging pipe. 2023 4SSO10444 4 616 02-APR-24 Municipal(Public) 35840 4 3 4 2 4 1 1 0 0 0 N/A 1 71 0 84 10 6 0 0 0 100 0 0 0 0 0 0 6064 0 None 0 0 0 92 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 28420 159167 4B190106001 001, , Los Angeles, CA 90039 WWTP other agency 4B190106002 001, , CA Y N La Canada Flintridge City CS 4SSO10397 N/A 0 0 0 Y Y Other (specify below) No Spills in 2023 Other (specify below) No Spills in 2023 None Finalizing a Wastewater Master Plan to identify and prioritize repairs to system deficiencies. 2024 4SSO10444 4 616 27-MAR-25 Municipal(Public) 35840 3 2 1 3 5 0 2 1 0 0 0 1 71 0 84 10 6 0 0 100 100 0 0 0 0 0 100 6064 0 None 0 0 0 92 8 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.3 10 4B190106001 001, , Los Angeles, CA 90039 WWTP other agency 4B190106002 001, , CA WWTP other agency Y N La Canada-Flintridge City CS 4SSO10397 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 4SSO10444 4 616 27-MAR-26 Municipal(Public) 20193 4 5 2 3 2 1 2 1 0 0 1 71 0 84 10 6 0 0 100 100 0 0 0 0 0 100 6064 0 None 0 0 0 92 8 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 18 2 4B190106001 001, , Los Angeles, CA 90039 WWTP other agency 4B190106002 001, , CA WWTP other agency Y N La Canada Flintridge City CS 4SSO10397 N/A 0 0 0 Y Y Debris from Lateral Debris in private lateral overflowing from cleanout. Upper Lateral Private Lateral None Homeowner called plumber out to address immediate issue causing the discharge. Spoke with customer on-site about placement of cleanout and crossing of flood channel. This lateral is a shared connection with neighboring homes so come coordination will be needed to upgrade their connection. Current analysis and review of legal authority to enforce movement of flood channel crossing. 2023 4SSO10449 4 616 28-MAR-24 Municipal(Public) 130000 3 7 2 1 2 0 2 2 0 0 3 415 10 50 20 20 0 0 0 0 0 50 0 50 0 0 35000 17 None 0 1 9 20 60 10 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 10 187 39 4A560112001 9600 Santa Rosa Camarillo, Ca 93012 WWTP same agency N N/A 8 5 0 Y Y Root Intrusion Gravity Mainline No ongoing spill investigations. -Spill Event Id: 885870 - Valley Spring Dr./ Kingston Circle, abandoned unused stub out sewer main section that caused stoppage from root intrusion. Filled with concrete. Completed 09/13/2023. - Spill Event ID: 887401- Southwest Pipeline lined Flittner Circle pipe sections with root intrusion and deterioration. Completed May of 2023. - Spill Event ID 890982 - City staff performed confined space and chipped asphalt out of the manhole structure on Lynn Road and Janss Road intersection. Completed 10/30/2023. - Citywide lining project completed in 2023 on infrastructure of approximately 17,000 feet of sewer main and 38 manholes. - Repair failed liner/bubble liner at Oaks Mall. - Installed 97 Service Lateral Connection inserts to repair lateral connections. - Contracted services performed 4 urgent repairs on gravity sewer mainlines. 2024 4SSO10449 4 616 01-JUL-25 Municipal(Public) 130000 1 6 2 1 1 1 2 2 0 0 3 415 10 50 20 20 0 0 100 0 0 50 0 50 0 100 38520 17 None .5 1 9 20 60 10 0 0 0 0 100 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 340 41 4A560112001 9600 Santa Roasa Camarillo, Ca 93012 WWTP same agency N 19 6 11 Y Y Root Intrusion Gravity Mainline Unit A and Unit Y inspecting CIPP lines for liner condition, and to look for debris in interceptor. - Spill Event ID 894416 - Paige Ln Siphon/Combes Avenue, adjusted hydro cleaning schedule to every month. - Spill Event ID 895331 - 2665 Hillcrest Drive, installed access straps across manholes in easement behind parking lot to prevent illicit dumping. - Spill Event ID 897419 - 3303 Kimber Drive, adjusted hydro cleaning schedule to every 3-months. - Spill Event ID 898716 - 2051 El Monte, adjusted hydro cleaning frequency to cut roots to 6-month schedule. - Spill Event ID 898717 - 2771 Calle Quebracho, adjusted hydro cleaning frequency to 1-month schedule. - CI project to replace 220 Feet of pipe on Wendy Drive completed. - Urgent repair of collapsed outside drop manhole completed on Kanan Road. - Urgent spot repair on severe offset joint on Calle Angosta completed. - Urgent separated lateral/void repaired on Faculty Drive. - Emergency repair Unit A for failed CIPP liner. CCTV inspecting all lines in project. Currently ongoing. 2025 4SSO10449 4 616 26-MAR-26 Municipal(Public) 125000 2 6 2 1 0 0 3 2 0 0 3 415 10 50 20 20 0 0 100 0 0 50 0 50 0 100 38783 18 None .5 1 9 20 60 10 0 0 0 0 100 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 287 33 4A560112001 9600 Santa Roasa Camarillo, Ca 93012 WWTP same agency N N/A 21 14 21 Y Y Debris from Construction Debris from construction/general debris caused are largest spill in 2025. Other major spill causes included root intrusion in the City main and root intrusion from a private sewer lateral. Manhole Sewer mains and root intrusion from private laterals. The City is not conducting any ongoing investigations. The LA Regional Board did request information regarding the 726 Flaming Star Avenue-Hiking Trail Easement, Spill event ID 900329. - Flaming Star section of failed CIPP liner replaced with PVC pipe. Unit A and Unit Y easement televised post spill to evaluate CIPP liner condition. - Unit W 30 inch cleaned and televised as part of CI 5445, several access manways placed on the 42 and 30 parallel lines, A-Structure 30-inch valves replaced, Calle Salto valves replaced, two of the four Calle Shappel valves replaced, D-Structure rehabbed on inside, W-1, A-Structure, and W/F Structures inspected. - Maintenance Hole Rehabilitation put together for 2026 rehab. This included some manholes related to 2025 SSO incidents. - CI 5686 Thousand Oaks Blvd. CIPP lining of 20” (4,123’); 18” (6,622’); 15” (3,275); 12” (232’), 658 vertical feet of manholes rehabbed/lined, and 136 top hat inserts installed into lateral connection to City main. - Unit W adjusted timing and communication equipment for Unit W flow transfers to improve flow transfer operations. 2023 4SSO10450 4 616 03-APR-24 Municipal(Public) 3586055 22 250 16 8 127 17 11 8 0 281 18 6093 3 80 12 3 2 0 100 31 5 23 31 10 0 100 579208 0 None 0 0 6 5 21 31 26 9 2 0 100 0 0 4 3 5 0 0 0 0 12 0 0 2 8 1 0 0 0 0 11 18 6693 476 4B190106002 12000 Vista del Mar Boulevard, Playa Del Rey, CA 90293 WWTP same agency Y N Beverly Hills 4SSO10370 N Burbank 4SSO10373 N Culver City 4SSO10381 N El Segundo 4SSO10386 N Glendale 4SSO10388 See Attachment 2 1 275 Y Y Root Intrusion Gravity Mainline No ongoing spills investigation Any known deficiency is addressed with a capital improvement project 2024 4SSO10450 4 616 21-MAY-25 Municipal(Public) 3586055 30 256 19 12 109 18 11 8 0 188 NA 16.3 6102 3 80 12 3 2 0 100 27 3 17 29 24 0 100 580570 0 None 0 0 6 5 21 31 26 9 2 0 100 0 0 4 3 5 0 0 0 0 12 0 0 2 8 1 0 0 0 0 11 16.3 6905.7 475.1 4B190106002 12000 Vista Del Mar Boulevard, Playa Del Rey, CA 90293 WWTP same agency Y N City of Beverly Hills 4SSO10370 N City of Burbank 4SSO10373 N City of Culver City 4SSO10381 N City of El Segundo 4SSO10386 N City of Glendale 4SSO10388 Various. See Attachment 3 1 275 Y Y Root Intrusion NA Gravity Mainline NA No ongoing spill investigations Any known deficiency is addressed with a Capital Improvement Project 2025 4SSO10450 4 616 01-APR-26 Municipal(Public) 3586055 35 250 19 12 110 20 11 8 0 196 28.3 6649.6 3 80 12 3 2 0 100 23 6 19 36 16 0 100 615872 0 None 0 0 6 5 21 31 26 9 2 0 100 0 0 4 7 5 0 0 0 0 16 0 0 2 4 1 0 0 0 0 7 28.3 6796.2 616.6 4B190106002 12000 Vista Del Mar Boulevard, Playa Del Rey, CA 90293 WWTP same agency N N Beverly Hills 4SSO10370 N Burbank 4SSO10373 N Culver City 4SSO10381 N EL Segundo 4SSO10386 N Glendale 4SSO10388 See Attachment 3 1 318 Y Y Root Intrusion Gravity Mainline No Ongoing Spill Investigations Any identified deficiency is addressed with an appropriate capital improvement project or modification in maintenance schedule 2023 3SSO10331 3 616 22-MAR-24 Municipal(Public) 11900 1 5 1 1 0 0 0 0 0 0 one wastewater grade 5 certified operator. Two grade 2 wastewater operators. One grade 3 wastewater operator. One grade 1 wastewater operator. One wastewater operator-in-training. 8 55 40 50 10 0 0 0 100 100 0 0 0 0 0 100 3738 12 None 1 2 13 35 50 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 2 4 0 0 0 0 0 0 7 3 15 0 3 440103001 Scotts Valley WWTP 700 Lundy Lane Scotts Valley CA 95066 WWTP same agency N 6 3 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Other (specify below) Collection system inundated with I/I during major storm events none CIPs for collection system inspection and monitoring, collection system pipeline upgrades, regular manhole inspections. 2024 3SSO10331 3 616 01-APR-25 Municipal(Public) 11900 2 3 1 1 0 0 0 0 0 0 We have two Operator-in-Training. One Grade 5 Operator. One Grade 2 Operator. Two Grade 1 Operators. 8 55 40 50 10 0 0 0 100 100 0 0 0 0 0 100 3738 12 None 1 2 13 35 50 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 2 4 0 0 0 0 0 0 7 3 8 0 3 440103001 001, , CA SSS same agency N 6 3 0 Y Y Debris-General Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Replaced ARV Ongoing CIPs for the collection system. This includes replacing pipeline that is at capacity, root cleaning, jetting hotspots regularly 2025 3SSO10331 3 616 11-MAR-26 Municipal(Public) 11900 2 2 1 1 0 0 0 0 0 0 We currently have four Grade 1 operators. One Grade 3 operator. One Grade 5 operator 8 50 40 50 10 0 0 0 100 100 0 0 0 0 0 100 3745 12 None 1 2 13 35 50 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 2 4 0 0 0 0 0 0 7 3 5 0 3 440103001 001, , CA SSS same agency N 6 3 0 Y Y Root Intrusion Manhole none Putting together a list of CIPs to be completed over the next 2-5 years. Also working on a Master Plan to address issues within the collection system 2023 3SSO10332 3 616 28-MAR-24 Municipal(Public) 47374 2 8 1 1 8 1 0 0 0 9 NA 3 172 40 39 16 5 0 0 100 100 0 0 0 0 0 100 13589 19 None 1 0 12 24 24 2 0 0 0 38 100 0 1 0 0 0 0 0 0 0 1 0 5 7 1 0 0 0 0 0 13 0 67 5 3550100001 1500 Southside Drive Gilroy, CA 95020 WWTP other agency N NA 86 0 30 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a None Point Repairs, PM schedules and outreach. System repairs through CIP projects. 2024 3SSO10332 3 616 10-DEC-25 Municipal(Public) 47374 4 7 1 1 9 1 0 0 0 2 N/A 3.2 169.1 33 42 16 9 0 0 100 91 9 0 0 0 0 100 14513 19 None 1 0 12 24 24 2 0 0 0 38 100 0 1 0 0 0 0 0 0 0 1 0 5 7 1 0 0 0 0 0 13 0 63 7.1 3 430100001 South County Regional Wastewater Authority 1500 Southside Drive Gilroy 95020 WWTP other agency N N/A 86 0 30 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None Point Repairs, PM schedules and outreach. System repairs through CIP projects. 2025 3SSO10332 3 616 25-MAR-26 Municipal(Public) 45483 3 20 2 1 11 2 0 0 0 2 N/A 3.2 163 35 41 17 5 0 0 100 91 9 0 0 0 0 100 14513 19 None 1 0 12 24 24 2 0 0 0 38 100 0 1 0 0 0 0 0 0 0 1 0 5 7 1 0 0 0 0 0 13 0 86.4 22.9 35501100001 1500 Southside dr Gilroy Ca. 95020 WWTP other agency N N/A 86 2 29 Y Y Fats, Oil and Grease (FOG) Gravity Mainline none Point repairs, Preventative Maintenance, Outreach. System repairs through CIP projects 2023 3SSO10334 3 616 29-MAR-24 Municipal(Public) 36000 3 1 1 5 3 1 0 0 0 0 1 73 86 5 7 1 0 0 99 1 0 0 0 0 0 1 7231 0 None 0 0 2 0 49 49 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 72 5 3sso10296 Monterey One Water Reg Trtmt & Outfall Sys CS, 5 Harris Court, D Monterey, CA 93940 SSS other agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Updating preventative measure lists and regularly performing maintenance for the hot spot locations of root intrusion, jetting, and FOG. 2024 3SSO10334 3 616 25-MAR-25 Municipal(Public) 36000 2 2 0 1 4 2 0 0 0 0 1 73 86 5 7 1 0 0 99 1 0 0 0 0 0 1 7231 0 None 0 0 2 0 49 49 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 103.9 4.2 3sso10296 Monterey One Water Reg Trtmt & Outfall Sys CS, 5 Harris Court, D Monterey, CA 93940 SSS other agency N 1 0 0 Y Y Debris-Rags Debris - Rags, Construction, General Roots FOG Gravity Mainline None Updating preventative maintenance lists and regularly performing maintenance for hot spot locations (FOG, root intrusion, jetting, FOG). 2025 3SSO10334 3 616 23-MAR-26 Municipal(Public) 36000 3 0 1 0 4 1 0 0 0 0 1 73 86 5 7 1 0 0 99 1 0 0 0 0 0 1 7645 0 None 0 0 2 0 49 49 0 0 0 0 100 0 0 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 109.3 3.4 3sso10296 Monterey One Water Reg Trtmt & Outfall Sys CS, 5 Harris ct, Building D Monterey, CA 93940 SSS other agency N 3 0 0 Y Y Debris-Rags Debris - Rags, Construction, General Roots FOG Gravity Mainline Generally due to construction tie-ins, and Utilities-Contractors hitting the pipe. None Updating preventative maintenance lists as well as: routine root abatement performed by in-house and contractors, routine FOG inspections, and routing hydro jetting (Monthly and quarterly) of known problem locations. 2023 3SSO10335 3 616 05-APR-24 Municipal(Public) 24925 1 4 3 1 1 0 0 0 0 2 NASSCO: 3 4 40 15 50 25 10 0 0 100 0 0 100 0 0 0 0 3 0 None 0 3 7 30 40 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 6 3SSO10335 Sewage Treatment Plant CS, P.O. Box 156 , Soledad, CA 93960 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA 0 0 0 0 N Y Flow Exceeded Capacity (Separate Collection System Only) NA Gravity Mainline NA NA Working with engineering team to address such deficiencies as: undersized gravity piping with old or outdated construction materials, and in the process of rehabilitating a few system manholes. Also utilizing consulting company to assist with newer required reporting protocols. 2024 3SSO10335 3 616 30-MAR-26 Municipal(Public) 24925 2 4 3 3 1 0 0 0 0 0 NASSCO PACP/LACP/MACP Certifications 3 staff members held this certification in 2024. 4 30 15 50 25 10 0 0 100 0 0 100 0 0 0 100 4450 60 Upper and Lower .5 3 7 30 40 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 270113001 34520 Morisoli Road, Soledad, CA 93960 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 N Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA NA Working with engineering team to address such deficiencies as: undersized gravity piping with old or outdated construction materials, and in the process of rehabilitating a few system manholes. Also utilizing consulting company to assist with newer required reporting protocols. In addition, preparing to install SewerWatch Manhole monitors to replace Mission M-84 units. 2025 3SSO10335 3 616 30-MAR-26 Municipal(Public) 24925 1 1 1 3 1 0 0 0 0 0 NASSCO: PACP/LACP/MACP Certification 3 staff members held this certification in 2025 4 30 15 50 25 10 0 0 100 0 0 0 0 0 0 0 4450 15 Lower only 16.8 3 7 30 40 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 3 270113001 34520 Morisoli Road, Soledad, CA 93960 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 N Y Debris-Rags NA Gravity Mainline NA NA Weekly manhole inspections (15 total) Monthly manhole inspections (20 total) for identified hotspots Sewer level monitoring at designated manholes FOG Education and outreach for Food Service Establishments Replacement of 1 Influent manhole (on CDCR mainline) at WRF 2023 3SSO10336 3 616 29-MAR-24 Municipal(Public) 6048 2 2 1 1 0 0 0 0 0 0 All employees other than the collection system operator are Certified State Wastewater Operators ranging from OIT I to Grade IV. Our Collection Operator Position is currently vacant along with the Utilities Director Position 56 32 75 15 10 0 0 0 0 50 0 50 0 0 0 0 2033 9 None 1 0 15 45 30 10 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 5 10 2 3420110001 City of Solvang Wastewater Treatment Facility WWTP same agency Y N Santa Ynez Community Services District N/A 4 2 4 N Y Fats, Oil and Grease (FOG) Other (specify below) We do not currently have system failure points to list. None The one area of concern we have comes from a private system on the Alisal Golf course. The area is checked every week to ensure blockages are caught before a spill occurs. The grease trap has been checked for proper maintenance at the upstream restaurant. We installed a smartcover on 3/29/2024 to ensure no spills occur. 2025 3SSO10336 3 616 30-MAR-26 Municipal(Public) 6046 1 4 1 1 1 0 0 0 0 0 1 10 75 15 10 0 0 0 100 50 0 50 0 0 0 100 2033 9 None 1 0 15 45 30 10 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 45 0 3420110001 City of Solvang 101 S. Alisal Rd. Solvang CA 93463 WWTP same agency Y N Santa Ynez Community Services District N/A 4 2 4 N Y Fats, Oil and Grease (FOG) Manhole None Root treatment from Dukes Roots. Smart cover monitoring system in trouble area. 2023 3SSO10337 3 616 29-MAR-24 Municipal(Public) 39000 3 5 1 1 0 0 0 0 0 0 The District has 8 State Water Resources Control Board Wastewater Treatment Plant Certified Operators. 2 Staff members have passed their certification tests, but do not have enough hours to receive certification. 0 9 0 0 25 75 0 0 100 0 0 0 0 0 0 0 12200 12200 None 0 0 0 5 95 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3SSO10337 South San Luis Obispo Sd CS, P.O. Box 339 , Oceano, CA 93445 WWTP same agency Y N City of Arroyo Grande 3SSO10255 N City of Grover Beach 3SSO10249 N Oceano Community Services District 3SSO10254 Not applicable 2 0 2 Y Y Other (specify below) 2015 and 2020 SSO Reports Attached. Other (specify below) 2015 and 2020 SSO Reports Attached. No ongoing investigations. A Trunk Sewer System Capacity Study was completed in 2006. It was concluded in the report that overall flow capacities were within the design flow capacities. The District's contracted Professional Engineering firm is currently analyzing the data as part of a Trunk Sewer Capacity System Study. As part of the Study, the Professional Engineering firm will identify potential capacity limitations to serve existing and future flow conditions. The Capacity Study is expected to be completed in Winter 2024. Additionally, the Professional Engineering firm is preparing an updated CIP as part of this project which will include priorities, triggers, and estimated project schedules. 2024 3SSO10337 3 616 28-JAN-26 Municipal(Public) 39000 2 7 1 1 0 0 0 0 0 0 NA 0 9 0 0 25 75 0 0 100 0 0 0 0 0 0 0 12200 0 None 0 0 0 5 95 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3 400111001 South San Luis Obispo County Sanitation District WWTP same agency Y N City of Arroyo Grande 3SSO10255 N City of Grover Beach 3SSO10249 N Oceano Community Services District 3SSO10254 NA 2 0 1 N Y Other (specify below) NA Other (specify below) NA NA The District is currently performing a Flow Capacity Study. As part of the Study, the Professional Engineering firm will identify potential capacity limitations to serve existing and future flow conditions. The Capacity Study is expected to be completed in 2025. Additionally, the Professional Engineering firm is preparing an updated CIP as part of this project which will include priorities, triggers, and estimated project schedules. 2025 3SSO10337 3 616 04-MAR-26 Municipal(Public) 39000 0 7 1 1 0 0 0 0 0 0 N/A 0 8.5 0 0 39 61 0 0 100 0 0 0 0 0 0 0 15151 0 None 0 0 0 5 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 400111001 310.31 Oceano HSA, , CA WWTP same agency Y N City of Arroyo Grande 3SSO10255 N City of Grover Beach 3SSO10249 N Oceano Community Services District 3SSO10254 N/A 2 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A The District is currently performing a Flow Capacity Study. As part of the Study, the Professional Engineering firm will identify potential capacity limitations to serve existing and future flow conditions. The Capacity Study is expected to be completed in 2026. Additionally, the Professional Engineering firm is preparing an updated CIP as part of this project which will include priorities, triggers, and estimated project schedules. 2023 3SSO10338 3 616 27-MAR-24 Other 1448 1 1 1 2 0 1 0 0 0 0 None 1 8 5 91 4 0 0 0 100 100 0 0 0 0 0 100 479 0 None 0 0 2 20 75 3 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 5 1 3SSO10338 Summerland SD CS, 2435 Wallace Ave , Summerland, CA 93067 WWTP same agency N 0 0 0 Y Y Other (specify below) No Spills To Report for 2023 Other (specify below) No Failures to Report for 2023 No Pending Investigations On Going System Cleaning. 2024 3SSO10338 3 616 20-NOV-25 Municipal(Public) 1448 0 1 1 2 1 1 0 0 0 0 None 1 8 5 91 4 0 0 0 100 100 0 0 0 0 0 100 480 0 None 0 0 2 20 75 3 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 2.3 .2 3 420111001 Summerland SD CS, 2435 Wallace Ave , Summerland, CA 93067 WWTP same agency N None 0 0 0 Y Y Other (specify below) No Spills to Report for 2024 Other (specify below) No Failures in 2024 No Pending Investigations. On Going System Cleaning and Inspection. 2025 3SSO10338 3 616 01-APR-26 Municipal(Public) 1448 1 3 1 1 1 1 0 0 0 0 NA 1 8 5 91 4 0 0 0 100 100 0 0 0 0 0 100 480 0 None 0 0 2 20 75 3 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 3 0 1.2 .2 3 420111001 Summerland SD CS, 2435 Wallace Ave , Summerland, CA 93067 WWTP same agency N 0 0 0 Y Y Other (specify below) No Spills to report for 2025 Pump Station - Controls Lift Station #1 wet well level sensor failed. The pump continued running, pumping the well dry. Replaced the sensor to correct the issue. No pending investigations. On Going System Cleaning. Monthly Grease Trap Inspections. 2023 3SSO10340 3 616 10-APR-24 Municipal(Public) 61506 4 7 1 2 1 0 6 0 0 0 NA .5 163.1 16 51 26 6 1 0 100 100 0 0 0 0 0 100 14201 22 None .2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 133.8 0 3SSO10340 Gilroy CS, , Gilroy, CA 95020 WWTP same agency Y Y City of Morgan Hill 3SSO010332 NA 13 0 13 N Y Fats, Oil and Grease (FOG) NA Manhole NA Crew's observation on what they observed when they cleared the blockage, and we conduct a video inspection to see what's the issue within the pipe. Based on crew's cleaning observations, and video inspections we either schedule and make the needed repair or we identify the needed CIP and submit it to the engineering department. 2024 3SSO10340 3 616 15-DEC-25 Municipal(Public) 61033 5 7 1 2 1 0 4 2 0 0 N/A .5 164.6 16 51 26 6 1 0 100 100 0 0 0 0 0 100 15788 22 None .2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 175.6 0 3 430100001 305.30 South Santa Clara Valley HA, , CA WWTP same agency Y Y City of Morgan Hill 3SSO010332 N/A 13 0 13 N Y Fats, Oil and Grease (FOG) N/A Manhole N/A There are no ongoing spill investigations at this time. When a spill occurs, staff will follow the Standard Operating Procedure for mitigating spills. This includes investigation, contacting witnesses, clearing the blockage, recording their findings, and, if deemed required, staff will use CCTV to acquire further details. Based on the findings, staff will provide a long-term plan to mitigate any potential future spills through repair and or replacement. Based on staff cleaning observations, and video inspections, staff will schedule a repair or replacement. If the issue is beyond the scope maintenance staff, we will develop a Capital Improvement Project. 2025 3SSO10340 3 616 27-MAR-26 Municipal(Public) 61033 0 4 1 1 0 1 1 2 0 0 N/A .2 172 16 51 26 6 1 0 100 100 0 0 0 0 0 100 15759 22 None .2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 181.9 2.9 3 430100001 305.30 South Santa Clara Valley HA, , CA WWTP same agency Y Y City of Morgan Hill 3SSO010332 N/A 13 0 13 N Y Fats, Oil and Grease (FOG) N/A Manhole N/A There are no ongoing spill investigations at this time. When a spill occurs, staff will follow the standard operating procedure for mitigating spills. This includes investigation, contacting witnesses, clearing blockages, recording their findings and, if deemed required, staff will CCTV to acquire further details. Based on findings, staff will provide a long-term plan to mitigate any potential future spills through repair and or replacement. Based on staff cleaning observations and video inspections, staff will schedule a repair or replacement. If any issue is beyond the scope of the maintenance staff, we shall develop a capital improvement project. 2023 3SSO10341 3 616 14-NOV-25 Municipal(Public) 350 2 2 1 1 1 1 1 0 0 2 NA 1 2 70 25 0 0 0 0 95 5 0 0 0 0 0 5 111 111 Lower only 1 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 1 0 3 350103001 305.50 San Benito River HA, , CA WWTP same agency N NA NA 0 0 0 Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA NA NA 2024 3SSO10341 3 616 14-NOV-25 Municipal(Public) 350 4 2 1 1 1 1 1 0 0 2 NA 1 2 70 25 0 0 0 0 95 5 0 0 0 0 0 5 111 111 Lower only 1 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 1 0 3 350103001 305.50 San Benito River HA, , CA WWTP same agency N N NA NA 0 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline NA NA 2025 3SSO10341 3 616 27-JAN-26 Municipal(Public) 350 3 3 2 1 1 1 1 0 0 2 NA 1 2 70 25 0 0 0 0 95 5 0 0 0 0 0 5 111 111 Lower only 1 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 1 0 3 350103001 305.50 San Benito River HA, , CA WWTP same agency N NA NA 0 0 0 N Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA NA NA 2023 3SSO10343 3 616 22-MAR-24 School 38455 0 7 2 1 0 0 0 0 0 0 N/A 1 23 5 20 67 0 0 8 100 49 0 34 0 0 17 100 470 462 Upper and Lower 16 1 25 17 36 17 0 0 0 3 100 0 0 0 2 1 0 0 0 0 3 0 2 5 8 2 0 0 0 1 18 0 25 25 3SSO11465 Goleta West SD CS, , Goleta, CA WWTP other agency 3 420102001 315.31 Goleta HSA, , CA WWTP other agency N N/A 0 0 0 Y Y Other (specify below) No spills Other (specify below) No system infrastructure failures N/A N/A 2024 3SSO10343 3 616 10-MAR-25 School 38455 0 7 2 1 0 0 0 0 0 0 NA 1.4 22.8 5 20 67 0 0 8 100 49 0 34 0 0 17 100 470 462 Upper and Lower 16 1 25 17 36 17 0 0 0 3 100 0 0 0 2 1 0 0 0 0 3 0 2 5 8 2 0 0 0 1 18 0 24 24 3SSO11465 Goleta Sanitary West WWTP other agency 3 420102001 Goleta Sanitary District WWTP other agency N NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 3SSO10343 3 616 26-MAR-26 School 38671 0 7 2 2 0 0 0 0 0 0 NA 1.4 22.8 5 20 67 0 0 8 100 49 0 34 0 0 17 100 470 462 Upper and Lower 16 1 25 17 36 17 0 0 0 3 100 0 0 0 2 1 0 0 0 0 3 0 2 5 8 2 0 0 0 1 18 0 3 24 3SSO11465 Goleta Sanitary West WWTP other agency 3 420102001 Goleta Sanitary District WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 2 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 3SSO10344 3 616 28-MAR-24 School 22854 0 6 1 1 0 0 0 0 0 1 1 13 25 38 37 0 0 0 100 100 0 0 0 0 0 100 410 410 Upper and Lower 7 0 10 30 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 4 4 0 0 0 0 0 0 2 1 4 3SSO10252 Santa Cruz City CS, 809 Center Street, 201 Santa Cruz, CA 95060 WWTP other agency N 0 0 0 Y Y Other (specify below) There were no major spills to report. Other (specify below) There were no major spills to report. None at this time. There were no deficiencies to address, only regular maintenance was performed. 2024 3SSO10344 3 616 19-MAR-26 School 23950 0 6 1 1 0 0 0 0 0 1 1 13 25 38 37 0 0 0 100 100 0 0 0 0 0 100 410 410 Upper and Lower 7 0 10 30 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 4 4 0 0 0 0 0 11 2 1 4 3SSO10252 Santa Cruz City CS, 809 Center Street, Santa Cruz WWTP other agency N 0 0 0 Y Y Other (specify below) There were no major spills to report. Other (specify below) There were no major spills to report. None at this time. There were no deficiencies to address, only regular maintenance was performed. 2025 3SSO10344 3 616 19-MAR-26 School 23819 0 6 1 1 0 0 0 0 0 1 1 13 25 38 37 0 0 0 100 100 0 0 0 0 0 100 410 410 Upper and Lower 7 0 10 30 60 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 4 4 0 0 0 0 0 11 2 1 4 3SSO10252 Santa Cruz City CS, 809 Center Street, Santa Cruz WWTP other agency N 0 0 0 Y Y Other (specify below) There were no major spills to report. Other (specify below) There were no major spills to report. None at this time. One short section of a failed lateral from the Cowell College Dining Commons to the sewer main was repaired. 2023 3SSO10345 3 616 04-MAR-25 Municipal(Public) 7308 0 2 1 1 1 1 2 0 0 4 California Water Environment Association (CWEA) 1 30.4 11 79 9 0 0 0 99 1 0 0 0 0 0 1 2536 0 None 0 0 18 10 72 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 4 0 4 4 3 420105001 Lompoc Regional Reclamation Plant 1801 W Central Lompoc CA 93436 WWTP other agency N none 0 0 0 Y Other (specify below) None Other (specify below) None None None 2024 3SSO10345 3 616 04-MAR-25 Municipal(Public) 7308 2 2 0 1 1 1 1 0 0 3 California Water Environment Association (CWEA) 1 30.4 11 79 9 0 0 0 99 1 0 0 0 0 0 1 2536 0 None 0 0 18 10 72 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 4 0 5 3 3 420105001 Lompoc Regional Reclamation Plant 1801 W Central Lompoc CA 93436 WWTP other agency N 0 0 0 0 Y Other (specify below) None Other (specify below) None None Budgeted funds for lining gravity mains and rehabilitate manholes 2025 3SSO10345 3 616 26-MAR-26 Municipal(Public) 7308 2 2 0 1 2 1 1 0 0 0 NA 1 30.4 11 79 9 0 0 0 99 1 0 0 0 0 0 1 2536 0 None 0 0 18 10 72 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 4 0 4.5 2.2 3 420105001 Lompoc Regional Reclamation Plant 1801 W Central Lompoc CA 93436 WWTP other agency N N N NA NA N NA NA N NA NA N NA NA None 0 0 1 N Y Other (specify below) None Other (specify below) None None Funds budgeted for lining gravity mains and rehabilitating manholes 2023 3SSO20005 3 616 28-MAR-24 Municipal(Public) 52000 2 19 4 3 5 6 5 4 0 1 3-American Water College Collection Systems Exam reviews 2 140 26 47 18 5 0 4 100 100 0 0 0 0 0 100 17525 0 None 0 0 5 80 15 0 0 0 0 0 100 0 0 1 1 0 0 0 0 0 0 0 4 6 0 0 0 0 0 0 0 0 180539 18120 3SSO20005 Watsonville CS, 250 Main Street, Watsonville, CA 95076-5080 SSS same agency Y N Freedom Sanitation District 3SSO10267 N Salsipuedes Sanitary District 3SSO10315 N Pajaro county Sanitation District 3SSO18097 N/A 1 0 3 N Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Manhole N/A None Continuous monitoring and upcoming SECAP update 2025 4SSO10349 4 616 24-MAR-26 Municipal(Public) 3460 3 5 2 3 0 0 0 0 0 0 NA 1.2 9 23 57 18 2 0 0 100 0 0 100 0 0 0 100 3500 0 None 0 0 39 0 61 0 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 9 3.6 4B190100001 Avalon WWTF, 123 Pebbly Beach Road, Avalon, CA 90704 WWTP same agency Y N Hamilton Cove Wastewater Collection System NA N Santa Catalina Island Company Descanso Beach NA N Fairview Terrace Condo Association NA N Sol Vista Condo Association NA N Santa Catalina Island Company Pebbly Beach Village NA NA 0 0 0 N Y Pipe Structural Problem/Failure - Controls Force main pipe break located right outside the Avalon Wastewater Treatment Plant. Hole in the pipe. Pumps at Pebbly lift station were shutoff before sewer spilled out at that site. However, businesses that gravity feed sewer that were lower than the wet well to Pebbly lift station backed up and out due to no flow control (no check valve or isolation valve). Force Main NA It was found that wear and age of the pipe caused the hole. The integrity of the force main pipe is currently being looked at. Inspect the integrity of the force main pipe to see if there's any other spots to worry about. 2023 6SSO10459 6B 616 01-APR-25 Municipal(Public) 450 1 13 2 1 0 2 0 0 0 0 None 1 5 0 92 8 0 0 0 100 100 0 0 0 0 0 100 208 0 None 0 8 0 92 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 2 1 none none SSS other agency N None 0 0 0 Y Y Other (specify below) None Other (specify below) None None None 2024 6SSO10459 6B 616 10-DEC-25 Municipal(Public) 601 4 16 3 1 0 3 0 0 0 0 .4 4.3 0 92 8 0 0 0 100 100 0 0 0 0 0 100 208 0 None 0 0 8 92 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.3 .1 4B190134001 Lake Hughes Community WWTP LA County DPW WWTP same agency N 0 0 0 Y Other (specify below) None Other (specify below) None None None 2025 6SSO10459 6B 616 26-MAR-26 Municipal(Public) 616 3 19 4 1 1 4 0 0 0 0 0 .5 4.4 0 92 8 0 0 0 100 100 0 0 0 0 0 100 211 0 None 0 0 8 92 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.3 .1 4B190134001 Lake Hughes Community Wastewater Treatment Plant WWTP same agency N 0 0 0 Y Y Other (specify below) No SSO in 2025 Other (specify below) No SSO in 2025 No SSO in 2025 No SSO in 2025 2023 4SSO10460 4 616 02-APR-24 Municipal(Public) 80000 4 27 7 3 0 6 6 3 0 0 n/a 4 52 0 2 36 54 8 0 100 0 0 100 0 0 0 100 0 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25 5 1 4B190104001 Tapia Water Reclamation Facility, 731 Malibu Canyon, Calabasas, CA 91302 WWTP same agency N N n/a 2 2 2 Y Y Other (specify below) none. Other (specify below) none. none. n/a 2024 4SSO10460 4 616 16-MAR-26 Municipal(Public) 80000 9 28 8 3 2 7 6 3 0 0 4 52 0 2 36 54 8 0 100 0 0 100 0 0 0 100 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 25 4.1 .7 4B190104001 Tapia Water Reclamation Facility, 731 Malibu Canyon, Calabasas 91302 WWTP same agency N N n/a 2 2 2 Y Y Other (specify below) none. Other (specify below) none. none. n/a 2025 4SSO10460 4 616 23-MAR-26 Municipal(Public) 80000 14 32 8 4 4 6 5 2 0 0 4 52 0 2 36 54 8 0 100 0 0 100 0 0 0 100 0 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 25 11.7 3.4 4B190104001 Tapia Water Reclamation Facility, 731 Malibu Canyon Rd., Calabasas, CA 91302 WWTP same agency N N n/a 2 2 2 Y Y Other (specify below) No exact determination but pipe age is a factor Other (specify below) n/a n/a n/a 2023 4SSO10465 4 616 02-APR-24 Municipal(Public) 4050 2 17 2 1 1 2 1 0 0 0 0 5 0 92 8 0 0 0 100 0 0 0 0 0 0 0 187 0 None 0 0 2 0 98 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4B190107048 Malibu Mesa WPCP WWTP same agency N 0 0 0 Y Y Other (specify below) no sso in 2023 Other (specify below) n/a n/a n/a 2024 4SSO10465 4 616 01-APR-25 Municipal(Public) 490 3 10 1 1 1 0 1 0 0 0 0 4.9 0 89 11 0 0 0 100 0 0 0 0 0 0 0 187 0 None 0 0 2 0 98 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4B190107048 Malibu Mesa WPCP WWTP same agency N 0 0 0 Y Y Other (specify below) no sso in 2024 Other (specify below) N/A N/A N/A 2025 4SSO10465 4 616 26-MAR-26 Municipal(Public) 1083 3 19 4 1 1 4 0 0 0 0 0 0 2.7 0 87 13 0 0 0 100 0 0 0 0 0 0 0 187 0 None 0 0 2 0 98 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4B190107048 Malibu Mesa Wastewater Reclamation Plant WWTP same agency N 0 0 0 Y Y Other (specify below) No SSO in 2025 Other (specify below) No SSO in 2025 No SSO in 2025 No SSO in 2025 2023 4SSO10471 4 616 27-MAR-24 Municipal(Public) 35781 3 8 2 1 1 5 3 2 1 0 4 107 14 55 25 6 0 0 100 25 25 50 0 0 0 100 9875 0 None 0 0 21 54 25 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 2 13 2 4SSO10471 MWTF, 9550 East LA Ave., Moorpark, CA WWTP same agency N 8 3 0 Y Y Natural Disaster (specify below) See attachment.. Gravity Mainline Yes; awaiting final response from State. Purchased SMART manholes to monitor flows of remote pipes. 2024 4SSO10471 4 616 15-DEC-25 Municipal(Public) 35781 2 8 2 1 1 2 3 3 0 0 4 107 14 55 25 6 0 0 100 25 25 50 0 0 0 100 9875 0 None 0 0 21 54 25 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 0 13 2 4A560103002 East Las Posas, null WWTP same agency N 8 3 0 Y Y Other (specify below) No spills in 2024. Other (specify below) No system infrastructure failures 2023 - Waiting for final response from state Utilizing consultants to help prevent future spills/blockages 2023 4SSO10477 4 616 07-FEB-25 Municipal(Public) 23000 0 4 1 1 0 1 0 4 0 0 N/A 4 118 29 48 18 5 0 0 100 10 0 90 0 0 0 100 7651 0 None 0 1 1 25 67 4 2 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 3 2 36 28 4A560104001 001, , Ventura, CA WWTP same agency N N/A 3 1 10 Y Y Natural Disaster (specify below) In the aftermath of heavy rainfall, local rivers were overwhelmed, which caused the river path to change direction and erode embankments where the district sewer line had been buried. Gravity Mainline N/A No We have evaluated all the ACP within OVSD’s sewerage system since the spill on 2/22. We replaced 100 LF of damaged 18in and 21in ACP immediately, beginning construction on 2/23/24. We rehabilitated 440 LF of poor condition 18in ACP on 3/4/24. We are in design now on the rehabilitation of approximately 3,500 LF of 18in and 21in ACP that we plan to bid this Spring and rehabilitate this Summer. We are also in design to rehabilitate the remaining 3,450 LF of 21in and 24in ACP in this trunk line. We intend to rehabilitate that portion in the Summer of 2025. Due to cost, we may have to split the work over 3-4 years instead of 2, but we are hoping to get competitive pricing to complete the work by the end of 2025. We have an additional 350 LF of 8in, 1,100 LF of 16in, 1,200 LF of 18in, and 1,450 LF of 21in ACP in our sewer system that appears to be in good condition. In the long term, we plan to rehabilitate with CIPP or burst with HDPE all remaining ACP within our system. 2024 4SSO10477 4 616 28-MAR-25 Municipal(Public) 23000 1 3 1 1 1 1 0 3 0 0 N/A 4 118 29 48 18 5 0 0 100 10 0 90 0 0 0 100 7651 0 None 0 1 1 25 67 4 2 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 3 1 74 14 4A560104001 001, , Ventura, CA WWTP same agency N N/A 3 1 10 Y Y Pipe Structural Problem/Failure - Controls N/A Gravity Mainline N/A No The February 2024 sewer spill revealed some system deficiencies. These pipe segments were inspected in 2022, but the severity of these deficiencies was not apparent during the CCTV inspection performed at that time. Immediately after the spill, OVSD replaced the damaged asbestos cement pipe (ACP) segment that caused the SSO with PVC pipe. OVSD inspected all ACP near the spill location. OVSD determined the two segments immediately upstream of the spill pipe segment were in a deteriorated condition. OVSD rehabilitated those segments with cured-in-place pipe (CIPP) on an emergency basis. OVSD determined that the ACP downstream of OVSD’s Meiners Oaks Siphon (MO Siphon) were in worse condition than the pipelines upstream of the MO Siphon tie-in, likely due to turbulent siphon flows and H2S gas exposure. OVSD went out to public bid on a CIPP rehabilitation of 5,070 LF of trunk sewer beginning at the downstream tie-in of the MO Siphon. 5,070 LF of CIPP rehabilitation was completed 12/2024. 2025 4SSO10477 4 616 27-MAR-26 Municipal(Public) 23000 1 3 1 1 0 2 0 3 0 0 Two Collections Operators hold a Plant Maintenance Technologist Grade 1 4 118 29 48 18 5 0 0 100 10 0 90 0 0 0 100 7651 0 None 0 1 1 25 67 4 2 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 0 2 0 0 0 0 0 0 2 .5 66 35 4A560104001 001, , Ventura, CA WWTP same agency N N/A 13 2 10 Y Y Root Intrusion N/A Gravity Mainline N/A No In 2025, the District completed a Capital Improvement Project focused on rehabilitating aging sewer mains and trunk sewer lines. The project included the rehabilitation, through Cured-In-Place Pipe (CIPP) lining, of approximately 1,000 feet of trunk sewer located within an easement, as well as 2,900 feet of 6-, 8-, and 10-inch diameter sewer mains. 2023 4SSO10479 4 616 15-SEP-25 Municipal(Public) 250000 2 29 2 2 5 2 2 0 0 0 10 396 2 70 18 8 2 0 100 16 16 59 9 0 0 100 0 0 None 0 0 15 30 30 10 10 5 0 0 100 0 5 2 2 0 0 0 0 0 9 0 4 2 0 0 0 0 0 0 6 2 119 26 4A560105001 Oxnard Water Resource Recovery Facility, 6001 Perkins Road, Oxnard, CA 93033 WWTP same agency Y N City of port Hueneme 4SSO10419 N Channel Islands Beach Community Service District 4SSO11406 N Ventura County Naval Base Construction battalion center N/A N Ventura county Service Area No. 34 El Rio 4SSO11364 N Ventura county Service Area No. 34 Nyeland acres 4SSO 11371 No, Ventura County Naval Base Point Mugu Facility -WDID = N/A 2 2 0 Y Y Fats, Oil and Grease (FOG) None Gravity Mainline None None None needed at this time. 2024 4SSO10479 4 616 24-DEC-25 Municipal(Public) 275000 2 28 2 2 6 2 4 0 0 0 CWEA 10 396 2 70 18 8 2 0 100 16 16 59 9 0 0 100 0 0 None 0 0 15 30 30 10 10 5 0 0 100 0 5 2 2 0 0 0 0 0 9 0 4 2 2 0 0 0 0 0 6 2 119 26 4A560105001 City of Oxnard WW Treatment Plant 6001 Perkins Rd Oxnard CA,93033 WWTP same agency Y N City of Port Hueneme 4SSO10419 N Channel Islands Beach Community Service District 4SSO11406 N Ventura County Naval Base Construction Battalion center N/A N Ventura County service area No. 34 El Rio 4SSO11364 N Ventura County service area No. 34 Nyeland acres 4SSo11371 No, Ventura County Naval Base Point Mugu Facility -WDID = N/A 2 2 0 Y Y Fats, Oil and Grease (FOG) None Gravity Mainline None None None needed at this time 2025 4SSO10479 4 616 02-APR-26 Municipal(Public) 250000 2 28 1 2 9 1 4 0 0 0 10 396 2 70 18 8 2 0 100 16 16 59 9 0 0 100 0 0 None 0 1 15 30 30 9 10 5 0 0 100 0 5 2 2 0 0 0 0 0 9 0 4 2 0 0 0 0 0 0 6 2 205.1 29.2 4A560105001 WWTP 6001 Perkins Rd Oxnard Ca,93033 SSS same agency Y N City of Port Hueneme 4SSO10419 N Channel Islands Beach Community Service District 4SSO11406 N Ventura County Naval Base Construction Battalion center N/A N Ventura County service area No. 34 El Rio 4SSO11364 N Ventura County service area No. 34 Nyeland acres 4SSo11371 No, Ventura County Naval Base Point Mugu Facility -WDID N/A 2 2 0 Y Y Debris-General No Spills in 2025 Gravity Mainline None None None needed at this time 2023 4SSO10486 4 616 26-MAR-24 Municipal(Public) 29800 2 3 2 1 3 0 1 0 0 0 All certified by CWEA 1 59 40 35 24 1 0 0 100 100 0 0 0 0 0 100 6502 30 Upper and Lower 1 0 6 17 30 17 30 0 0 0 100 0 1 1 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 3 15 15 4SSO10486 Santa Paula CS, 926 Calpipe Rd, Santa Paula, CA 93061 WWTP same agency N 0 1 0 Y Y Other (specify below) Root Intrusion, Fats Oils and Grease, General Debris Other (specify below) Lower and Upper Laterals, Gravity mainline There are no ongoing spill investigations CCTV inspection and cleaning 25% of collection system annualy 2023 4SSO10487 4 616 29-MAR-24 Municipal(Public) 1130 2 10 2 2 0 3 1 0 0 0 All certified by CWEA 1 4 21 63 16 0 0 0 100 100 0 0 0 0 0 100 278 0 None 0 0 42 0 0 58 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 4 4SSO10487 Saticoy S.D. CS, 1419.5 Lirio Street, CA 93003 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline There are no ongoing spill investigations Perform CCTV inspections in support of operation and maintenance activities. Manhole inspections are conducted during line cleaning, TV inspections, and individually. Structural deficiencies are identified and a necessary improvements list is developed and implemented systematically. The Rehabilitation and Replacement Plan implementation entails a variety of short- and long-term activities that ensure the sustainability of the sanitary sewer system infrastructure. 2024 4SSO10487 4 616 20-MAR-25 Municipal(Public) 1463 2 10 2 2 0 3 1 0 0 0 All certified by CWEA 1 4 21 63 16 0 0 0 100 100 0 0 0 0 0 100 278 0 None 0 0 42 0 0 58 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 4 4SSO10487 Saticoy S.D. CS, 1419.5 Lirio Street, CA 93003 WWTP same agency N 0 0 0 N N Debris-General Gravity Mainline There are no ongoing spill investigations Perform CCTV inspections in support of operation and maintenance activities. Manhole inspections are conducted during line cleaning, TV inspections, and individually. Structural deficiencies are identified and a necessary improvements list is developed and implemented systematically. The Rehabilitation and Replacement Plan implementation entails a variety of short- and long-term activities that ensure the sustainability of the sanitary sewer system infrastructure. 2023 4SSO10489 4 616 01-MAR-24 Municipal(Public) 125971 2 6 1 2 1 2 0 2 0 5 Not Applicable. 3 382 1 81 12 4 2 0 100 98 2 0 0 0 0 100 36644 0 None 0 0 7 28 55 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 4 246 71 4SSO10489 Simi Valley CS, 600 West Los Angeles Avenue, Simi Valley, CA 93065 WWTP same agency N Not Applicable. 2 0 0 N Y Debris-General Not Applicable. Manhole None. None. None. 2024 4SSO10489 4 616 03-NOV-25 Municipal(Public) 126365 2 6 1 2 2 3 0 2 0 0 Not Applicable 3 382 1 81 12 4 2 0 100 98 2 0 0 0 0 100 36644 0 None 0 0 7 28 55 1 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 4 360 72 4A569101002 Simi Valley WQCP, 600 West Los Angeles Avenue, Simi Valley, CA 93065-1642 WWTP same agency N Not Applicable 2 0 0 N Y Debris-General Not Applicable Manhole None Enhanced cleaning routine 2025 4SSO10489 4 616 19-MAR-26 Municipal(Public) 126356 0 7 1 1 2 4 0 2 0 0 Not Applicable 3 382 1 81 12 4 2 0 100 98 2 0 0 0 0 100 36644 0 None 0 0 7 28 55 1 0 0 0 0 100 0 0 0 0 98 0 0 0 0 0 3 0 0 0 98 0 0 0 0 3 4 202.6 54.6 4A569101002 Simi Valley WQCP, 600 West Los Angeles Avenue, Simi Valley, CA 93065-1642 WWTP same agency N N Not Applicable 2 0 0 N Y Debris-General Manhole None Enhanced Cleaning routine Quarterly's Known problem areas addressed every 3 months. Grease, Roots, Sags, Etc. 2023 4SSO10491 4 616 03-APR-24 Municipal(Public) 133709 22 250 16 8 127 17 11 8 0 281 Not applicable 14 296 2 80 14 4 0 0 100 14 10 23 47 6 0 100 29662 0 None 0 0 5 7 23 22 31 10 0 0 100 0 1 0 4 1 2 0 0 0 8 0 4 1 2 3 0 0 0 0 10 14 238 6 4B190106005 TIWRP 445 Ferry Street, San Pedro, CA 90731 WWTP same agency Y N LA County Sanitation District #9 None N long Beach 4SSO11423 Not applicable 1 3 26 Y Y Other (specify below) Root Intrusion, Debris Gravity Mainline None Any known deficiency is evaluated and addressed with a capital improvement project. 2024 4SSO10491 4 616 21-MAY-25 Municipal(Public) 133709 30 256 19 12 109 18 11 8 0 188 Not applicable 12.4 294.5 2 80 14 4 0 0 100 14 10 23 47 6 0 100 29713 0 None 0 0 5 7 23 23 31 10 0 1 100 0 1 0 4 1 2 0 0 0 8 0 4 1 2 3 0 0 0 0 10 12.4 303.2 74.5 4B190106005 TIWRP 445 Ferry Street, San Pedro, CA 90731 WWTP same agency Y Y LA County Sanitation District #9 No WDID NA 1 3 26 Y Y Root Intrusion NA Gravity Mainline NA No ongoing spill investigations Any known deficiency is addressed with a capital improvement project 2025 4SSO10491 4 616 01-APR-26 Municipal(Public) 133709 35 250 19 12 110 20 11 8 0 196 NA 11.5 293.5 2 80 14 4 0 0 100 14 10 23 47 6 0 100 29716 0 None 0 0 5 7 23 23 31 10 0 1 100 0 5 1 6 4 2 0 0 0 18 0 2 0 0 0 0 0 0 0 2 11.5 292.8 30.7 4B190106005 TIWRP, 445 Ferry Street, San Pedro, CA 90731 WWTP same agency Y Y LA County Sanitation District # 9 No WDID NA 1 3 26 Y Y Root Intrusion NA Gravity Mainline NA No ongoing Spill investigations Any known system deficiency is addressed with a Capital Improvement Project or adjustment in maintenance schedule. 2023 4SSO10496 4 616 02-APR-24 Municipal(Public) 600 2 17 2 1 1 2 1 0 0 0 1 3 0 100 0 0 0 0 100 100 0 0 0 0 0 100 273 0 None 0 0 0 6 94 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 1 4B190107004 Trancas TP, Trancas Canyon WWTP same agency N 0 0 0 Y Y Other (specify below) no SSO in 2023 Other (specify below) n/a n/a n/a 2024 4SSO10496 4 616 01-APR-25 Municipal(Public) 784 3 10 1 1 1 0 1 0 0 0 n/a 1.2 2.9 0 95 5 0 0 0 100 98 2 0 0 0 0 100 273 0 None 0 0 0 6 94 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 1 4B190107004 Trancas Canyon, null WWTP same agency N 0 0 0 Y Y Debris-General Pipe Structure Problem failure Gravity Mainline Yes Currently, mainline is added to preventive maintenance 60-days Rodder periodic (Trancas Canyon Road MH No. 8 to 15). We will inspect sewer using CCTV to determine if adjustment is needed with the existing preventive maintenance periodic. 2025 4SSO10496 4 616 26-MAR-26 Municipal(Public) 722 3 19 4 1 1 4 0 0 0 0 0 1.2 2.9 0 95 5 0 0 0 100 98 2 0 0 0 0 100 271 0 None 0 0 0 6 94 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 1 1 4B190107004 Trancas Water Pollution Control Plant WWTP same agency N 0 0 0 Y Y Pipe Structural Problem/Failure - Controls Force Main No Repaired force main break. 2023 4SSO10497 4 616 22-MAR-24 Municipal(Public) 30000 0 6 1 1 2 1 1 0 0 0 0 4 125 3 104 17 1 0 0 125 3 1 0 0 0 0 4 10800 0 None 0 0 3 58 39 0 0 0 0 0 100 0 0 2 1 0 0 0 0 0 3 0 1 0 2 0 0 0 0 0 3 0 23 5 4SSO10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 WWTP same agency N 9 3 0 Y Y Other (specify below) No major spills in 2023 Other (specify below) No system failure points in 2023 None None 2024 4SSO10497 4 616 03-NOV-25 Municipal(Public) 30000 0 7 1 1 1 0 2 0 0 0 0 4 125 3 104 17 1 0 0 125 3 1 0 0 0 0 4 10800 0 None 0 0 3 58 39 0 0 0 0 0 100 0 0 2 1 0 0 0 0 0 3 0 1 0 2 0 0 0 0 0 0 0 43 6.5 4B190104001 001, , Calabasas, CA 91302 WWTP same agency 4B190106052 Donald C. Tillman WWRP, 6100 Woodley Avenue, Van Nuys, CA 91406 WWTP other agency N 0 9 3 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Other (specify below) No system failure points in 2024 None None 2023 4SSO10498 4 616 07-JAN-25 School 85000 1 6 2 1 0 0 0 0 0 0 0 11 4 95 1 0 0 0 100 0 0 0 0 0 0 0 170 170 Upper and Lower 1 1 15 40 34 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1.5 4B190106002 001, , CA Hyperion WWTP WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline None Ongoing preventative maintenance schedule and implementation of sewer management plan. 2024 4SSO10498 4 616 31-MAR-25 School 85000 2 4 2 1 0 0 0 0 0 0 NA 0 11 4 95 1 0 0 0 100 0 0 0 0 0 0 0 170 170 Upper and Lower 1 1 15 40 34 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1.5 4B190106002 001, , CA Hyperion WWTP WWTP other agency N NA 0 0 0 Y Y Debris-General NA Gravity Mainline NA NONE Ongoing preventative maintenance schedule, re-training for spill response and update of sewer management plan. 2025 4SSO10498 4 616 31-MAR-26 School 94401 2 16 5 1 0 0 0 0 0 0 N/A 0 11 4 95 1 0 0 0 100 0 0 0 0 0 0 0 170 170 Upper and Lower 1 1 15 40 34 4 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7.5 .5 4B190106002 001, , CA WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Gravity Mainline N/A None Improve preventative maintenance schedule and frequency, re-train staff for spill response, keep track of SSO data to find problem areas. 2023 4SSO10500 4 616 27-MAR-24 Municipal(Public) 2756 2 8 2 1 1 5 4 2 1 0 1 9 3 78 19 0 0 0 100 95 0 5 0 0 0 100 543 0 None 0 0 12 0 88 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 4SSO10500 Piru Treatment Plant WWTP same agency N 4 2 0 Y Y Other (specify below) None Pump Station - Power none na 2025 4SSO10500 4 616 24-MAR-26 Municipal(Public) 2756 3 8 2 1 0 2 3 1 0 0 1 9 3 78 19 0 0 0 100 95 0 50 0 0 0 100 543 0 None 0 0 12 0 88 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 7 0 4SSO10500 Piru Treatment Plant WWTP same agency N 4 2 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2023 4SSO10361 4 616 20-MAR-24 Municipal(Public) 17742 1 9 1 1 1 0 1 0 1 0 1 39 5 64 16 9 0 6 100 29 66 5 0 0 0 100 8883 8883 Lower only 35 0 10 64 26 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 3 1 0 0 0 0 0 0 0 0 29 2 4SSO10361 Camrosa CS, 7385 Santa Rosa Road, Camarillo, CA 93012 WWTP same agency N 3 0 2 N Y Fats, Oil and Grease (FOG) Other (specify below) Bellies in sewer can be failure point for Fats, Oil, and Grease None None 2024 4SSO10361 4 616 30-DEC-25 Municipal(Public) 17810 1 9 1 1 0 0 3 0 0 0 1 39 5 64 16 9 0 6 100 29 66 5 0 0 0 100 8481 8481 Lower only 35 0 10 64 26 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 3 1 0 0 0 0 0 0 6 0 26 .1 4A560106003 Camrosa Water Reclamation Facility 1900 S. Lewis Rd. Camarillo, 93012 WWTP same agency Y Y Camrosa CS, 7385 Santa Rosa Road, Camarillo, CA 93012 4SSO10361 3 0 2 N Y Fats, Oil and Grease (FOG) Other (specify below) Bellies in the sewer system can be a failure point for Fats, Oils, and Grease (FOG) None We are addressing collection system hot spots where maintenance is required more often than usual. These locations have been identified and are currently in the engineering phase for refurbishment. There were 15 hot spots identified. 2025 4SSO10361 4 616 09-MAR-26 Municipal(Public) 17810 0 1 1 2 0 0 3 0 0 0 NA 1 39 5 64 16 9 0 6 100 29 66 5 0 0 0 100 8481 8481 Lower only 35 0 10 64 26 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 3 1 0 0 0 0 0 0 6 0 30.6 .4 4A560106003 Camrosa Water Reclamation Facility 1900 South Lewis Road, Camarillo, CA 93012 WWTP same agency Y Y Camrosa CS, 7385 Santa Rosa Road, Camarillo, CA 93012 4SSO10361 NA 3 0 2 N Y Fats, Oil and Grease (FOG) NA Other (specify below) Bellies in the sewer system can be a failure point for Fats, Oils, and Grease (FOG) NA We addressed collection system hot spots where maintenance is required more often than usual. We cleaned all hot spots and are being refurbished. 2023 3SSO10244 3 616 19-MAR-24 Municipal(Public) 11650 1 2 4 2 5 5 2 4 0 0 N/A 4 80 75 16 7 2 0 0 100 97 3 0 0 0 0 100 6455 0 None 0 1 2 3 20 30 20 20 4 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 2 0 0 0 0 0 112 13 3SSO10244 Carmel Area Wastewater District Collection System, P.O. Box 221428 , Carmel, CA 93922 WWTP same agency N n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 4 3 0 Y Root Intrusion Gravity Mainline The two Cat one spill that we had this year, one was due to a Power pole that was installed into our sewer line ( that has ben fixed). The other one was a pipe that was damaged by a slide. That has been replace and reinforced. This year CAWD has performed a system wide analyst. Pump stations, Manholes and sewer lines were evaluated. 2024 3SSO10244 3 616 10-JUL-25 Municipal(Public) 11650 1 2 2 1 5 5 2 4 0 5 N/A 4.2 85 71 13 13 3 0 0 0 97 3 0 0 0 0 0 6455 0 None 0 1 2 3 20 30 20 20 4 0 100 0 0 0 0 0 0 0 0 0 0 1 1 0 1 3 2 0 0 0 8 0 77 2 3 270101001 Carmel Area WWTP 26900 State Route One Carmel-By-The-Sea CA 93923 WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 4 4 0 Y Y Debris-General Manhole N/A 2 Spills this calendar year. This first one has been repaired already. Spill from roots growing in from a abandoned connection. The second spill is currently being engineered. We have increased cleaning and install Smartcovers until repair. 2025 3SSO10244 3 616 22-JAN-26 Municipal(Public) 11650 2 2 4 2 7 3 3 6 0 0 N/A 4 82 70 21 7 2 0 0 100 97 3 0 0 0 0 100 6465 0 None 0 6 2 3 20 27 18 20 4 0 100 0 0 0 0 0 0 0 0 0 0 1 1 0 1 3 2 0 0 0 8 0 116 3 3 270101001 Carmel Area Wastewater District 26900 State Route One Carmel,CA 93922 WWTP same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 4 4 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Force Main N/A No Repair made on damaged pipe, no further actions needed. 2023 4SSO10362 4 616 28-MAR-24 Municipal(Public) 83750 3 3 1 1 1 2 2 1 0 5 130 1 1 87 8 4 0 0 100 0 100 0 0 0 0 100 0 0 None 0 0 0 0 10 30 60 0 0 0 100 3 1 0 0 0 0 0 0 0 4 2 1 0 0 0 0 0 0 0 3 0 130 20 SSO11395 County Sanitation District No. 16 CS, , CA WWTP other agency N 0 0 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline CCTV investigation revealed buildup of grease and solid material on the the gravity mainline. Educational material regarding proper disposal was given to residents in the sorrounding area. We installed a smart cover to detect SSOs before discharge to the public. Also, a sewer liner was installed at the spill location. 2024 4SSO10362 4 616 01-DEC-25 Municipal(Public) 79776 3 3 2 3 2 2 2 0 0 2 2.5 125.5 1 87 8 4 0 0 100 0 13 0 0 0 0 100 0 0 None 0 3 0 0 10 30 57 0 0 0 100 3 1 0 0 0 0 0 0 0 4 2 1 0 0 0 0 0 0 0 3 0 128 25 4B190107016 Whittier Narrows Water Reclamation Plant 301 Rosemead Blvd South El Monte, CA 91733 WWTP other agency N 0 0 5 Y Y Fats, Oil and Grease (FOG) Gravity Mainline CCTV investigation revealed grease build up and solid material on the gravity mainline. The City implemented dye test for all new FSE permits and discovered the DFUs were bypassing the installed interceptor. The FSE was given a notice of violation and properly connected the DFUs. We install smart covers at locations and mark these locations as hot spots for additional monitoring. 2025 4SSO10362 4 616 25-MAR-26 Municipal(Public) 81000 3 3 2 2 2 1 2 0 0 2 1.4 128.5 1 87 8 4 0 0 100 1 87 8 4 0 0 100 0 0 None 0 4 0 0 10 30 57 0 0 0 100 3 1 0 0 0 0 0 0 0 4 2 1 0 0 0 0 0 0 0 3 0 200 35 SSO11395 County Sanitation District No. 16 CA, CA WWTP other agency N N/A. 0 0 5 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A. The City continually conducts dye test at FSEs to ensure proper connections for new businesses as well as ownership changes. Routine CCTV occurs to assess any other issues in the system. The City installed larger lines and additional smart covers. 2023 4SSO10363 4 616 26-MAR-24 Municipal(Public) 58232 2 5 1 4 2 0 1 0 0 0 0 0 138 0 96 4 0 0 0 100 0 0 0 0 0 0 0 13372 0 None 0 0 1 2 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 194 136 4DW0575 Arcadia City WS, 11800 Goldring Road PO Box 60021 , Arcadia, CA 91066-6021 SSS same agency 4B198101003 Live Oak Well, 622 Live Oak Road, Arcadia, CA 91006 SSS same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 6 N Y Fats, Oil and Grease (FOG) And roots Other (specify below) none 0 CIP Project 2024 4SSO10363 4 616 02-APR-25 Municipal(Public) 60000 2 5 1 4 2 0 1 0 0 0 0 0 138 0 96 4 0 0 0 100 0 0 0 0 0 0 0 13372 0 None 0 0 1 2 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 194 136 4DW0575 Arcadia City WS, 11800 Goldring Road PO Box 60021 , Arcadia, CA 91066-6021 SSS other agency 4B198101003 Live Oak Well, 622 Live Oak Road, Arcadia, CA 91006 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 6 N Y Fats, Oil and Grease (FOG) roots, wipes Other (specify below) none 0 CIP Projects 2025 4SSO10363 4 616 18-MAR-26 Municipal(Public) 60000 2 5 1 4 2 0 1 0 0 0 0 0 138 0 96 4 0 0 0 100 0 0 0 0 0 0 0 13372 0 None 0 0 1 2 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 194 136 4DW0575 Arcadia City WS, 11800 Goldring Road PO Box 60021 , Arcadia, CA 91066-6021 SSS same agency 4B198101003 Live Oak Well, 622 Live Oak Road, Arcadia, CA 91006 SSS same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 6 N Y Fats, Oil and Grease (FOG) roots Other (specify below) none 0 CIP Project 2023 3SSO10245 3 616 02-APR-24 Municipal(Public) 13154 4 4 3 2 8 4 1 4 0 0 State Water Resources Control Board Certifications (3) Operator Grade 3 Certified (1) Operator Grade 5 Certified (3) Operator in Training 1 5 42 12 58 29 1 0 0 100 75 25 0 0 0 0 100 6690 496 Upper and Lower 3 1 15 18 44 10 12 0 0 0 100 0 0 0 2 0 2 0 0 0 4 0 2 1 1 0 0 0 0 0 4 0 22 13 3SSO10245 Carpinteria Sd CS, 5300 Sixth Street, Carpinteria, CA 93013 WWTP same agency N 11 3 3 Y Y Debris-General Lower Lateral N/A Put on a schedule preventative maintenance. 2024 3SSO10245 3 616 21-JUL-25 Municipal(Public) 13154 4 7 3 1 6 1 1 3 0 4 NA 5 42 12 58 29 1 0 0 100 75 25 0 0 0 0 100 6690 853 Lower only 4.8 1 15 18 44 10 12 0 0 0 100 0 0 0 2 0 2 0 0 0 4 0 2 1 1 0 0 0 0 0 4 0 42 8 3 420101001 Carpinteria SD, 5351 6th Street, Carpinteria, CA 93013 WWTP same agency N 11 3 3 Y Y Other (specify below) No major spill causes in 2024 Lower Lateral N/A Scheduled preventative maintenance 2025 3SSO10245 3 616 30-MAR-26 Municipal(Public) 16500 1 8 2 1 7 2 0 3 0 0 State Water Resources Control Board Certifications (3)-Grade 2 (2)-Grade 3 (1)-Grade 4 (2)-Grade 5 5 45 12 58 29 1 0 0 100 75 25 0 0 0 0 100 4525 853 Lower only 4.8 1 15 18 44 10 12 0 0 0 100 0 0 0 2 0 2 0 0 0 4 0 2 1 1 1 0 0 0 0 4 0 66.4 23.4 3420101001 Carpinteria SD, 5351 6th Street, Carpinteria CA 93013 WWTP same agency N 11 3 3 Y Y Other (specify below) No major spill causes in 2025 Lower Lateral N/A Scheduled Preventative Maintenance 2023 4SSO10364 4 616 02-APR-24 Municipal(Public) 17608 6 26 3 1 1 1 1 0 0 0 0 45 0 93 7 0 0 0 100 100 0 0 0 0 0 100 3910 0 None 0 0 0 3 12 85 0 0 0 0 100 0 0 0 0 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency 4SSO11398 County Sanitation District No. 19 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 3 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10364 4 616 23-DEC-25 Municipal(Public) 17608 2 27 3 1 1 2 1 0 0 0 0 0 31.3 0 93 7 0 0 0 100 100 0 0 0 0 0 100 3910 0 None 0 0 0 3 12 85 0 0 0 0 100 0 0 0 0 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 20.7 .2 4B190107015 Los Coyote WRP LA County Sanitation District WWTP other agency N 0 0 3 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10364 4 616 16-MAR-26 Municipal(Public) 16359 3 26 3 1 2 2 1 0 0 0 0 0 31.3 0 93 7 0 0 0 100 100 0 0 0 0 0 100 3910 0 None 0 0 0 3 12 85 0 0 0 0 100 0 0 0 0 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 20.7 .1 4B190107015 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave., Cerritos, CA 90703 WWTP other agency N 0 0 3 Y Debris from Construction Manhole The mainline will be televised to determine if further action is needed. The mainline will be televised to determine if further action is needed. 2023 3SSO10250 3 616 27-MAR-24 Municipal(Public) 8923 0 1 1 0 0 0 0 0 0 0 NA 0 14 50 35 10 5 0 0 100 100 0 0 0 0 0 100 2000 15 Upper and Lower 15 0 20 50 0 30 0 0 0 0 100 0 1 0 1 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 0 0 14 1 3SSO10250 Guadalupe City CS, 918 Obispo Street, Guadalupe, CA 93434-1428 WWTP same agency N 0 0 2 N Y Fats, Oil and Grease (FOG) Force Main None replaced restricted force main section. 2024 3SSO10250 3 616 30-JAN-26 Municipal(Public) 8923 2 1 1 0 0 0 0 0 0 0 N/A 0 14 50 35 10 5 0 0 100 100 0 0 0 0 0 100 2000 15 Upper and Lower 15 0 20 50 0 30 0 0 0 0 100 0 1 0 1 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 0 0 14 1 3 420103001 312.10 Guadalupe HA, , CA WWTP same agency N 0 0 2 N Y Pump Station Failure - Controls Pump Station - Controls none City has taken control of the pump station and is doing proper maintenance. 2025 3SSO10250 3 616 09-MAR-26 Municipal(Public) 8923 2 1 1 0 0 0 0 0 0 0 N/A 0 14 50 35 10 5 0 0 100 100 0 0 0 0 0 100 2000 15 Upper and Lower 15 0 20 50 0 30 0 0 0 0 100 0 1 0 1 1 0 0 0 0 3 0 0 1 0 0 0 0 0 0 1 0 14 1 3 420103001 312.10 Guadalupe HA, , CA WWTP same agency N 0 0 2 N Y Other (specify below) No spills this year Other (specify below) Replacing an aging lift station on Guadalupe Street none Replacing aging lift station on Guadalupe Street. 2025 4SSO20071 4 616 24-JUL-25 Municipal(Public) 50000 2 11 3 1 0 0 0 0 0 0 N/A 0 80 1 85 13 1 0 0 100 0 0 0 0 0 0 0 194368 0 None 0 0 14 15 28 29 0 0 0 14 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 78 4.6 19I007080 Los Angeles County Sanitation District WWTP other agency N N/A 0 0 0 N Y Root Intrusion Other (specify below) N/A None City performs routine clearing of SSS. 2024 3SSO10252 3 616 01-APR-25 Municipal(Public) 65181 1 11 2 2 3 10 3 1 0 0 PE Civil Engineering 1 5.3 160 65 12 17 4 2 0 100 96 4 0 0 0 0 100 15130 0 None 0 0 7 23 45 12 13 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 19 38 0 0 0 0 43 100 5 100 5.5 3 440102001 Santa Cruz WWTP, 110 California Street, Santa Cruz, CA 95060 WWTP same agency Y N Santa Cruz County CSA 10 3sso10324 3 1 6 Natural Disaster (specify below) During a large storm a large tree fell on an aerial sewer line and broke it. Other (specify below) Debris and rags in gravity line None Annual capital improvement program identifies projects and sets budgets to complete sewer system rehabilitation projects. Collection system crews clean, inspect and repair sewer lines and pump stations regularly. City budgets $250,000 for private sewer lateral improvement incentive rebates under Municipal code skewer lateral ordinance. Annual root foaming program budgets $30,000 to treat about 2500 LF sewer line annually. Video inspections are performed after every SS spill. 2025 3SSO10252 3 616 30-MAR-26 Municipal(Public) 65000 0 12 2 2 2 10 2 1 0 0 PE Civil Engineering 3 staff: Wastewater System Manager, City Engineer, Senior Engineer 5 160 65 12 17 4 2 0 100 96 4 0 0 0 0 100 15130 85 Upper and Lower .8 0 7 23 45 12 13 0 0 0 100 0 0 19 38 0 0 0 0 43 100 0 0 0 0 0 0 0 0 0 0 5 97.9 5.5 3 440102001 Santa Cruz WWTP, 110 California Street, Santa Cruz, CA 95060 SSS same agency Y N Santa Cruz County Sanitation District 3SSO10324 N UCSC Sanitary Sewer System 3SSO10344 3 1 6 Y Y Root Intrusion none Gravity Mainline none none Annual capital improvement program identifies projects and sets budgets to complete sewer system rehabilitation projects. Collection system crews clean, inspect and repair sewer lines and pump stations regularly. City budgets $250,000 for private sewer lateral improvement incentive rebates under Municipal code sewer lateral ordinance. Annual root foaming program budgets $30,000 to treat about 2500 LF sewer line annually. Video inspections are performed after every SS spill. SSMP updated, certified and audited in 2025. 2023 4SSO10366 4 616 28-MAR-24 Municipal(Public) 81604 5 28 3 1 6 1 1 0 0 0 1 104 0 82 17 1 0 0 100 100 0 0 0 0 0 100 14832 0 None 0 0 0 3 94 3 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 22 15 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency N 0 0 1 Y Y Other (specify below) Roots and Grease Gravity Mainline None None 2024 4SSO10366 4 616 23-DEC-25 Municipal(Public) 68806 2 25 2 1 5 0 1 0 0 0 N/A .5 103.5 0 83 17 0 0 0 100 100 0 0 0 0 0 100 14832 0 None 0 0 0 3 94 3 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 34.9 0 4B190107020 San Jose Creek WRP LA County Sanitation District WWTP other agency N N/A 0 0 2 Y Y Other (specify below) No SS0 2024 Other (specify below) No SS0 2024 No SS0 2024 No SS0 2024 2023 9SSO10656 9 616 28-MAR-24 Municipal(Public) 43263 2 12 3 1 0 4 0 3 0 0 4 185 1 79 17 3 0 0 100 63 0 37 0 0 0 100 12467 151 Lower only 76 0 12 44 37 6 1 0 0 0 100 0 1 2 2 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 48 9 9SSO10658 City of San Diego SSS other agency Y N City of San Diego 9SSO10658 95 5 3 Y Y Root Intrusion The majority of spills are caused by buildup of paper products and/or grease held back by root intrusion. Lower Lateral Root intrusion in VCP joints in lower lateral. None Ongoing proactive root mitigation through contracted foaming, CCTV inspections, hydro-jetting, and pipelining, and SmartCover flow monitoring, as well as, planned system improvements to replace aging infrastructure through CIP projects. 2024 9SSO10656 9 616 01-APR-25 Municipal(Public) 43311 3 9 3 1 1 6 0 3 0 0 N/A 4 187 1 79 17 3 0 0 100 63 0 37 0 0 0 100 12496 151 Lower only 76 0 12 44 37 6 1 0 0 0 100 0 1 2 2 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 54 20 9SSO10658 City of San Diego SSS other agency Y N City of San Diego 9SSO10658 95 5 3 Y Y Root Intrusion The majority of the spilled cause by buildup of paper products and/or grease held back by root intrusion. Lower Lateral Root intrusion in VCP joints in lower lateral. None. Ongoing proactive root mitigation through contracted foaming, CCTV inspections, hydro-jetting, and pipelining, and SmartCover flow monitoring, as well as, planned system improvements to replace aging infrastructure through CIP projects. 2025 9SSO10656 9 616 31-MAR-26 Municipal(Public) 43325 0 12 3 1 1 6 0 3 0 0 N/A 4 187 1 79 17 3 0 0 100 63 0 37 0 0 0 100 12525 152 Lower only 76 0 12 44 37 6 1 0 0 0 100 0 1 2 2 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 64 24 9SSO10658 City of San Diego SSS other agency Y N City of San Diego 9SSO10658 95 5 3 Y Y Root Intrusion The majority of spills are caused by buildup of paper products and/or grease held back by root intrusion. Lower Lateral Root intrusion in VCP joints in lower lateral. None. Ongoing proactive root mitigation through contracted foaming, CCTV inspections, hydro-jetting, and pipe lining, and SmartCover flow monitoring, as well as planned system improvements to replace aging infrastructure through CIP Projects. 2023 9SSO10655 9 616 10-APR-24 Municipal(Public) 58967 1 4 1 1 1 1 0 0 0 0 N/A .2 105 37 46 14 3 0 0 100 0 0 100 0 0 0 100 8000 0 None 0 1 4 15 20 45 10 5 0 0 100 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 60 15 9SSO10658 3338573, 3848 Sorrento Valley Boulevard, San Diego, CA 92121 SSS other agency N 30 0 0 Y Y Other (specify below) Illegal dumping of construction debris into the sewer and root intrusion. Gravity Mainline None Outreach and education flyers for residents. Capital Improvement Program projects to address aging or deficient parts of sewer system. 2024 9SSO10655 9 616 01-APR-25 Municipal(Public) 58967 3 4 1 1 1 1 0 0 0 0 N/A .2 105 37 46 14 3 0 0 100 0 0 100 0 0 0 100 8000 0 None 0 1 4 15 20 45 10 5 0 0 100 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 60 15 9SSO10658 3338573, 3848 Sorrento Valley Boulevard, San Diego, CA 92121 SSS other agency N 30 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline None Outreach and education flyers for residents. Increase onsite FOG inspections of commercial facilities. Capital Improvement Program projects to address aging or deficient parts of sewer system. 2025 9SSO10655 9 616 01-APR-26 Municipal(Public) 58967 5 4 1 1 1 1 0 0 0 0 .2 105 37 46 14 3 0 0 100 0 0 100 0 0 0 100 9300 30 None .1 1 4 15 20 45 10 5 0 0 100 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 60 15 9SSO10658 3338573, 3848 Sorrento Valley Boulevard, San Diego, CA 92121 SSS other agency N 30 0 0 Y Y Root Intrusion Gravity Mainline None Property owner removed trees that were responsible for the root intrusion. Verified no further root intrusion after removal. 2023 4SSO10368 4 616 28-MAR-24 Municipal(Public) 47002 6 26 3 1 1 1 1 0 0 0 1 40 0 92 8 0 0 0 100 100 0 0 0 0 0 100 3986 0 None 0 2 0 3 0 95 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 32 1 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency Y N Commerce City 4SSO1037 0 0 2 Y Y Other (specify below) NO SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10368 4 616 23-DEC-25 Municipal(Public) 47002 2 27 3 1 1 0 1 0 0 0 n/a 1 40 0 91 8 1 0 0 100 100 0 0 0 0 0 100 3986 0 None 0 2 0 3 0 95 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 21 1 4B190107013 A. K. Warren Water Resource Facility LA County Sanitation District WWTP other agency Y N COMMERCE CITY 4SSO1037 N/A 0 0 2 Y Y Other (specify below) NO SSO 2024 Other (specify below) NO SSO 2024 NO SSO 2024 NO SSO 2024 2025 4SSO10368 4 616 19-MAR-26 Municipal(Public) 37565 3 26 3 1 2 2 1 0 0 0 0 .1 39.7 1 91 7 1 0 0 100 100 0 0 0 0 0 100 3986 0 None 0 2 0 3 0 95 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 18.6 .2 4B190107013 Joint Water Pollution Control Plant (A.K. Warrn Water Resource Facility), 24501 S Figueron St, Carson, CA WWTP other agency Y N COMMERCE CITY 4SSO1037 N/A 0 0 2 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None Inspected the sewer using CCTV and added sewer to a preventive maintenance program. 2023 9SSO10654 9 616 30-DEC-25 Municipal(Public) 26500 2 2 1 1 0 0 0 0 0 0 None 1 68 12 79 9 0 0 0 100 1 0 0 0 0 0 100 6839 0 None 0 0 5 8 41 45 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 12 42 5 9 000000275 Lands End Rd, San Diego, CA 92106 WWTP other agency N 0 0 0 Y Y Root Intrusion grease Gravity Mainline Manhole None CIP Projects, sewer cleaning, root foaming program, CCTV program to find issues 2024 9SSO10654 9 616 30-DEC-25 Municipal(Public) 27867 2 2 1 1 1 0 0 0 0 0 0 1 68 12 79 9 0 0 0 100 1 0 0 0 0 0 100 6911 0 None 0 0 5 8 41 12 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 12 48.7 3.3 9 000000275 001, , CA WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y Y Debris-General 0 Gravity Mainline 0 None CIP Projects, sewer cleaning, root foaming program, CCTV program to find issues 2025 9SSO10654 9 616 01-APR-26 Municipal(Public) 27895 3 2 1 1 2 2 0 0 0 0 0 1 68 12 79 9 0 0 0 100 1 0 0 0 0 0 100 6923 0 None 0 0 5 8 41 12 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 12 73.1 4.8 9 000000275 001, , CA WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y Debris-General 0 Gravity Mainline 0 None Began backlog of CIP Projects, increased sewer cleaning, continued root foaming program, increased CCTV program 2023 9SSO10653 9 616 26-MAR-24 Municipal(Public) 22795 5 4 2 1 9 1 1 0 0 0 Staff who have certification are certified by CWEA. 7 97 2 80 11 0 0 0 0 0 0 0 7 0 0 0 8043 0 None 0 0 20 25 5 40 10 0 0 0 0 6 6 6 6 6 6 0 0 0 0 20 20 20 20 20 20 0 0 0 0 1 94 94 9 000000541 IRWD Los Alisos WRP, 15600 Sand Canyon Avenue, Irvine, CA 92618-3100 WWTP same agency N N N/A 0 0 2 Y Other (specify below) Roots, air-release valve failure, and scheduled maintenance. Gravity Mainline N/A N/A Proactive inspections of the system. 2024 9SSO10653 9 616 21-MAY-25 Municipal(Public) 22795 2 6 2 1 7 2 1 1 0 0 N/A 7 97 2 80 11 0 0 0 0 0 0 0 7 0 0 0 8043 0 None 0 0 20 25 5 40 10 0 0 0 0 6 6 6 6 6 6 0 0 0 0 20 20 20 20 20 20 0 0 0 0 1 94 94 9 000000541 IRWD Los Alisos WRP, 15600 Sand Canyon Avenue, Irvine, CA 92618-3100 WWTP same agency Y N Emerald Bay 9SSO20065 N Smith Cliffs N/A N/A 0 0 7 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Increased inspections and consistent communication with residents. 2025 9SSO10653 9 616 26-MAR-26 Municipal(Public) 22795 6 3 2 1 4 2 0 1 0 0 n/a 7 97 2 77 12 3 0 2 97 0 0 0 7 0 0 7 8492 0 None 0 0 20 25 5 40 10 0 0 0 100 0 3 2 0 1 0 0 0 0 6 1 6 2 5 5 1 0 0 1 21 1 94 45 9 000000541 IRWD Los Alisos WRP, 15600 Sand Canyon Avenue, Irvine, CA 92618-3100 WWTP same agency Y N Emerald Bay Services District 9SSO20065 N Smithcliffs n/a n/a 0 1 7 Y Y Root Intrusion n/a Gravity Mainline n/a n/a conduct additional inspections; promote private sewer lateral program; increase communication with residents 2023 4SSO10369 4 616 28-MAR-24 Municipal(Public) 77312 6 26 3 1 0 0 0 0 0 0 1 54 0 95 5 0 0 0 100 0 0 0 0 0 0 0 12998 0 None 0 0 0 3 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 0 4SSO11389 County Sanitation District No. 3 CS, , Whittier, CA SSS other agency 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency N 0 0 7 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10369 4 616 23-DEC-25 Municipal(Public) 79190 4 27 3 2 1 2 1 0 0 0 N/A 0 98.1 0 95 5 0 0 0 100 0 0 0 0 0 0 0 12998 0 None 0 0 0 3 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55.4 .1 4B190107015 Los Coyote WRP LA County Sanitation District WWTP other agency N N/A 0 0 7 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10369 4 616 26-MAR-26 Municipal(Public) 79190 2 19 2 1 0 0 1 0 0 0 N?A 0 98.1 0 95 5 0 0 0 100 0 0 0 0 0 0 0 12998 0 None 0 0 0 3 10 87 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48.8 0 4B190107015 16515 Piuma Ave., Cerritos, CA 90703 SSS other agency N N/A 0 0 7 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Will inspect Sewer using CCTV to determine if further actions are needed. Will inspect Sewer using CCTV to determine if further actions are needed. 2023 9SSO10652 9 616 22-MAR-24 Municipal(Public) 60360 1 3 1 1 0 0 0 0 0 0 0 155 5 51 37 7 0 0 100 0 0 0 0 0 0 0 13000 41 Upper and Lower 1 5 5 5 10 35 30 9 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 206 6 9 000000275 PLWTP 1902 Gatchell Rd San Diego WWTP other agency Y N City of El Cajon 9SSO10649 N City of San Diego 9SSO10658 9 0 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Roots and Grease can cause issues but rarely large SSOs. Infrequent. Manhole None currently. Replacement CIP Strategy, City has large capital investment in I/I reduction and system replacement in order to serve customers and protect the environment. 2025 9SSO10652 9 616 16-MAR-26 Municipal(Public) 60537 4 2 1 1 0 0 0 0 0 0 N/A 0 155 5 51 37 7 0 0 100 0 0 0 0 0 0 0 13000 41 Upper and Lower 1 6 5 5 9 35 30 9 0 1 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 206 1 9 000000275 PLWTP 1902 Gatchell Rd San Diego WWTP other agency Y N City of El Cajon 9SSO10649 N City of San Diego 9SSO10658 9 0 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Roots and Grease Occasionally Manhole N/A None I/I Reduction, Sewer Replacement, Advanced Metering Technology 2023 4SSO10370 4 616 25-MAR-24 Municipal(Public) 32701 2 6 1 1 1 3 1 2 0 7 0 98 7 64 24 3 0 2 100 0 0 0 0 0 0 0 9968 0 None 0 0 0 3 27 18 49 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 260 5 4SSO10450 12000 Vista del Mar Blvd. Playa del Rey, CA 90293 WWTP other agency N 0 0 0 Y Y Debris from Lateral Gravity Mainline None. All SSO investigations were completed after an SSO event. City staff educated property owners and contractors to coordinate lateral cleaning with the City to prevent downstream blockage. 2024 4SSO10370 4 616 02-APR-25 Municipal(Public) 30974 0 9 1 1 1 2 1 2 0 0 NA 0 97.8 7 64 24 3 0 2 100 0 0 0 0 0 0 0 9968 0 None 0 0 1 2 27 18 49 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 209 3 4B190106002 12000 Vista Del Mar, Playa Del Rey, CA 90293 WWTP other agency Y N City of Los Angeles - Hyperion 4SSO10450 N County of Los Angeles - District 4 4SSO11390 0 0 0 Y Y Debris from Lateral Gravity Mainline Through the CCTV inspection program, the system has identified mainlines that need to be lined or repaired. Mainline issues have been addressed within the Capital Improvement Project process which was last completed in 2022 and a new project will begin in 2025. None. All spill investigation were completed in 2024. Public education to inform the City that 2025 4SSO10370 4 616 20-JAN-26 Municipal(Public) 31027 1 8 1 1 2 1 2 2 0 0 Certified through CWEA Certification Collection System Program 0 97.8 7 64 24 3 0 2 100 0 0 0 0 0 0 0 9968 0 None 0 0 1 2 27 18 49 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 250 21 4B190106002 12000 Vista Del Mar, Playa Del Rey, CA 90293 WWTP other agency Y N City of Los Angeles- Sanitation District 4SSO010450 N County of Los Angeles- District 4 4SSO11390 NOT APPLICABLE 0 0 0 Y Y Debris from Lateral Manhole None Continually educating property owners to maintain and coordinate lateral maintenance through newsletter, pamphlet, and social media posts. City updated the wastewater municipal code to clarify the responsibilities of property owners and the City. City continuous to implement Capital Improvement Project (CIP) schedule. 2023 9SSO10651 9 616 02-APR-24 Municipal(Public) 26137 1 3 1 1 3 2 0 1 0 3 5 46 23 68 8 1 0 0 100 4 5 25 66 0 0 100 5547 12 None 1 0 5 4 20 71 0 0 0 0 100 0 1 0 5 1 0 0 0 0 7 0 0 0 4 0 0 0 0 0 4 0 28 1 9SSO10651 City of Imperial Beach SSS other agency N N N City of San Diego Wastewater Collection System 9SSO10658 0 0 0 Y Root Intrusion Lower Lateral None Provide ongoing maintenance to the overall sewer system and attacking known hot spots on a more frequent schedule 2024 9SSO10651 9 616 01-APR-26 Municipal(Public) 26137 2 2 1 1 4 1 0 1 0 3 NA 5 46 23 68 8 1 0 0 100 4 5 25 66 0 0 100 5547 12 None 1 0 5 4 20 71 0 0 0 0 100 0 1 0 5 1 0 0 0 0 7 0 0 0 4 0 0 0 0 0 4 0 25 5 9SSO10651 City of Imperial Beach SSS other agency N N City of San Diego 9SSO10658 NA 0 0 0 Y Other (specify below) No spills Gravity Mainline NA None Provide ongoing maintenance to the overall sewer system and attacking known hot spots on a more frequent schedule 2025 9SSO10651 9 616 01-APR-26 Municipal(Public) 26137 1 2 1 1 1 2 0 1 0 2 NA 5 46 23 68 8 1 0 0 100 4 5 25 66 0 0 100 5547 12 None 1 0 5 4 20 71 0 0 0 0 100 0 1 0 5 1 0 0 0 0 7 0 0 0 4 0 0 0 0 0 4 0 12 3 9SSO10651 City of Imperial Beach SSS other agency N N City of San Diego 9SSO10658 NA 0 0 0 Y Other (specify below) No spills Gravity Mainline NA None Provide ongoing maintenance to the overall sewer system and attacking known hot spots on a more frequent schedule 2023 4SSO10371 4 616 28-MAR-24 Municipal(Public) 963 5 28 3 1 6 1 1 0 0 0 0 0 3 0 100 0 0 0 0 100 0 0 0 0 0 0 0 100 0 None 0 20 0 7 53 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47 0 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10371 4 616 23-DEC-25 Municipal(Public) 921 2 25 2 1 5 0 1 0 0 0 0 2.6 0 100 0 0 0 0 100 0 0 0 0 0 0 0 100 0 None 0 20 0 7 53 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .2 0 4B190107020 San Jose Creek WRP LA County Sanitation District WWTP other agency N 0 0 0 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10371 4 616 25-MAR-26 Municipal(Public) 806 25 4 2 1 0 0 0 0 0 0 0 0 2.6 0 100 0 0 0 0 100 0 0 0 0 0 0 0 100 0 None 0 20 0 7 53 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4B190107020 San Jose Creek Water Reclamation Plant, 1965, 1971 S. Workman Mill Rd., Whittier, CA 90601 WWTP other agency N 0 0 0 Y Other (specify below) N/A Other (specify below) N/A 0 N/A 2023 9SSO10650 9 616 28-MAR-24 Municipal(Public) 36400 1 5 1 1 0 3 1 2 0 0 N/A 5 124 8 84 8 0 0 0 100 1 0 99 0 0 0 100 10698 0 None 0 2 3 15 50 30 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 4 156 38 9 00000125 San Elijo WTPF, 2695 Manchester Ave, Cardiff, CA. 92007 WWTP other agency 9 000002951 Encina Wastewater Authority, 6200 Avenida Encinas, Carlsbad, CA 92011 WWTP other agency Y N Rancho Santa Fe Community Services District 9SSO10696 N/A 3 1 1 Y Y Inappropriate Discharge to Collection System Investigation is ongoing, During very heavy rain events (Above Normal, 1 or above) we have had two spills occur on Loch Lamond Drive. These spills have occurred within a 1-year period. When there is no rain, the sewer system runs at approximately 50% flow. When a heavy rain event occurs, the flow increases with the intensity of the rain. After very heavy rainfall for an extended amount of time, the sewer system becomes overwhelmed, and the MH begins to overflow. When the rainfall decreases, the MH stops overflowing. We know someone is pumping rainwater from their property into the sewer system, but as of 3/20/2024, we have not been able to detect the source of the illegal discharge. Other (specify below) We have CCTV'd the sewer system in the area of where the overflow occurs, we have not detected any pipe or other sewer system failures. Overflow investigation is ongoing, it's very difficult to investigate when it's not raining, as the sewer system has normal flows. City of Encinitas in in the process of performing a sewer system condition assessment. A consultant has been hired and they are doing the assessment now. Also, the City of Encinitas WWC Division CCTV's every sewer pipe after any spill. This helps us to determine the cause of most spills and develop a plan to prevent the spill from reoccurring. 2024 9SSO10650 9 616 25-MAR-25 Municipal(Public) 37100 1 6 1 1 2 2 2 1 0 0 5 124 7 82 11 0 0 0 100 1 0 99 0 0 0 100 10848 0 None 0 2 16 27 43 10 0 0 0 2 100 0 3 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 4 137 18 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Cardiff, CA 92007 WWTP other agency 9 000002951 Encina Wastewater Authority RGP 63, 6200 Avendia Encinas , Carlsbad, CA 92101 WWTP other agency Y N Rancho Santa Fe Community Services District 9SSO10696 N/A 3 1 1 Y Y Inappropriate Discharge to Collection System Suspect Illegal discharge from property owners to sewer system, Issue only occurs during heavy rain events. Investigation ongoing. Other (specify below) CCTV investigation shows no issues with the sewer pipe or MH's. Issue only occurs during large rain events. Suspect Homeowners are opening their Clean-outs and allowing their property flood water to enter sewer system. Only ongoing issue is Loch Lamond Drive. We launch an investigation whenever large rain events occur and the level in the pipe increases. As soon as the rain stops, the level in the pipe returns to normal. In 2024, the City hired consultants to perform a Sewer System Condition Assessment of our entire sewer system. The results of the condition assessment are being reviewed now and planning for future CIP projects are being budgeted. 2025 9SSO10650 9 616 26-MAR-26 Municipal(Public) 37000 0 7 1 1 1 2 2 2 0 0 4.9 122 7 81 11 0 0 1 100 25 0 75 0 0 0 100 10891 0 None 0 2 16 28 43 10 0 0 0 1 100 0 3 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 1 4 142 18 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency 9 000002951 Encina Wastewater Authority RGP 63, 6200 Avendia Encinas , Carlsbad, CA 92101 WWTP other agency Y N Rancho Santa Fe Community Services District 9SSO10696 3 1 1 Y Y Pipe Structural Problem/Failure - Installation Found top of the 8 VCP was damaged/missing. Within 24 hours of becoming aware of the problem, we hired a contractor and the pipe was repaired Gravity Mainline The only ongoing spill investigation is from the capacity spills occurring on Loch Lamond. There are no blockages causing the spills. The issue is illegal discharge of water to the sewer system during heavy rains. During large rain events, we see an increase in flow way above normal. At times, the pipe reaches capacity and overflows. We try to investigate where the water is coming from, but as soon as the rain stops. the flow returns to normal. When heavy rain is expected, we have a vacuum truck on-sight standing by in case of any issues. Investigation is ongoing. The City is continuing the repair and rehabilitation of the sewer system based on the Sewer Master Plan, Condition Assessment and Risk Assessment report. 2023 9SSO10649 9 616 06-APR-24 Municipal(Public) 105432 3 4 1 3 0 1 0 1 0 0 N/A 0 195 4 79 12 4 1 0 100 0 0 0 0 0 0 0 17100 0 None 0 0 3 8 79 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 126 2 N/A CITY OF SAN DIEGO SSS other agency N/A CITY OF LA MESA SSS other agency N/A COUNTY OF SAN DIEGO SSS other agency Y N COUNTY OF SAN DIEGO N/A N/A 16 0 12 Y Y Fats, Oil and Grease (FOG) All of the three Category 3 Sanitary Sewer Spills for El Cajon in 2023 were caused in part by FOG and in addition to Non flushable wipes. Gravity Mainline N/A N/A Addition of high frequency jetting in two locations of Sanitary Sewer Spills and installation of SmartCover Monitoring System in one location. 2024 9SSO10649 9 616 09-MAY-25 Municipal(Public) 102991 3 4 1 2 0 1 0 0 1 0 N/A 0 195 4 79 12 4 1 0 100 0 0 0 0 0 0 0 17100 0 None 0 0 3 8 79 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 205 2.1 N/A CITY OF SAN DIEGO SSS other agency N/A CITY OF LA MESA SSS other agency N/A COUNTY OF SAN DIEGO SSS other agency N N CITY OF SAN DIEGO N/A N/A 16 0 12 Y Y Construction Diversion Failure N/A Gravity Mainline N/A N/A Addition of root foaming locations and addition of new upsized sewer line under a freeway crossing. 2025 9SSO10649 9 616 12-MAR-26 Municipal(Public) 104909 2 5 1 2 0 1 0 1 0 0 N/A 0 195 4 79 12 4 1 0 100 0 0 0 0 0 0 0 17100 0 None 0 0 3 8 79 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 225.5 6.2 N/A CITY OF SAN DIEGO SSS other agency N/A CITY OF LA MESA SSS other agency N/A COUNTY OF SAN DIEGO SSS other agency N N/A 16 0 12 Y Y Debris from Lateral Gravity Mainline N/A ADDITION OF ROOT FOAMING LOCATIONS, POINT REPAIRS OF GRAVITY MAIN, LINING PROJECT. 2023 9SSO10648 9 616 28-MAR-24 Municipal(Public) 3929 2 6 1 2 3 1 1 0 0 0 NA 3 27 0 78 20 2 0 0 100 0 0 100 0 0 0 100 1670 0 None 0 2 3 37 36 22 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 21 0 9 000000275 001, , CA WWTP other agency 9 000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency N NA 1 1 0 Y Y Other (specify below) NA (No major spills occurred in 2023.) Other (specify below) NA (No system infrastructure failure points in 2023) None None 2024 9SSO10648 9 616 02-APR-25 Municipal(Public) 3919 0 8 1 2 2 2 2 0 0 0 3.8 27 0 78 20 2 0 0 100 0 0 100 0 0 0 100 1694 0 None 0 2 3 37 36 22 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 21 1.5 9 000000275 City of San Diego - Point Loma WWTP WWTP other agency 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency N N/A 1 1 0 Y Y Other (specify below) No major sills occurred in 2024. Other (specify below) N/A (no system infrastructure failures points in 2024) None None 2025 9SSO10648 9 616 03-MAR-26 Municipal(Public) 3919 1 6 0 1 3 0 1 0 0 0 1 27 0 78 20 2 0 0 100 0 0 100 0 0 0 100 1694 0 None 0 2 3 37 36 22 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 21 1 9 000000275 City of San Diego - Point Loma WWTP WWTP other agency 9000000125 San Elijo Water Campus, 2695 Manchester Avenue, Encinitas, CA 92007 WWTP other agency N N/A 1 1 0 Y Other (specify below) No major spills occurred in 2025 Other (specify below) N/A none none 2023 3SSO10255 3 616 22-MAR-24 Municipal(Public) 17963 1 5 1 1 0 0 0 0 0 0 n/a 1 70 23 62 14 1 0 0 100 53 47 0 0 0 0 100 6650 16 None 0 0 5 5 70 15 5 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 3 0 0 0 0 0 4 0 40 1 3SSO10337 South San Luis Obispo Sd CS, P.O. Box 339 , Oceano, CA 93445 WWTP same agency N 4 0 1 Y Y Root Intrusion Gravity Mainline none Five year capital project plan as described in the May 2023 Sewer System Management Plan. 2024 3SSO10255 3 616 13-MAR-26 Municipal(Public) 18000 1 1 1 1 0 0 0 0 0 0 1.2 70 23 62 14 1 0 0 100 53 47 0 0 0 0 100 6683 12 None 0 0 47 0 53 0 0 0 0 0 100 0 3 0 2 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 1 100000 1 3 400111001 1600 Aloha Pl. Oceano,Ca 93445 WWTP other agency Y N Sunrise Terrace MHP n/a N Bolsa Chica MHP n/a N Grandmothers MHP n/a 5 0 1 N Y Root Intrusion Gravity Mainline none none 2025 3SSO10255 3 616 13-MAR-26 Municipal(Public) 18000 1 1 1 1 0 0 0 0 0 0 1.2 70 23 62 14 1 0 0 100 53 47 0 0 0 0 100 6683 12 None 0 0 47 0 53 0 0 0 0 0 100 0 3 0 1 0 0 0 0 0 4 0 0 0 1 0 0 0 0 0 1 1 60000 0 3 400111001 310.31 Oceano HSA, , CA WWTP other agency Y N Sunrise Terrace MHP n/a N Bolsa Chica MHP n/a N Grandmothers MHP n/a 5 0 1 N Y Root Intrusion Gravity Mainline none none 2023 4SSO10373 4 616 27-MAR-24 Municipal(Public) 107000 3 4 2 1 2 1 0 1 0 0 N/A 3 226 1 79 15 4 1 0 100 0 8 0 92 0 0 100 25500 0 None 0 1 1 1 87 9 1 0 0 0 100 0 0 0 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 5 325 28 4B190101001 002, near Burbank Boulevard, Burbank, CA (BWRP) WWTP same agency 4B190106002 001, , CA (LA Hyperion WRP) WWTP other agency Y N City of Los Angeles 4SSO10502 N City of Glendale 4SSO10388 N/A 12 0 3 N Y Other (specify below) Root intrusion and grease Gravity Mainline N/A N/A City Consultant is preparing SSMP Update. 2024 4SSO10373 4 616 27-MAR-25 Municipal(Public) 103000 4 4 2 1 3 0 1 0 0 0 N/A 3 226 1 79 15 4 1 0 100 0 8 0 92 0 0 100 25500 0 None 0 1 1 1 87 9 1 0 0 0 100 0 0 0 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 5 400 37 4B190101001 002, near Burbank Boulevard, Burbank, CA (BWRP) WWTP same agency 4B190106002 001, , CA (LA Hyperion WRP) WWTP other agency Y N City of Los Angeles 4SSO10502 N City of Glendale 4SSO10308 N/A 12 0 3 N Y Other (specify below) Root intrusion and grease Gravity Mainline N/A N/A City Consultant is preparing SSMP Update. 2025 4SSO10373 4 616 20-MAR-26 Municipal(Public) 103000 5 3 2 1 3 0 1 0 0 0 N/A 3 226 1 79 15 4 1 0 100 0 8 0 92 0 0 100 25500 0 None 0 1 1 1 87 1 1 0 0 8 100 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 5 440 36 4B190101001 002, near Burbank Boulevard, Burbank, CA (BWRP) WWTP same agency 4B190106002 001, , CA (LA Hyperion WRP) WWTP other agency Y N City of Los Angeles 4SSO10502 N City of Glendale 4SSO10308 N/A 12 0 3 N Y Other (specify below) Root intrusion and grease Gravity Mainline N/A N/A SSMP updated in April 2025 2023 9SSO10647 9 616 01-APR-25 Municipal(Public) 20192 2 15 2 3 2 2 1 3 0 0 NA 8 45 36 36 17 6 0 5 100 10 15 68 7 0 0 100 11204 40 Upper and Lower .3 0 2 3 25 30 25 10 5 0 100 0 1 1 1 0 0 0 0 0 3 0 5 4 4 0 0 0 0 0 13 1 43.4 4.1 9 000000275 Point Loma WWTP other agency Y N Navy (NASNI, NAB, Coastal Campus) 9 000000495 na 0 1 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Roots Operator error- diverter pump left on Debris from lateral Pipe structural defect Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Gravity mainline No CIP, consulting 2024 9SSO10647 9 616 01-APR-25 Municipal(Public) 20192 2 12 4 3 2 3 1 2 0 0 NA 8 45 36 36 17 6 0 5 100 10 15 68 7 0 0 100 11204 40 Upper and Lower .3 0 2 3 25 30 25 10 5 0 100 0 1 1 1 0 0 0 0 0 3 0 5 4 4 0 0 0 0 0 13 1 34.8 1.7 9 000000275 Point Loma WWTP other agency Y N Navy (NASNI, NAB, Coastal Campus) 9 000000495 na 0 1 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Debris lateral Debris general Roots Pipe defects Pump station control failure (under contractor control) Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Gravity mainline lower lateral Pump station control (under contractor control) no CIP/consultants 2025 9SSO10647 9 616 01-APR-26 Municipal(Public) 20192 2 8 3 4 3 3 1 2 0 1 N/A 8 45 36 36 17 6 0 5 100 10 15 68 7 0 0 100 11204 40 Upper and Lower 0 2 2 1 25 30 25 10 5 0 100 0 1 1 1 0 0 0 0 0 3 0 5 4 4 0 0 0 0 0 13 1 54 7 9 000000275 Point Loma WWTP other agency Y N Navy (NASNI, NAB, Coastal Campus) 9 000000495 N/A 0 1 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Contractor error Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Gravity mainline lower lateral Pump station control (under contractor control) No CIP/consultants/ training/staff hiring 2023 3SSO10256 3 616 31-MAR-24 Municipal(Public) 1400 1 10 1 2 0 0 0 0 0 0 California's Wastewater Operator Certification Program Grade I: 1; Grade II: 3; Grade III: 3; Grade IV: 4 5 10 100 0 0 0 0 0 100 0 0 0 0 0 0 0 439 0 None 0 0 1 53 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 6 3SSO10256 Country Club Estates CS, , San Luis Obispo, CA 93408 SSS same agency 3 401039001 Country Club WWTP WWTP other agency N N NA NA NA 0 0 0 Y Y Other (specify below) NA, no spills in 2023 Other (specify below) NA NA NA 2024 3SSO10256 3 616 09-APR-25 Municipal(Public) 1500 4 7 4 1 2 1 0 0 0 2 NA 2 10 90 10 0 0 0 0 100 100 0 0 0 0 0 100 480 0 None 0 9 1 48 42 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 3SSO10256 Country Club Estates CS, , San Luis Obispo, CA 93408 SSS same agency 3 401039001 Country Club WWTP WWTP same agency N N NA NA NA 0 0 0 Y Y Other (specify below) NA, No spills in 2024 Other (specify below) NA NA NA 2025 3SSO10256 3 616 30-MAR-26 Municipal(Public) 1500 1 7 2 2 1 1 4 2 0 0 NA 2 10 90 10 0 0 0 0 100 100 0 0 0 0 0 100 480 0 None 0 9 1 48 42 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 .1 3SSO10256 Country Club Estates CS SSS same agency 3 401039001 Country Club WWTP, 1045 Graystone Place, San Luis Obispo, CA 93401 WWTP same agency N N NA NA NA 0 0 0 Y Y Other (specify below) NA, No spills in 2025 Other (specify below) NA NA NA 2023 4SSO10374 4 616 28-MAR-24 Municipal(Public) 92388 2 18 3 1 0 1 0 0 0 0 1 181 0 86 13 1 0 0 100 32 0 68 0 0 0 100 23104 0 None 0 0 2 1 57 40 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 18 1 4SSO11392 County Sanitation District No. 8 CS, , Whittier, CA WWTP other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 11 Y Y Vandalism (specify below) A variety of different household items were dumped into manhole. Gravity Mainline None The recommendation is to schedule bricklayer to change Manhole No. 446 rim and top to composite so that it can be locked to prevent future vandalism. Will also continue to inspect Manhole No. 446 twice annually. 2024 4SSO10374 4 616 20-MAR-25 Municipal(Public) 95548 4 15 3 1 1 1 0 0 1 0 N/A .3 181.8 0 86 13 1 0 0 100 32 0 68 0 0 0 100 23104 0 None 0 0 2 1 57 40 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 38.7 0 4SSO11392 County Sanitation District No. 8 CS, , Whittier, CA WWTP other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 11 Y Y Debris-wipes/Non-disposables Debris- Rags, Debris - General, Fats, Oil and Grease Gravity Mainline Inspected the sewer using CCTV and found medium levels of grease. It is recommended to create a 90-day hydro PM for Pacific St. from T/L to MH 36, and another 90- day Hydro PM for T/L to MH 64. 2025 4SSO10374 4 616 16-MAR-26 Municipal(Public) 91358 5 17 3 1 1 1 2 1 0 0 0 .3 182.1 0 86 13 1 0 0 100 32 0 68 0 0 0 100 23104 0 None 0 0 2 1 57 40 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 40.9 .2 4B190107013 Joint Water Pollution Control Plant (A.K. Warrn Water Resource Facility) 24501 S Figueroa St, Carson, CA 90745 WWTP other agency N 3 0 11 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Mainline will be televised to determine if further actions are needed. Mainline will be televised to determine if further actions are needed. 2024 9SSO10646 9 616 12-AUG-25 Municipal(Public) 281659 5 37 6 1 1 3 0 1 0 0 CWEA 3.3 518 1 81 14 2 2 0 100 93 0 7 0 0 0 100 51411 0 Lower only 10 4 21 32 26 17 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 2 1 0 0 0 0 0 0 1 533 114 9 000000275 001, , CA WWTP other agency N 20 0 3 Y Y Debris from Construction The last 2 spills were a result of contractor erro Manhole n/a CIP Projects, Aggressive cleaning and maintenance, OERP is now included on every contract. 2025 9SSO10646 9 616 16-JAN-26 Municipal(Public) 278546 4 40 3 1 3 5 0 1 0 0 CWEA Collection System Maintenance Certification 3.5 530 1 79 15 3 2 0 100 97 3 0 0 0 0 100 51593 0 None 11 7 21 32 26 14 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 8 0 0 0 0 0 0 0 11 1.2 535.7 103 9 000000275 City of San Diego, PT Loma WWTP WWTP other agency N 20 0 3 Y Y Root Intrusion 1 spill in last 13 months Manhole None CIP for Manhole rehabilitation, monthly cleaning and maintenance for high priority locations, OERP now included on every contract, 2023 3SSO10257 3 616 21-APR-25 Municipal(Public) 158 0 3 2 1 0 0 3 1 0 0 .8 1.5 0 100 0 0 0 0 100 0 0 0 0 0 0 0 66 0 None 0 0 1 53 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 0 0 3 400104001 509 Southland St. Nipomo, CA WWTP other agency N 0 0 0 N Y Other (specify below) none Other (specify below) none none none 2024 3SSO10257 3 616 19-FEB-26 Municipal(Public) 1160 0 6 2 1 1 1 4 2 0 0 .8 1.5 0 100 0 0 0 0 100 0 0 0 0 0 0 0 66 0 None 0 0 1 53 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 0 0 3 400104001 310.32 Nipomo Mesa HSA, , CA WWTP other agency N 0 0 0 N Y Other (specify below) none Other (specify below) none none none 2025 3SSO10257 3 616 19-FEB-26 Municipal(Public) 1160 0 6 2 1 1 1 4 2 0 0 .8 1.5 0 100 0 0 0 0 100 0 0 0 0 0 0 0 66 0 None 0 0 1 53 46 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 0 0 3 400104001 310.32 Nipomo Mesa HSA, , CA WWTP other agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None None 2025 9SSO10645 9 616 25-MAR-26 School 15000 0 3 1 1 0 0 0 0 0 0 0 0 2 24 57 19 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 5 85 10 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 9SSO10676 700 S. Rancho Sante Fe Road, South Rancho Santa Fe Road, San Marcos, CA 92069 SSS other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 N Y Other (specify below) 0 Other (specify below) 0 0 0 2023 4SSO10375 4 616 02-APR-24 Municipal(Public) 49578 0 4 1 1 0 0 0 0 0 0 The City of Cerritos contracts its sewer maintenance to Empire Pipe Cleaning (Empire). Empire hold the necessary certifications to operate and maintain the City's sanitary sewer system. 0 110 70 10 10 0 0 0 100 0 0 0 0 0 0 0 16000 23 None 1 0 1 14 85 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 0 0 55 3 4191007149 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave., Cerritos, CA 90703 SSS other agency 419W002365 Long Beach Water Reclamation Plant, 7400 E. Willow Ave., Long Beach, CA 90815 SSS other agency N 0 0 11 Y Root Intrusion Gravity Mainline The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. 2024 4SSO10375 4 616 31-MAR-26 Municipal(Public) 49578 0 0 1 1 0 0 0 0 0 0 The City of Cerritos contracts its sewer maintenance to Empire Pipe Cleaning (Empire). Empire hold the necessary certifications to operate and maintain the City's sanitary sewer system. 0 110 70 10 10 0 0 0 100 0 0 0 0 0 0 0 16000 23 None 1 0 1 14 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 6 0 55 0 4191007149 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave., Cerritos, CA 90703 SSS other agency 419W002365 Long Beach Water Reclamation Plant, 7400 E. Willow Ave., Long Beach, CA 90815 SSS other agency N 0 0 11 Y Root Intrusion Gravity Mainline The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. 2025 4SSO10375 4 616 31-MAR-26 Municipal(Public) 49578 0 0 1 1 0 0 0 0 0 0 The City of Cerritos contracts its sewer maintenance to Empire Pipe Cleaning (Empire). Empire hold the necessary certifications to operate and maintain the City's sanitary sewer system. 0 110 70 10 10 0 0 0 10 0 0 0 0 0 0 0 16000 23 None 1 0 1 14 85 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 0 0 55 0 4191007149 Los Coyotes Water Reclamation Plant, 16515 Piuma Ave., Cerritos, CA 90703 SSS other agency 419W002365 Long Beach Water Reclamation Plant, 7400 E. Willow Ave., Long Beach, CA 90815 SSS other agency N 0 0 11 Y Debris from Construction Gravity Mainline The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. The City's practice is to video any sewer line that has experienced low performance and address the issue as appropriate. 2025 9SSO10644 9 616 10-MAR-26 Municipal(Public) 18000 0 8 1 1 3 2 1 1 0 0 20 66 100 0 0 0 0 0 100 20 80 0 0 0 0 100 8200 0 None 0 0 95 5 0 0 0 0 0 0 100 0 4 0 0 0 0 0 0 0 4 0 9 1 0 0 0 0 0 0 10 0 22 22 9 000000371 4S WRF 16595 Dove Canyon Road, San Diego, CA 92127 SSS same agency N 1 3 0 Y Y Pipe Structural Problem/Failure - Installation Force Main No ongoing investigations. The force main was repaired/replaced and re-routed. 2023 4SSO10376 4 616 21-MAR-24 Municipal(Public) 37266 1 1 1 2 0 0 0 0 0 0 0 117 5 80 10 0 0 5 100 0 0 0 0 0 0 0 8115 0 None 0 0 2 8 17 47 24 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 Unknown Los Angeles County SSS other agency N Y Montclair - Oakdale Unknown Y Upland - Blancard / Huntington Unknown Y Pomona - Live Oak Drive Unknown Y Pomona - Towne Park Center Unknown Y Upland - College Park Unknown 0 0 0 Y Y Debris-General Gravity Mainline None at this time; however, investigations are completed after each SSO. Comprehensive sewer system cleaning, CCTV inspection, and condition assessment will begin in Fiscal Year 2024-25. Condition assessment will be utilized to develop e a 5-year Capital Improvement Project to address any identified issues. The City will also enhance its FOG outreach program in 2024-25. 2024 4SSO10376 4 616 05-MAY-26 Municipal(Public) 36139 1 1 2 2 0 0 0 0 0 0 0 117 5 80 10 0 0 5 100 0 0 0 0 0 0 0 8115 0 None 0 0 2 8 17 47 24 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 Unknown Los Angeles County SSS other agency N Y Montclair - Oakdale Unknown Y Upland - Blanchard / Huntington Unknown Y Pomona - Live Oak Drive Unknown Y Pomona - Towne Park Center Unknown Y Upland - College Park Unknown 0 0 0 Y Y Debris-General Gravity Mainline None Comprehensive sewer system cleaning began in 2024-25. CCTV inspection, and condition assessment in process. Results will be used to develop a 5-year plan. 2025 4SSO10376 4 616 05-MAY-26 Municipal(Public) 34640 1 1 2 0 0 0 0 0 0 0 n/a 0 120 5 80 10 0 0 5 120 0 0 0 0 0 0 0 8115 0 None 0 0 2 8 17 47 24 2 0 20 120 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 Unknown Algalita Marine Research, , CA SSS other agency N Y Montclair - Oakdale Unknown Y Upland - Blanchard / Huntington Unknown Y Pomona - Live Oak Drive Unknown Y Pomona - Towne Park Center Unknown Y Upland - College Park Unknown 0 0 0 Y Y Debris from Construction Gravity Mainline None The City is currently conducting a City-wide sewer assessment 2023 8SSO10643 8 616 26-DEC-25 Municipal(Public) 51900 0 15 6 2 15 6 1 6 0 1 NA 6 228 5 85 5 2 0 3 100 13 13 44 7 0 23 100 15157 0 None 0 10 10 70 10 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 1 4 0 0 0 0 0 0 5 0 477000 163935 8SSO10643 WRWRF 880 W County Line Rd. Yucaipa, CA 92399 WWTP same agency N NA 15 0 0 Y Debris-wipes/Non-disposables NA Other (specify below) Gravity Main - Roots, Gravity Main - Contractor Obstructions, Trench Failure - Storm Issue, Pump Stations - Non - flushable Wipes None Roots - Mains were added to the root foaming list, Contractor Obstruction - Pipe line replacement, Trench Failure - Relocated Sewer Main, Non - Flushable Wipes - Installed grinder pumps. 2024 8SSO10643 8 616 21-JAN-26 Municipal(Public) 51900 0 15 6 2 15 6 1 6 0 1 N/A 6 228 5 85 5 2 0 3 100 13 13 44 7 0 23 100 15157 0 None 0 10 10 70 10 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 1 4 0 0 0 0 0 0 5 0 91 32 8 362222001 Henry N. Wochholz WWRF 880 W County Line Ln. Yuciapa, CA 92399 WWTP same agency N N/A 15 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2025 8SSO10643 8 616 26-MAR-26 Municipal(Public) 52202 0 15 6 2 15 6 1 6 0 1 6 228 5 85 5 2 0 3 100 13 13 44 7 0 23 100 15374 0 None 0 10 10 70 10 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 1 4 0 0 0 0 0 0 5 .2 46.3 29.5 8 362222001 WRWRF 880 W County Line Rd., Yucaipa , CA 92399 WWTP same agency N N/A 15 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A N/A 2023 3SSO10259 3 616 22-APR-25 Municipal(Public) 150 0 3 2 1 0 0 3 1 0 0 0 .8 20 80 0 0 0 0 100 0 0 0 0 0 0 0 17 0 Lower only .2 75 0 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 3 400108001 CMC WWTP WWTP other agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole None. Single resolved SSO 11/20/2023. None 2024 3SSO10259 3 616 14-OCT-25 Municipal(Public) 150 0 3 2 1 0 0 3 1 0 0 0 .8 20 80 0 0 0 0 100 0 0 0 0 0 0 0 17 0 Lower only .2 75 0 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 400108001 CMC WWTP WWTP other agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole none none 2025 3SSO10259 3 616 20-MAR-26 Municipal(Public) 250 0 3 2 1 1 1 0 0 0 0 All operators are certified Wastewater Operators by the SWRCB 0 .8 20 80 0 0 0 0 100 0 0 0 0 0 0 0 17 0 Lower only .2 75 0 0 25 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .8 0 3 400108001 CMC WWTP WWTP other agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Manhole None None 2023 4SSO10377 4 616 02-APR-24 Municipal(Public) 12363 6 26 3 1 1 1 1 0 0 0 n/a 0 50 0 75 24 1 0 0 100 0 0 0 0 0 0 0 3736 0 None 0 0 9 10 2 52 27 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 1 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) RAGS Gravity Mainline None None 2024 4SSO10377 4 616 02-APR-25 Municipal(Public) 11672 2 27 3 1 1 2 1 0 0 0 0 49.7 0 75 24 1 0 0 100 0 0 0 0 0 0 0 3736 0 None 0 0 9 10 2 52 27 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.5 .1 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) NO SSO 2024 Other (specify below) NO SSO 2024 NO SSO 2024 NO SSO 2024 2025 4SSO10377 4 616 02-MAR-26 Municipal(Public) 12378 2 19 2 1 0 0 1 0 0 0 0 0 49.7 1 75 25 0 0 0 100 0 0 0 0 0 0 0 3736 0 None 0 0 9 10 2 52 27 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.3 0 4B190107013 001, , CA WWTP other agency N 0 0 0 Y Y Other (specify below) NO SSO 2025 Other (specify below) NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 8SSO10568 8 616 02-APR-24 Municipal(Public) 35000 3 4 1 1 3 1 0 3 0 0 NA 3 8 0 4 17 79 0 0 100 0 0 0 2 98 0 100 0 0 None 0 0 14 61 0 0 0 0 0 25 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 7 0 8 332353001 WRCRWA WTP, 14634 River Corona, CA, 92880-8935 WWTP same agency Y Y Western Municipal Water District 8SSO10637 N Home Gardens Sanitary District 8SSO10577 N City of Norco Collection System 8SSO10556 N City of Corona Collection System 8SSO10565 N Jurupa Community Services District 8SSO10582 NA 0 1 6 Y Y Other (specify below) NA - no spills in 2023 Other (specify below) NA - no spills in 2023 NA - no spills in 2023 NA 2024 8SSO10568 8 616 27-MAR-25 Municipal(Public) 35000 2 4 1 1 1 2 1 2 0 1 NA 2.6 7.8 0 4 17 79 0 0 100 0 0 0 2 98 0 100 0 0 None 0 0 14 61 0 0 0 0 0 25 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 7.4 0 8 332353001 WRCRWA WTP, 14634 River Corona, CA, 92880-8935 WWTP same agency Y Y Western Municipal Water District 8SSO10637 N Home Gardens Sanitary District 8SSO10577 N City of Norco Collection System 8SSO10556 N City of Corona Collection System 8SSO10565 N Jurupa Community Services District 8SSO10582 NA 4 2 5 Y Y Other (specify below) NA - No spills occurred in 2024 Other (specify below) NA - No spills occurred in 2024 No NA 2025 8SSO10568 8 616 01-APR-26 Municipal(Public) 146430 1 5 2 1 2 1 1 1 0 1 NA 2.6 7.8 0 4 17 79 0 0 100 0 0 2 98 0 0 100 0 0 None 0 0 14 61 0 0 0 0 0 25 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 8 332353001 WRCRWA WTP, 14634 River Rd. Eastvale, CA 92880 WWTP same agency Y N Home Gardens Sanitary District 8SSO10577 N City of Norco Collection System 8SSO10556 N City of Corona Collection System 8SSO10565 N Jurupa Community Services District 8SSO10582 Y Western Municipal Water District 8SSO10637 NA 4 2 5 Y Y Other (specify below) No spills in 2025 Other (specify below) No spills in 2025 No NA 2023 3SSO10260 3 616 29-MAR-24 Municipal(Public) 2520 0 9 1 2 0 0 0 0 0 0 N/A 1 13 27 72 1 0 0 0 100 100 0 0 0 0 0 100 863 0 None 0 0 4 96 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 7 3 3SSO10265 El Estero CS, P.O. Box 1990 , Santa Barbara, CA 93102 WWTP same agency N 1 1 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Repair and replacement of gravity mainlines as necessary 2024 3SSO10260 3 616 27-DEC-25 Municipal(Public) 2520 0 9 1 2 0 0 0 0 0 0 N/A 1 13 27 72 1 0 0 0 100 100 0 0 0 0 0 100 863 0 None 0 0 4 96 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 7 3 3 420108005 El Estero CS, P.O. Box 1990 , Santa Barbara, CA 93102 WWTP other agency N 1 1 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Repair and replacement of gravity mainlines as necessary 2025 3SSO10260 3 616 13-MAR-26 Municipal(Public) 2520 0 9 1 2 0 0 0 0 0 0 N/A 1 13 27 72 1 0 0 0 100 100 0 0 0 0 0 100 886 0 None 0 0 4 96 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 3 0 3 420108005 El Estero CS, P.O. Box 1990 , Santa Barbara, CA 93102 WWTP other agency N 1 1 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Repair and replacement of gravity mainlines as necessary 2023 4SSO10378 4 616 28-MAR-24 Municipal(Public) 90000 5 24 2 4 0 0 0 0 0 1 No 0 147 15 65 15 5 0 0 100 0 0 0 0 0 0 0 20000 3800 Upper and Lower 7 5 5 10 30 15 15 10 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 12 1 4SSO10378 1400 Block of South Temple Ave., 1400 South Temple Avenue, Compton, CA 90221 SSS other agency N N LACSD no N LACSD no N 0 0 N 0 0 N 0 0 NO 0 0 0 N N Collection System Maintenance Failure (specify below) Sanitary sewer system aging, that results in pipes breaking, and associated spills. Additionally, root intrusion and grease deposition are other major spill causes. Gravity Mainline Sewer laterals also are failing on certain locations. Due to the lack of the available funds, the City can't maintain the system efficiently, which results in its failure. We are in the process of updating the existing Spill Emergency Response Plan, and it will include any spill incidents and their causes. As stated previously, we are in the process of updating the existing Spill Emergency Response Plan, and it will include any spill incidents and their causes. We have just completed a capital improvement project that was considered as an emergency project to respond to street sink holes. We are in the design phase for other two CIPs that are needed to improve system hydraulic performance as well as structural deficiencies. Further, we are working on updating our sewer master plan that will include the actual analysis of the system hydraulic performance. The City has a lack of funds to maintain and optimize its system0. 2023 3SSO10261 3 616 21-MAR-24 School 6500 1 1 1 1 0 0 0 0 0 0 None 0 2 0 75 25 0 0 0 100 0 0 0 0 0 0 100 30 30 Upper and Lower 1 10 0 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Unknown CMC Wastewater Treatment Plant WWTP other agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Continual monitoring and cleaning. 2025 3SSO10261 3 616 16-JUN-26 School 6500 1 1 1 1 0 0 0 0 0 0 None 0 2 0 75 25 0 0 0 100 0 0 0 0 0 0 0 30 30 Upper and Lower 1 10 0 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 400108001 California Men's Colony WWTP, Hwy 1 N SLO behind Cuesta College , San Luis Obispo, CA 93405 SSS other agency N 1 0 0 Y Y Root Intrusion Gravity Mainline None Cuesta College continues to monitor areas of concern with frequent visits to manholes throughout campus on a regular basis. We use cameras to video and jet lines when needed. College has made repairs to gravity mainline to address root intrusion and failure points in clay pipe on campus. 2023 4SSO10379 4 616 28-MAR-24 Municipal(Public) 48876 2 2 1 1 2 0 1 0 0 0 N/A 1 121 1 88 10 1 0 0 100 0 100 0 0 0 0 100 123 20 None 5 0 3 5 45 45 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 240 45 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 SSS other agency N N/A 0 0 2 N Y Root Intrusion FOG & Root Intrusion. Other (specify below) Lift Station. None. Manhole Channel Resurfacing. 2024 4SSO10379 4 616 20-NOV-25 Municipal(Public) 48764 2 2 1 1 2 0 1 0 0 0 N/A 1 121 1 88 10 1 0 0 100 0 100 0 0 0 0 100 123 20 None 5 0 3 5 45 45 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 240 45 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 SSS other agency N N/A 0 0 2 N Y Root Intrusion FOG & Root Intrusion Other (specify below) Lift Station. None. Manhole Channel Resurfacing 2025 4SSO10379 4 616 16-MAR-26 Municipal(Public) 48764 2 2 1 1 0 1 0 1 0 0 N/A 1 121 1 88 10 1 0 0 100 100 0 0 0 0 0 100 123 20 Upper and Lower 5 0 3 5 45 45 2 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 425 121.5 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 SSS other agency N N/A 0 0 2 Y Y Root Intrusion Force Main Force Main, Pump Station None Manhole Channel Resurfacing, Pipe Replacements. 2024 3SSO10262 3 616 30-DEC-25 Municipal(Public) 700 0 2 0 0 0 0 0 0 0 0 5 5 0 100 0 0 0 0 100 0 0 0 0 0 0 0 215 215 Lower only 5 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 3 421003001 CCSD WWTP, 5033 Highway 166, New Cuyama, CA 93254 WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None None 2023 4SSO10380 4 616 28-MAR-24 Municipal(Public) 26029 5 28 3 1 6 1 1 0 0 0 0 15 0 95 5 0 0 0 100 0 0 0 0 0 0 0 1688 0 None 0 0 0 0 0 1 99 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4SSO11387 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 1 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10380 4 616 20-JAN-26 Municipal(Public) 22811 2 27 3 1 1 2 1 0 0 0 0 14.1 0 96 4 0 0 0 100 0 0 0 0 0 0 0 1688 0 None 0 0 0 0 0 1 99 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9.5 0 4B190107013 AK Warren Water Resource Facility, 24501 Figueroa St, Carson, Ca 90745 WWTP other agency SSS other agency N 0 0 1 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10380 4 616 23-MAR-26 Municipal(Public) 22132 0 19 2 1 0 0 1 0 0 0 0 0 14.1 0 96 4 0 0 0 100 0 0 0 0 0 0 0 1688 0 None 0 0 0 0 0 1 99 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7.4 0 4B190107013 Joint Water Pollution Control Plant (A.K. Warren Water Resource Facility), 24501 S Figueroa St, Carson, CA 90745 WWTP other agency N 0 0 1 Y Y Other (specify below) NO SSO 2025 Other (specify below) NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 3SSO10263 3 616 19-MAR-24 Municipal(Public) 215 10 30 6 2 22 1 0 2 0 1 1 3 79 21 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 25 75 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 0 0 3sso10263 Davenport WWTP same agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None None 2024 3SSO10263 3 616 01-APR-25 Municipal(Public) 215 9 29 6 2 15 0 0 2 0 1 1 2 79 21 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 25 75 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 0 0 3sso10263 Davenport WWTP same agency N 0 0 0 Y Y Other (specify below) None Other (specify below) None None None 2025 3SSO10263 3 616 20-MAR-26 Municipal(Public) 215 10 32 6 2 9 1 0 2 0 1 NA 1 2 79 21 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 25 75 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 2.2 0 3 440108002 Davenport WWTP, 700 Cement Plant Road, Davenport, CA 95017 WWTP same agency N NA 0 0 0 Y Y Other (specify below) There were no spills in CY 2025 Other (specify below) There were no spills in CY 2025 None Each year we analyze the system improvements needed for the collection system 2023 4SSO10381 4 616 20-MAR-24 Municipal(Public) 40779 0 3 1 2 1 0 2 0 0 1 N/A 4 87 5 74 21 0 0 0 100 2 1 97 0 0 0 100 13568 38 Upper and Lower 1 2 6 10 14 29 35 0 0 4 100 1 0 1 2 1 0 0 0 0 5 0 0 0 1 0 0 0 0 0 1 4 42 0 4SSO10450 Hyperion Wastewater Treatment Plant WWTP other agency Y N Los Angeles City Bureau of Sanitation 4SSO10502 N/A 3 0 3 Y Y Root Intrusion N/A Gravity Mainline N/A No Added sewer to preventive maintenance program. Increase the frequency of maintenance, line inspections, and root control treatments. Install the smartcover device(s) 2024 4SSO10381 4 616 09-JUL-25 Municipal(Public) 39041 0 3 1 2 0 0 2 1 0 0 N/A 4 87 5 74 21 0 0 0 100 2 1 97 0 0 0 100 13568 38 Upper and Lower .4 2 6 10 14 5 35 0 0 4 100 1 0 1 2 1 0 0 0 0 5 0 0 0 1 0 0 0 0 0 1 4 32 0 4B190106002 Hyperion Wastewater Treatment Plant, 12000 Vista del Mar, Playa Del Rey, CA, 90293 WWTP other agency Y N Los Angeles City Bureau of Sanitation 4SSO10502 N/A 3 0 3 Y Y Debris-wipes/Non-disposables N/A Gravity Mainline N/A No Added sewer to preventive maintenance program. Increase the frequency of line inspections and public outreach to remind residents not to flush any wipes into the sewer system. Install smartcover device(s) 2025 4SSO10381 4 616 24-MAR-26 Municipal(Public) 39464 3 3 1 2 0 0 1 2 0 0 N/A 3 87 5 74 21 0 0 0 100 2 1 97 0 0 0 100 13568 38 Upper and Lower .4 2 6 10 14 5 35 0 0 4 100 1 0 1 1 1 0 0 0 0 4 0 0 0 1 0 0 0 0 0 1 3 35.1 45 4B190106002 Hyperion Wastewater Treatment Plant, 12000 Vista del Mar, Playa Del Rey, CA 90293 WWTP other agency Y N Los Angeles City Bureau of Sanitation 4SSO10502 N/A 3 0 3 Y Y Root Intrusion N/A Gravity Mainline N/A No Increase the frequency of line maintenance and inspections and implement more root control measures. Install smart cover devices and utilize the camera truck to help accurately identify problems and precisely locations. 2023 4SSO10382 4 616 02-APR-24 Municipal(Public) 61019 5 28 2 1 6 1 1 0 0 0 5 154 0 89 9 2 0 0 100 47 10 32 11 0 0 100 17898 0 None 0 3 0 26 69 2 0 0 0 0 100 0 0 3 3 0 0 0 0 0 6 1 0 2 0 0 0 0 0 0 3 0 1 0 4SSO11400 County Sanitation District No. 2 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) Pool Plaster Gravity Mainline None Will inspect sewer using CCTV to determine if further action 2024 4SSO10382 4 616 30-DEC-25 Municipal(Public) 61019 2 25 2 1 5 0 1 0 0 0 none 4.5 154.4 0 90 9 1 0 0 100 47 9 33 11 0 0 100 17898 0 None 0 3 0 26 69 2 0 0 0 0 100 0 0 3 3 0 0 0 0 0 6 1 0 2 0 0 0 0 0 0 3 0 17 .5 4B190107019 Pomona WRP LA County Sanitation District WWTP other agency N 0 0 0 Y Y Root Intrusion Root Intrusion Gravity Mainline The mainline was placed on a 90-day Rodder Periodic. Grand Ave from MH 150 to MH 147, PM No. S10E0445 Added Sewer to Preventive Maintenance Program, Inspected Sewer using CCTV to determine cause. 2025 4SSO10382 4 616 01-APR-26 Municipal(Public) 61019 26 4 2 1 2 2 0 0 0 0 0 4.5 154.5 0 90 9 1 0 0 100 47 9 33 11 0 0 100 17898 0 None 0 3 0 26 69 2 0 0 0 0 100 0 0 3 3 0 0 0 0 0 6 1 0 2 0 0 0 0 0 0 3 0 18 .1 4B190107019 Pomona Water Reclamation Plant WWTP other agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Will inspect mainline via cctv to determine if further action is required. Will inspect mainline via cctv to determine if further action is required. 2023 4SSO10383 4 616 14-APR-24 Municipal(Public) 111261 2 2 1 1 1 1 0 1 0 0 NA 1 193 1 93 5 1 0 0 100 100 0 0 0 0 0 100 22500 41 None .8 0 1 1 12 83 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 120 18 NA LA County Sanitation Districts SSS other agency N NA NA 0 0 2 Y Y Debris-wipes/Non-disposables NA Manhole NA None Modify frequency of cleaning and maintenance within the sewer preventative maintenance program 2024 4SSO10383 4 616 03-APR-25 Municipal(Public) 111493 2 2 1 1 1 3 0 1 0 0 N/A 1 193 1 93 5 1 0 0 100 100 0 0 0 0 0 100 22500 41 None .8 0 1 1 12 83 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 55.8 1.7 N/A LA County Sanitation District SSS other agency N N/A N/A 0 0 6 Y Y Other (specify below) N/A Other (specify below) N/A None Modify frequency of cleaning and maintenance within the sewer preventative maintenance program. 2023 8SSO10637 8 616 02-APR-24 Municipal(Public) 15000 3 4 1 1 3 1 0 3 0 0 NA 21 118 3 70 24 3 0 0 100 24 27 49 0 0 0 100 6481 20 Upper and Lower 2 3 50 41 0 0 0 0 0 6 100 0 2 1 0 0 0 0 0 0 3 0 2 7 0 0 0 0 0 0 9 0 93 21 8 330700001 Western Water Recycling Facility 5903 Avenue A March Air Reserve Base, CA, 92518 Riverside WWTP same agency 8 332353001 WRCRWA, 14634 River Road, Corona, CA 92880 WWTP same agency 8SSO10617 23650 Hemlock Ave., Moreno Valley, 23650 Hemlock Avenue, Moreno Valley, CA 92557 SSS other agency 8SSO10603 SAWPA & Member Agencies CS, 11615 Sterling Avenue, Riverside, CA 92503 SSS other agency N NA 0 0 0 Y Y Root Intrusion NA Gravity Mainline NA NA NA 2024 8SSO10637 8 616 27-MAR-25 Municipal(Public) 15000 2 4 1 1 1 2 1 2 0 1 NA 20.6 127.2 3 71 24 2 0 0 100 25 27 48 0 0 0 100 6990 20 Upper and Lower 2 9 48 38 0 0 0 0 0 5 100 0 2 1 0 0 0 0 0 0 3 0 2 7 0 0 0 0 0 0 9 0 93.1 10.3 8 330700001 Western Water Recycling Facility 5903 Avenue A March Air Reserve Base, CA, 92518 Riverside WWTP same agency 8 332353001 WRCRWA, 14634 River Road, Corona, CA 92880 SSS same agency 8 332783001 EMWD, Moreno Valley RWRF, 17140 Kitching St., Moreno Valley, CA 92553 SSS other agency N 0 0 0 Y Y Other (specify below) NA - no spills occurred in 2024 Other (specify below) NA - no spills occurred in 2024 No NA 2025 8SSO10637 8 616 01-APR-26 Municipal(Public) 20399 1 5 2 1 2 1 1 1 0 1 NA 21.4 135.6 3 71 23 3 0 0 100 24 26 49 0 0 0 100 7456 20 Lower only 2 96 45 36 0 0 0 0 0 10 100 0 2 1 0 0 0 0 0 0 3 0 2 7 0 0 0 0 0 0 9 0 98.7 19.7 9 330700001 Western Water Recycling Facility 5903 Avenue A March Air Reserve Base, CA, 92518 Riverside WWTP same agency 9 332353001 WRCRWA, 14634 River Road, Eastvale, CA 92880 SSS other agency 9 332783001 EMWD, Moreno Valley RWRF, 17140 Kitching St., Moreno Valley, CA 92554 SSS other agency N N NA 0 N NA 0 N NA 0 N NA 0 N NA 0 NA 0 0 0 Y Y Pipe Structural Problem/Failure - Installation NA Force Main NA No CIP project in progress 2023 3SSO10265 3 616 06-NOV-25 Municipal(Public) 95000 7 14 2 1 6 9 1 4 0 0 NA 2 255 37 49 12 1 1 0 100 0 0 0 0 0 0 100 25529 0 None 0 0 0 19 21 31 20 9 0 0 100 0 0 19 21 31 20 9 0 0 100 0 0 19 21 31 20 9 0 0 100 0 226 50 3 420108001 001, , CA WWTP same agency Y N Montecito Sanitary District 3SSO10291 N Santa Barbara County 3SSO10260 NA 172 2 21 Y Y Other (specify below) Rain events. Gravity Mainline NA NA Rehabilitation of sewer mains and MHs SmartCovers to monitor sewer system I&I study Smoke test I&I basins Capacity Study 2024 3SSO10265 3 616 06-NOV-25 Municipal(Public) 85744 1 21 3 1 9 9 3 6 0 0 ITCP Certification from NASSCO CIPP and MH (3) NASCO PACP, MACP (12) 2 255 37 49 12 1 1 0 100 0 0 0 0 0 0 100 25686 0 None 0 0 0 19 21 31 20 9 0 0 100 0 0 19 21 31 20 9 0 0 100 0 0 19 21 31 20 9 0 0 100 0 173 88.5 3 420108001 001, , CA WWTP same agency Y N Montecito Sanitary District 3SSO10291 N Santa Barbara County 3SSO10260 NA 172 2 23 Y Y Other (specify below) Category 1. Private rehabilitated lateral protruding into city sewer main. Category 1. Wipes Other (specify below) Private lateral. NA Rehabilitation of sewer mains and MHs SmartCovers to monitor sewer system I&I study Smoke test I&I basins Capacity Study 2025 3SSO10265 3 616 26-MAR-26 Municipal(Public) 87291 6 15 3 1 10 9 4 9 1 0 ITCP Certification from NASSCO CIPP and MH (3) NASCO PACP, MACP (10) 2 263 37 49 12 1 1 0 100 0 0 0 0 0 0 100 25862 0 None 0 0 0 19 21 30 20 9 1 0 100 0 0 19 21 31 20 9 0 0 100 0 0 19 21 31 20 9 0 0 100 0 251 104 3 420108001 El Estero Water Resource Center 520 East Yanonali Santa Barbara, CA, 93103 WWTP same agency Y N Montecito Sanitary District 3SSO10291 N Santa Barbara County 3SSO10260 NA 172 2 23 Y Y Other (specify below) Category 1: Contractor error associated with bypass operations of the sewer system at 2726 De La Vina. Other (specify below) Category 1: Contractor error associated with bypass operations of the sewer system at 2726 De La Vina. NA Rehabilitation of sewer mains and manholes (MHs) City operates 57 SmartCovers for real-time sewer system monitoring Inflow and Infiltration (I&I) assessment study Smoke testing of I&I basins to identify sources of intrusion Sewer system capacity analysis Optimization of sewer cleaning frequencies based on system needs 2023 8SSO10636 8 616 28-MAR-24 Municipal(Public) 67440 2 3 1 1 1 2 1 1 0 0 n/a 4 167 20 70 8 2 0 0 100 100 0 0 0 0 0 100 20504 16 Lower only 1 0 10 10 10 70 0 0 0 0 100 0 1 1 1 0 0 0 0 0 3 0 0 2 0 0 0 0 0 3 5 0 86 2 8SSO10636 Colton Water Reclamation Facility CS, 160 South 10th Street, Colton, CA 92324 WWTP same agency Y N Grand Terrace City CS 8SSO10575 N Rialto City CS 8SSO10594 n/a 1 2 1 Y Fats, Oil and Grease (FOG) In addition to FOG, pump failure at pump stations have also caused major spills in the past. Gravity Mainline Also pump station - power & mechanical N/A In order to address deficiencies, the City of Colton has: lined sewer mains to increase C- factor; rehabilitated manholes to improve their structural integrity; installed new pumps at 2 lift stations; installed 5 smart covers at priority spots; employed 2 Collections Technicians to increase preventive maintenance efforts; and conducted root control and removal procedures with help from Dukes Root-X. 2024 8SSO10636 8 616 01-MAY-25 Municipal(Public) 67440 3 3 1 1 3 2 1 2 0 0 N/A 4 167 20 70 8 2 0 0 100 100 0 0 0 0 0 100 20504 16 Lower only 1 0 10 10 10 70 0 0 0 0 100 0 1 1 1 0 0 0 0 0 3 0 0 2 0 0 0 0 0 3 5 0 120 0 8 360105001 Wastewater Treatment Facility 1201 Colton, CA 92324 WWTP same agency Y N Grand Terrace City CS 8SSO10575 N Rialto City CS 8SSO10594 N/A 1 2 1 Y Y Fats, Oil and Grease (FOG) Vandalism Gravity Mainline Pump Station - Power & Mechanical N/A In order to address deficiencies, the City of Colton has: installed a back-up generator at a pump station; secured manhole cover lids; increased cleaning frequencies at high priority areas prone to FOG accumulation; and increased inspection frequencies at FSEs with a history of noncompliance. 2025 8SSO10636 8 616 17-MAR-26 Municipal(Public) 67440 3 4 1 1 2 2 2 1 0 0 N/A 4 160 20 70 8 2 0 0 100 100 0 0 0 0 0 100 20504 16 Lower only 1 0 10 10 10 70 0 0 0 0 100 0 1 1 1 0 0 0 0 0 3 0 0 2 0 0 0 0 0 3 5 0 100 0 8SSO10636 Colton Wastewater Treatment Facility 1201 S. Rancho Ave Colton Ca. 92324 WWTP other agency Y N Grand Terrace City 8SSO10575 N Rialto City CS 8SSO10594 N/A 1 2 1 Y Y Fats, Oil and Grease (FOG) Homeless Vandalism Gravity Mainline Lift Stations None In addition to stationary and portable generators the City of Colton has Purchased a CCTV Van and is currently doing daily CCTV inspections of the sewer system. 2023 8SSO10635 8 616 30-DEC-25 Municipal(Public) 6200 8 4 2 1 0 0 0 0 0 0 n/a 1 29 0 87 1 12 0 0 100 0 0 0 0 0 0 0 19 0 None 0 0 0 10 80 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 4 8 300110002 001, , CA SSS other agency N n/a 0 0 0 N Other (specify below) None Other (specify below) None None None 2025 8SSO10635 8 616 23-MAR-26 Municipal(Public) 6200 8 4 2 1 0 0 0 0 0 0 n/a 1 29 0 87 1 12 0 0 100 0 0 0 0 0 0 0 19 0 None 0 0 0 10 80 10 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 4 8 300110002 Orange , Sanitation District, CA SSS other agency N n/a 0 0 0 N N Root Intrusion None Other (specify below) None None None 2023 3SSO10267 3 616 19-MAR-24 Municipal(Public) 4158 10 30 6 2 22 1 0 2 0 1 1 15 38 49 10 3 0 0 100 100 0 0 0 0 0 100 0 0 None 0 18 5 65 9 3 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 6 0 0 0 0 0 9 0 7 1 3sso10267 City of Watsonville WWTP same agency N 1 1 0 Y Y Other (specify below) None in 2023 Other (specify below) None in 2023 None None 2025 3SSO10267 3 616 20-MAR-26 Municipal(Public) 4158 10 32 6 2 9 1 0 2 0 1 NA 1 15 26 56 14 4 0 0 100 100 0 0 0 0 0 100 0 0 None 0 24 5 65 6 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 0 6 0 0 0 0 0 9 0 14.4 .1 3 440104001 001, , CA WWTP other agency N NA 1 1 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance NA Force Main NA None The spill was a result of a sanitation employee failing to mark the force main. The supervisor conducted a tailgate safety meeting with staff responsible for USA (Underground Service Alert) markings. The meeting focused on proper procedures to follow when marking USA tickets in areas where force mains are present within excavation limits, emphasizing heightened awareness and verification steps prior to excavation. 2023 8SSO10630 8 616 26-MAR-24 School 64000 0 11 2 2 0 0 0 0 0 0 None 0 9 0 56 43 0 0 1 100 0 0 0 0 0 0 0 150 150 Upper and Lower 9 2 8 2 88 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 4 8SSO10587 Michelson WRP CS, PO Box 57000 , Irvine, CA 92619 WWTP other agency N N None N/A N/A 0 0 0 Y Y Debris-wipes/Non-disposables N/A Upper Lateral N/A N/A The sanitary system undergoes regular maintenance and inspection on a routine schedule. Staff receives ongoing training. 2024 8SSO10630 8 616 14-MAR-25 School 64000 0 11 2 2 0 0 0 0 0 0 None 0 9 0 56 43 0 0 1 100 0 0 0 0 0 0 0 150 150 Upper and Lower 9 2 8 2 88 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 4 8SSO10587 Michelson WRP CS, PO Box 57000, Irvine, CA 92619 WWTP other agency N N None N/A N/A 0 0 0 Y Y Debris from Construction N/A Manhole N/A N/A The sanitary system undergoes regular maintenance and inspection on a routine schedule. Staff receives ongoing training. Inspections were implemented during soil moving activities. 2025 8SSO10630 8 616 11-FEB-26 School 64000 0 11 2 2 0 0 0 0 0 0 None 0 9 0 56 43 0 0 1 100 0 0 0 0 0 0 0 150 150 Upper and Lower 9 2 8 2 88 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 4 8SSO10587 Michelson WRP CS, PO Box 57000, Irvine, CA 92619 WWTP other agency N N None N/A N/A 0 0 0 Y Y Debris-wipes/Non-disposables N/A Upper Lateral N/A N/A The sanitary system undergoes regular maintenance and inspection on a routine schedule. Staff receives ongoing training. Inspections were implemented during soil moving activities. 2023 3SSO10270 3 616 31-MAR-25 Municipal(Public) 40000 2 7 2 1 2 3 3 2 0 3 Dept. of Industrial Relations – Certified Electricians: 2 1 132 9 70 16 5 0 0 100 13 0 87 0 0 0 100 11000 0 None 0 0 1 10 69 20 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 52 34 3 420102001 Goleta Sanitary District Wastewater Treatment Plant, 1 Moffett Place Goleta, CA 93117 WWTP same agency Y N Santa Barbara Municipal Airport CS 3SSO11455 36 1 1 Y Pipe Structural Problem/Failure - Installation *The spill cause listed in #15 was for our largest spill of 2023, SSO Event ID: 887590, more information is provided in #18. Our only other spill of the year was a 29 gal Category 4 spill, caused by construction debris (sewer pipe plug). Force Main 0 N/A For the spill event (SSO Event ID: 887590) related to item #15: The force main clean-out pipe and cover was repaired. Priority maintenance work order and Excel spreadsheet have been modified to include inspection of all force main clean-out end caps and covers: See Attachment SSO Review FSLS. 2024 3SSO10270 3 616 31-MAR-25 Municipal(Public) 40000 5 5 2 1 3 4 3 1 0 2 Dept. of Industrial Relations – Certified Electricians: 3 1 135 9 70 16 5 0 0 100 13 0 87 0 0 0 100 11000 0 None 0 0 1 10 69 20 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 48 30 3 420102001 Goleta Sanitary District Wastewater Treatment Plant, 1 Moffett Place Goleta, CA 93117 WWTP same agency Y N Santa Barbara Municipal Airport CS 3SSO11455 65 1 1 Y Y Other (specify below) N/A, 0 spills in 2024 Other (specify below) N/A, 0 spills in 2024 0, N/A N/A, 0 spills in 2024 2025 3SSO10270 3 616 10-MAR-26 Municipal(Public) 40000 4 4 2 2 5 2 2 3 0 2 Department of Industrial Relations - Certified Electricians: 3 1 135 9 70 16 5 0 0 100 13 0 87 0 0 0 100 11000 0 None 0 1 1 10 68 20 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 58 23 3 420102001 Goleta Sanitary District Wastewater Treatment Plant, 1 Moffett Place Goleta, CA 93117 WWTP same agency Y N Santa Barbara Municipal Airport CS 3SSO11455 65 1 1 Y Y Other (specify below) N/A 0 Spills in 2025 Other (specify below) N/A 0 Spills in 2025 0, N/A N/A, 0 spills in 2025 2023 4SSO10384 4 616 02-APR-24 Municipal(Public) 23124 5 28 2 1 6 1 1 0 0 0 0 45 0 95 5 0 0 0 100 0 0 0 0 0 0 0 5761 0 None 66 0 5 8 57 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 1 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Bradbury City CS 4SSO10371 0 0 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10384 4 616 23-DEC-25 Municipal(Public) 23124 2 25 2 2 5 0 1 0 0 0 0 44.6 0 95 5 0 0 0 100 0 0 0 0 0 0 0 5761 0 None 60 0 5 8 57 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13.3 0 4B190107020 001, , CA WWTP other agency Y N Bradbury City CS 4SSO10371 0 0 3 Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10384 4 616 25-MAR-26 Municipal(Public) 23493 25 4 2 1 0 0 0 0 0 0 0 44.6 0 95 5 0 0 0 100 0 0 0 0 0 0 0 5761 0 None 66 0 5 8 57 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10.5 .4 4B190107020 001, , CA WWTP other agency Y N Bradbury City CS 4SSO10371 1 0 3 Y Y Root Intrusion N/A Gravity Mainline N/A No. Added Sewer to Preventive Maintenance Program, Inspected Sewer Using CCTV to Determine Cause. 2023 4SSO10385 4 616 31-MAR-24 Municipal(Public) 109450 0 4 2 1 2 2 0 1 0 0 NA 2 203 1 71 15 6 2 5 100 90 0 0 0 0 10 100 134 10 Upper and Lower 1 0 1 3 13 15 7 0 0 61 100 0 0 0 0 0 0 0 0 0 0 0 0 3 4 0 0 0 0 0 0 0 45 16 NA Amanzi Hotel, 298 South Chestnut Street, Ventura, CA 93001 WWTP other agency N 1 1 1 Y Debris-Rags Siphon NA Upgraded pumps at all sewer lift stations, installed new transducers at all sewer lift stations, installed SCADA at all sewer lift stations, installed Smart covers at all sewer lift stations, installed Smart covers at some areas of concern, CIP projects, sewer upgrade and relocation projects, flow testing for any new housing and commercial projects, F.O.G. program, Root X for root intrusion, 2024 4SSO10385 4 616 26-MAR-25 Municipal(Public) 109450 0 5 2 1 3 7 0 1 0 0 NA 2 203 1 71 15 6 2 5 100 90 0 0 0 0 10 100 134 10 Upper and Lower 1 0 1 3 13 15 7 0 0 61 100 0 0 0 0 0 0 0 0 0 0 0 0 3 4 0 0 0 0 0 0 0 30.2 19.8 4B190107020 LACSD -1965 South Workman Mill Whittier, CA, 90601 WWTP other agency 4B190107016 LACSD - 301 Rosemead Blvd South El Monte, CA 91733 WWTP other agency N NA 1 1 1 Y Y Debris-Rags NA Siphon NA NA Upgraded pumps at all sewer lift stations, installed new transducers at all sewer lift stations, installed SCADA at all sewer lift stations, installed Smart covers at all sewer lift stations, installed Smart covers at some areas of concern, CIP projects, sewer upgrade and relocation projects, flow testing for any new housing and commercial projects, F.O.G. program, Root X for root intrusion. 2025 4SSO10385 4 616 23-MAR-26 Municipal(Public) 103519 1 5 1 1 2 5 0 1 0 0 NA 2 203 1 71 15 6 2 5 100 90 0 0 0 0 10 100 17347 10 Upper and Lower 1 0 1 3 13 15 7 0 0 61 100 0 0 0 0 0 0 0 0 0 0 0 0 3 4 0 0 0 0 0 0 0 32 14.6 NA LACSD - 1955 Workman Mill Rd, Whittier, CA 90601 WWTP other agency NA LACSD - 301 Rosemead Blvd, South El Monte, CA 91733 WWTP other agency N 2 2 1 Y Y Debris-Rags Siphon NO Upgraded pumps at all sewer lift stations, installed new transducers at all sewer lift stations, installed SCADA at all sewer lift stations, installed Smart covers at all sewer lift stations, installed Smart covers at some areas of concern, CIP projects, sewer upgrade and relocation projects, flow testing for any new housing and commercial projects, F.O.G. program, Root X for root intrusion, Upcoming CIPP projects, Grease blocks at siphon to help break down grease, enzymes in sewer lift station wet wells to help break down grease and debris. 2025 4SSO10386 4 616 09-JAN-26 Municipal(Public) 17000 1 3 1 0 1 3 0 1 0 0 NA 3 51 5 70 20 5 0 0 100 0 75 25 0 0 0 100 4700 0 None 0 3 15 7 17 27 0 0 0 0 100 0 4 3 0 0 0 0 0 0 7 0 1 1 0 0 0 0 0 0 2 0 50 47 4B190106002 Hyperion Wastewater Treatment Plant 12000 Playa Del Rey CA. 90293 WWTP other agency N 0 0 3 N Y Debris-General Pump Station - Controls NA Constant monitoring and maintenance 2023 4SSO10387 4 616 02-APR-24 Municipal(Public) 61022 1 1 1 1 1 1 1 0 0 0 1 88 0 96 4 0 0 0 100 100 0 0 0 0 0 100 14861 23 None 1 0 0 0 15 70 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 N/A N/A SSS other agency N N none N/A N none N/A N none N/A N none N/A N none N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Please see attached report N/A Please see attached report 2024 4SSO10387 4 616 18-MAR-25 Municipal(Public) 61022 1 1 1 1 1 1 1 0 0 0 1 88 0 96 4 0 0 0 100 100 0 0 0 0 0 100 14861 23 None 1 0 0 0 15 70 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 N/A N/A SSS other agency N N none N/A N none N/A N none N/A N none N/A N none N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline N/A Please see attached report 2025 4SSO10387 4 616 01-APR-26 Municipal(Public) 58921 1 1 1 1 1 1 1 0 0 0 N/A 1 88 0 96 4 0 0 0 100 100 0 0 0 0 0 100 14861 23 None 1 0 0 0 15 70 15 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 N/A N/A SSS other agency N N none N/A N none N/A N none N/A N none N/A N none N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Pump Station - Power N/A N/A 2023 4SSO10388 4 616 29-MAR-24 Municipal(Public) 201614 2 8 2 1 2 3 6 1 0 12 Eleven operators are PACP (Pipeline Assessment and Certification Program) certified through NASSCO (National Association of Sewer Service Companys). 1 351 0 86 10 4 0 0 100 0 0 0 0 0 0 0 36245 344 None 2 1 0 6 28 8 32 25 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 23 298 28 4SSO10450 City of LA Hyperion CS 12000 Vista DEl Mar, Playa Del Rey, CA 90293 WWTP same agency 4B190106001 LA Glendale WWTP 4600 Colorado Blvd. Los Angeles, CA 90039 WWTP same agency Y N City of LA- Hyperion CS 4SS010450 N Crescenta Valley WD CS 4SSO10444 N/A 45 1 4 Y Root Intrusion N/A Gravity Mainline N/A None at this time. Emergency repairs done by sewer contractors on past sanitary spill locations. See attachments for 845 Coronado Dr. Spill Event ID: 891457 2024 4SSO10388 4 616 05-DEC-25 Municipal(Public) 203000 1 8 1 1 4 2 4 1 0 11 Eleven (11) wastewater operators hold PACP certification (Pipeline Assessment Certification Program) through NASSCO. (National Association of Sewer Service Companies). 0 360 0 86 10 4 0 0 100 0 0 0 0 0 0 0 36245 344 None 2 1 0 6 28 8 32 25 0 0 100 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 352 115 4b190106002 001, , CA WWTP other agency 4B190106001 Los Angeles- Glendale Treatment Plant 4600 Colorado Blvd. Los Angeles, CA 90039 WWTP same agency Y N City of LA-Hyperion CS 4SSO10450 N Crescenta Valley Water District CS 4SSO10444 N/A 45 0 4 Y Y Root Intrusion N/A Gravity Mainline N/A None at this time. See attachments: 2024 Spills : Year in Review Ridgeview Lining Invoice 2025 4SSO10388 4 616 13-MAR-26 Municipal(Public) 203000 1 9 2 1 1 6 1 3 0 12 Twelve (12) operators are certified through the NASSCO's PACP, (National Association of Sewer Service Company 's Pipeline Assessment Certification Program). 0 360 0 86 10 4 0 0 100 0 0 0 0 0 0 0 36245 0 None 2 1 0 6 28 8 32 25 0 0 100 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 417 170.9 4B190106002 001, , CA WWTP other agency 4B190106001 001, , Los Angeles, CA 90039 WWTP other agency Y N City of LA-Hyperion CS 4SSO10450 N Crescenta Valley WD CS $sso10444 N/A 45 0 4 Y Root Intrusion Gravity Mainline See attached documents under 2025 Spills Year in Review. None at this time. See Attachments 2025 Spill: Year in Review and sewer repairs completed. Repair invoices for 2425 E. Chevy Chase Drive 1600 Ridgeview R/W lining invoice and 1606 Trenton Spot Repair. 2023 4SSO10389 4 616 02-APR-24 Municipal(Public) 52830 5 28 2 1 6 1 1 0 0 0 0 143 0 95 5 0 0 0 100 0 0 0 0 0 0 0 14826 0 None 169 0 1 14 77 8 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4SSO11401 County Sanitation District No. 22 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 1 Y Y Other (specify below) Heavy Roots Gravity Mainline None Will inspect sewer using CCTV to determine if further actions are needed. 2025 4SSO10389 4 616 13-MAR-26 Municipal(Public) 52830 25 4 2 1 0 0 0 0 0 0 0 143.2 0 95 5 0 0 0 100 0 0 0 0 0 0 0 14826 0 None 169 0 1 14 77 8 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 40 .5 4B190107020 San Jose Creek Water Reclamation Plant, 1965, 1971 S. Workman Mill Rd., Whittier, CA 90601 SSS other agency N 21 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline No Spill corrective action: Added Sewer to Preventive Maintenance Program, Inspected Sewer Using CCTV to Determine Cause 10.a. If other, describe: 10.b. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps: Mainline televised and added sewer to preventive maintenance program. 10.c. Schedule of major milestones: 60-Day Rodder Periodic. 2023 4SSO10390 4 616 04-APR-24 Municipal(Public) 15884 6 26 3 1 1 1 1 0 0 0 0 16 0 94 6 0 0 0 100 0 0 0 0 0 0 0 2464 0 None 28 0 0 4 10 86 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 1 4SSO11398 County Sanitation District No. 19 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10390 4 616 18-DEC-25 Municipal(Public) 13396 2 27 3 1 1 2 1 0 0 0 0 15.8 0 93 7 0 0 0 100 0 0 0 0 0 0 0 2464 0 None 0 0 0 4 10 86 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23.4 .1 4B190107015 Los Coyotes Water Reclamation Plant WWTP other agency N 0 0 2 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Grease Inspected Sewer Using CCTV to Determine Cause, Added Sewer to Preventive Maintenance Program 2025 4SSO10390 4 616 25-MAR-26 Municipal(Public) 13396 2 19 2 1 0 0 1 0 0 0 0 0 15.8 0 93 7 0 0 0 100 0 0 0 0 0 0 0 2464 0 None 28 0 0 4 10 86 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19.6 0 4B190107015 Los Coyotes Water Reclamation Plant WWTP other agency N 0 0 2 Y Y Other (specify below) NO SSO 2025 Other (specify below) NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 4SSO10391 4 616 28-MAR-24 Municipal(Public) 90000 3 2 1 2 3 0 0 0 0 0 0 0 96 1 86 13 0 0 0 100 0 0 0 0 0 0 0 12000 17 None 0 0 0 2 8 45 45 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 50 1 4SSO11391 County Sanitation District No. 5 CS, , Whittier, CA SSS other agency Y N LA COUNTY SANITATION DISCTRICT 05JOS N/A 0 0 7 N Y Root Intrusion N/A Upper Lateral N/A N/A N/A 2023 4SSO10392 4 616 28-MAR-24 Municipal(Public) 19557 1 1 1 1 0 0 0 0 0 0 N/A 0 37 11 80 4 5 0 0 100 0 0 0 0 0 0 0 6500 0 None 0 0 1 7 10 40 24 18 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 5 10 1 4B190106002 LA County San Dist., City of Carson SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A none increase cleaning 2025 4SSO10392 4 616 17-MAR-26 Municipal(Public) 19688 1 1 1 1 0 0 0 0 0 0 n/a 0 37 11 80 4 5 0 0 100 0 0 0 0 0 0 0 6500 0 None 0 0 1 7 10 40 24 18 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 5 10 1 4B190106002 001, , CA SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 0 0 N Y Fats, Oil and Grease (FOG) n/a Other (specify below) n/a none more rigorous FOG inspections 2023 4SSO10394 4 616 02-APR-24 Municipal(Public) 264 5 28 3 2 6 1 1 0 0 0 0 50 0 57 42 1 0 0 100 0 0 0 0 0 0 0 1313 0 None 0 0 0 14 71 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 4SSO11394 County Sanitation District No. 15 CS, , Whittier, CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA WWTP other agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Sewer is already added to preventive maintenance program. Will also inspect sewer using CCTV to determine if further actions are needed. 2024 4SSO10394 4 616 26-MAR-25 Municipal(Public) 264 2 25 2 1 5 0 1 0 0 0 None 0 49.6 0 55 44 1 0 0 100 0 0 0 0 0 0 0 1313 0 None 0 0 0 14 71 15 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14.7 0 4SSO11394 County Sanitation District No. 15 CS, Whittier CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, Whittier CA SSS other agency 4SSO11400 County Sanitation District No. 21 CS, Whittier CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, Whittier CA SSS other agency N N N NA NA N NA NA N NA NA N NA NA None 0 0 8 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10394 4 616 23-MAR-26 Municipal(Public) 264 25 4 2 1 0 0 0 0 0 0 0 0 49.6 0 55 44 1 0 0 100 0 0 0 0 0 0 0 1313 0 None 0 0 0 14 71 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 .1 4B190107020 San Jose Creek Water Reclamation Plant, 1965, 1971 S. Workman Mill Rd., Whittier, CA 90601 SSS other agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 4 0 8 Y Y Damage by Others Not Related to Collection System Construction/Maintenance A CSMD sewer mainline was damaged within Union Pacific Railroad (UPRR) right-of-way inside the City of Industry due to ongoing construction in the railroad right-of-way. Gravity Mainline N/A No This is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Council of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016. 2025 4SSO10395 4 616 19-MAR-26 Municipal(Public) 103621 0 5 1 1 1 0 0 0 0 0 Additionally: 2 licensed Professional Engineers 1 licensed QSP/QSD 0 145 1 95 4 0 0 0 100 0 0 0 0 0 0 0 17356 113 Lower only .7 0 3 3 5 15 67 0 0 7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 79.5 53 010001 A.K. Warren Water Resource Facility, 24501 S. Figueroa St., Carson, CA 90745 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA None 0 0 0 N Y Other (specify below) None Manhole NA None NA 2023 4SSO10396 4 616 23-DEC-25 Municipal(Public) 1717 5 28 3 1 6 1 1 0 0 0 2 12 0 78 22 0 0 0 100 75 0 25 0 0 0 100 1112 0 None 0 0 0 7 64 29 0 0 0 0 100 0 0 1 2 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 18 1 4B190107020 San Jose Creek WRP LA County Sanitation District WWTP other agency N 0 0 0 Y Y Other (specify below) No SSO in 2023 Other (specify below) n/a n/a n/a 2025 4SSO10396 4 616 30-MAR-26 Municipal(Public) 1717 26 4 3 1 6 2 2 0 0 0 0 2.2 11.4 0 78 22 0 0 0 100 75 0 25 0 0 0 100 1112 0 None 0 0 0 7 64 29 0 0 0 0 100 0 0 1 2 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 4.4 0 4B190107020 San Jose Creek Water Reclamation Plant 1965, 1971 S. Workman Mill Rd., Whittier, CA 90601 WWTP other agency N 1 3 0 Y Y Other (specify below) No SSO 2025 Other (specify below) No SSO 2025 No SSO 2025 No SSO 2025 2023 4SSO10397 4 616 02-APR-24 Municipal(Public) 19752 5 28 2 1 6 1 1 0 0 0 n/a 1 52 0 98 2 0 0 0 100 100 0 0 0 0 0 100 4722 0 None 0 0 64 25 11 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 3 0 1 0 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Yes Will inspect the sewer using CCTV to determine if further action is needed. 2024 4SSO10397 4 616 23-DEC-25 Municipal(Public) 20094 2 25 2 1 5 0 1 0 0 0 N/A .5 51.8 54 9819 175 0 0 0 100 87 13 0 0 0 0 100 4722 0 None 0 0 64 25 11 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 3 0 8.3 .2 4B190107020 San Jose Creek Water Reclamation Plant WWTP other agency N 0 0 0 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO10397 4 616 31-MAR-26 Municipal(Public) 19935 26 4 3 1 2 2 0 0 0 0 0 .5 20 54 9819 175 0 0 0 100 87 13 0 0 0 0 100 4722 0 None 0 0 64 25 11 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 3 0 4.5 .2 4B190107020 San Jose Creek Water Reclamation Plant WWTP other agency N 5 0 0 Y Y Root Intrusion Gravity Mainline Mainline will be televised to determine if further actions are needed. Mainline will be televised to determine if further actions are needed and will be added to the preventive maintenance. 2023 4SSO10398 4 616 02-APR-24 Municipal(Public) 6161 5 28 3 1 6 1 1 0 0 0 0 1 3 0 77 23 0 0 0 100 100 0 0 0 0 0 100 114 0 None 0 0 0 31 69 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 6 1 4SSO11388 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10398 4 616 23-DEC-25 Municipal(Public) 5488 2 25 2 1 5 0 1 0 0 0 .2 2.7 0 71 29 0 0 0 100 100 0 0 0 0 0 100 114 0 None 0 0 0 31 69 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 .3 0 4B190107015 Los Coyote WRP LA County Sanitation District WWTP other agency N 0 0 0 Y Y Other (specify below) Debris from Lateral. Protruding lateral that was cut by others and not retrieved from sewer main. Manhole Staff discovered a newly installed lateral liner and excavation above the spillpoint. Inspected Sewer Using CCTV to Determine Cause. Discovered and removed interfering portion of protruding lateral. Liner had been cut previously and allowed to flow downstream. Crew is evaluating sewer main above the spill point to possibly identify a lateral with a new liner and will evaluate front yards for excavating 2025 4SSO10398 4 616 26-MAR-26 Municipal(Public) 6161 26 4 3 1 2 2 0 0 0 0 0 .1 2.6 0 71 29 0 0 0 100 100 0 0 0 0 0 100 114 0 None 0 0 0 31 69 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 .6 0 4B190107015 Los Coyotes Water Reclamation Plant16515 Piuma Ave , Cerritos, CA 90703 SSS other agency N 0 0 0 Y Y Other (specify below) NO SSO 2025 Manhole NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 4SSO10399 4 616 02-APR-24 Municipal(Public) 50015 6 26 3 1 1 1 1 0 0 0 2 120 0 86 13 1 0 0 100 100 0 0 0 0 0 100 13957 0 None 0 0 0 14 23 63 0 0 0 0 100 0 0 1 2 1 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 0 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency 4SSO11397 County Sanitation District No. 18 CS, , Whittier, CA SSS other agency N 0 0 0 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO10399 4 616 18-DEC-25 Municipal(Public) 46156 2 27 3 1 1 2 1 0 0 0 1.2 118.7 0 86 14 0 0 0 100 10 90 0 0 0 0 100 13957 0 None 0 0 0 14 23 63 0 0 0 0 100 0 0 1 2 1 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 22 .1 4B190107015 Los Coyotes WRP WWTP other agency SSS other agency N 0 0 1 Y Y Root Intrusion Root Intrusion Gravity Mainline Will inspect sewer using CCTV to determine if further actions are needed. Other (specify below) Will inspect sewer using CCTV to determine if further actions are needed. 2025 4SSO10399 4 616 16-MAR-26 Municipal(Public) 46156 3 26 3 1 2 2 1 0 0 0 0 1.2 118.7 0 86 14 0 0 0 100 10 90 0 0 0 0 100 13957 0 None 0 0 0 14 23 63 0 0 0 0 100 0 0 1 2 1 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 22.3 .2 4B190107015 Los Coyotes WRP 16515 Piuma Ave., Cerritos CA 90703 WWTP other agency N 9 0 1 Y Y Root Intrusion Gravity Mainline no Spill corrective action: Added Sewer to Preventive Maintenance Program 10.a. If other, describe: 10.b. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps: The mainline was added to a 30-day preventive hydro cleaning program. PM No. 09C6148 10.c. Schedule of major milestones: The mainline was added to a 30-day preventive hydro cleaning program. PM No. 09C6148 2023 3SSO10272 3 616 29-MAR-24 Municipal(Public) 18967 4 3 0 1 0 0 0 0 0 0 Six employees have a certificate of completion in Operation and Maintenance of Wastewater Collection Systems Volume I issued by California State University Sacramento. 1 22 30 50 15 5 0 0 100 50 50 0 0 0 0 0 3683 0 None 0 4 28 28 15 20 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 0 0 0 5 1 12 12 3 270105001 City of Greenfield WWTP, NE End of Walnut, Greenfield, CA, 93960 WWTP same agency N N/A 0 0 0 Y Pump Station Failure - Mechanical The largest spill that occurred in 2023 was caused by a lift station failure. Other spills were caused by Fats, Oils, and Grease (FOG) in the collection system. Other (specify below) Most spills appeared at manholes; as noted above, the largest spill occurred due to a lift station failure and other spills were caused by FOG in the collection system. N/A System continues to conduct video inspections of collection system, conduct inspections and repairs to lift stations, and is implementing a FOG management program City-wide. 2024 3SSO10272 3 616 13-JAN-25 Municipal(Public) 18967 6 3 0 1 6 0 0 0 0 6 10 employees have a certificate of completion in Operation and Maintenance of Wastewater Collections Systems Volume I issue by California State University Sacramento .2 10 0 24 60 15 0 0 99 0 0 0 0 0 1 1 3800 0 None 0 4 28 28 15 20 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 0 0 0 5 1 12.5 12.5 3 270105001 41901 Walnut Ave, Greenfield, CA 93927 WWTP same agency N 0 0 0 Y Other (specify below) Heavy rains; atmospheric rivers Manhole N/A System continues to conduct video inspections of collections system, conduct inspections and repairs to lift stations, and is implementing FOG management and education program City-wide 2025 3SSO10272 3 616 18-MAR-26 Municipal(Public) 18937 3 4 0 2 1 5 0 0 0 6 N/A .2 10 0 24 60 15 0 0 99 0 0 0 0 0 1 1 3900 0 None 0 4 28 28 15 0 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 0 0 0 5 1 12.5 12.5 3 270105001 309.30 Soledad HA, , CA WWTP same agency N N/A N/A N/A N/A N/A N/A 0 0 0 N Y Other (specify below) The City reported zero (()) spills in 2025. Other (specify below) The City reported zero (()) spills in 2025. N/A System completed video inspections of collections system (main lines over 10 years old), conduct inspections and preventative maintenance repairs to various lift stations. Remediated various I & I manhole locations. Commenced contract with a consultant to prepare a Basis of Design Report (BDR) for replacement of the Tyler Lift Station. Performed FOG education and outreach citywide. 2023 4SSO10400 4 616 29-DEC-25 Municipal(Public) 38062 0 1 1 1 0 0 0 0 0 0 0 0 63.2 1 86 12 1 0 0 100 0 0 0 0 0 0 0 7500 0 None 0 0 6 19 32 43 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 0 4B190107020 San Jose Creek Water Reclamation Plant, 1965 Workman Mill Road Whittier, CA 90601 WWTP other agency N N N/A 0 0 1 Y N Fats, Oil and Grease (FOG) Root Intrusion Gravity Mainline N/A None The City continues to implement its CIP program and is developing a new 10-year CIP based on the results of CCTV inspections over the coming years. 2024 4SSO10400 4 616 29-DEC-25 Municipal(Public) 38062 0 1 1 1 0 0 0 0 0 0 0 0 63.2 1 86 12 1 0 0 100 0 0 0 0 0 0 0 7500 0 None 0 0 6 19 32 43 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 0 4B190107020 San Jose Creek Water Reclamation Plant, 1965 Workman Mill Road Whittier, CA 90601 WWTP other agency N N N/A 0 0 1 Y N Fats, Oil and Grease (FOG) Root Intrusion Gravity Mainline N/A None The City continues to implement its CIP program and is developing a new 10-year CIP based on the results of CCTV inspections over the coming years. 2025 4SSO10400 4 616 24-MAR-26 Municipal(Public) 38062 0 1 1 1 0 0 0 0 0 0 0 0 63 1 86 12 1 0 0 100 0 0 0 0 0 0 0 7500 0 None 0 0 6 19 32 43 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 0 4B190107020 San Jose Creek Water Reclamation Plant, 1965 Workman Mill Road Whittier, CA 90601 WWTP other agency N N N/A 0 0 1 Y Y Fats, Oil and Grease (FOG) Root Intrusion Gravity Mainline N/A None The City continues to implement its CIP program and is developing a new 10-year CIP based on the results of CCTV inspections over the coming years. 2023 3SSO10275 3 616 04-NOV-25 Municipal(Public) 3874 2 2 1 2 0 0 0 0 0 0 The system does not require certified personnel. 7 16 0 100 0 0 0 0 100 100 0 0 0 0 0 100 1867 0 None 0 0 10 26 64 0 0 0 0 0 100 0 2 0 3 0 0 0 0 0 5 0 3 0 2 0 0 0 0 0 5 0 6 0 3SSO10275 Heritage Ranch CS, 4870 Heritage Road, Paso Robles, CA 93446 WWTP same agency N 5 0 2 N Y Collection System Maintenance Failure (specify below) Level indicator or utility power failure. Pump Station - Controls Level indicator or utility power failure. None SCADA and component upgrades to include new and upgraded controls. 2024 3SSO10275 3 616 04-NOV-25 Municipal(Public) 3618 2 2 2 0 0 0 0 0 0 0 The system does not require CWEA certified personnel 7 16 0 100 0 0 0 0 100 100 0 0 0 0 0 100 1867 0 None 0 0 10 26 64 0 0 0 0 0 100 0 2 0 3 0 0 0 0 0 5 0 3 0 2 0 0 0 0 0 5 0 6 6 3 401013001 WWTP same agency N 5 0 2 N Y Root Intrusion Upper Lateral none Manage the SSMP 2025 3SSO10275 3 616 16-MAR-26 Municipal(Public) 3618 2 2 2 0 0 0 0 0 0 0 the system does not require CWEA certified personnel 7 16 0 100 0 0 0 0 100 100 0 0 0 0 100 1870 0 None 0 0 10 26 64 0 0 0 0 0 100 0 2 0 3 0 0 0 0 0 5 0 3 0 2 0 0 0 0 0 5 0 6 6 3 401013001 WWTP same agency N 5 0 2 N Y Other (specify below) No spills during this reporting year Upper Lateral NONE manage and audit the SSMP 2023 3SSO10278 3 616 15-DEC-25 Municipal(Public) 14000 2 2 1 1 2 0 0 0 0 0 Miles Farmer with Cypress Water is a Grade III is the registered operator of our Wastewater Treatment plant. 0 32 20 31 32 17 0 0 0 0 0 0 0 0 0 0 2805 0 None 0 1 13 19 23 19 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 2 2 3270106001 KC Domestic WWTP, Cemetary Rd King City CA 93930 WWTP same agency N 0 1 0 Y Debris-Rags Gravity Mainline None We take preventative steps to prevent blockage in our older smaller pipes in the around the downtown core area of the City. This is where we have 6 inch clay sewer pipes. These are considered our hot spots and we have a quarterly schedule where we clean a portion of them out at at time. We have also started a replacement program for our 6 inch clay pipes. Last year we replaced two large runs along the entirety of Lynn Street and Pearl Street 2024 3SSO10278 3 616 16-MAR-26 Municipal(Public) 14000 2 2 1 1 2 0 0 0 0 0 Miles Farmer with Cypress Water is a Grade III is the registered operator of our Wastewater Treatment plant. 0 32 20 31 32 17 0 0 0 0 0 0 0 0 0 0 2805 0 None 0 1 13 19 23 19 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 3 1 3270106001 KC Domestic WWTP, Cemetary Rd King City CA 93930 WWTP same agency N 0 1 0 Y Debris-Rags Gravity Mainline None We take preventative steps to prevent blockage in our older smaller pipes in the around the downtown core area of the City. This is where we have 6 inch clay sewer pipes. These are considered our hot spots and we have a quarterly schedule where we clean a portion of them out at at time. We have also started a replacement program for our 6 inch clay pipes. 2025 3SSO10278 3 616 16-MAR-26 Municipal(Public) 14000 2 2 1 1 2 0 0 0 0 0 Miles Farmer with Cypress Water is a Grade III is the registered operator of our Wastewater Treatment plant. 0 32 20 31 32 17 0 0 0 0 0 0 0 0 0 0 2805 0 None 0 1 13 19 23 19 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 3.5 0 3270106001 KC Domestic WWTP, Cemetary Rd King City CA 93930 WWTP same agency N 0 1 0 Y Debris-Rags Gravity Mainline None We take preventative steps to prevent blockage in our older smaller pipes in the around the downtown core area of the City. This is where we have 6 inch clay sewer pipes. These are considered our hot spots and we have a quarterly schedule where we clean a portion of them out at at time. We have also started a replacement program for our 6 inch clay pipes. 2023 3SSO10279 3 616 29-MAR-24 Municipal(Public) 35000 1 13 2 2 2 4 5 2 0 0 1 additional for Lab analyst grade 1 CWEA 2 127 3 95 2 1 0 0 100 100 0 0 0 0 0 100 12927 0 None 0 2 14 26 31 24 2 1 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 3 76 11 3SSO10279 Laguna County Sanitation District, 620 Foster Road Santa Maria, CA 93455 WWTP same agency 3SSO10279 Laguna County Sanitation District, 620 Foster Road Santa Maria, CA 93455 SSS other agency Y Y LCSD, but flows to City of Santa Maria through Joint Powers Agreement 3SSO10279 N/A 22 4 7 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Rehabilitation of sewer trunk lines and repairs and replacements pf pipes and manholes as necessary 2024 3SSO10279 3 616 27-DEC-25 Municipal(Public) 35000 1 13 2 2 2 4 5 2 0 0 1 additional for Lab analyst grade 1 CWEA 2 127 3 95 2 1 0 0 100 100 0 0 0 0 0 100 12927 0 None 0 2 14 26 31 24 2 1 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 3 76 11 3 420104001 Laguna County Sanitation District, 620 Foster Road Santa Maria, CA 93455 WWTP same agency 3 420109001 City of Santa Maria, 601 Black Rd, Santa Maria, CA 93458 SSS other agency N Y LCSD, but flows to City of Santa Maria through Joint Powers Agreement 3SSO10279 22 4 7 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Rehabilitation of sewer trunk lines and repairs and replacements of pipes and manholes as necessary 2025 3SSO10279 3 616 13-MAR-26 Municipal(Public) 35000 2 13 2 2 2 4 5 1 0 0 1 additional for Lab analyst grade 1 CWEA 2 129 3 95 2 1 0 0 100 100 0 0 0 0 0 100 12953 0 None 0 2 14 26 31 24 2 1 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 3 142 11 3 420104001 Laguna County Sanitation District, 620 Foster Road Santa Maria, CA 93455 WWTP same agency 3 420109001 City of Santa Maria, 601 Black Rd, Santa Maria, CA 93458 WWTP other agency N Y LCSD, but flows to City of Santa Maria through Joint Powers Agreement 3SSO10279 N/A 22 4 7 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Rehabilitation of sewer trunk lines and repairs and replacements of pipes and manholes as necessary 2023 3SSO10284 3 616 26-MAR-24 Municipal(Public) 54551 0 1 2 2 2 1 0 1 1 98765432 N/A 2 110 34 41 20 3 0 0 98 2 0 0 0 0 0 2 8960 0 None 0 0 18 63 0 0 0 19 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 0 97 4 3 420105001 LOMPOC REGIONAL WASTEWATER RECLAMATION PLANT | 1801 W CENTRAL AVE | LOMPOC, CA 93436 WWTP same agency Y N V.V.C.S.D. 3SSO 10345 N V.S.F.B. NA N/A 0 2 4 Y Y Debris-General N/A Manhole N/A Routine maintenance and CCTV inspection Capital Improvement Program for sewer line replacement and lift station improvement projects 2024 3SSO10284 3 616 03-JUL-25 Municipal(Public) 44444 0 1 2 2 2 1 0 1 1 98765432 N/A 2 110 34 41 20 3 0 0 98 2 0 0 0 0 0 2 8960 0 None 0 0 18 63 0 0 0 19 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 0 97 4 3 420105001 Lompoc Regional Wastewater Reclamation Plant WWTP same agency N N V.V.C.S.D. 3SSO 10345 N V.S.F.B. N/A N/A 0 2 4 Y Y Debris-General N/A Manhole N/A Routine maintenance and CCTV inspection Capital Improvement Program for sewer line replacement and lift station improvement projects. 2025 3SSO10284 3 616 18-MAR-26 Municipal(Public) 54551 0 2 1 1 2 1 0 1 0 0 N/A 2 11 34 41 20 3 2 0 100 3 0 0 0 0 0 3 8960 0 None 0 0 18 63 0 0 0 19 0 0 100 0 1 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 3 0 110 2.5 3 420105001 Lompoc Regional Wastewater Reclamation Plant WWTP same agency N N VVCSD 3SSO10345 N V.S.F.B. N/A N/A 4 4 4 N Y Debris-General N/A Manhole N/A NONE Ongoing C.I.P. Programs for Lift station Upgrades and Main line Replacements. 2023 3SSO10285 3 616 27-MAR-24 Municipal(Public) 1534 2 1 1 1 1 1 0 0 0 0 n/a 1 8 94 3 3 0 0 0 100 0 100 0 0 0 0 100 579 1 None 0 0 15 85 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 6 1 3SSO10285 Los Alamos CS, P.O. Box 675 , Los Alamos, CA 93440 WWTP same agency N N N/A N/A n/a 1 2 0 N Y Debris-General n/a Pump Station - Mechanical n/a n/a having a spare motor and other parts available in-house. 2024 3SSO10285 3 616 01-APR-25 Municipal(Public) 1534 2 1 1 1 1 1 0 0 0 0 n/a 1 8 94 3 3 0 0 0 100 0 100 0 0 0 0 100 579 1 None 0 0 15 85 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 1.6 .2 3SSO10285 Los Alamos CS, P.O. Box 675 , Los Alamos, CA 93440 WWTP same agency N N N/A N/A n/a 0 2 0 N Y Debris-General n/a Pump Station - Mechanical n/a n/a Spare motor available for lift station. 2025 3SSO10285 3 616 19-MAR-26 Municipal(Public) 1464 2 1 1 1 1 1 0 0 0 0 n/a 1 8 94 3 3 0 0 0 100 0 100 0 0 0 0 100 639 1 None 0 5 15 85 0 0 0 0 0 0 105 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 3SSO10285 Los Alamos CSD, P.O. Box 675 , Los Alamos, CA 93440 WWTP same agency N N/A N/A N/A 0 2 0 N Y Debris-General N/A Pump Station - Controls N/A N/A Spare motor available for lift station. 2023 3SSO10287 3 616 22-MAR-24 Municipal(Public) 36987 4 12 1 1 2 7 5 2 0 6 7 151 34 49 15 2 0 0 100 24 27 49 0 0 0 100 10033 10033 None 0 6 18 18 43 15 0 0 0 0 100 3 3 1 2 1 0 0 0 0 0 1 4 2 3 0 0 0 0 0 0 0 149 13 3 270118002 Monterey One Water; 5 Harris Ct. Monterey, CA 93940 WWTP other agency N N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A The District just purchased a new HD CCTV track camera, which is integrated into the District's Computer Maintenance Management System and GIS. The District is in the process of televising all of its sewer gravity mains to condition assess them. In addition, the District owns two hydrocleaners, which are sent out each work day, to routinely clean the system. Any known areas that are prone to stoppages/spills or have had a recent stoppage are put on a trouble spot list with a repeated frequency depending on the severity of the issue. These trouble spots are addressed beginning the first work day of the each month. Several sewer lift stations have been rehabilitated or completely rebuilt, and all stations have redundant communications, level and pump controls. 2024 3SSO10287 3 616 26-FEB-25 Municipal(Public) 37833 0 15 1 1 2 8 5 2 0 6 N/A 7 151 34 49 15 2 0 0 100 24 27 49 0 0 0 100 10375 10375 None 0 6 18 18 43 15 0 0 0 0 100 3 3 1 2 1 0 0 0 0 10 1 4 2 3 0 0 0 0 0 10 0 139 12.2 3 270118002 Monterey One Water; 5 Harris Ct. Monterey, CA 93940 WWTP other agency N N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A The District recently integrated its CCTV into its GIS and is now getting condition assessment data. That data will be used to help build future Capital Improvement Programs. In addition, the District owns two hydro-cleaners and proactively sends those cleaners out daily to clean the sewer lines. Lines that have reoccurring issues, get put onto a trouble spot list, and are cleaned at more frequent intervals (i.e. monthly, quarterly). The District is also proactively upgrading all of its Programmable Logic Controllers (PLCs) at all of its sewer lift stations, and in 2024 the District replaced nine of its sewer Flygt pumps, and added two spare VFD pumps. Lastly, the District replaced two Motor Control Centers and two Automatic Transfer Switches at two sewer lift stations in 2024. 2025 3SSO10287 3 616 12-FEB-26 Municipal(Public) 38918 0 15 1 1 2 8 5 2 0 6 N/A 7 153 34 49 15 2 0 0 100 24 27 49 0 0 0 100 10411 10411 None 0 6 18 18 43 15 0 0 0 0 100 3 3 1 2 1 0 0 0 0 10 1 4 2 3 0 0 0 0 0 10 0 183.1 13.4 3 270118002 Monterey One Water; 5 Harris Ct. Monterey, CA 93940 WWTP other agency N N/A 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance N/A Force Main N/A N/A A majority of the District's spills in 2025 were the result of construction activities associated with the City of Marina road improvement projects, not system failures. Those construction activities have been completed. In 2025, the District increased its hydro-cleaning by approximately 32% and its CCTV by 10% when compared to 2024. The District also installed three additional Smartcovers and continues to condition-assess our wastewater collection system by integrating our CCTV into our GIS system. 2023 3SSO10288 3 616 22-MAR-24 Municipal(Public) 5480 0 5 0 1 0 2 0 1 0 1 0 3 25 0 80 20 0 0 0 100 0 100 0 0 0 0 100 2308 0 None 0 0 20 20 60 0 0 0 0 0 100 0 3 0 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 100 0 25 0 3400115001 Meadowbrook Treatment Plant WWTP same agency N N n/a 0 0 0 Y Y Debris-General n/a Gravity Mainline n/a None Master Plan Updating project underway 2024 3SSO10288 3 616 17-JUN-25 Municipal(Public) 5480 0 5 0 1 0 2 0 1 0 1 N/A 3 25 0 80 20 0 0 0 100 20 80 0 0 0 0 100 2308 0 None 2 0 20 20 60 0 0 0 0 0 100 0 3 0 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 100 1 6 0 3 400115001 Meadowbrook Treatment Plant WWTP same agency N/A N/A N/A N/A N/A N/A N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Other (specify below) No major spill causes incurred or identified. Pump Station - Controls We have had issues with lift station control failures within the last 5 years. None. Continue to monitor/initiate Master Plan Update/develop CIP list 2025 3SSO10288 3 616 01-APR-26 Municipal(Public) 6184 0 5 0 1 0 2 1 1 0 0 0 4.4 30.5 12 67 21 0 0 0 100 43 21 36 0 0 0 100 2316 0 None 0 0 27 46 27 0 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 3 0 0 0 0 0 0 3 1 1.5 0 3 400115001 Meadowbrook Treatment Plant WWTP same agency N/A N/A N/A N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 3 1 0 N Y Other (specify below) No major spill causes incurred or identified. Pump Station - Mechanical We had issues with lift station pump failures at Westside LS (overtemp alarm), Volpi LS (seal fail), and Rossi Rd LS (seal fail). All failed pumps were pulled, replaced with spare on hand, inspected & repaired. None. Continue to monitor/Initiate Master Plan Update/Develop CIP list/Integrate Maintenance Tasks with new GIS System 2024 3SSO10289 3 616 05-NOV-25 Municipal(Public) 3600 1 1 1 0 3 0 0 0 0 0 N/A 2 21 2 90 8 0 0 0 100 0 100 0 0 0 0 100 1271 1271 Lower only 3 0 3 37 60 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 3SSO10289 Mission Hills La Purisima CS, 1550 East Burton Mesa Boulevard, Lompoc, CA 93436 WWTP same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0 0 0 N Y Debris-General N/A Force Main N/A N/A Repair leaks 2023 3SSO10291 3 616 11-DEC-25 Municipal(Public) 10000 2 3 1 1 2 1 1 3 0 4 NA 5 74 2 92 4 2 0 0 100 60 40 0 0 0 0 100 3131 0 None 0 5 15 80 0 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 1 0 2 0 0 0 0 0 0 3 0 96 14 3 420107001 Montecito SD CS, 1042 Monte Cristo Lane, Santa Barbara, CA 93108 WWTP same agency N NA 39 3 4 Y Y Collection System Maintenance Failure (specify below) Natural Disaster Pump Station Failure - Mechanical Other (specify below) Gravity Mainline Force Main NA CIP projects to analyze and replace aging infrastructure as needed. 2024 3SSO10291 3 616 26-MAR-25 Municipal(Public) 8638 0 5 1 1 3 2 2 2 0 3 NA 4.2 74 2 92 4 2 0 0 100 65 25 10 0 0 0 100 3144 0 None 0 5 15 0 80 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 0 0 3 0 0 0 0 0 4 0 99.9 12.8 3 420107001 Montecito SD CS, 1042 Monte Cristo Lane, Santa Barbara, CA 93108 WWTP same agency N NA 39 3 4 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) Gravity Mainline There are no current ongoing spill investigations. The District has identified manholes with inflow and infiltration (I&I) issues and is currently constructing a project to address them. Additionally, a wet weather flow monitoring project is nearing completion, which will enable the District to model the sewer system. This modeling will help identify surcharge locations and guide future project planning to improve system performance. Public outreach on illegal connections is ongoing to educate the community and reduce unauthorized system impacts 2025 3SSO10291 3 616 23-MAR-26 Municipal(Public) 8638 1 3 2 1 3 3 1 3 0 2 4.2 74.1 2 92 4 2 0 0 100 65 25 10 0 0 0 100 3203 0 None 0 5 15 0 80 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 1 0 0 2 0 0 0 0 0 3 0 98.7 13.5 3 420107001 Montecito SD CS, 1042 Monte Cristo Lane, Santa Barbara, CA 93108 WWTP same agency N 39 9 4 Y Y Other (specify below) No sanitary sewer spills occurred during the reporting period. Other (specify below) No sanitary sewer spills occurred during the reporting period; therefore, no system infrastructure failure points were identified. There are no ongoing spill investigations, as no spills occurred during the reporting period. No sanitary sewer spills occurred during the reporting period; therefore, no spill-related deficiencies were identified requiring corrective action. The District continues to proactively address potential system deficiencies through implementation of its Sewer System Management Plan (SSMP), including routine cleaning and inspection, condition assessment, and rehabilitation projects (e.g., CIPP lining and manhole rehabilitation). In addition, the District is actively advancing long-term planning efforts, including development of a Collection System Master Plan, a system-wide Life Expectancy Analysis, and a Septic-to-Sewer Master Plan, to further support system reliability, capacity assurance, and risk reduction. 2023 3SSO11524 3 616 28-MAR-24 Municipal(Public) 28069 2 3 1 1 0 1 0 0 0 0 2 99 49 36 13 2 0 0 100 1 1 0 0 0 0 0 9179 78 Upper and Lower 1 0 10 7 10 18 25 30 0 0 100 0 0 1 0 0 0 0 0 0 0 0 2 4 0 0 0 0 0 0 0 10 230 23 3SSO10296 Monterey One Water Reg Trtmt & Outfall Sys CS, 5 Harris Court, D Monterey, CA 93940 WWTP same agency Y N Naval Support Activity (NSA) Mtry-Post Graduate School (Federal Govt) US Navy-Federal N NSA La Mesa Village (Federal Govt) US Navy-Federal N NSA Fleet Numerical Meteorology/Oceanography Center (Federal Govt) US Navy-Federal N Monterey Peninsula College (State Govt-Office of State Architect) State OSA N Monterey Peninsula Airport District (CA Public Agency-Special District) Special Distric 25 0 0 Y Y Root Intrusion Gravity Mainline None. City has preventive maintenance program, as described below in Question 18. Annual root foaming, routine CCTV inspection, routine hydrojetting, routine weekly/quarterly hotspot hydrojetting, construction/ pipe rehabilitation. 2024 3SSO11524 3 616 30-DEC-25 Municipal(Public) 28784 2 3 1 1 0 1 0 0 0 0 0 1.5 99 49 36 13 2 0 0 100 1 1 0 0 0 0 2 9179 78 Upper and Lower .7 0 10 7 10 18 25 30 0 0 100 0 0 1 0 0 0 0 0 0 0 0 2 4 0 0 0 0 0 0 0 10 224 6.2 3 270118002 5 Harris Court, Building D, Monterey, CA 93940 WWTP same agency Y N Naval Support Activity (NSA) Mtry-Post Graduate School Federal - Unreg N NSA La Mesa Village Federal - Unreg N NSA Fleet Numerical Meteorology/Oceanography Center Federal - Unreg N Monterey Peninsula College State OSA N Monterey Peninsula Airport Federal N/A 25 0 0 Y Y Root Intrusion N/A Gravity Mainline N/A N/A Annual root foaming, routine CCTV inspection, routine hydrojetting, routine weekly/quarterly hotspot hydrojetting, ongoing sewer rehabilitation 2025 3SSO11524 3 616 09-MAR-26 Municipal(Public) 30218 2 3 1 1 1 1 0 0 0 0 0 1.5 99 49 36 13 2 0 0 100 1 1 0 0 0 0 2 9179 78 Upper and Lower .7 0 10 7 10 18 25 30 0 0 100 0 0 1 0 0 0 0 0 0 0 0 2 4 0 0 0 0 0 0 0 10 224 8.5 3SSO10296 5 Harris Court, Building D, Monterey, CA 93940 WWTP same agency Y N Naval Support Activity (NSA) Mtry-Post Graduate School Federal - Unreg N NSA La Mesa Village Federal - Unreg N NSA Fleet Numerical Meteorology/Oceanography Center Federal - Unreg N Monterey Peninsula College State - OSA N Monterey Peninsula Airport Federal N/A 25 0 0 Y Y Root Intrusion Fat, Oil, and Grease Manhole N/A N/A Annual root foaming, routine CCTV Inspection, Routine hydrojetting, routine weekly/quarterly hotspot hydrojetting, ongoing sewer rehabilitation 2023 3SSO10296 3 616 26-MAR-24 Municipal(Public) 279000 3 8 3 3 7 10 4 7 0 0 NA 32 4 3 0 0 24 73 0 100 12 0 57 26 6 0 100 0 0 None 0 35 0 66 0 0 0 0 0 0 100 0 0 10 0 0 0 0 0 0 10 3 1 0 0 0 0 0 0 0 4 8 2 0 3 270118002 001, , CA WWTP same agency Y N Salinas City CS 3SSO10314 N Monterey City CS 3SSO11524 N Pacific Grove City CS 3SSO11609 N Castroville Water District CS 3SSO20022 N Seaside Co Sd CS 3SSO10334 No- Marina Coast 3SSO10287 No- Boronda Sanitation District CS SSO18092 0 2 0 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure NA Air Relief Valve (ARV)/ Blow-Off Valve (BOV) NA none Increased ARV maintenance frequencies and installed Smart Cover alarms 2024 3SSO10296 3 616 01-APR-25 Municipal(Public) 279000 3 8 3 3 3 8 3 6 0 0 NA 42.6 9.2 28 0 0 13 59 0 100 12 0 60 28 0 0 100 0 0 None 0 32 8 51 9 0 0 0 0 0 100 0 0 10 0 0 0 0 0 0 10 3 1 0 0 0 0 0 0 0 4 8 2 0 3 270118002 001, , CA WWTP same agency Y N Salinas City CS 3SSO10314 N Monterey City CS 3SSO11524 N Pacific Grove City CS 3SSO11524 N Castroville Water District CS 3SSO20022 N Seaside Co Sd CS 3SSO10334 No - Marina Coast 3SSO10287 No - Boronda Sanitation District CS 3SSO18092 0 2 0 Y Other (specify below) Failed solenoid valve on a surge tank add air system. Other (specify below) Surge tank add air system N/A - Installed new solenoid bleed valve to replace the defective one - Increased inspection frequency from annually to quarterly - Rerouted add air system relief to a drain that returns flows to the wet well - Screened system to ID & correct similar configurations rerouting to wet wells. - Added SCADA monitoring to include high & low level alarms for surge tanks 2025 3SSO10296 3 616 13-MAR-26 Municipal(Public) 279000 0 8 1 1 1 3 0 5 0 1 Water System D2/T2 42.6 9.2 28 0 0 13 59 0 100 12 0 60 28 0 0 100 0 0 None 0 32 8 51 9 0 0 0 0 0 100 0 0 10 0 0 0 0 0 0 10 3 1 0 0 0 0 0 0 0 4 8 2 0 3 270118002 001, , CA WWTP same agency Y N Salinas City CS 3SSO10314 N Monterey City CS 3SSO11524 N Pacific Grove City CS 3SSO11609 N Castroville Water District CS 3SSO20022 N Seaside Co Sd CS 3SSO10334 No, Marina Coast, 3SSO10287 No, Boronda Sanitation District CS, SSO18092 0 2 0 Y Y Other (specify below) No spills in 2025. Other (specify below) No spills in 2025. No spills in 2025. N/A 2023 3SSO10297 3 1208 20-MAR-24 Municipal(Public) 1700 2 3 1 1 0 1 4 0 0 0 None 1 7 13 83 4 0 0 0 100 100 0 0 0 0 0 0 559 0 None 0 0 16 84 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 33 67 0 0 0 0 0 0 100 0 1 0 3 401028001 Nipomo CSD Black Lake WWTP same agency N 0 0 0 N Y Other (specify below) None Other (specify below) None None None 2023 3SSO10298 3 616 20-MAR-24 Municipal(Public) 8350 2 3 1 1 0 1 4 0 0 0 None 6 35 6 83 8 3 0 0 100 100 0 0 0 0 0 100 2738 0 None 0 0 29 63 7 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 40 60 0 0 0 0 0 0 100 0 5 0 3 400104001 Nipomo CSD Southland Treatment Facility WWTP same agency Y N County of San Luis Obispo CSA1 3SSO10257 2 1 0 Y Y Other (specify below) None Other (specify below) None None None 2024 3SSO10298 3 616 17-MAR-26 Municipal(Public) 8412 2 3 1 1 2 1 3 1 0 0 None 8.5 38.1 8 82 8 2 0 0 100 100 0 0 0 0 0 100 2740 0 None 0 0 29 63 7 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 4 8 0 0 0 0 0 0 13 0 35.3 2.5 3 400104001 Nipomo CSD Southland Wastewater Treatment Facility WWTP same agency 3 401028001 Nipomo CSD Blacklake Water Reclamation Facility WWTP same agency Y N County of San Luis Obispo CSA 1 3SSO10257 2 1 0 Y Y Other (specify below) None Other (specify below) None None None 2025 3SSO10298 3 616 17-MAR-26 Municipal(Public) 10152 2 3 1 1 2 1 3 1 0 0 None 8.5 38.1 8 82 8 2 0 0 100 100 0 0 0 0 0 100 3310 0 None 0 0 29 63 7 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 4 8 0 0 0 0 0 0 13 0 32.8 2.3 3 400104001 Southland Wastewater Treatment Facility WWTP same agency 3 401028001 Blackalake Water Reclamation Facility WWTP same agency Y N County of San Luis Obispo CSA 1 3SSO10257 2 1 0 Y Y Other (specify below) None Other (specify below) None None None 2023 8SSO10640 8 616 26-MAR-24 Municipal(Public) 2600000 0 5 2 1 2 8 7 5 0 3 none 21 364 0 2 17 40 41 0 100 0 6 6 59 29 0 100 1087 0 None 0 1 10 22 40 26 1 0 0 0 100 0 3 2 7 3 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 2 64 74 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency N N 84 20 102 Y Y Pipe Structural Problem/Failure - Installation none Force Main none None Asset management plan. 2024 8SSO10640 8 616 07-JUL-25 Municipal(Public) 2600000 0 17 2 1 3 6 7 3 0 3 21 364 0 2 17 40 41 0 100 0 6 6 59 29 0 100 1087 0 None 0 1 10 22 40 26 1 0 0 0 100 0 3 2 7 3 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 2 66.5 30 8 300110002 001, , CA WWTP same agency 8 300110002 001, , CA WWTP same agency N N 84 20 102 Y Y Pipe Structural Problem/Failure - Installation none Force Main none none Asset Management Plan. 2025 8SSO10640 8 616 01-APR-26 Municipal(Public) 2600000 0 18 2 2 4 10 8 3 0 3 21 364 0 2 17 40 41 0 100 0 6 6 59 29 0 100 1087 0 None 0 1 10 22 40 26 1 0 0 0 100 0 3 2 7 3 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 2 49.1 137.5 8 300110002 001, , CA WWTP same agency 8 300110002 001, , CA WWTP same agency N N 84 20 102 Y Y Pipe Structural Problem/Failure - Installation N/A Force Main N/A N/A Asset Management Plan 2023 4SSO11364 4 616 27-MAR-24 Municipal(Public) 5788 3 8 2 1 1 5 3 2 1 0 1 17 2 81 16 1 0 0 100 0 100 0 0 0 0 100 1369 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 4SSO10479 SSS same agency N 1 1 0 Y Y Other (specify below) None Gravity Mainline no na 2024 4SSO11364 4 616 02-APR-25 Municipal(Public) 5788 2 8 2 1 1 2 3 2 0 0 1 17 2 81 16 1 0 0 100 0 100 0 0 0 0 100 1369 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 4SSO10479 SSS same agency N 1 1 0 Y Y Other (specify below) none Other (specify below) no none n/a 2025 4SSO11364 4 616 24-MAR-26 Municipal(Public) 5788 3 8 2 1 0 2 3 1 0 0 1 17 2 81 16 1 0 0 100 0 100 0 0 0 0 100 1369 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 17 0 4SSO10479 6001 Perkins Road, Oxnard, CA SSS other agency N 0 0 0 Y Y Other (specify below) Air Vac damaged by motor vehicle twice Air Relief Valve (ARV)/ Blow-Off Valve (BOV) n/a replaced air vac 2023 4SSO11365 4 616 02-APR-24 Municipal(Public) 597480 2 18 3 1 0 1 0 0 0 0 5 1429 0 94 5 1 0 0 100 38 60 2 0 0 0 100 16017 0 None 1999 0 5 7 26 50 12 0 0 0 100 0 1 0 4 0 0 0 0 0 5 0 1 2 1 1 0 0 0 0 5 0 376 92 4SSO11392 County Sanitation District No. 8 CS, , Whittier, CA SSS other agency 4SSO11400 County Sanitation District No. 21 CS, , Whittier, CA SSS other agency 4SSO11404 South Bay Cities Sanitation District CS, , Whittier, CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Los Angeles City BS CS 4SSO10502 N Santa Fe Springs City CS 4SSO10430 N La Mirada City CS 4SSO10399 N Industry City CS 4SSO10394 0 0 38 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Added sewer to preventive maintenance program and will inspect and monitor the condition. 2024 4SSO11365 4 616 11-DEC-25 Municipal(Public) 654799 4 15 3 1 0 1 1 0 0 1 6 1419.6 0 95 5 0 0 0 100 35 61 1 0 0 3 100 16017 0 None 1999 0 5 7 26 50 12 0 0 0 100 0 1 0 4 0 0 0 0 0 5 0 1 2 1 1 0 0 0 0 5 0 376 92 4B190107020 San Jose Creek WRP LA County Sanitation District WWTP other agency 4B190107014 Long Beach WRP LA County Sanitation District WWTP other agency 4B190107013 A. K. Warren WRP LA County Sanitation District WWTP other agency Y N Los Angeles City BS CS 4SSO10502 N Santa Fe Springs City CS 4SSO10430 N La Mirada City CS 4SSO10399 N Industry City CS 4SSO10394 0 0 38 Y Y Root Intrusion Gravity Mainline none No recommendations because the overflow was caused by a storm surge. 2025 4SSO11365 4 616 01-APR-26 Municipal(Public) 620616 38 82 14 5 4 8 2 1 0 0 0 3.1 1424.2 0 95 5 0 0 0 100 32 63 2 0 0 3 100 172394 0 None 0 0 5 7 26 50 12 0 0 0 100 0 1 0 4 0 0 0 0 0 5 0 1 2 1 1 0 0 0 0 5 0 376 92 4B190107013 A. K. Warm Water Resource Facility WWTP other agency 4B190107014 Long Beach Water Reclamation Plant WWTP other agency 4B190107020 San Jose Creek Water Reclamation Plant WWTP other agency Y N Los Angeles City BS CS 4SSO10502 N Santa Fe Springs City CS 4SSO10430 N La Mirada City CS 4SSO10399 N Industry City CS 4SSO10394 0 0 38 Y Y Fats, Oil and Grease (FOG) Gravity Mainline Grease accumulation report was forwarded to the Environmental Programs Division for further investigation. Inspected sewer to determine cause, enforcement action against Fats, Oil and Grease (FOG) source, added sewer to Preventive Maintenance Program. 2023 4SSO11366 4 616 28-MAR-24 Municipal(Public) 23387 2 17 2 1 1 2 1 0 0 0 None 1 54 0 95 5 0 0 0 100 0 0 0 0 0 0 0 6654 0 None 0 1 0 47 52 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 4SSO10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency N 0 0 1 Y Y Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO11366 4 616 22-DEC-25 Municipal(Public) 20299 3 10 1 1 1 0 1 0 0 0 None 0 54 0 96 4 0 0 0 100 0 0 0 0 0 0 0 6654 0 None 0 1 0 47 52 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24 .1 4B190104001 001, , Calabasas, CA 91302 WWTP other agency 4B196000037 Discharge Point 1, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency N 0 0 1 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO11366 4 616 19-MAR-26 Municipal(Public) 20299 5 8 1 1 1 0 2 0 0 0 NASCO 0 54.1 0 96 4 0 0 0 100 0 0 0 0 0 0 0 6654 0 None 0 1 0 47 52 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18.5 0 4B190104001 Las Virgenes Municipal Water District, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency 4B196000037 Las Virgenes Municipal Water District, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency N N/A 0 0 1 Y Y Fats, Oil and Grease (FOG) Additionally, Debris-General, Vandalism, Debris-wipes/non-disposables. A large amount of non-disposable wipes was found in the line. Manhole To inspect the segment pipe integrity and make any required maintenance adjustments. Inspect & monitor condition, Mainline will be televised to inspect the segment pipe integrity and make any required maintenance adjustments. 2023 4SSO11367 4 616 28-MAR-24 Municipal(Public) 109925 1 5 1 1 1 2 0 3 0 3 NONE 4 375 8 47 9 4 1 0 100 14 0 18 68 0 0 100 24902 0 None 0 1 15 14 20 35 10 5 0 0 100 0 1 1 2 0 0 0 0 0 4 0 0 0 7 0 0 0 0 0 7 0 159 2 4SSO11367 Ventura City CS, P.O. Box 99 , Ventura, CA 93002 SSS same agency Y N SERVICE AREA 29 4SSO11375 N McGRATH STATE BEACH N/A N/A 0 1 0 Y Debris from Lateral N/A Other (specify below) N/A NONE CCTV CIPP AND REFER TO MASTERPLAN 2024 4SSO11367 4 616 27-AUG-25 Municipal(Public) 110763 1 5 1 1 1 1 0 5 0 5 CWEA 4.4 276 20 62 16 1 1 0 100 14 0 33 53 0 0 100 24902 0 None 0 1 15 14 20 35 10 5 0 0 100 0 1 1 2 0 0 0 0 0 4 0 0 0 7 0 0 0 0 0 7 0 121 2.8 4A560107001 001, , Ventura, CA 93002 SSS same agency Y N SERVICE AREA 29 4SSO11375 N McGRATH STATE BEACH N/A N/A 0 1 0 N Y Debris-General Gravity Mainline N/A CCTV,CIPP and Refer To master Plan. 2025 4SSO11367 4 616 18-MAR-26 Municipal(Public) 110763 1 5 1 1 0 2 0 4 0 5 CWEA 4.4 276 20 62 16 1 1 0 100 14 0 33 53 0 0 100 24902 0 None 0 1 15 14 20 35 10 5 0 0 100 0 1 1 2 0 0 0 0 0 4 0 0 0 7 0 0 0 0 0 7 0 138 10.2 4SSO11367 Ventura City CS, P.O. Box 99 , Ventura, CA 93002 SSS same agency Y N SERVICE AREA 29 4SSO11375 N McGRATH STATE BEACH N/A N/A 0 1 0 N Y Debris-General Pump Station - Controls None CCTV,CIP and Refer to Masterplan 2023 4SSO11368 4 616 21-MAR-24 Municipal(Public) 36000 0 0 0 2 0 0 0 0 0 0 The City of West Hollywood contracts maintenance operations to the County of Los Angeles. The County performs the activities with their staff. Refer to the County's own annual report for information relating to their organization. 0 39 0 82 18 0 0 0 100 0 0 0 0 0 0 0 9884 29 Upper and Lower 1 0 0 1 26 0 65 0 0 8 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 39 4SSO10450 Hyperion Treatment Facility WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline NA Regular Maintenance Operations take care of system. 2024 4SSO11368 4 616 23-DEC-25 Municipal(Public) 36000 0 0 0 2 0 0 0 0 0 0 The City of West Hollywood contracts maintenance operations to the County of Los Angeles. The County performs the activities with their staff. Refer to the County's own annual report for information relating to their organization. 0 39.4 0 82 18 0 0 0 100 0 0 0 0 0 0 0 9884 29 Upper and Lower 1 0 0 1 26 0 65 0 0 8 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26.2 26.2 4b190106002 001, , CA WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline NA Regular Maintenance Operations take care of the system. 2025 4SSO11368 4 616 16-MAR-26 Municipal(Public) 36000 0 0 1 1 0 0 0 0 0 0 The City of West Hollywood contracts maintenance operations to the County of Los Angeles, The County performs the activities with their staff. Refer to the County's own annual report for information relating to their organization. 0 39.4 0 82 18 0 0 0 100 0 0 0 0 0 0 0 10012 0 None 0 0 8 18 11 44 19 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23 0 4b190106002 001, , CA WWTP other agency N 0 0 0 Y Y Root Intrusion Also Fats, Oil, and Grease Other (specify below) No failure points NA Regular Maintenance Operations take care of the system. 2023 4SSO11369 4 616 27-MAR-24 Airport 365 3 8 2 1 1 5 3 2 1 0 1 5 9 80 11 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 20 58 22 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 0 0 4SSO10357 Camarillo Water Reclam. Plant CS, 601 Carmen Drive, Carmarillo, CA 93010 SSS other agency N 0 1 0 Y Y Other (specify below) None Pump Station - Power None None 2024 4SSO11369 4 616 01-JUL-25 Airport 365 2 8 2 1 1 2 3 2 0 0 1 5 9 80 11 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 20 58 22 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 .5 0 4SSO10357 Camarillo Water Reclam. Plant CS, 601 Carmen Dr, Camarillo, CA SSS other agency N 0 1 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2025 4SSO11369 4 616 24-MAR-26 Airport 365 3 8 2 1 0 2 3 1 0 0 1 5 9 80 11 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 20 58 22 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0 5 0 4SSO10357 Camarillo Water Reclam. Plant CS, 601 Carmen Dr, Camarillo, CA SSS other agency N 0 0 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2023 4SSO11370 4 616 02-APR-24 Municipal(Public) 8950 0 2 1 0 0 2 0 0 0 0 0 43 0 69 28 3 0 0 100 0 0 0 0 0 0 0 5309 0 None 0 12 0 35 44 9 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1 4SSO11393 Santa Clarita Valley Sanitation District of Los Angeles County CS, , CA SSS other agency 4SSO11399 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Lancaster CS 6SSO11136 N Palmdale CS 6SSO11137 1 0 1 Y Y Other (specify below) No SSO 2023 Other (specify below) NO SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO11370 4 616 10-DEC-25 Municipal(Public) 17294 4 16 3 1 0 3 0 0 0 0 0 42.3 0 83 16 1 0 0 100 0 0 0 0 0 0 0 5309 0 None 0 12 0 35 44 9 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP other agency 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP other agency Y N Lancaster CS 6SSO11136 N Palmdale CS 6SSO11137 1 0 1 Y Y Other (specify below) No SSO 2024 Other (specify below) No SSO 2024 No SSO 2024 No SSO 2024 2025 4SSO11370 4 616 31-MAR-26 Municipal(Public) 12249 3 19 4 1 1 4 0 0 0 0 0 0 42.3 0 83 16 1 0 0 100 0 0 0 0 0 0 0 3654 0 None 0 12 0 35 44 9 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1 6B190107017 Lancaster Water Reclamation Plant WWTP other agency 6B190107069 Palmdale Water Reclamation Plant WWTP other agency Y N Lancaster CS 6SSO11136 N Palmdale CS 6SSO11137 1 0 1 Y Y Other (specify below) No SSO in 2025 Other (specify below) No SSO in 2025 No SSO in 2025 No SSO in 2025 2023 4SSO11371 4 616 27-MAR-24 Municipal(Public) 2384 2 8 2 1 1 5 3 2 1 0 1 14 40 54 6 0 0 0 100 100 0 0 0 0 0 100 274 0 None 1 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 4SSO10479 1331 Doris Ave, 1331 Doris Alley, Oxnard, CA SSS other agency N 1 0 0 Y Y Other (specify below) None Gravity Mainline no none 2024 4SSO11371 4 616 02-APR-25 Municipal(Public) 2384 2 8 2 1 1 2 3 2 0 0 1 14 40 54 6 0 0 0 100 100 0 0 0 0 0 100 274 0 None 1 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 4SSO10479 1331 Doris Ave. 1331 Doris Alley, Oxnard, CA SSS other agency N 1 0 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2025 4SSO11371 4 616 24-MAR-26 Municipal(Public) 2384 3 8 2 1 0 2 3 1 0 0 1 14 40 54 6 0 0 0 100 100 0 0 0 0 0 100 274 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 14 0 4SSO10479 Oxnard WWTP, 6001 Perkins Road, Oxnard, CA SSS other agency N 0 0 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2023 4SSO11372 4 616 02-APR-24 Municipal(Public) 8952 0 17 2 1 1 2 1 0 0 0 None 1 32 0 90 10 0 0 0 100 100 0 0 0 0 0 100 4280 0 None 0 5 0 55 28 12 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 2 0 10 1 4sso10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency N 0 0 1 Y Y Other (specify below) The causes were rock debris and grease buildup. Manhole was damaged, with the ring and cover shifted by 9 inches, creating an opening for debris. Manhole Yes Going to inspect the sewer using CCTV to determine if further action is needed. Repair or replace defective assets. 2024 4SSO11372 4 616 11-DEC-25 Municipal(Public) 8539 3 10 1 1 1 0 1 0 0 0 None 1.2 31.9 0 90 10 0 0 0 100 100 0 0 0 0 0 100 4280 0 None 0 5 0 55 28 12 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 2 0 10 1 4B190104001 Tapia WRF Las Virgenes MWD WWTP other agency 4B196000037 Tapia WRF Las Virgenes MWD WWTP other agency N 0 0 1 Y Y Other (specify below) no sso in 2024 Other (specify below) N/A N/A N/A 2025 4SSO11372 4 616 26-MAR-26 Municipal(Public) 7940 6 16 3 1 2 4 2 0 0 0 0 2.1 32.1 0 90 10 0 0 0 100 60 40 0 0 0 0 100 2409 0 None 0 5 0 55 28 12 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 1 0 1 0 0 0 0 0 0 2 0 10 1 4B190104001 Las Virgenes Municipal Water District WWTP other agency 4B196000037 Las Virgenes Municipal Water District WWTP other agency N 0 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None The existing preventive maintenance cleaning schedule was changed from 60 days to 30 days frequency. 2023 4SSO11373 4 616 02-APR-24 Municipal(Public) 8400 2 18 3 1 0 1 0 0 0 0 1 12 0 62 38 0 0 0 100 0 0 92 0 0 8 100 759 0 None 0 0 0 43 52 5 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3 1 4SSO10450 LA City BS Hyperion CS SSS other agency N 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Accumulation of rags and grease blocked by damaged liner. Gravity Mainline None Enforcement action against FOG source. Inspected sewer using CCTV to determine cause; damaged liner schedule to be repaired or replace. 2024 4SSO11373 4 616 09-DEC-25 Municipal(Public) 12285 4 15 3 1 1 1 0 0 1 0 .6 11.8 0 62 37 1 0 0 100 2 0 98 0 0 0 100 759 0 None 0 0 0 43 52 5 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3 1 4B190106002 LA City BS Hyperion Water Reclamation Plant WWTP other agency N 0 0 0 Y Y Other (specify below) no sso in 2024 Other (specify below) N/A N/A N/A 2025 4SSO11373 4 616 26-MAR-26 Municipal(Public) 27012 5 17 3 1 1 1 2 1 0 0 0 .6 11.9 0 62 37 1 0 0 100 2 0 98 0 0 0 100 759 0 None 0 0 0 43 52 5 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3 1 4B190106002 Los Angeles Bureau of Sanitation Hyperion CS WWTP other agency N 2 0 0 Y Y Pipe Structural Problem/Failure - Controls Force Main No Spill corrective action: Repaired facilities or replaced. 2023 4SSO11374 4 616 02-APR-24 Municipal(Public) 45666 0 17 2 1 1 2 1 0 0 0 3 132 0 86 13 1 0 0 100 74 10 26 0 0 0 100 16017 0 None 0 58 0 36 6 0 0 0 0 0 100 1 0 0 2 1 0 0 0 0 4 1 0 1 1 0 0 0 0 0 3 0 35 9 4SSO11405 Santa Clarita Valley Sanitation District of Los Angeles County CS, , CA SSS other agency 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS other agency Y N Santa Clarita City CS 4SSO10429 1 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None Inspected Sewer Using CCTV to Determine Cause. Mainline will be put on a 90-day hydro periodic. Inspect & monitor condition. 2024 4SSO11374 4 616 10-DEC-25 Municipal(Public) 39834 3 10 1 1 1 0 1 0 0 0 5.8 123.9 0 84 15 1 0 0 100 57 15 28 0 0 0 100 16017 0 None 0 58 0 36 6 0 0 0 0 0 100 1 0 0 2 1 0 0 0 0 4 1 0 1 1 0 0 0 0 0 3 0 35 9 4A190107023 Valencia WRP Santa Clarita Valley SD of LA County WWTP other agency 4A190107021 Saugus WRP Santa Clarita Valley SD of LA County WWTP other agency Y N Santa Clarita City CS 4SSO10429 1 0 1 Y Y Other (specify below) no sso in 2024 Other (specify below) N/A N/A N/A 2025 4SSO11374 4 616 31-MAR-26 Municipal(Public) 37668 3 19 4 1 1 4 0 0 0 0 0 4.5 122.7 1 84 14 1 0 0 100 43 40 17 0 0 0 100 11325 0 None 0 58 0 36 6 0 0 0 0 0 100 1 0 0 2 1 0 0 0 0 4 1 0 1 1 0 0 0 0 0 3 0 35 9 4A190107021 Saugus Water Reclamation Plant WWTP other agency 4A190107023 Valencia Water Reclamation Plant WWTP other agency Y N Santa Clarity CS 4SSO10429 1 0 1 Y Y Other (specify below) No SSO in 2025 Other (specify below) No SSO in 2025 No SSO in 2025 No SSO in 2025 2023 4SSO11375 4 616 25-MAR-24 Municipal(Public) 765 3 8 2 1 1 5 3 2 1 0 NA 10 0 0 0 0 0 0 0 100 60 40 0 0 0 0 0 308 0 Lower only 3 0 2 98 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 SSo11367 Ventura City CS, P.O. Box 99 , Ventura, CA 93002 SSS other agency N 0 11 0 Y Y Other (specify below) None Pump Station - Power NA NA 2024 4SSO11375 4 616 02-APR-25 Municipal(Public) 765 2 8 2 1 1 2 3 2 0 0 10 0 0 0 0 0 0 0 0 60 40 0 0 0 0 100 308 0 None 3 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 0 0 SSO11367 Ventura City CS, PO BOX 99, Ventura, CA 93002 SSS other agency N 0 11 0 Y Y Pump Station Failure - Mechanical Pump Station - Mechanical n/a New floats. New pump 2025 4SSO11375 4 616 24-MAR-26 Municipal(Public) 765 3 8 2 1 0 2 3 1 0 0 10 0 0 0 0 0 0 0 0 60 40 0 0 0 0 100 308 0 None 0 0 2 98 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 0 0 SSO11367 Ventura City CS, PO BOX 99, Ventura, CA 93002 SSS other agency N 0 0 0 Y Y Other (specify below) One spill was due to a bad pump on STEP system. The other spill was due to a force main failure Other (specify below) Pump and force main n/a Replacement of bad pump. Replacement of section of force main. 2025 8SSO11381 8 616 13-MAR-26 Prison 2 0 0 0 0 0 0 0 0 0 0 n/a 0 2.7 35 25 15 0 0 25 100 0 0 0 0 0 0 0 1 0 Upper and Lower 2.7 0 0 5 55 40 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8SSO11385 City of Chino SSS other agency N 0 0 0 N Y Natural Disaster (specify below) Earthquakes, Floods Gravity Mainline None Facility is Shutdown. No population to create flow 2023 8SSO11382 8 616 01-APR-24 Municipal(Public) 179061 3 6 1 1 6 7 1 3 0 0 4 450 1 80 15 3 1 0 100 0 0 100 0 0 0 100 34274 34274 Lower only 211 5 5 29 32 24 3 1 1 0 100 0 0 1 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 2 0 355 25 8SSO10580 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP other agency N 0 1 6 N Y Fats, Oil and Grease (FOG) Upper Lateral None Routine preventative maintenance, Jetting program along with routine CCTV inspections. Engineering CIP 2024 8SSO11382 8 616 03-JUL-25 Municipal(Public) 188000 2 7 1 1 3 5 5 4 0 0 N/A 3 450 1 80 15 3 1 0 100 0 0 100 0 0 0 100 35100 35100 Lower only 215 5 5 29 32 24 1 1 1 0 100 0 1 1 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 1 0 385 21 8SSO10580 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP other agency N 0 1 6 N Y Fats, Oil and Grease (FOG) Upper Lateral none Routine preventative maintenance, Jetting program along with routine CCTV inspections. Engineering CIP 2023 8SSO11383 8 616 20-MAR-24 Municipal(Public) 178670 0 7 1 1 0 0 4 5 0 1 1 422 1 356 54 11 0 0 422 1 0 0 0 0 0 1 37286 36359 Lower only 288 1 21 42 31 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 404 29 8sso10580 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP same agency N 0 0 7 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Private systems partial blockages responded to by CVWD to prevent, contain , control and correct to protect our community and environment. Other (specify below) Private systems partial blockages none Engineering department updating new sewer model and flow monitoring. Internal Sewer deapartment continuously and regularly conducts vulnerability assesments , all capacity and structural threats and vulnerable collection system assets communicated to Engineering and managment team to develop, address and correct through Capital Improvement projects. FOG, Industrial users, commercial, residentail and private systems assessed and evaluatede for potential threats, vulnerabilities and when issues identified, plans and actions created to correct and/or enforce corrective issues (when necessary fully utilize local and if needed state entities ). 2024 8SSO11383 8 616 10-SEP-25 Municipal(Public) 174405 0 7 1 1 0 0 3 6 0 1 SWRCB Distribution Grade 5-2 SWRCB Water Treatment Grade II-2 SWRCB Water Treatment Grade III-1 1.1 421 1 84 13 2 0 0 100 1 0 0 0 0 0 1 37592 37592 Lower only 276 1 21 42 31 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 407 24 8 362918001 001, , CA WWTP other agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 7 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Private system issues not maintained or owned by CVWD - contain, control, clear and clean up to protect the community and the environment. Ensure proper flow and function of collection system. Other (specify below) Private system issues not maintained or owned by CVWD None Continuous proactive mainline annual cleaning and inspections cycles. Identify, document and correct deficiences through Capital Improvement projects (system resilience, flow and function through vulnerability assessments, continuous annual lining projects, system upsizing (4th ST from Havent o Turner new 36 , etc.etc.) and various realignments.) 2025 8SSO11383 8 616 24-MAR-26 Municipal(Public) 177673 0 7 1 1 0 1 3 5 0 1 NA 1 427 1 356 54 13 0 0 424 1 0 0 0 0 0 1 288 288 Lower only 288 1 21 42 31 0 0 0 0 5 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 372 12 8 362918001 001, , CA Inland Empire Utilities Agency WWTP other agency N NA 0 0 7 Y Y Damage by Others Not Related to Collection System Construction/Maintenance NA Other (specify below) NA NONE Continued proactive sewer system maintenance and capital projects aligned with new sewer master plan to ensure continued positive collection system performance and longevity and address any deficiencies. 2023 9SSO11210 9 616 31-MAR-24 Municipal(Public) 62000 3 5 2 3 1 1 5 3 0 0 17 205 1 88 10 1 0 0 100 10 0 4 86 0 0 100 20751 1 None 0 0 10 40 50 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 1 6 0 0 0 0 0 7 10 224 69 000002951 Encina Wastewater Authority RGP 63, 6200 Avendia Encinas , Carlsbad, CA 92101 WWTP other agency Y N City of Encinitas Wastewater SS010650 N City of Carlsbad SS011209 4 4 0 Y Y Other (specify below) LWD had 0 spills in 2023. Other (specify below) NA NA NA 2024 9SSO11210 9 616 30-OCT-25 Municipal(Public) 62000 4 6 2 4 3 2 5 3 0 0 16.6 205 1 88 10 1 0 0 100 10 0 4 86 0 0 100 20751 1 None 0 0 10 40 50 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 1 6 0 0 0 0 0 7 10 181 76 9 000000030 6200 Avenida Encinas Carlsbad, CA 92011 WWTP other agency Y N City of Encinitas Wastewater SS010650 N City of Carlsbad SS011209 3 4 0 Y Y Other (specify below) LWD had 0 spills in 2024 Other (specify below) N/A N/A N/A 2025 9SSO11210 9 616 16-MAR-26 Municipal(Public) 62000 3 6 2 2 3 2 5 3 0 0 16.6 205 1 88 10 1 0 0 100 10 0 4 86 0 0 100 20799 1 None 0 0 10 40 50 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 1 6 0 0 0 0 0 7 10 210 91 9 000000030 6200 Avenida Encinas Carlsbad, CA 92011 WWTP other agency Y N City of Encinitas Wastewater SS010650 N City of Carlsbad SS011209 N/A 3 4 0 Y Y Other (specify below) LWD Had 0 spills in 2025 Other (specify below) N/A N/a N/A 2023 9SSO11209 9 616 29-MAR-24 Municipal(Public) 86020 1 11 2 1 7 10 5 4 0 6 n/a 4 268 8 79 11 2 0 0 100 10 14 76 0 0 0 100 24124 82 None 2 1 24 46 22 6 1 0 0 0 100 1 4 1 0 0 0 0 0 0 6 1 3 1 0 0 0 0 0 0 5 30 190 72 n/a Encina Wastewater Authority, 6200 Avenida Encinas, Carlsbad, 92011 WWTP other agency Y N Vista Sanitation 9SSO10660 N Vallecitos Water District 9SSO10676 N Leucadia Wastewater District 9SSO11210 N/A 3 0 3 Y Y Debris from Construction n/a Other (specify below) We didn't have any infrastructure failures that caused sewer spills in 2023. none In 2023 Carlsbad lined 23 sewer mains with defects found via CCTV inspection. Staff is currently working on several CIPs to replace and/or upsize several sewer mains throughout the district. Staff is also putting together a list of sewer mains to be rehabbed in 2024. We have an ongoing program to CCTV our lines and generate rehab or replacement projects based on a business risk score. 2024 9SSO11209 9 616 31-MAR-25 Municipal(Public) 86813 1 11 2 2 8 8 10 5 0 0 11 people also have certifications through DWOCP. 4 268 8 79 11 2 0 0 100 10 14 76 0 0 0 100 24193 82 Upper and Lower 2 1 24 46 22 6 1 0 0 0 100 1 4 1 0 0 0 0 0 0 6 1 3 1 0 0 0 0 0 0 5 4 154 30 9 000000030 Encina Water Pollution Control Facility, 6200 Avenida Encinas Carlsbad, CA 92011 WWTP other agency Y N Vista Sanitation 9SSO10660 N Vallecitos Water District 9SSO10676 N Leucadia Wastewater District 9SSO11210 n/a 3 0 3 Y Y Debris-General n/a Manhole n/a none Carlsbad uses data and operator input to continuously improve our collections system. We have CIP program budgets that are funded for ongoing lift station and mainline improvements. In 2024, we completed a lift station upgrade, awarded a contract for a generator replacement, completed capacity improvements in two areas and developed a prioritized, risk-based list of sewer main rehabilitation candidates. We are currently performing flow monitoring to detect I&I and are planning electrical upgrades and pump replacements at several lift stations. We are also in the middle of a sewer master plan update. 2025 9SSO11209 9 616 26-MAR-26 Municipal(Public) 86813 2 9 1 2 6 7 10 4 0 0 9 staff also hold water certifications through the California State DWOCP 6 275 8 79 11 2 0 0 100 10 14 76 0 0 0 100 24193 82 Upper and Lower 2 1 23 46 22 7 1 0 0 0 100 1 4 1 0 0 0 0 0 0 6 1 3 1 0 0 0 0 0 0 5 0 169.7 58.8 9 000000030 Encina Water Pollution Control Facility, 6200 Avenida Encinas, Carlsbad, CA 92011 WWTP other agency Y N Buena Sanitation District 9SSO10700 N City of Vista CS 9SSO10660 N Vallecitos Water District 9SSO10660 N Leucadia Wastewater District 9SSO11210 n/a 3 0 3 Y Y Other (specify below) We did not have any major spills for the reporting period. Other (specify below) We did not have any major spills/infrastructure failures for the reporting period. None. We continue to use data and operator input to monitor and improve our collection system. We have a robust CIP program and completed several projects in 2025 to improve capacity, improve safety, or to replace aging infrastructure. We also completed the design for a new SCADA system and for a project to upsize 2100' of sewer main and rehabilitate 21 manholes. 2023 9SSO11384 9 616 27-MAR-24 Military 9053 0 0 0 0 0 0 0 0 0 0 N/A 0 4 50 25 10 5 5 5 100 0 0 0 0 0 0 0 200 200 Upper and Lower 4 2 18 10 10 10 0 50 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 Point Loma Wastewater Treatment Plant 9192 Topaz Way, San Diego, CA 92123 WWTP other agency 0 N NA NA NA NA NA NA NA NA NA NA N/A 0 0 0 Y Y Debris-wipes/Non-disposables N/A Manhole N/A N/A Inspections and training employees. 2024 9SSO11384 9 616 26-DEC-25 Military 9084 0 3 1 0 0 0 0 0 0 0 N/A 8 3 50 25 10 5 5 5 100 20 10 10 50 8 2 100 175 175 Upper and Lower 3 12 18 10 10 50 30 20 0 0 150 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 3 0 0 E.W. Blom Point Loma Wastewater Treatment Plant 1902 Gatchell Road San Diego CA 92106 WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA 0 0 0 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA Inspections and training employees 2025 9SSO11384 9 616 19-MAR-26 Military 8910 0 3 1 0 0 0 0 0 0 0 N/A 8 3 50 25 10 5 5 5 100 20 10 10 50 8 2 100 175 175 Upper and Lower 3 12 18 10 10 50 30 20 0 0 150 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 3 .5 9 W000000275 Point Loma Wastewater Treatment Plant 1902 Graphell Rd San Diego WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA 0 0 0 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA Inspections and Training 2023 8SSO20032 8 616 01-APR-25 Municipal(Public) 92200 0 5 1 2 0 3 1 0 0 0 N/A 3.3 225 20 80 0 0 0 0 100 20 0 80 0 0 0 100 23500 23500 Lower only 21 5 20 25 25 20 3 2 0 0 100 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 32 32 836C406215 IEUA - RP-5 - 6063 Kimball Ave, Chino Ca WWTP other agency 8362918001 IEUA - Carbon Canyon WWRF - 14950 Telephone Ave, Chino CA WWTP other agency N N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) Pump Station - Power None Contract Services, CCTV system, CIP sewer relining, quarterly FOG program. 2023 8SSO20032 8 616 03-APR-25 Municipal(Public) 91005 0 5 1 2 0 3 0 0 0 0 N/A 3.3 225 20 80 0 0 0 0 0 20 0 80 0 0 0 0 22385 22385 Lower only 21 5 20 25 25 20 3 2 0 0 100 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 29 29 836C406215 IEUA - RP-5 - 6063 Kimball Ave, Chino Ca WWTP other agency 8362918001 IEUA - Carbon Canyon WWRF - 14950 Telephone Ave, Chino CA WWTP other agency N N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) Pump Station - Power None Contract Services, CCTV Systems, CIP sewer relining, quarterly FOG program. 2024 8SSO20032 8 616 01-APR-25 Municipal(Public) 92585 0 5 1 2 0 3 0 1 0 0 N/A 3.3 225 20 80 0 0 0 0 100 20 0 80 0 0 0 100 23577 23577 Lower only 22 5 20 25 25 20 3 2 0 0 100 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 40 40 836C406215 IEUA - 6075 Kimball Ave, Chino CA WWTP other agency 8362918001 IEUA - Carbon Canyon WWRF - 14950 Telephone Ave, Chino CA WWTP other agency N N/A 0 0 3 Y Y Fats, Oil and Grease (FOG) Pump Station - Power None Contract Services, CCTV system, CIP sewer relining, quarterly FOG program. 2025 8SSO20032 8 616 02-APR-26 Municipal(Public) 95495 1 5 1 2 0 3 0 1 0 0 NA 3.3 225 20 80 0 0 0 0 100 20 0 80 0 0 0 100 23590 23590 Lower only 22 5 20 25 25 20 3 2 0 0 100 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 40 40 836C406215 IEUA - 6075 Kimball Ave, Chino CA WWTP other agency 8362918001 IEUA - Carbon Canyon WWRF - 14950 Telephone Ave, Chino CA WWTP other agency N N NA 0 0 3 Y Y Fats, Oil and Grease (FOG) NA Pump Station - Power NA NONE Contract Services, CCTV system, CIP sewer relining, quarterly FOG program. 2023 4SSO11390 4 616 29-MAR-24 Municipal(Public) 35536 25 97 11 2 8 2 0 1 0 27 N/A 0 6 0 9 61 26 4 0 100 0 0 0 0 0 0 0 41 0 None 0 0 0 29 14 1 56 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 2 4SSO10502 LA City Bureau of Sanitation CS, 2714 Media Center Drive, Los Angeles, CA 90065 SSS other agency Y N Beverly Hills 4SSO10370 N West Hollywood 4SSO11368 N LA City Bureau of Sanitation 4SSO10502 N/A 0 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 4SSO11390 4 616 02-DEC-25 Municipal(Public) 35822 25 96 10 3 5 3 0 1 0 25 N/A 0 6.2 0 9 61 26 4 0 100 0 0 0 0 0 0 0 41 0 None 0 0 0 29 14 1 56 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4.2 .8 4B190106002 Hyperion Water Reclamation Plant, 12000 Vista Del Mar, Playa Del Rey, CA 90293 WWTP other agency Y N Beverly Hills 4SSO10370 N West Hollywood 4SSO11368 N LA City Bureau of Sanitation 4SSO10502 N/A 0 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 6SSO11393 6B 616 29-MAR-24 Municipal(Public) 212100 7 32 4 2 0 0 0 0 0 0 N/A 0 75 0 2 52 28 18 0 100 0 0 0 0 0 0 0 339 0 None 0 1 19 40 8 32 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 16 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP same agency 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Lancaster 6SSO11136 N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 2 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 6SSO11393 6B 616 01-APR-25 Municipal(Public) 211371 5 31 5 2 0 1 2 0 0 8 N/A 0 75.3 0 2 52 28 18 0 100 0 0 0 0 0 0 0 339 0 None 0 1 19 40 8 32 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 73.9 17.1 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP same agency 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Lancaster 6SSO11136 N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 2 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 6SSO11393 6B 616 01-APR-26 Municipal(Public) 216907 9 31 5 2 0 0 1 1 0 6 N/A 0 75.3 0 2 52 28 18 0 100 0 0 0 0 0 0 0 339 0 None 0 7 18 37 8 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20.4 14.7 6B190107017 Lancaster Water Reclamation Plant, 1865 W Ave D , Lancaster, CA 93534 WWTP same agency 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Lancaster 6SSO11136 N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 2 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 6SSO11399 6B 616 29-MAR-24 Municipal(Public) 136920 7 32 4 2 0 0 0 0 0 0 N/A 0 49 0 2 59 27 12 0 100 0 0 0 0 0 0 0 183 0 None 0 0 15 20 25 40 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22 12 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 6SSO11399 6B 616 01-APR-25 Municipal(Public) 136911 5 31 5 2 0 1 2 0 0 8 N/A 0 48.5 0 2 59 27 12 0 100 0 0 0 0 0 0 0 183 0 None 0 3 14 20 24 39 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 27.4 17.4 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 6SSO11399 6B 616 01-APR-26 Municipal(Public) 137639 9 31 5 2 0 0 1 1 0 6 N/A 0 50.1 0 2 57 30 11 0 100 0 0 0 0 0 0 0 183 0 None 0 3 14 20 24 39 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15.5 19.1 6B190107069 Palmdale Water Reclamation Plant, 39300 30th St E & Ave P Street, Palmdale, CA 93550 WWTP same agency Y N Palmdale 6SSO11137 N Unincorporated North Co. Area CS 4SSO11370 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 4SSO11403 4 616 29-MAR-24 Municipal(Public) 11431 25 97 11 2 8 2 0 1 0 27 N/A 1 33 0 85 15 0 0 0 100 98 0 2 0 0 0 100 12 0 None 0 0 0 0 0 0 0 0 0 100 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 42 5 4SSO11388 County Sanitation District Joint Outfall CS, , Whittier, CA SSS same agency Y N Signal Hill 4SSO10433 N/A 0 0 2 Y Y Other (specify below) Debris-General, Other Other (specify below) Manhole, Gravity Mainline N/A In the 2022-2023 Fiscal Year, LACSD awarded construction contracts for sewer rehabilitation and relief projects in the amount of $94.4M. These projects correspond to over 45 miles of sewer. LACSD has projected a value of approximately $176.6M for awarded construction contracts in the 2023-2024 Fiscal Year for the rehabilitation and relief of approximately 60 miles of sewer. These values represent all LACSD collection systems. See Attachment for additional spill corrective actions. 2024 4SSO11403 4 616 02-DEC-25 Municipal(Public) 11448 25 96 10 3 5 3 0 1 0 25 N/A .2 32.8 0 85 15 0 0 0 100 98 0 2 0 0 0 100 12 0 None 0 0 0 0 100 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 35.9 5.1 4B190107013 AK Warren Water Resource Facility, 24501 S Figueroa St, Carson, CA 90745 WWTP same agency Y N Signal Hill 4SSO10433 N/A 0 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 4SSO11403 4 616 01-APR-26 Municipal(Public) 11421 27 97 9 3 8 2 0 1 0 32 N/A .2 32.8 0 85 15 0 0 0 100 98 0 2 0 0 0 100 12 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 1 0 28.2 6.7 4B190107013 Warren Water Resource Facility WWTP same agency Y N Signal Hill 4SSO10433 N/A 0 0 2 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 4SSO11405 4 616 29-MAR-24 Municipal(Public) 275655 7 32 4 2 0 0 0 0 0 0 N/A 6 37 0 0 48 48 4 0 100 62 0 18 20 0 0 100 162 0 None 0 0 12 21 67 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 17 9 4A190107021 Saugus Water Reclamation Plant, 26200 Springbrook Avenue, Saugus, CA 91350 WWTP same agency 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Santa Clarita 4SSO10429 N Unincorporated North Co. Area CS 4SSO11370 N/A 12 3 18 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 4SSO11405 4 616 01-APR-25 Municipal(Public) 272914 5 31 5 2 0 1 2 0 0 8 N/A 6.1 38.8 0 0 47 50 3 0 100 62 0 18 20 0 0 100 162 0 None 0 1 12 21 66 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 15.6 15.3 4A190107021 Saugus Water Reclamation Plant, 26200 Springbrook Avenue, Saugus, CA 91350 WWTP same agency 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Santa Clarita 4SSO10429 N Unincorporated North Co. Area CS 4SSO11370 N/A 12 3 20 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 4SSO11405 4 616 01-APR-26 Municipal(Public) 273205 9 31 5 2 0 0 1 1 0 6 N/A 6.1 38.8 0 0 47 50 3 0 100 62 0 18 20 0 0 100 162 0 None 0 1 12 21 66 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 19.8 8.5 4A190107021 Saugus Water Reclamation Plant, 26200 Springbrook Avenue, Saugus, CA 91350 WWTP same agency 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Santa Clarita 4SSO10429 N Unincorporated North Co. Area CS 4SSO11370 N/A 12 3 20 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 4SSO11406 4 616 23-DEC-25 Municipal(Public) 4560 0 1 0 2 1 0 1 0 0 0 0 2 10 10 90 0 0 0 0 100 10 70 20 0 0 0 100 1776 0 None 0 0 0 10 90 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 4 0 0 0 0 0 0 4 0 10 0 4A560105001 001, , Oxnard, CA 93033 WWTP other agency N N N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 2 0 N Y Other (specify below) There were no SSO's in calendar year 2023. Other (specify below) There were no system failures in calendar year 2023. 0 No system deficiencies currently. 2024 4SSO11406 4 616 23-DEC-25 Municipal(Public) 4560 2 1 0 2 1 0 1 0 0 0 0 2 10 10 90 0 0 0 0 100 10 70 20 0 0 0 100 1776 0 None 0 0 0 10 90 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 4 0 0 0 0 0 0 4 0 10 0 4A560105001 6001 Perkins Rd. Oxnard, CA 93033 WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 1 0 N Y Other (specify below) There were no system failures in calendar year 2024. Other (specify below) There were no system failures in calendar year 2024. 0 No system deficiencies currently. 2025 4SSO11406 4 616 13-MAR-26 Municipal(Public) 5011 2 1 0 2 1 0 1 0 0 0 N/A 2 10 10 90 0 0 0 0 100 10 70 20 0 0 0 100 1776 0 None 0 0 0 10 90 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 4 0 0 0 0 0 0 4 0 10 0 4A560105001 6001 Perkins Rd. Oxnard, CA 93033 WWTP other agency N N 0 0 N/A 0 1 0 N Y Other (specify below) There were no system failures in calendar year 2025 Other (specify below) There were no system failures in calendar year 2025 None No system deficiencies currently. 2023 4SSO11407 4 616 02-APR-24 Municipal(Public) 8872 1 13 2 1 0 1 0 0 0 0 1 34 0 80 20 0 0 0 100 100 0 0 0 0 0 100 3517 0 None 0 0 5 55 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 22 1 4SSO10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency N 0 0 0 Y Y Other (specify below) No SSO in 2023 Other (specify below) No SSO in 2023 n/a n/a 2024 4SSO11407 4 616 22-DEC-25 Municipal(Public) 8028 3 10 1 1 1 0 1 0 0 0 .3 34 0 80 20 0 0 0 100 100 0 0 0 0 0 100 3517 0 None 0 0 5 55 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 19.1 0 4B190104001 001, , Calabasas, CA 91302 SSS other agency 4B196000037 Discharge Point 1, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency N 0 0 0 Y Y Other (specify below) No SSO in 2024 Other (specify below) No SSO in 2024 N/A N/A 2025 4SSO11407 4 616 30-MAR-26 Municipal(Public) 8029 6 16 3 1 2 4 2 0 0 0 NASCO .3 34 0 80 20 0 0 0 100 100 0 0 0 0 0 100 3517 0 None 0 0 5 55 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 15.6 .1 4B190104001 Las Virgenes Municipal Water District, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency 4B196000037 Las Virgenes Municipal Water District, 731 Malibu Canyon Road, Calabasas, CA 91302 WWTP other agency N 4 0 0 Y Y Other (specify below) N/A, No SSOs in 2025 Other (specify below) N/A, No SSOs in 2025 N/A, No SSOs in 2025 N/A, No SSOs in 2025 2023 4SSO11388 4 616 29-MAR-24 Municipal(Public) 4719235 25 97 11 2 8 2 0 1 0 27 N/A 38 1186 0 3 36 37 24 0 100 3 8 36 27 26 0 100 6494 0 None 0 1 11 19 29 32 8 0 0 0 100 0 17 5 9 10 1 0 0 0 42 0 2 0 0 1 0 0 0 0 3 2 668 254 4B190107014 Long Beach Water Reclamation Plant WWTP same agency 4B190107020 San Jose Creek Water Reclamation Plant WWTP same agency 4B190107016 Whittier Narrows Water Reclamation Plant WWTP same agency 4B190107013 Warren Water Resource Facility WWTP same agency Y N Alhambra 4SSO10362 N Arcadia 4SSO10363 N Artesia 4SSO10364 N Azusa 4SSO10365 N Baldwin Park 4SSO10366 See Attachment 89 11 706 Y Y Other (specify below) Rainfall Exceeded Design (I and I), Operator Error, Damage by Others Not Related to Collection System Construction/Maintenance, FOG, Vandalism, Debris-General, Other Other (specify below) Manhole, Gravity Mainline, Force Main N/A In the 2022-2023 Fiscal Year, LACSD awarded construction contracts for sewer rehabilitation and relief projects in the amount of $94.4M. These projects correspond to over 45 miles of sewer. LACSD has projected a value of approximately $176.6M for awarded construction contracts in the 2023-2024 Fiscal Year for the rehabilitation and relief of approximately 60 miles of sewer. These values represent all LACSD collection systems. See Attachment for additional spill corrective actions. 2024 4SSO11388 4 616 01-APR-25 Municipal(Public) 4732441 25 96 10 3 5 3 0 1 0 25 N/A 38.3 1187.5 0 3 36 36 25 0 100 3 8 36 26 27 0 100 6494 0 None 0 3 11 18 28 31 8 1 0 0 100 0 17 5 9 10 1 0 0 0 42 0 2 0 0 1 0 0 0 0 3 1.6 632.7 298 4B190107014 Long Beach Water Reclamation Plant WWTP same agency 4B190107020 San Jose Creek Water Reclamation Plant WWTP same agency 4B190107016 Whittier Narrows Water Reclamation Plant WWTP same agency 4B190107013 Warren Water Resource Facility WWTP same agency Y N Alhambra 4SSO10362 N Arcadia 4SSO10363 N Artesia 4SSO10364 N Azusa 4SSO10365 N Baldwin Park 4SSO10366 See Attachment 89 11 712 Y Y Other (specify below) Rainfall Exceeded Design (I and I), Debris-General, Air Relief Valve (ARV)/Blow-Off Valve (BOV) Failure, Other (Landslide Movement) Other (specify below) Force Main, Manhole, Air Relief Valve (ARV)/Blow-Off Valve (BOV) NA In the 2023-2024 Fiscal Year, LACSD awarded construction contracts for sewer rehabilitation and relief projects in the amount of $127.7M. These projects correspond to approximately 60 miles of sewer. LACSD has projected a value of approximately $141.6M for awarded construction contracts in the 2024-2025 Fiscal Year for the rehabilitation and relief of over 40 miles of sewer. These values represent all LACSD collection systems. See Attachment for additional spill corrective actions. 2025 4SSO11388 4 616 01-APR-26 Municipal(Public) 4753639 27 97 9 3 8 2 0 1 0 32 N/A 38.3 1187.9 0 3 36 37 24 0 100 3 8 36 26 27 0 100 6494 0 None 0 5 11 18 28 30 8 0 0 0 100 0 2 2 14 13 6 0 0 0 37 0 0 0 2 5 0 0 0 0 7 2.3 608.5 357.2 4B190107014 Long Beach Water Reclamation Plant WWTP same agency 4B190107020 San Jose Creek Water Reclamation Plant WWTP same agency 4B190107016 Whittier Narrows Water Reclamation Plant WWTP same agency 4B190107013 Warren Water Resource Facility WWTP same agency Y N Alhambra 4SSO10362 N Arcadia 4SSO10363 N Artesia 4SSO10364 N Azusa 4SSO10365 N Baldwin Park 4SSO10366 See Attachment 89 11 714 Y Y Other (specify below) Natural Disaster, Air Relief Valve (ARV)/Blow-Off Valve (BOV) Failure, Flow Exceeded Capacity, Rainfall Exceeded Design (I and I), Pipe Structural Problem/Failure - Controls Other (specify below) Force Main, Manhole, Air Relief Valve (ARV)/Blow-Off Valve (BOV), Vacuum Relief Valve, NA In the 2024-2025 Fiscal Year, LACSD awarded construction contracts for sewer rehabilitation and relief projects in the amount of $97.1M. These projects correspond to over 45 miles of sewer. LACSD has projected a value of approximately $139.2M for awarded construction contracts in the 2025-2026 Fiscal Year for the rehabilitation and relief of over 30 miles of sewer. These values represent all LACSD collection systems. See Attachment for additional spill corrective actions. 2023 5SSO11409 5S 616 31-OCT-24 Municipal(Public) 5220 6 0 3 1 0 0 0 0 0 0 N/A 4 14.3 48 32 20 0 0 0 100 6 4 90 0 0 0 100 1439 0 None 0 5 26 26 43 0 0 0 0 0 100 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 .5 .5 5SSO11409 City of Turlock CS WWTP other agency N N/A 0 0 0 N Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A N/A 2024 5SSO11409 5S 616 18-MAR-25 Municipal(Public) 5220 6 0 3 1 0 1 0 0 0 0 N/A 4 14.3 48 32 20 0 0 0 100 6 4 90 0 0 0 100 1439 0 None 0 5 26 26 43 0 0 0 0 0 100 1 0 2 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 4 .5 .5 5SSO11409 City of Turlock CS WWTP other agency N N N/A N/A N/A 0 0 0 N Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A N/A 2025 5SSO11409 5S 616 20-MAR-26 Municipal(Public) 5220 0 3 1 1 0 0 0 0 0 0 N/A 4 14.3 48 32 20 0 0 0 100 6 4 90 0 0 0 100 1439 0 None 0 5 26 26 43 0 0 0 0 0 100 1 0 2 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 4 .2 .2 5SSO11409 City of Turlock CS WWTP other agency N N N/A N/A N/A 0 0 0 N Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A N/A 2023 3SSO11408 3 616 29-MAR-24 Municipal(Public) 44218 2 7 1 1 2 1 0 0 0 0 6 113 24 56 16 4 0 0 0 59 1 40 0 0 0 0 0 0 None 0 0 7 0 0 0 0 0 0 93 100 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 4 7 0 23 1 3 350100001 2690 San Juan Hollister, CA, 95023 WWTP same agency Y N San Juan Oaks Phase 1 San Juan Oaks Circle San Benito, CA, 95023 3 35C403173 3 4 3 N Y Debris-General Gravity Mainline None Capital Improvement Program, residential education,and FOG pretreatment program. 2024 3SSO11408 3 616 20-MAY-25 Municipal(Public) 43040 2 7 1 1 2 1 0 0 0 0 7 120 21 57 16 4 0 2 100 63 1 36 0 0 0 100 12659 0 None 0 0 7 0 0 0 0 0 0 93 100 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 4 7 0 26 10 3 350100001 2690 San Juan Hollister, CA, 95023 WWTP same agency Y N San Juan Oaks Phase 1 San Juan Oaks Circle San Benito, CA, 95023 3 35C403173 N Sunnyslope County Water District 351000001 5 4 3 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a n/a Ongoing repair and capital improvements 2025 3SSO11408 3 616 30-MAR-26 Municipal(Public) 42728 1 8 1 1 2 1 0 0 0 0 6 114 24 56 16 4 0 0 0 59 1 40 0 0 0 0 0 0 None 0 0 7 0 0 0 0 0 0 93 100 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 4 7 0 65 78 3 350100001 305.50 San Benito River HA, , CA WWTP same agency N N San Juan Oaks Phase 1 San Juan Oaks Circle San Benito, CA, 95023 3 35C403173 3 4 3 Y Debris-General Gravity Mainline None No system deficiencies at this time. 2023 5SSO11458 5S 616 27-MAR-24 Municipal(Public) 3712 3 3 1 1 0 0 0 0 0 0 Operators have CA WWTP Operator certifications. 4 11 55 32 13 0 0 0 100 28 50 22 0 0 0 100 1227 5 Upper and Lower 0 5 40 10 45 0 0 0 0 0 100 0 2 0 1 0 0 0 0 0 3 1 1 1 0 0 0 0 0 0 3 1 2 1 5A580103001 City of Wheatland WWTP, 800 Malone Avenue, Wheatland, CA 95692 WWTP same agency N N N/A 1 1 1 Y Y Fats, Oil and Grease (FOG) N/A Upper Lateral N/A N/A CIP 2023 5SSO11451 5S 616 27-MAR-24 Municipal(Public) 252 0 3 1 0 1 3 0 0 0 4 None 0 4 100 0 0 0 0 0 100 0 0 0 0 0 0 0 106 0 None 0 0 20 80 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 4 4 5SSO11451 Fairway Pines CS, , Sutter Creek, CA 95685 WWTP same agency N/A N/A N/A N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 0 0 0 Y Y Root Intrusion N/A Upper Lateral N/A N/A Flush Quarterly 2024 5SSO11451 5S 616 23-DEC-25 Municipal(Public) 252 0 3 1 0 1 3 0 0 0 4 N/A 0 4 100 0 0 0 0 0 100 0 0 0 0 0 0 0 106 0 None 0 0 20 80 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 100 0 4 4 5B031026001 Mace Meadows Leachfield/Fairway Pines Leachfield, 17270 South View Dr, Pioneer, CA 95666 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Root Intrusion N/A Upper Lateral N/A N/A Flush quarterly 2025 5SSO11451 5S 616 30-MAR-26 Municipal(Public) 252 0 3 1 0 1 3 0 0 0 4 N/A 0 4 100 0 0 0 0 0 100 0 0 0 0 0 0 0 106 0 None 0 0 20 80 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 100 0 4 4 5B031026001 Mace Meadows Leachfield/Fairway Pines Leachfield, Creekside , Pioneer, CA 95666 SSS same agency N N/A 0 0 0 Y Y Root Intrusion N/A Upper Lateral N/A N/A Flush quarterly 2023 4SSO11439 4 616 02-APR-24 Municipal(Public) 2025 2 17 2 1 1 2 1 0 0 0 0 1 15 0 96 4 0 0 0 100 100 0 0 0 0 0 100 674 0 None 0 16 0 12 72 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 26 1 4SSO10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency N 0 0 0 Other (specify below) No SSO 2023 Other (specify below) No SSO 2023 No SSO 2023 No SSO 2023 2024 4SSO11439 4 616 31-MAR-26 Municipal(Public) 1727 6 16 3 1 2 4 2 0 0 0 NASCO .2 15.6 0 96 4 0 0 0 100 100 0 0 0 0 0 100 674 0 None 0 16 0 12 72 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 8.6 .1 4SSO10460 Las Virgenes MWD, 731 Malibu Canyon Road, Calabasas, California SSS other agency N 0 0 1 Y Y Other (specify below) No SSO 2025 Other (specify below) No SSO 2025 No SSO 2025 No SSO 2025 2025 4SSO11439 4 616 31-MAR-26 Municipal(Public) 1727 6 16 3 1 2 4 2 0 0 0 NASCO .2 15.6 0 96 4 0 0 0 100 100 0 0 0 0 0 100 674 0 None 0 16 0 12 72 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 8.6 .1 4B190104001 Las Virgenes Municipal Water District, 731 Malibu Canyon Road, Calabasas, California SSS same agency 4B196000037 Discharge Point 1, 731 Malibu Canyon Road, Calabasas, CA 91302 SSS same agency N 0 0 1 Y Y Fats, Oil and Grease (FOG) NO SSO 2025 Gravity Mainline NO SSO 2025 NO SSO 2025 NO SSO 2025 2023 5SSO11460 5S 616 27-MAR-24 Municipal(Public) 588 0 3 1 0 1 3 0 0 0 0 0 4 15 80 20 0 0 0 0 100 100 0 0 0 0 0 100 171 0 None 0 0 10 50 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 4 0 0 0 0 0 6 0 8 8 5SSO11460 WWTP same agency N N/A N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A Jetting 2024 5SSO11460 5S 616 23-DEC-25 Municipal(Public) 588 0 3 1 0 1 3 0 0 0 4 N/A 4 15 80 20 0 0 0 0 100 100 0 0 0 0 0 100 171 0 None 0 0 10 50 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 4 0 0 0 0 0 6 0 8 8 5B030104001 Sutter Creek WWTP, 340 Mahoney Mill Rd., Sutter Creek, CA 95685 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A Jetting 2025 5SSO11460 5S 616 30-MAR-26 Municipal(Public) 588 0 3 1 0 1 3 0 0 0 4 N/A 4 15 80 20 0 0 0 0 100 100 0 0 0 0 0 100 171 0 None 0 0 10 50 40 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 4 0 0 0 0 0 6 0 8 8 5B030104001 Sutter Creek WWTP, 18 Main Street, Sutter Creek, CA 95685 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A N/A Jetting 2024 1SSO11454 1 616 17-MAR-25 Municipal(Public) 6000 3 4 1 1 1 0 0 0 0 0 0 0 46 60 10 15 10 5 0 100 0 0 0 0 0 0 0 3231 0 None 0 0 0 40 35 25 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 7 35 20 1B84029OMEN 300 plant rd, Ukiah, CA ,95482 WWTP same agency N N 1B84029OMEN N 0 0 N 0 0 N 0 0 N 0 0 0 17 3 2 N Y Root Intrusion 0 Upper Lateral 0 Spot repair root intrusion 2025 1SSO11454 1 616 04-MAR-26 Municipal(Public) 6000 3 4 1 1 1 0 0 0 0 0 0 0 46 60 10 15 10 5 0 100 0 0 0 0 0 0 0 3231 0 None 0 0 0 40 35 25 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 7 39 17 1B84029OMEN City of Ukiah CS 300 Plant Rd, Ukiah Ca 95482 WWTP same agency N N N 0 0 N 0 0 N 0 0 N 0 0 0 17 3 2 N Y Root Intrusion 0 Upper Lateral 0 0 Spot repair root intrusion 2023 3SSO11472 3 616 26-MAR-24 Prison 3600 0 7 2 1 0 0 0 0 0 2 N/A 0 4 0 0 100 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3sso10335 Sewage Treatment Plant CS, P.O. Box 156 , Soledad, CA 93960 SSS same agency N N/A 0 0 0 N Y Vandalism (specify below) Inmates putting everything down the drain. Gravity Mainline N/A N/A No identified system deficiencies. 2023 2SSO11410 2 616 02-APR-24 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 none 1 1 100 0 0 0 0 0 0 100 0 0 0 0 0 0 16 1 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 2sso10103 castro valley sanitary district SSS other agency N none 1 0 1 N Y Other (specify below) no major spills on this system Other (specify below) clean out none system is current in design review for upgrade/replacement 2024 2SSO11410 2 616 23-DEC-25 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 16 1 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 2sso10103 castro valley sanitary district SSS other agency N n/a 1 0 1 N Y Other (specify below) no reportable spills on this system Other (specify below) no known failure points none none 2025 2SSO11410 2 616 25-MAR-26 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 n/a 1.2 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 16 1 Upper and Lower 1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 0 0 2SSO10103 Castro Valley Sanitary District SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A n/a 1 0 1 N Y Other (specify below) There were no spills during this period. Other (specify below) There were no failure points in this system during this period. none none 2023 2SSO11411 2 616 02-APR-24 Park (Day Use) 150 0 5 1 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 4 4 Lower only 0 0 30 0 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 2sso10140 31568 MacDonald Way, Hayward CA 94544 SSS other agency N 1 0 0 N Y Other (specify below) no reportable SSO's on this system Other (specify below) This system has not failed this reporting period none none 2024 2SSO11411 2 616 18-DEC-25 Park (Day Use) 150 0 5 1 1 0 0 0 0 0 0 none 0 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 4 4 Lower only 0 0 30 0 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2SSO10140 31568 MacDonald Way, Hayward CA 94544 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 1 0 0 N Y Other (specify below) no reportable spills on this system Other (specify below) This system has not failed this reporting period none none 2025 2SSO11411 2 616 25-MAR-26 Park (Day Use) 150 0 5 1 1 0 0 0 0 0 0 none .3 .8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 4 4 Lower only 0 0 30 0 70 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2SSO10140 31568 MacDonald Way, Haywad CA 94544 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 1 0 0 N Y Other (specify below) No reportable spills on this system Other (specify below) This system has not failed this reporting period none none 2024 2SSO11413 2 616 26-JAN-26 Park (w/Campground) 1100 0 5 1 1 0 0 0 0 0 0 none 2 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 44 44 Upper and Lower 2 10 0 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 6 0 1 1 2SSO11413 Del Valle Regional Park CS, 2950 Peralta Court, Oakland, CA 94605 WWTP same agency N N N none none N none none N none none N none none none 0 0 0 N Y Other (specify below) There were no spills from this system, but we can't certify this report without an entry in number 15. Other (specify below) There were no infrastructure failure points on this system, but we can't certify this report without an entry in number 16. none none 2025 2SSO11413 2 616 25-MAR-26 Park (w/Campground) 1100 0 5 1 1 0 0 0 0 0 0 NONE 1.3 2.5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 44 44 Upper and Lower 2 10 0 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 6 0 1 1 2SSO11413 Del Valle Regional ParkCS, 2950 Peralta Court, Oakland Ca 94605 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A NONE 0 0 0 N Y Other (specify below) There were no spills from this system during this period. Other (specify below) There were no infrastructure failure points on this system during this period. NONE NONE 2023 8SSO11418 8 616 28-MAR-24 Municipal(Public) 45000 1 3 2 1 1 2 0 0 0 0 N/A 0 140 9 80 10 1 0 0 100 0 0 0 0 0 0 0 15086 0 None 0 2 8 35 50 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51 4 8SSO10617 23650 Hemlock Ave., Moreno Valley, 23650 Hemlock Avenue, Moreno Valley, CA 92557 WWTP same agency N 0 0 0 Y Y Debris-Rags Gravity Mainline 0 Replacement of old gravity sewer mains through CIP projects 2024 8SSO11418 8 616 16-MAR-26 Municipal(Public) 45000 2 3 2 1 1 2 0 0 0 0 n/a 0 140 9 80 10 1 0 0 100 0 0 0 0 0 0 0 15086 0 None 0 2 8 35 50 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 86 3.5 8SSO10617 23650 Hemlock Ave. Moreno Valley, WWTP same agency N 0 0 0 Y Y Debris from Construction Caltrans Asphalt Project Gravity Mainline CCTV on failure points, Replacement of Old Gravity sewer mains through CIP project. 2025 8SSO11418 8 616 16-MAR-26 Municipal(Public) 45000 2 3 2 1 1 2 0 0 0 0 n/a 0 140 9 80 10 1 0 0 100 0 0 0 0 0 0 0 15086 0 None 0 2 8 35 50 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 76 5 8SSO10617 23650 Hemlock Ave. Moreno Valley, WWTP same agency N 0 0 0 Y Y Debris-Rags Gravity Mainline none adding areas of system deficiencies to CIP list for lines to be upgraded. 2025 5SSO20068 5F 616 13-JUL-26 Municipal(Public) 17200 3 10 2 1 0 0 0 0 0 0 N/A 1.2 43.3 49 33 17 1 0 0 100 0 0 0 100 0 0 100 4000 4000 Lower only 22.7 1 19 11 0 0 0 0 0 69 100 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 0 11.4 11.4 5SSO20068 City of Coalinga waste water treatment Plant 30500 Jayne Ave, Coalinga, Ca. SSS same agency N N/A 1 0 2 N Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 1SSO11419 1 616 12-FEB-25 Municipal(Public) 16984 3 10 2 1 1 0 1 0 0 0 One employee maintains a Grade III Wastewater Treatment Plant Operator Certification from the State Water Resources Control Board. 18 78 70 20 10 0 0 0 100 60 20 20 0 0 0 100 6613 0 None 0 0 5 15 80 0 0 0 0 0 100 0 0 0 5 0 0 0 0 0 5 0 2 7 14 0 0 0 0 0 23 5 12.4 1 1B82151OHUM City of Eureka SSS other agency 1B82151OHUM City of Eureka WWTP other agency N 1 4 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance The District did not experience any Major Spills during 2023. The biggest contributing factor to spills during 2023 was damage caused by others not related to collection system construction/maintenance. Gravity Mainline HCSD has no ongoing spills. All acute spills are known, and do not require ongoing investigations. The District continuously cleans, cameras and works to address I/I throughout the collection system. The District's CCTV system experienced several failures during 2023 and a new CCTV system was delivered to the District in February 2024. Through a change in valving, flow was diverted away from a portion of the gravity system feeding one sewer lift station to minimize surcharging during storm events and onto a different lift station. This requires additional pumping but reduces surcharging and therefore the probability of SSO. Continuous systematic Investigation of sources of I/I for future repairs. 2024 1SSO11419 1 616 24-FEB-25 Municipal(Public) 16984 3 13 3 2 0 0 1 0 0 0 One employee maintains a Grade III Wastewater Treatment Plant Operator Certification from the State Water Resources Control Board. 18 78 70 20 10 0 0 0 100 60 20 20 0 0 0 100 6619 6619 Lower only 31.3 0 5 15 80 0 0 0 0 0 100 0 0 0 5 0 0 0 0 0 5 0 2 7 14 0 0 0 0 0 23 5 12.9 1.3 1B82151OHUM City of Eureka, CA SSS other agency 1B82151OHUM City of Eureka, CA WWTP other agency N 1 4 0 Y Y Rainfall Exceeded Design, I and I (Separate Collection System Only) HCSD experienced one Major Spill in 2024. On 12/29/2024, a spill occurred from 5:00 AM to 11:30 AM. Appearance point #1 at 1060 Hoover Street pump station when the amount of flow due to a high rain event began to overwhelm the pumps. The District's recovery efforts used a vac-truck and sandbags to control the spill. It was estimated that 19,500 gallons of waste water escaped the manhole in total and was contained by sandbags. The Vac-Truck took 9 loads and was able to recover 18,450 gallons of the spill. Appearance Point #2: This spill originated near 2820 North Street and occurred from 6:00 AM to 11:00 AM. It was estimated that 1,500 gallons of waste water escaped the manhole in which 0 gallons were recovered. Appearance Point #3: This spill originated near 3383 Park St. and occurred from 6: AM to 8:30 AM. It was estimated 750 gallons of wastewater escaped the manhole in which 0 gallons were recovered. Other (specify below) The amount of flow due to a high rain event, overwhelmed the pumps at a District pump station. HCSD has no ongoing spills. All acute spills are known, and do not require ongoing investigations. The District continuously cleans, cameras and works to address I/I throughout the collection system. A new CCTV system was delivered to the District in February of 2024. The District is focusing on smoke testing in the spill area served by the lift station referenced above to address any I/I issues. A new higher flow capacity pump was installed at the Hoover Street pump station after the storm event on 12/29/2024. Another storm event of similar size occurred after the installation of the new pump, and the system handled the increased flow with no spills. Through a change in valving, flow was diverted away from a portion of the gravity system feeding one sewer lift station to minimize surcharging during storm events and onto a different lift station. This requires additional pumping but reduces surcharging and therefore the probability of SSO. Continuous systematic investigation of sources of I/I for future repairs. 2025 1SSO11419 1 616 26-MAR-26 Municipal(Public) 16539 4 11 2 3 0 2 1 0 0 0 One employee maintains a Grade III Wastewater Treatment Plant Operator Certification from the State Water Resources Control Board. 18 78 70 20 10 0 0 0 100 60 20 20 0 0 0 100 6633 6633 Lower only 31.3 0 5 15 80 0 0 0 0 0 100 0 0 0 5 0 0 0 0 0 5 0 2 7 14 0 0 0 0 0 23 5 12.4 1 1B82151OHUM City of Eureka SSS other agency 1B82151OHUM City of Eureka WWTP other agency N 1 4 0 Y Y Flow Exceeded Capacity (Separate Collection System Only) A lift station serving an area approximately 750 acres of residential and commercial properties became overwhelmed by intense rainfall and could not keep pace with flow. The lift station serves approximately 1,895 service connections. Pump Station - Mechanical The spill point is the lift station that became overwhelmed by storm related I/I. The failure point(s) are throughout the 750 acres where nearly 2,000 connections are served. The mechanical option was selected because the pumps were mechanically overwhelmed by the physical flow. The pumps did not fail, they could not keep up. Continuous systematic Investigation of sources of I/I for future repairs. The District is systematically monitoring flow through sections of the service area to identify areas of focus for smoke testing and CCTV. The combined efforts will result in a set of priority I/I reduction CIP projects that will be executed to reduce the I/I and thereby minimize the likely hood of future SSOs. Through a change in valving, flow was diverted away from a portion of the gravity system feeding one sewer lift station to minimize surcharging during storm events and onto a different lift station. This requires additional pumping but reduces surcharging and therefore the probability of SSS/SSO. Continuous systematic Investigation of sources of I/I for future repairs. Additionally, the District has installed a temporary flood barrier surrounding the lift station that has approximately 200,000 gallon storage capacity that will allow for the retention of future spills. A permanent flood barrier is currently in the design phase and is projected to be under construction in 2028. 2023 5SSO20004 5F 616 24-MAR-26 Municipal(Public) 11140 0 3 2 1 0 0 0 0 0 1 NA 0 41 27 39 19 15 0 0 100 0 0 0 0 0 0 0 2297 0 None 0 5 5 30 30 30 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5D100109001 Mendota WWTF, 3699 Bass Avenue, Mendota, CA 93640 SSS same agency N N NA NA N NA NA N NA NA N NA NA N NA NANA NA 0 0 0 N Y Other (specify below) NONE Other (specify below) NO SPILLS NONE NONE. NO FAILURES NO RUPTURES OCCURED 2024 5SSO20004 5F 616 24-MAR-26 Municipal(Public) 11484 0 2 1 1 0 0 0 0 0 0 SWRCB Wastewater Treatment Plant Operator Grade II 0 41 27 19 15 15 0 0 100 0 0 10 0 0 0 0 2297 0 None 0 5 5 30 30 30 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5D100109001 Mendota WWTF, 3699 Bass Avenue, Mendota, CA 93640 SSS same agency N N NA NA N NA NA N NA NA N NA NA N NA NA 0 0 0 0 N Y Other (specify below) NO SPILLS Other (specify below) NO SPILLS NONE NONE 2025 5SSO20004 5F 616 24-MAR-26 Municipal(Public) 11484 0 2 1 1 0 0 0 0 0 0 SWRCB Wastewater Treatment Plant Operator Cert # 42130 0 41 27 19 15 15 0 0 100 0 0 10 0 0 0 0 2297 0 None 0 5 5 30 30 30 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 100109001 Mendota WWTF, 3699 Bass Avenue, Mendota, CA 93640 SSS same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 N Y Other (specify below) NONE Other (specify below) NONE, NO SPILLS NONE NO SPILLS 2025 5SSO11306 5F 616 28-MAY-26 Municipal(Public) 1800 0 2 1 1 0 0 0 1 0 0 CWCA Technical Certification Program. Certification Attached 0 5.5 0 100 0 0 0 0 100 0 0 0 0 0 0 0 3 0 None 0 1 0 10 89 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.1 1 5D100123001 Laton WWTF, 6331 Dewoody , Laton, CA 93242 WWTP same agency N N None None None 0 0 0 Y N Other (specify below) Category 4 spills caused by wipes or non-disposables affecting the impeller of the lifter pumps. FOGs are sometimes present in the domesting wastewater at the wastewater treatment wet well. Other (specify below) System failure occurs at the wastewater treatment wet well, which causes a category 4 spill at the lowest point of the sewer system (Dennise Avenue manhole) No ongoing spill investigations Callout high-low wastewater level sensors installed at the wastewater treatment plant wet well. Alerting staff of rising domestic wastewater levels at the wet well to prevent recordable spills. 2023 5SSO20003 5F 616 02-JAN-26 Municipal(Public) 5100 0 3 1 1 0 1 0 0 0 0 5 total operators, certified by the state of California in water distribution, water treatment and wastewater treatment. 3.3 16.5 40 40 20 0 0 0 100 1 0 99 0 0 0 100 1693 1693 Lower only 1 2 13 55 30 0 0 0 0 0 100 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 .5 .5 5C240104002 Hilmar CWD WWTF, Nr Griffith & Williams , Hilmar, CA 95324 WWTP other agency N 0 0 0 N Y Other (specify below) No spills reported. Other (specify below) Regular debris build-up. No system failures. n/a n/a 2023 5SSO20003 5F 616 02-JAN-26 Municipal(Public) 5100 0 3 1 1 0 1 0 0 0 0 5 total operators, certified by the state of California in distribution, treatment, and wastewater treatment. 3.3 16.5 40 40 20 0 0 0 100 1 0 99 0 0 0 100 1693 1693 Lower only 1 2 13 55 30 0 0 0 0 0 100 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 .5 .5 5C240104002 Hilmar CWD WWTF, Nr Griffith & Williams , Hilmar, CA 95324 WWTP same agency N 0 0 0 N Y Debris-General Other (specify below) Regular debris buildup. No part of the system failed as stated in the question. No spills on our system. N/A N/A 2024 5SSO20003 5F 616 02-JAN-26 Municipal(Public) 5100 0 3 1 1 0 1 0 0 0 0 5 total operators, certified by the state of California in water distribution, water treatment, and wastewater treatment. 3.3 16.5 40 40 20 0 0 0 100 1 0 99 0 0 0 100 1693 1693 Lower only 1 2 13 55 30 0 0 0 0 0 100 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 .5 .5 5C240104002 Hilmar CWD WWTF, Nr Griffith & Williams , Hilmar, CA 95324 WWTP other agency N 0 0 0 N Y Other (specify below) No spills reported Other (specify below) Regular build up. No failure points as listed in the question. n/a n/a 2025 5SSO11343 5S 616 31-MAR-26 Municipal(Public) 2211 0 2 1 1 0 0 0 0 0 1 Wastewater Treatment Operator Grade 1 2 9 31 42 27 0 0 0 100 10 26 64 0 0 0 100 687 0 None 0 0 23 33 18 26 0 0 0 0 100 0 0 1 1 0 0 0 0 0 2 0 1 0 2 0 0 0 0 0 3 0 5 0 5C240113001 Santa Nella SWTP, 29300 Bay View Rd. , Santa Nella, CA 95322 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance NA Gravity Mainline Hot spots in certain parts of the system. None Upgrade lift stations. 2023 5SSO20029 5F 616 26-MAR-24 Municipal(Public) 4500 0 0 0 0 2 0 0 0 0 0 none 0 3 50 30 20 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 20 0 0 0 0 0 80 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 5SSO20029 Ivanhoe PUD CS, , Ivanhoe, CA WWTP same agency N none none none none none none none none none none none 0 0 0 N N Other (specify below) no spills to report Other (specify below) no spills to report none none 2023 5SSO20029 5F 616 04-JAN-24 Municipal(Public) 4500 0 0 0 0 2 0 0 0 0 0 none 0 3 50 30 20 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 20 0 0 0 0 0 80 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 55SS020029 Ivanhoe public utility district wwtp 15285 ave 324 WWTP same agency N none none none none none none none none none 0 0 0 N Y Other (specify below) no spills to report Other (specify below) no spills to report none none 2023 3SSO11422 3 616 14-MAR-24 Municipal(Public) 4500 0 5 0 1 1 0 3 1 0 0 n/a 3 81 57 33 5 5 0 0 100 38 29 33 0 0 0 100 2500 0 None 0 0 11 10 59 10 10 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 2 0 3 0 0 0 0 0 0 0 35 1 3SSO10244 Carmel Area Wastewater District Collection System, P.O. Box 221428 , Carmel, CA 93922 WWTP other agency N n/a 0 0 2 Y Y Root Intrusion n/a Gravity Mainline n/a None CCTV, jetting 2024 3SSO11422 3 616 17-DEC-25 Municipal(Public) 4500 0 5 0 1 1 2 2 1 0 0 n/a 2.6 81 56 34 5 5 0 0 100 78 11 11 0 0 0 100 2500 0 None 0 1 15 4 60 10 10 0 0 0 100 0 1 1 0 0 0 0 0 0 2 2 2 1 1 0 0 0 0 0 6 0 74 3 3 270101001 001, , CA WWTP other agency N n/a 0 0 2 Y Y Root Intrusion n/a Gravity Mainline n/a None CCTV, Jetting, Line replacements through our capital improvement project 2025 3SSO11422 3 616 31-MAR-26 Municipal(Public) 4500 0 5 0 1 2 2 1 1 0 0 N/A 2.6 81 56 35 4 5 0 0 100 51 27 22 0 0 0 100 2500 0 None 0 4 15 4 60 10 7 0 0 0 100 0 1 1 0 0 0 0 0 0 0 2 2 1 1 0 0 0 0 0 6 0 59.9 5 3 270101001 Carmel Area Wastewater District Collection System, P.O. Box 221428 , Carmel, CA 93922 WWTP other agency N N/A 0 0 2 Y Y Root Intrusion N/A Gravity Mainline N/A none CCTV, jetting, line replacements through Capital Improvement Plan 2024 3SSO20022 3 616 31-MAR-25 Municipal(Public) 7515 0 1 1 1 2 0 0 0 0 0 10.5 27 20 60 20 0 0 0 100 80 20 0 0 0 0 100 0 0 None 0 0 8 25 34 30 3 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 8 0 0 0 0 0 0 0 .5 27 0 3 270118002 M1W, 114811 Del Monte Boulevard WWTP other agency Y N Monte Del Lago N/A N North Monterey High School N/A N Struve Road Trailer Park N/A 0 1 3 N Y Debris-General Gravity Mainline None Design for new collection system in Moss Landing is at 60%. Washington Bypass gravity mainline leaving downtown is at 60% design. Currently seeking grant funding and easements for both. 2025 3SSO20022 3 616 20-MAR-26 Municipal(Public) 7515 1 1 1 1 2 0 0 0 0 0 10.5 27 20 60 20 0 0 0 100 80 20 0 0 0 0 100 0 0 None 0 1 9 25 35 30 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 8 0 0 0 0 0 0 9 100 100 0 3 270118002 M1W. 114811 Del Monte Blvd. WWTP other agency Y N Monte Del Lago N/A 0 1 3 N Y Debris-General Pump Station - Controls N/A Moss Landing New SS Collections system design is at 60%, Washington Bypass Gravity Mainline is at 60%. Funding short fall, seeking grants 2023 4SSO11423 4 616 25-MAR-24 Municipal(Public) 451307 5 26 5 2 9 7 4 6 0 0 NA 8 706 1 84 13 2 0 0 100 27 14 59 0 0 0 100 90041 90041 Lower only 460 0 3 3 7 42 31 9 0 4 100 0 0 0 8 1 3 0 0 0 12 0 1 8 2 1 0 0 0 4 16 30 339 133 4SSO11388 Los Angeles County Sanitation Districts 1955 Workman Mill Road, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resource Facility 24501 South Figueroa Street, Carson, CA 90745 WWTP other agency 4B190107014 Long Beach Water Reclamation Plant 7400 E. Willow Street, Long Beach, CA 90815 WWTP other agency 8 300110002 Treatment Plant No. 2 22212 Brookhurst Street, Huntington Beach, CA 92646 WWTP other agency Y N Lakewood Douglas Park 0 N Lyons Mobile Homes 0 N Long Beach Harbor Department 0 N City of Signal Hill 0 N Carmelitos Housing 0 No - Friendly Village Mobile Home Park - 0 24 3 101 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA None In order to address system deficiencies, several actions are taken. A 2-year cycle for hydrojetting gravity mains is implemented to ensure regular maintenance and prevention of potential issues. Concurrently, a 5-year cycle for CCTV of gravity mains is established to monitor the system's condition and identify any emerging problems. Any areas of immediate concern are handed over to the engineering department for prompt repair to prevent further damage or escalation. The data collected from CCTV is thoroughly analyzed to drive Capital Improvement Projects, ensuring that the system is continuously improved and updated. Finally, the use of social media is utilized for community outreach to encourage healthy sewer habits among the public. This will help in preventing avoidable issues and ensure the longevity and efficiency of the sewer system. 2024 4SSO11423 4 616 21-MAR-25 Municipal(Public) 449468 6 20 7 2 5 9 3 5 0 0 N/A 8 706 1 84 13 2 0 0 100 27 14 59 0 0 0 100 90058 90058 Lower only 460 0 3 3 7 42 32 9 0 4 100 0 0 0 8 1 3 0 0 0 12 0 1 8 2 1 0 0 0 4 16 30 308 135 4SSO11388 Los Angeles County Sanitation Districts 1955 Workman Mill Road, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resource Facility 24501 South Figueroa Street, Carson, CA 90745 WWTP other agency 4B190107014 Long Beach Water Reclamation Plant 7400 E. Willow Street, Long Beach, CA 90815 WWTP other agency 8 300110002 Treatment Plant No. 2 22212 Brookhurst Street, Huntington Beach, CA 92646 WWTP other agency Y N Lakewood Douglas Park 0 N Lyons Mobile Homes 0 N Long Beach Harbor Department 0 N City of Signal Hill 0 N Carmelitos Housing 0 No - Friendly Village Mobile Home Park - 0 24 3 101 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None In order to address system deficiencies, several actions are taken. A 2-year cycle for hydro jetting gravity mains is implemented to ensure regular maintenance and prevention of potential issues. Concurrently, a 5-year cycle for CCTV of gravity mains is established to monitor the system's condition and identify any emerging problems. Any areas of immediate concern are handed over to the engineering department for prompt repair to prevent further damage or escalation. The data collected from CCTV is thoroughly analyzed to drive Capital Improvement Projects, ensuring that the system is continuously improved and updated. Finally, the use of social media is utilized for community outreach to encourage healthy sewer habits among the public. This will help in preventing avoidable issues and ensure the longevity and efficiency of the sewer system. 2025 4SSO11423 4 616 23-MAR-26 Municipal(Public) 450901 8 24 7 2 6 12 3 6 0 0 NA 7.9 706 1 84 13 2 0 0 100 27 14 59 0 0 0 100 89853 89853 Lower only 460 0 3 4 7 42 31 9 0 4 100 0 0 0 8 1 3 0 0 0 12 0 1 8 2 1 0 0 0 4 16 30 241.1 100.8 4SSO11388 Los Angeles County Sanitation Districts 1955 Workman Mill Road, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resource Facility 24501 South Figueroa Street, Carson, CA 90745 WWTP other agency 4B190107014 Long Beach Water Reclamation Plant 7400 E. Willow Street, Long Beach, CA 90815 WWTP other agency 8 300110002 Treatment Plant No. 2 22212 Brookhurst Street, Huntington Beach, CA 92646 WWTP other agency Y N Lakewood Douglas Park 0 N Lyons Mobile Homes 0 N Long Beach Harbor Department 0 N City of Signal Hill 0 N Carmelitos Housing 0 No - Friendly Village Mobile Home Park - 0 24 3 101 Y Y Fats, Oil and Grease (FOG) NA Gravity Mainline NA None To address system deficiencies gravity mains undergo hydrojetting on a 2-year cycle for regular maintenance and issue prevention, while a 5-year CCTV inspection cycle monitors system conditions and identifies emerging problems. Areas requiring immediate attention are referred to the engineering department for prompt repair. CCTV data is analyzed to inform Capital Improvement Projects, ensuring continuous system enhancement. Community outreach through social media promotes healthy sewer habits, helping prevent avoidable issues. LB Utilities actively investigates inflow through manholes, replacing them with composite lids to prevent water intrusion when identified. Through an MOU with the Long Beach Health Department, LBU conducts FOG (Fats, Oils, and Grease) inspection reports for food establishments, examining records, grease interceptors, and best management practices. This partnership helps prevent FOG discharges into the collection system. 2024 1SSO11441 1 616 29-DEC-25 Municipal(Public) 5000 0 3 2 1 0 0 0 0 0 0 2 60 75 20 5 0 0 0 0 1000 0 0 0 0 0 0 0 0 Lower only 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 25 10 1B80078OMEN WWTP other agency N 3 0 0 N Y Root Intrusion Gravity Mainline none none 2025 1SSO11441 1 616 18-MAR-26 Municipal(Public) 5000 0 6 3 1 0 0 0 0 0 0 n/a 5 50 75 20 5 0 0 0 0 100 0 0 0 0 0 0 1500 0 None 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 20 5 1B80078OMEN willits ca WWTP other agency N N 3 0 0 N Y Root Intrusion n/a Gravity Mainline n/a n/a increase maintenance frequencies 2023 8SSO11424 8 616 29-MAR-24 Municipal(Public) 36827 1 11 4 1 3 0 0 0 0 0 NA 6 71 1 81 15 3 0 0 100 20 4 76 0 0 0 100 12464 18 Upper and Lower 0 0 5 26 36 2 0 0 0 31 100 0 2 0 0 0 0 0 0 0 2 0 1 2 2 0 0 0 0 0 5 0 50 10 8 330117003 001, , Riverside, CA WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 7 2 2 Y Y Other (specify below) No spills in 2023 Other (specify below) No spills in 2023 No spills in 2023 Routine sewer video and cleaning. 2023 6SSO11425 6B 616 29-MAR-24 Municipal(Public) 136854 3 10 1 1 2 3 3 0 0 8 4 employees are NASSCO certified 1 454 1 75 18 6 0 0 100 6 92 2 0 0 0 100 31286 31286 Lower only 238 5 5 60 15 3 0 0 0 12 100 0 0 0 0 0 0 0 0 0 0 1 3 1 0 6 0 0 0 0 0 2 149 48 6B360911001 SCLA Industrial Wastewater Treatment Plant, 20080 Helendale Rd, Victorville, CA 92392 WWTP same agency 6B360109001 Victor Valley Wastewater Reclamation Authority, 20111 Shay Rd, Victorville, CA 92394 WWTP other agency N N/A 0 1 1 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None System deficiencies are put on a Routine Maintenance Program that includes more frequent flushing of sewer mains, CCTV inspections of sewer mains and laterals, and the repair or replacement of damaged sewer pipe. 2024 6SSO11425 6B 616 31-MAR-25 Municipal(Public) 136854 2 9 1 2 2 2 2 0 0 6 9 employees are NASSCO certified. 1.2 454 1 75 18 6 0 0 100 6 92 2 0 0 0 100 31286 31286 Lower only 238 5 5 60 15 3 0 0 0 12 100 0 0 0 0 0 0 0 0 0 0 2 3 1 0 6 0 0 0 0 12 2 182.3 37.5 6B360911001 SCLA Central IWWTP-Victorville Water Dist, 14343 Civic Center Drive, Victorville, CA 92392 WWTP same agency 6B360109001 Victor Valley Wastewater Reclamation Authority, 20111 Shay Rd Victorville CA 92394 WWTP other agency N N/A 0 1 1 Y Y Root Intrusion N/A Lower Lateral N/A None System deficiencies are put on a Routine Maintenance Program that includes more frequent flushing of sewer mains, CCTV inspections of sewer mains and laterals, and the repair or replacement of damaged sewer pipe. 2025 6SSO11425 6B 616 20-MAR-26 Municipal(Public) 140868 5 8 1 1 6 2 2 0 0 10 We have 8 employee's that are NASSCO certified. 1.2 454 1 75 18 6 0 0 100 6 92 2 0 0 0 100 31286 31286 Lower only 238 5 5 60 15 3 0 0 0 12 100 0 0 0 0 0 0 0 0 0 0 2 3 1 0 6 0 0 0 0 12 2 187.2 22.1 6B360911001 SCLA Central WWTP-Victorville Water Dist, 14343 Civic Center Drive, Victorville, CA 92392 WWTP same agency 6B360109001 Victor Valley Wastewater Reclamation Authority, 20111 Shay Rd Victorville CA 92394 WWTP other agency N N/A 0 1 1 Y Y Root Intrusion N/A Lower Lateral N/A None. System deficiencies are put on a Routine Maintenance Program that includes more frequent flushing of sewer mains, CCTV inspections of sewer mains and laterals, and the repair or replacement of damaged sewer pipe. 2023 5SSO11224 5F 616 29-MAR-24 Municipal(Public) 26955 1 6 1 1 1 2 0 0 0 0 N/A 1 7461 8 15 5 72 0 0 100 0 0 0 100 0 0 100 7590 0 None 0 18 20 35 21 5 1 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 40 5 5SSO11224 The City of Dinuba CS, , Dinuba, CA WWTP same agency N N N/A N/A N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 5SSO11224 5F 616 21-NOV-25 Municipal(Public) 27281 1 6 1 1 1 2 0 0 0 0 n/a 300 15070 10 13 5 72 0 0 100 100 0 0 0 0 0 100 7724 0 None 0 19 19 35 21 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 40 5 5D540101001 Dinuba WWTF, 6675 Ave 412 , Dinuba, CA 93618 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 5SSO11224 5F 616 01-APR-26 Municipal(Public) 272781 1 4 1 1 0 3 0 0 0 0 n/a .3 72.8 30 41 25 4 0 0 100 100 0 0 0 0 0 100 8266 0 None 0 19 19 35 21 5 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 45 6 5D540101001 Dinuba WWTF, 6675 Ave 412 , Dinuba, CA 93618 WWTP same agency N n/a 0 0 0 Y Y Other (specify below) n/a Other (specify below) n/a n/a n/a 2023 6SSO11427 6B 616 27-MAR-24 Municipal(Public) 100744 3 3 1 2 2 1 1 2 0 0 1 159 1 62 36 1 0 0 100 100 0 0 0 0 0 100 5864 5864 Lower only 67 2 38 60 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 26 20 6B360109001 001, , CA WWTP same agency Y N County of San Bernardino - Oak Hills 6SSO11377 5 0 1 N Y Other (specify below) No spills during calendar year 2023. Other (specify below) No failures during calendar year 2023. None No actions taken during calendar year 2023 as no spills or failures occurred during the year. 2024 6SSO11427 6B 616 25-MAR-25 Municipal(Public) 100744 2 4 1 2 2 1 1 2 0 0 1 160 1 62 36 1 0 0 100 100 0 0 0 0 0 100 6155 6155 Lower only 70 2 38 60 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 46 46 6B360109001 001, , CA WWTP same agency Y N County of San Bernardino - Oak Hills 6SSO11377 5 0 1 N Y Construction Diversion Failure Manhole None Failure point at manhole will be submitted to the City's Engineering department for a capital improvement project. City staff has increased its monitoring of the deficient manhole. 2025 6SSO11427 6B 616 26-MAR-26 Municipal(Public) 101836 3 3 1 2 2 1 1 2 0 0 N/A 1.9 132 1 62 36 1 0 0 100 72 7 0 21 0 0 100 6601 6601 Lower only 70 5 43 52 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 0 39 34 6B360109001 001, , CA WWTP same agency Y Y County of San Bernardino 635011377 N/A 5 0 1 N Y Natural Disaster (specify below) Significant storm event occurred on 12/24/25 which caused the separation of a sewer main line. Gravity Mainline N/A None Pipe line was reconstructed with thicker diameter sidewall and restrained at each joint. 2023 3SSO11429 3 616 26-MAR-24 Municipal(Public) 10757 3 9 1 1 9 1 3 0 0 14 2- Laboratory Analyst Grade 2 8 60 72 14 13 1 0 0 100 18 15 54 13 0 0 100 5620 0 None 0 1 2 3 13 55 26 0 0 0 100 2 0 0 1 0 0 0 0 0 3 0 0 1 1 0 0 0 0 0 2 0 40 1 400322963 Morro Bay Water Reclamation Center, 555 S. Bay Blvd. WWTP same agency Y N Morro Bay State Park (North and South locations) NA N San Luis Coast Unified School District NA NA 8 4 1 Y Y Natural Disaster (specify below) January 2023 Storm, major rainfall created flooding from overwhelmed creek. Gravity Mainline NA NA Change cleaning cycle, CCTV investigations to determine appropriate actions. 2024 3SSO11429 3 616 24-DEC-25 Municipal(Public) 10757 3 8 1 1 9 3 2 0 0 13 1- Laboratory Analyst Grade1 8 60 72 14 13 1 0 0 100 18 15 54 13 0 0 100 5620 0 None 0 1 2 3 13 55 26 0 0 0 100 2 0 0 1 0 0 0 0 0 3 0 0 1 1 0 0 0 0 0 2 0 42 1 3 400322963 City of Morro Bay Water Reclamation Facility, 555 South Bay Morro Bay, CA, 93442 WWTP same agency Y N Morro Bay State Park (North and South locations) NA N San Luis Coast Unified School District NA N/A 8 4 1 Y Y Debris-General Gravity Mainline N/A Change cleaning cycle, CCTV investigations to determine appropriate actions. 2025 3SSO11429 3 616 31-MAR-26 Municipal(Public) 10757 2 10 1 1 8 2 2 0 0 15 1 - Laboratory Analyst Grade 1 8 60 72 14 13 1 0 0 100 18 15 154 13 0 0 100 5635 0 None 0 1 2 3 13 55 26 0 0 0 100 2 0 0 1 0 0 0 0 0 3 0 0 1 1 0 0 0 0 0 2 0 43.5 1.2 400322963 Morro Bay Water Reclamation Center, 555 S, Bay Blvd. WWTP same agency Y N Morro Bay State Park (North and South locations) NA N San Luis Coast Unified School District NA NA 8 4 1 Y Y Other (specify below) NA - No Spills for Calendar Year for Enrollee Owned Infrastructure. Pump Station - Mechanical Bearing failure due to improper installation from factory. NA NA 2023 5SSO11271 5F 616 28-MAR-24 Other 3147 5 33 14 6 0 0 0 0 0 0 NA. 0 5 5 15 45 35 0 0 100 0 0 0 0 0 0 0 1 5 Upper and Lower 5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5SSO11270 Central California Women's Facility CS, 23370 Road 22 Road, Chowchilla, CA 93610 WWTP other agency N N NA. 0 0 0 Y Y Other (specify below) NA. Other (specify below) NA. NA. NA. 2024 5SSO11271 5F 616 26-DEC-25 Prison 3173 4 36 14 6 0 4 2 0 0 0 NA 0 4 5 15 45 35 0 0 100 0 0 0 0 0 0 0 1 5 Upper and Lower 4 0 1 99 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5C200800001 CDC CCWF & VSP WWTF, 23370 Road 22 , Chowchilla, CA 93610-8504 WWTP same agency N N None N/A N None N/A N None N/A N None N/A N None N/A NA 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 2SSO11430 2 616 03-APR-24 Port 5700 0 10 6 3 0 0 0 0 0 0 N/A 4 26 40 30 26 4 0 0 100 100 0 0 0 0 0 100 117 117 Upper and Lower 15 0 10 15 25 20 30 0 0 0 100 0 9 18 0 0 0 0 0 0 27 0 0 0 0 0 0 0 0 0 0 0 0 2 2SSO11204 Oakland City CS, 250 Frank Ogawa Plaza , 4314 Oakland, CA 94612 SSS other agency 2SSO10131 Ebmud CS, P.O. Box 24055 , Oakland, CA 94623 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Collection System Maintenance Failure (specify below) Leak in pipe directly over water beneath Jack London Square boardwalk. Lower Lateral N/A None Damaged pipe under boardwalk repaired. Spill reported. 2024 2SSO11430 2 616 20-FEB-25 Port 5700 0 10 6 3 0 0 0 0 0 0 N/A 4 26 40 30 26 4 0 0 100 100 0 0 0 0 0 100 120 120 Upper and Lower 15 3 10 15 25 20 27 0 0 0 100 2 9 16 0 0 0 0 0 0 27 0 0 0 0 0 0 0 0 0 0 0 1 1 2SSO11204 Oakland City CS, 250 Frank Ogawa Plaza, 4314 Oakland, CA 94612 SSS other agency 2SSO10131 EBMUD CS, P.O. Box 24055, Oakland, CA 94623 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Other (specify below) One spill was at the Airport restroom, where debris had been clogging the system. Two others related to construction projects, one where a contractor struck a pipe and another a a temporary bypass wet well. All spills were Category 4 and responded to quickly N/A Training to staff and contractors 2025 2SSO11430 2 616 20-FEB-26 Port 5700 0 10 6 3 0 0 0 0 0 0 N/A 4 26 40 30 26 4 0 0 100 100 0 0 0 0 0 100 120 120 Upper and Lower 15 5 10 15 25 20 25 0 0 0 100 3 9 16 0 0 0 0 0 0 28 0 0 0 0 0 0 0 0 0 0 0 1.4 .3 2SSO11204 Oakland City CS, 250 Frank Ogawa Plaza, 4214 Oakland SSS other agency 2SSO10131 EMBUD CS, P.O. Box 24055, Oakland CA 94623 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General N/A Upper Lateral N/A N/A Training to tenants on not stuffing/flushing rags into system On-going maintenance of existing subsurface utilities. 2024 5SSO20066 5F 616 16-APR-25 Municipal(Public) 22044 2 1 1 1 1 0 0 0 0 0 Currently two employees are working on their Grade I CWEA Collection System Maintenance certificates. 5.5 47.5 45 40 15 0 0 0 100 55 35 10 0 0 0 0 3538 50 None 0 5 10 20 25 20 20 0 0 0 100 0 0 2 3 1 0 0 0 0 6 1 1 3 5 2 0 0 0 0 13 1.5 10 5 5D160102001 Corcoran State Prison WWTF, 4001 King Avenue, Corcoran, CA 93212 WWTP same agency N None. 0 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline None. System deficiencies include: lift station mechanical issues (e.g. single pump in operation), gravity mainline crack causing sinkhole to develop (fixed), FOG concerns from Food Service Establishments and industrial businesses in Corcoran. 2023 5SSO11471 5S 616 06-DEC-24 Municipal(Public) 1825 2 15 2 2 7 2 1 0 0 0 SWRCB Operator Certification 0 5.7 34 47 12 0 0 7 100 0 0 0 0 0 0 0 559 21 Lower only 7.8 0 0 0 9 81 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5.3 0 5B390107001 001, , Stockton, CA WWTP other agency N N N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Increased cleaning, CCTV inspections, repairs. 2024 5SSO11471 5S 616 15-JUL-25 Municipal(Public) 1825 4 4 2 2 0 0 0 0 0 7 SWRCB Operator Certification 0 5 34 47 12 0 0 7 100 0 0 0 0 0 0 0 559 21 Lower only 7 0 0 0 9 81 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 5B390107001 001, , Stockton, CA WWTP other agency N N N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Increased cleaning, CCTV inspections, repairs. 2025 5SSO11471 5S 616 16-MAR-26 Municipal(Public) 1825 4 4 2 2 0 0 0 0 0 7 SWRCB Operator Certification 0 5 34 47 12 0 0 7 100 0 0 0 0 0 0 0 559 21 Lower only 7 0 0 0 9 81 0 0 0 10 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1.2 5B390107001 001, , Stockton, CA WWTP other agency N N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Increased cleaning, CCTV inspections, repairs. 2023 5SSO11303 5S 616 16-DEC-25 Municipal(Public) 3379 0 3 1 1 1 1 0 0 0 0 1 15 56 34 10 0 0 0 100 1 0 0 0 0 0 1 837 0 None 0 33 0 20 37 10 0 0 0 0 100 1 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 8 8 5C550101001 Jamestown Sanitary District Wastewater Treatment Facilities, 10190 Karlee Lane, Jamestown, CA 95327-9284 WWTP same agency N 1 1 0 N Y Root Intrusion Gravity Mainline JSD continues to monitor hot spot areas to prevent future spills. Monitoring consists of CCTV work, routine cleaning and the installation of 2 smart covers. The district continues to CCTV segments in our system. JSD is in contact with several companies to potentially provide a full system review (CCTV, report areas of concern). This would be used to set up a comprehensive CIP. 2024 5SSO11303 5S 616 16-DEC-25 Municipal(Public) 3379 1 2 1 1 2 2 0 0 0 0 1 15 56 34 9 0 0 1 100 1 0 0 0 0 0 100 839 0 None 0 33 0 20 37 10 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 5.5 5.5 5C550101001 Jamestown Sanitary District Wastewater Treatment Facilities, 10190 Karlee Lane, Jamestown, CA 95327-9284 WWTP same agency N 1 1 0 N Y Debris-General Gravity Mainline JSD continues to monitor hot spot areas to prevent future spills. Monitoring consists of CCTV work, routine cleaning, installation of mud dishes to prevent I/I and the installation of 2 smart covers. The district continues to CCTV segments in our system. JSD has contracted with an outside contractor to perform a complete condition assessment of our entire sewer collection system in 2025. This includes hydro flushing and CCTV. The Condition Assessment report will give JSD a clear path moving forward on CIPs. 2025 5SSO11303 5S 616 25-MAR-26 Municipal(Public) 3379 1 2 1 1 1 2 1 0 0 0 1 15 56 34 9 0 0 1 100 1 0 0 0 0 0 100 839 0 None 0 33 0 20 37 10 0 0 0 0 100 3 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 16.2 14.4 5C550101001 Jamestown Sanitary District Wastewater Treatment Facilities, 10190 Karlee Lane, Jamestown, CA 95327-9284 WWTP same agency N 1 1 0 N Y Debris-General Gravity Mainline JSD routinely monitors its hot spot areas. monitoring consists of CCTV work, cleaning, mud dish instillation and the installation of 2 smart cover. A condition assessment was completed in August 2025, and both the sewer main replacement and CIPP rehabilitation projects have successfully moved through the bidding and award phases. The project is now entering the implementation phase, with expected fieldwork to begin soon. 2023 5SSO11433 5S 616 28-AUG-24 Municipal(Public) 321819 9 42 6 5 2 6 1 0 0 0 30 887 28 43 19 6 3 1 100 2 4 22 68 3 1 100 87492 815 Lower only 572 2 18 27 18 16 7 11 0 1 100 1 5 7 9 2 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 1 258 43 5B390107001 001, , Stockton, CA WWTP same agency Y N Colonial Heights Maint. District 5SSO11471 N Lincoln Village Maint. District 5SSO11482 N Pacific Gardens Sanitary District 5SSO11480 N California Health Care Facility 5SSO18099 Country Club Sanitary Maintenance District NA NA 73 33 4 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Pump Station - Mechanical NA None Repair of ARV 2025 5SSO11433 5S 616 07-APR-26 Municipal(Public) 323200 9 46 6 5 4 6 2 0 0 0 30 889 30 43 19 6 3 1 100 2 4 22 68 3 1 100 87520 815 Lower only 572 2 18 27 18 16 7 11 0 1 100 1 5 7 9 2 0 0 0 0 24 0 1 1 2 0 0 0 0 0 4 1 321 48 5B390107001 001, , Stockton, CA WWTP same agency Y N Colonial Heights Maint. District 5SSO11471 N Lincoln Village Maint. District 5SSO11482 N Pacific Gardens Sanitary District 5SSO11480 N California Health Care Facility 5SSO18099 N Country Club Sanitary Maintenance District NA NA 73 33 4 Y Y Construction Diversion Failure Pump Station - Controls All spills are investigated at the time of discovery. Corrective actions such as repairs or increased cleaning frequency. 2023 5SSO11463 5S 616 28-MAR-24 Hospital 9000 0 6 4 2 0 0 0 0 0 0 0 2 11 67 20 0 0 2 100 0 0 0 0 0 0 0 48 48 Upper and Lower 2 0 13 58 5 5 19 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5SSO10901-C City of Sacramento Combined CS, , Sacramento, CA 95814 SSS same agency N 0 0 0 Y Y Debris-General Gravity Mainline No spills at this time. None as we have not had any spills. 2024 5SSO11463 5S 616 19-DEC-25 Hospital 9500 0 6 4 2 0 0 0 0 0 0 None 0 2 11 67 20 0 0 2 100 0 0 0 0 0 0 0 48 48 Upper and Lower 2 0 13 58 5 5 19 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 .1 5A340108002 Sac Sewer, 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency N None 0 0 0 Y Debris-General Gravity Mainline None None as we have not had any spills. 2025 5SSO11463 5S 616 16-MAR-26 Hospital 9700 0 6 4 2 0 0 0 0 0 0 None 0 2 11 67 20 0 0 2 100 0 0 0 0 0 0 0 50 50 Upper and Lower 2 0 13 58 5 5 19 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A340108002 Sac Sewer, 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline None. No spills 2025 None. No spills 2025 2023 5SSO11437 5S 616 23-DEC-25 Municipal(Public) 400 0 1 1 1 0 1 1 0 0 2 Certified through the State of California 1.1 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 1 0 None 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5A581009001 Yuba Cnty Motorplex WWTF, 2793 Forty Mile Road, Marysville, CA 95901 WWTP same agency N 2 2 5 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) 0 0 2024 5SSO11437 5S 616 24-DEC-25 Municipal(Public) 400 0 1 1 1 0 1 1 0 0 2 Certified through the state of California 1.1 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 1 0 None 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A581009001 Yuba Cnty Motorplex WWTF, 2793 Forty Mile Road, Marysville, CA 95901 WWTP same agency N 2 2 5 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) 0 0 2023 5SSO11453 5F 616 12-JAN-26 Other 90 1 0 1 0 0 0 0 0 0 0 none .6 .7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 2 18 Upper and Lower 1.3 0 5 90 5 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 5D100118001 Parlier WWTF, 1101 East Parlier Avenue, Parlier, CA 93648 WWTP other agency N 0 0 0 N Y Other (specify below) No spills Other (specify below) no failures none none 2024 5SSO11453 5F 616 12-JAN-26 Other 90 1 0 1 0 0 0 0 0 0 0 None .6 .7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 2 18 Upper and Lower 1.3 0 5 90 5 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 5D100118001 Parlier WWTF, 1101 East Parlier Avenue, Parlier, CA 93648 WWTP other agency N 0 0 0 N Y Other (specify below) No Spills Other (specify below) No Failures None None 2025 5SSO11453 5F 616 12-JAN-26 Other 90 1 0 1 0 0 0 0 0 0 0 None .6 .7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 2 18 Upper and Lower 0 0 5 90 5 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 5D100118001 Parlier WWTF, 1101 East Parlier Avenue, Parlier, CA 93648 WWTP other agency N 0 0 0 N Y Other (specify below) No Spills Other (specify below) No failures None None 2023 5SSO11284 5S 616 19-APR-24 Municipal(Public) 7000 2 1 0 1 1 0 1 0 0 0 1 Grade 1 wastewater and 1 Grade 3 wastewater certificate 1 OIT 3 22 45 50 5 0 0 0 100 0 100 0 0 0 0 100 22 11 Lower only 11 0 5 25 10 60 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 3 0 0 0 0 0 4 1 15 1 5C240102001 Dos Palos WWTF, Swift Avenue, Dos Palos, CA 93620 WWTP same agency N 5 0 0 N Y Other (specify below) none Other (specify below) none none n/a 2024 5SSO11284 5S 616 13-JAN-25 Municipal(Public) 7000 2 3 1 1 1 0 1 0 0 2 1 OIT , 1 Grade 1 , 1 grade 3 3 22 45 50 5 0 0 0 100 0 100 0 0 0 0 100 22 11 Lower only 11 0 5 25 10 60 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 3 0 0 0 0 0 4 1 20 2 5C240102001 Dos Palos WWTF, Swift Avenue, Dos Palos, CA 93620 WWTP same agency N n/a 5 0 0 N Y Other (specify below) none Other (specify below) none none n/a 2025 5SSO11284 5S 616 02-JAN-26 Municipal(Public) 7000 2 3 1 1 1 0 1 0 0 2 1 OIT,1 GRADE 1, 1 GRADE 3 3 10 45 50 5 0 0 0 100 0 100 0 0 0 0 100 22 11 Lower only 11 0 5 25 10 60 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 1 0 3 0 0 0 0 0 4 1 20 1 5C240102001 Dos Palos WWTF, Swift Avenue, Dos Palos, CA 93620 WWTP same agency N N/A 5 0 0 N Y Other (specify below) NONE Other (specify below) NONE None N/A 2023 5SSO20030 5F 616 09-FEB-24 Municipal(Public) 300 0 1 1 2 1 0 1 0 0 2 N/A 0 2 80 14 6 0 0 0 100 0 0 0 0 0 100 100 63 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5C240116001 San Luis Hills WWTF, 28793 Gonzanga Rd , Santa Nella, CA 93635 WWTP same agency N 0 0 0 N N Other (specify below) There are no major spill causes identified at this time. Other (specify below) There are no identified system infrastructure failure points identified at this time. There are no ongoing spill investigations at this time. There are no identified system deficiencies at this time. 2023 7SSO11440 7 616 28-MAR-24 Municipal(Public) 8050 8 18 2 2 0 0 0 0 0 0 1 35 0 98 1 1 0 0 100 50 0 50 0 0 0 100 2285 2285 Lower only 12 1 74 25 0 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 23 0 7A330105012 Palm Desert WRP #10, 43-000 East Cook Street, Palm Desert, CA 92260 WWTP other agency 7A330114012 Palm Springs WWTF, 4375 Mesquite Avenue, Palm Springs, CA 92264 WWTP other agency N 0 0 0 Y Y Other (specify below) No spills in 2023. Other (specify below) No spills in 2023. N/A Installation of Cathedral Canyon Lift Station flow meter monitoring vault and sample box 2024 7SSO11440 7 616 31-MAR-25 Municipal(Public) 8050 12 22 11 2 0 0 0 0 0 0 1 28 0 98 1 1 0 0 100 50 0 50 0 0 0 100 2285 2285 Lower only 12 0 74 25 0 0 0 0 0 0 100 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 .5 15.4 0 7A330105012 Palm Desert WRP #10, 43-000 East Cook Street, Palm Desert, CA 92260 WWTP other agency 7A330114012 Palm Springs WWTF, 4375 Mesquite Avenue, Palm Springs, CA 92264 WWTP other agency N 0 0 0 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Gravity Mainline N/A N/A 2025 7SSO11440 7 616 31-MAR-26 Municipal(Public) 8050 13 17 11 2 0 0 0 0 0 0 1 29 0 62 9 0 0 29 100 21 15 64 0 0 0 100 2302 2302 Lower only 12 2 44 15 2 0 0 0 0 37 100 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 .5 22.3 0 7A330105012 Palm Desert WRP #10, 43-000 East Cook Street, Palm Desert, CA 92260 WWTP other agency 7A330114012 Palm Springs WWTF, 4375 Mesquite Avenue, Palm Springs, CA 92264 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 5SSO20051 5F 616 16-MAR-26 Municipal(Public) 67013 1 3 1 1 1 0 0 0 0 0 N/A .5 173.3 26 41 23 7 3 0 100 0 0 0 100 0 0 100 15845 0 Lower only 0 1 30 2 10 39 3 15 0 0 100 0 0 1 2 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 4 11 1 5SSO11322 Madera Wastewater Treatment Facility 13048 Rd. 211/2 WWTP same agency Y Y Parkwood 5SSO11315 NA 4 0 6 Y Root Intrusion I did not answer Other Gravity Mainline I did not answer other NA Working on CIP projects to address system deficiencies identified in SSMP. 2024 5SSO20051 5F 616 28-JUN-24 Municipal(Public) 68000 0 3 1 1 1 0 0 0 0 0 NA .5 173.3 26 41 23 7 3 0 100 0 0 0 100 0 0 100 15845 0 Lower only 0 1 30 2 10 39 3 15 0 0 100 0 0 1 2 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 4 11 1 5SSO11322 Madera Wastewater Treatment Facility 13048 Rd 21 1/2 Madera, Ca. 93637 WWTP same agency Y Y Parkwood 5SSO11315 NA 4 0 6 Y Y Root Intrusion I didn't answer other Gravity Mainline I didn't answer other NA Working on CIP projects to address system deficiencies identified in SSMP. 2025 5SSO20051 5F 616 27-MAR-26 Municipal(Public) 66443 0 4 1 1 1 0 0 0 0 0 NA .5 173.3 26 41 23 7 3 0 100 0 0 0 100 0 0 100 15845 10000 Lower only 47.3 1 30 2 10 39 3 15 0 0 100 0 0 1 2 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 4 190 2 5SSO11322 Madera Wastewater Treatment Facility 13048 Rd. 211/2 WWTP same agency Y Y Parkwood 5SSO11315 We do not have more than 5 tributary systems 4 0 6 Y Root Intrusion I did not answer Other Gravity Mainline I did not answer other N/A Avenue 13 Trunk Main lining project, Prioritize cleaning of sewer mains and laterals identified as high maintenance- cleaning on monthly basis. Fairground sewer lift station rahbilitation and upgrade planned for completion in 2026. 2023 5SSO20035 5F 616 02-APR-24 Municipal(Public) 286 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board1 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5D540136001 Tooleville WWTF WWTP same agency N 0 0 0 Y Y Other (specify below) No major spill reported Other (specify below) No failure points no ongoing investigations No actions taken 2023 5SSO20035 5F 616 26-JAN-24 Municipal(Public) 286 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5SS011257 Tooleville WWTP WWTP same agency N 0 0 0 N N Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigation No action taken 2024 5SSO20035 5F 616 26-MAR-25 Municipal(Public) 286 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Operators through the SWRCB 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 0 100 0 0 0 0 0 0 1000 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5D540136001 Tooleville WWTF, South of Morgan Avenue, Road 204, 1/4 miles South of Avenue 276 , Tooleville, CA 93270 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigations No actions taken. 2025 5SSO20035 5F 616 12-MAR-26 Municipal(Public) 286 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 67 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5D540136001 Tooleville WWTF, South of Morgan Avenue, Road 204, 1/4 miles South of Avenue 276 , Tooleville, CA 93270 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills Other (specify below) no failure points no ongoing spills no action taken 2023 3SSO11465 3 616 02-APR-24 Municipal(Public) 41000 0 3 2 1 1 2 0 3 0 5 Listed above are for Collections System Maintenance certifications only. Additionally: 3 employees with Environmental Compliance Inspector Grade 1 1 employee with Laboratory Analysist Grade 1 1 employee with Mechanical Technologist Grade 1 5 70 15 58 24 2 1 0 100 0 34 33 33 0 0 100 6026 0 None 0 0 4 15 40 20 0 0 0 21 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 41 9 3SSO10270 Goleta SD SSS other agency Y Y UCSB 3SSO10343 Y EMID 0 13 6 0 Y Y Other (specify below) No spills in 2023 calendar year. Other (specify below) No infrastructure failure points in 2023. Ongoing proactive analysis of collection system and pump stations via CCTV inspection and hydro cleaning to determine infrastructure rehabilitation or repair. No spills in 2023 calendar year. Analyzing cleaning maintenance program to determine efficiency and adjusting cleaning protocols to better suit collection system needs. Reviewing standard operating procedures, reviewing SERP document, auditing SSMP this year. 2024 3SSO11465 3 616 01-APR-25 Municipal(Public) 41575 1 5 3 1 1 1 0 3 0 5 3 employees with Environmental Compliance Inspector Grade 1 1 employee with Laboratory Analysist Grade 1 1 employee with Mechanical Technologist Grade 1 5 70.2 15 58 24 2 1 0 100 0 34 33 33 0 0 100 6200 0 None 0 0 4 15 40 20 0 0 0 21 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 50.5 0 3SSO10270 Goleta SD, 1 William Moffett Place, Goleta, CA 93116 WWTP other agency N N University of CA Santa Barbara 3SSO10343 N Rancho Embarcadero Municipal Improvement District 3SSO11426 13 6 0 Y Y Other (specify below) Exterior pipe structural problem on the 24 DIP force main believed to have been cause during pipe installation. Soil corrosivity and lack of cathodic protection is also believed to have been a contributing factor to a significant spill that occurred in February of 2024. A mechanical failure of abandoned Air Release Valve hot tap coupling was the cause an unrelated, spill from the 24 DIP force main in a different location. A Force Mains Assessment was completed utilizing BAT in February of 2025. Force Main Investigations complete and spill reports filed on CIWQS. Conducted Force Mains Condition Assessment on 24 and 18 pipes utilizing Xylem Pure Technologies. Awaiting final report. 2025 3SSO11465 3 616 31-MAR-26 Municipal(Public) 41575 1 5 2 2 2 1 0 3 0 6 3 Employees with Environmental Compliance Inspector Grade 1 1 Employee with Laboratory Analysist Grade 1 1 employee with Mechanical Technologist Grade 1 5 70.2 15 58 24 2 1 0 100 0 34 33 33 0 0 100 6200 0 None 0 0 4 15 40 20 0 0 0 21 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 38.8 2.1 3SSO10270 Goleta SD, 1 William Moffett Place, Goleta, CA 93116 WWTP other agency Y N University of CA Santa Barbara 3SSO10343 N Rancho Embarcadero Municipal Improvement District 3SSO11426 13 6 0 Y Y Other (specify below) No spills in calendar year 2025. Other (specify below) Potential failure points found in Xylem Pipe Diver and Smartball pipe inspection of 24 and 18 force mains were excavated and repaired. Pipe corrosion and soil corrosivity found and described in final Force Main Assessment Report. No current ongoing spill investigations. 24 and 18 Force Main Assessment Report finalized which concludes pipes are at risk of failure and should be replace or rehabilitated within 5 years. Currently evaluating options for replacement and intend to begin planning and environmental review in 2026. 2023 2SSO11444 2 616 29-MAR-24 Municipal(Public) 20 0 2 1 0 0 0 0 0 0 0 CA SWRCB WASTEWATER TREATMENT PLANT OPERATOR CERTIFICATIONS 6 3 100 0 0 0 0 0 5 100 0 0 0 0 0 0 12 12 Upper and Lower 3 0 0 100 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 2 100 0 0 0 0 0 0 2 0 0 0 2SSO11444 China Camp State Park CS, PO Box 1016 , Novato, CA 94948 SSS other agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power 0 ALL PUMPING STATIONS, 5 TOTAL ARE CURRENTLY BEING UPGRADED 2024 2SSO11444 2 616 29-MAR-26 Municipal(Public) 20 0 2 1 0 0 0 0 0 0 0 CA SWRCB WASTEWATER TREATMENT PLANT OPERATOR CERTIFICATIONS 6 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 12 12 Upper and Lower 3 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 2SSO10092 CMSA 1301 Andersen Drive, San Rafael, CA 94901 SSS other agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power no ALL PUMPING STATIONS, 5 TOTAL ARE CURRENTLY BEING UPGRADED 2025 2SSO11444 2 616 29-MAR-26 Municipal(Public) 20 0 2 1 0 0 0 0 0 0 0 CA SWRCB WASTEWATER TREATMENT PLANT OPERATOR CERTIFICATIONS 6 3 100 0 0 0 0 0 0 100 0 0 0 0 0 0 12 12 Upper and Lower 3 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 CA0038628 CMSA 1301 Andersen Drive, San Rafael, CA 94901 WWTP other agency N 0 0 0 N Y Pump Station Failure - Power Pump Station - Power NO N/A 2023 5SSO11305 5F 616 26-MAR-24 Municipal(Public) 313 0 9 1 1 0 0 0 0 0 0 0 3 40 60 0 0 0 0 100 0 0 0 0 0 0 0 125 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11305 Fresno Co 44-D MONTE VERDE ESTATES CS, 2220 Tulare Street, Fresno, CA 93716 WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11305 5F 616 09-DEC-25 Municipal(Public) 313 0 4 2 1 0 0 0 0 0 0 0 1.4 40 60 0 0 0 0 100 0 0 0 0 0 0 0 125 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D100139001 Fresno Cnty #44-D Monte Verdi Estates WWTF, 12222 Willow Avenue, clovis, CA 93611 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2025 5SSO11305 5F 616 16-MAR-26 Municipal(Public) 313 0 4 2 1 0 0 0 0 0 0 0 1.4 40 60 0 0 0 0 100 0 0 0 0 0 0 0 125 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5d100139001 Fresno Cnty #44-D Monte Verdi Estates WWTF, 12222 Willow Avenue, clovis, CA 93611 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2023 5SSO11309 5F 616 31-DEC-25 Municipal(Public) 15266 2 4 2 1 3 3 1 0 0 7 3 35 30 50 14 3 0 0 97 0 0 3 0 0 0 3 3520 3511 None 1 5 30 30 20 10 5 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 3 3 1 1 0 0 0 0 8 1 5 1 5SSO11309 710nN Gallo Road Livingston, CA 95334 SSS same agency N none 0 0 0 Y Pump Station Failure - Mechanical none Pump Station - Mechanical none none none 2024 5SSO11309 5F 616 31-DEC-25 Municipal(Public) 15266 2 4 0 2 2 4 2 0 0 8 3 35 30 50 14 3 0 0 97 0 0 3 0 0 0 3 3525 3511 None 1 5 30 30 20 10 5 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 3 3 1 1 0 0 0 0 8 1 3 1 5SSO11309 7160 N. Gallo Road Livingston, CA 95334 SSS same agency N 0 0 0 Y Pump Station Failure - Controls Pump Station - Controls none none Power back up and Generator is working as designed 2023 5SSO11202 5F 616 02-APR-24 Municipal(Public) 545567 10 32 4 2 15 8 6 10 0 31 n/a 12 1590 24 49 17 5 5 0 100 11 23 66 0 0 0 100 141190 273 None 0 1 19 22 35 16 4 3 0 0 100 0 1 3 0 0 0 0 0 0 4 3 3 7 1 0 0 0 0 0 14 3 390 112 5SSO11202 City of Fresno CS, Regional Wastewater Reclamation Facility , Fresno, CA WWTP same agency Y N City of Clovis CS 5SSO11214 N Pinedale Public Utility District CS 5SSO11428 N Pinedale CWD CS 5SSO11656 n/a 12 1 4 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a n/a Review/adjust preventative maintenance cleaning schedules. 2024 5SSO11202 5F 616 05-NOV-25 Municipal(Public) 545716 8 35 4 2 12 10 6 10 0 33 n/a 11.8 1618.3 24 49 17 5 5 0 100 11 23 66 0 0 0 100 143631 273 None 0 2 18 22 34 16 4 3 1 0 100 0 1 3 0 0 0 0 0 0 4 3 3 7 1 0 0 0 0 0 14 3 518 162.7 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP same agency 5D101129001 001, , Fresno, CA 93720 Y N City of Clovis CS 5SSO11214 N Pinedale CWD CS 5SSO11656 n/a 12 1 4 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a n/a Review/adjust preventative maintenance cleaning schedules. Refer non-residential FOG contributors to internal Environmental Control Officers. 2025 5SSO11202 5F 616 01-APR-26 Municipal(Public) 550105 12 31 4 2 11 13 6 10 0 34 n/a 12.9 1619.8 24 49 17 5 5 0 100 11 29 60 0 0 0 100 144296 273 None 0 2 18 22 34 16 4 3 1 0 100 0 1 3 0 0 0 0 0 0 4 3 3 7 1 0 0 0 0 0 14 3 591.4 170.1 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP same agency 5D101129001 001, , Fresno, CA 93720 Y N City of Clovis CS 5SSO11214 Y Pinedale CWD CS 5SSO11656 n/a 12 1 4 Y Y Fats, Oil and Grease (FOG) n/a Gravity Mainline n/a n/a Review/adjust preventative maintenance cleaning schedules. Refer non-residential FOG contributors to internal Environmental Control Officers. 2023 5SSO11466 5F 616 27-MAR-24 Municipal(Public) 44011 0 7 2 0 2 3 2 0 0 0 NONE 4 172 25 35 20 15 5 0 100 49 46 5 0 0 0 100 12784 0 Lower only 41 1 24 20 15 15 10 15 0 0 100 0 0 0 2 0 0 0 0 0 2 2 4 9 6 0 0 0 0 3 24 1 82 2 5SSO11466 SKF County Sanitation District 11301 E Conejo Avenue WWTP same agency N/A N/A N/A N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A NONE 0 0 1 Y Y Other (specify below) Grease, Fats, Debris, Rags, Root Intrusion Other (specify below) Force Main, Failed components to pump stations, Mainline and Lateral off set Joints. NONE CCTV, Enhance maintenance, Spot repairing, Rehabilitation to lift stations, Replace worn out pumps, Install smart covers through the district 2024 5SSO11466 5F 616 30-JUL-25 Municipal(Public) 44197 0 7 2 0 2 2 3 0 0 0 none 3.6 177.2 25 35 20 15 5 0 100 49 46 5 0 0 0 100 11870 0 Lower only 41 1 24 20 15 15 10 15 0 0 100 0 0 0 2 0 0 0 0 0 2 2 4 9 6 0 0 0 0 3 24 1 123.2 3.8 5D100104001 SKF CSD WWTF, 11301 Conejo , Kingsburg, CA 93631 WWTP same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A None 0 0 1 Y Y Other (specify below) Grease, Fats, Debris, Root Intrusion Other (specify below) Pump Station Component Failure, Force Main, Mainline and Lateral Offsets None CCTV, Enhance Maintenance, CIPP, Spot Repairs, Rehabilitation to Lift stations, Replace Pumps, Smart Covers throughout the System 2025 5SSO11466 5F 616 27-MAR-26 Municipal(Public) 45103 3 3 2 0 1 3 1 0 0 0 4 179 20 42 27 9 2 0 100 64 27 9 0 0 0 100 12784 0 Lower only 41 1 24 20 15 15 10 15 0 0 100 0 0 0 2 0 0 0 0 0 2 2 4 9 6 0 0 0 0 3 24 1 113 5 5D100104001 SKF CSD WWTF, 11301 Conejo , Kingsburg, CA 93631 WWTP same agency N N/A N/A N/A N/A N/A N/A 3 0 2 Y Y Other (specify below) Grease, Fats, Root intrusions, Rags Other (specify below) Force Mains, Failed components to pump stations . Mainline and lateral off set joints N/A CCTV, Enhance maintenance , spot repair, rehabilitation to lift station, replace worn out pump. install smart covers through the district. 2023 5SSO11229 5F 616 25-MAR-24 Municipal(Public) 58656 5 0 1 1 0 0 0 0 0 0 NA 4 225 41 25 31 2 1 0 100 50 0 50 0 0 0 100 173 0 None 0 1 17 30 25 20 7 0 0 0 100 0 0 0 0 0 0 0 0 0 0 5 6 9 1 0 0 0 0 0 21 2 57 1 5-01-153 City of Hanford Wastewater Treatment Facility 10555 Houston Ave WWTP same agency N NA 17 0 0 Y N Debris-General NA Gravity Mainline NA NA Adjusted work schedule/Method of Preventive Maintenance 2024 5SSO11229 5F 616 14-NOV-25 Municipal(Public) 60594 2 3 1 1 0 0 0 0 0 0 n/a 4 228.8 40 26 31 2 1 0 100 50 0 50 0 0 0 100 20572 0 None 0 2 17 29 25 20 7 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 5 9 1 0 0 0 0 0 16 2 41.7 1 5d160103001 Hanford WWTF, 10555 Houston Avenue, Hanford, CA 93230 WWTP same agency N 17 0 0 Y N Debris-General none Other (specify below) none none adjusted preventative maintenance schedule and performance 2025 5SSO11229 5F 616 24-MAR-26 Municipal(Public) 61238 1 5 1 1 0 0 0 0 0 0 N/A 4 230.9 40 26 30 2 1 0 98 1 0 1 0 0 0 2 0 0 None 0 3 17 29 24 19 7 0 0 0 100 0 1 0 0 0 0 0 0 0 1 1 5 9 1 0 0 0 0 0 16 2 44 .4 5d160103001 Hanford WWTF, 10555 Houston Avenue, Hanford, CA 93230 WWTP same agency N n/a 17 0 0 Y Debris-General NO MAJOR SPILLS Other (specify below) N/A NONE ACTIVE PREVENTATIVE MAINTENANCE 2023 5SSO20038 5F 616 02-APR-24 Municipal(Public) 2910 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 0 3 45 35 20 0 0 0 100 100 0 0 0 0 0 100 524 2 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D540109001 Terra Bella WWTF, 9832 Road 238 , Terra Bella, CA 93270 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No points of failure No spill investigation No action taken 2023 5SSO20038 5F 616 26-JAN-24 Municipal(Public) 2910 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 0 3 45 35 20 0 0 0 100 100 0 0 0 0 0 100 524 2 Upper and Lower 2 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SS011250 Terra Bella Sewer Main District WWTP same agency N 0 0 0 Y N Other (specify below) No major spills reported Other (specify below) No points of failure No spill investigation No action taken 2024 5SSO20038 5F 616 26-MAR-25 Municipal(Public) 2910 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant Operator through the SWRCB 0 3 45 35 20 0 0 0 100 100 0 0 0 0 0 100 524 2 Upper and Lower 2 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D540109001 Terra Bella WWTF, 9832 Road 238 , Terra Bella, CA 93270 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No points of failure No spill investigation No action taken 2025 5SSO20038 5F 616 12-MAR-26 Municipal(Public) 2910 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 0 3 45 35 20 0 0 0 100 100 0 0 0 0 0 100 524 2 Upper and Lower 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D540109001 Terra Bella WWTF, 9832 Road 238 , Terra Bella, CA 93270 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills Other (specify below) no failure points no ongoing investigations no actions taken 2023 3SSO11216 3 616 22-MAR-24 Municipal(Public) 2505 1 1 2 0 0 1 1 1 0 0 3 20 70 20 10 0 0 0 100 50 0 50 0 0 0 100 2600 1 None 0 1 15 4 0 80 0 0 0 0 100 1 1 1 0 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 1 10 2 3SSO11216 Cayucos CS, 200 Ash Street, Cayucos, CA 93430 WWTP same agency N 3 1 0 N Y Other (specify below) No Spills. Pump Station - Mechanical none. Purchased new pumps for two lift stations. Purchased new CCTV equipment to better map the line conditions. 2024 3SSO11216 3 616 30-DEC-25 Municipal(Public) 2300 1 2 1 0 1 1 1 1 0 0 3 20 70 20 10 0 0 0 100 50 0 50 0 0 0 100 2600 1 None 0 1 15 4 0 80 0 0 0 0 100 1 1 1 0 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 1 12 2 3 401019759 800 Toro Creek Rd., Morro Bay, CA 93442 WWTP same agency N 3 1 0 N Y Other (specify below) No Spills Pump Station - Power No active spills. Routine line inspections and line cleaning to prevent spills. Improvements to back up generators at lift stations for power fails. 2025 3SSO11216 3 616 17-APR-26 Municipal(Public) 2350 1 1 1 0 1 1 1 1 0 0 3 20 70 20 10 0 0 0 100 50 0 50 0 0 0 100 2600 1 None 0 4 15 4 0 77 0 0 0 0 100 1 1 1 0 0 0 0 0 0 3 0 2 0 0 0 0 0 0 0 2 1 10.7 3.5 3_401019759 Cayucos Waste Water Reclamation Facility 800 Toro Creek Rd., Morro Bay, Ca 93442 WWTP same agency N 3 1 0 N Y Pipe Structural Problem/Failure - Installation Force Main No ongoing spills, but our district is working on a 15 year capital improvement plan to replace old infrastructure to minimize failures in the future. Developing capital improvement plans. 2025 5SSO11310 5F 616 17-MAR-26 Municipal(Public) 48896 9 4 3 1 1 0 0 0 0 0 N/A 5 130 43 28 21 7 0 0 100 13 56 31 0 0 0 100 13898 0 None 0 0 53 20 15 7 3 1 1 0 100 0 2 3 0 0 0 0 0 0 5 0 3 3 2 0 0 0 0 0 8 1 28.5 0 5SS011310 City of Los Banos WWTP WWTP same agency N 11 3 0 N Y Debris-Rags N/A Force Main N/A N/A 2023 5SSO20041 5F 616 02-APR-24 Municipal(Public) 412 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 65 35 0 0 0 0 100 100 0 0 0 0 0 100 101 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540136004 Delft Colony WWTF, Road 56 of Ave 384 , Delft Colony, CA 93618 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No major skills reported Other (specify below) No failure points No ongoing spill investigations no action taken 2023 5SSO20041 5F 616 26-JAN-24 Municipal(Public) 412 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 65 35 0 0 0 0 100 100 0 0 0 0 0 100 101 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5SS011256 Delft Colony WWTP WWTP same agency N 0 0 0 N N Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigations No action taken 2024 5SSO20041 5F 616 25-MAR-25 Municipal(Public) 412 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant Operators through the State Water Resources Control Board 1 1 65 35 0 0 0 0 100 100 0 0 0 0 0 100 101 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540136004 Delft Colony WWTF, Road 56 of Ave 384 , Delft Colony, CA 93618 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No Major Spills Reported Other (specify below) No failure points No ongoing spill investigations no action taken 2025 5SSO20041 5F 616 12-MAR-26 Municipal(Public) 412 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resource Control Board 1 1 65 35 0 0 0 0 100 100 0 0 0 0 0 100 101 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540136004 Delft Colony WWTF, Road 56 of Ave 384 , Delft Colony, CA 93618 WWTP same agency N NA 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing spill investigations No actions taken 2023 2SSO11204 2 616 02-APR-24 Municipal(Public) 440000 28 37 8 3 11 1 1 2 0 1 NA 1 932 6 67 17 4 1 5 100 70 22 8 0 0 0 100 112380 310 Upper and Lower 2 4 25 15 10 36 0 0 0 10 100 2 0 0 0 0 0 0 0 0 2 9 0 0 0 0 0 0 0 0 9 0 211 53 2SSO10131 Ebmud CS, P.O. Box 24055 , Oakland, CA 94623 WWTP other agency Y N City of Piedmont 2SSO10166 NA 432 1 0 Y Y Root Intrusion NA Gravity Mainline NA None Accelerated preventive maintenance; pipe repair/rehab. 2024 2SSO11204 2 616 11-DEC-25 Municipal(Public) 440000 28 37 8 3 11 1 1 2 0 1 NA 1 932 6 67 17 4 1 5 100 70 22 8 0 0 0 100 112380 310 Upper and Lower 2 4 25 15 10 36 0 0 0 10 100 2 0 0 0 0 0 0 0 0 2 9 0 0 0 0 0 0 0 0 9 0 302 103 2 019014001 001-EBMUD, , CA WWTP other agency Y N City of Piedmont 2SSO10166 432 1 0 N Y Root Intrusion NA Gravity Mainline NA None Accelerated preventive maintenance; pipe repair/rehab; level monitoring 2025 2SSO11204 2 616 25-MAR-26 Municipal(Public) 440000 28 37 8 3 11 1 1 2 0 1 NA 1 932 6 67 17 4 1 5 100 70 22 8 0 0 0 100 112380 0 None 0 4 25 15 10 36 0 0 0 10 100 2 0 0 0 0 0 0 0 0 2 9 0 0 0 0 0 0 0 0 9 0 272 92 2 019014001 001-EBMUD, , CA WWTP other agency Y N City of Piedmont 2SSO10166 NA 432 1 0 Y Y Root Intrusion NA Gravity Mainline NA None Accelerated preventive maintenance; pipe repair/rehab; level monitoring 2023 5SSO11446 5F 616 26-MAR-24 Prison 565 0 9 1 1 0 0 0 0 0 0 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 0 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11446 Juvenile Justice Campus CS, 2220 Tulare Street, Fresno, CA 93721 WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11446 5F 616 09-DEC-25 Prison 565 0 4 2 1 0 0 0 0 0 0 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 0 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 0 5B10NC00011 Fresno Cnty Juvenile Justice WWTF, 3333 American Avenue , Fresno, CA 93725 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2025 5SSO11446 5F 616 16-MAR-26 Prison 565 0 4 2 1 0 0 0 0 0 0 0 1 30 40 30 0 0 0 100 0 0 0 0 0 0 0 0 0 Lower only 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 0 5B10NC00011 Fresno Cnty Juvenile Justice WWTF, 3333 American Avenue , Fresno, CA 93725 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2024 5SSO20025 5F 616 30-DEC-25 Municipal(Public) 3477 0 1 1 0 0 0 0 0 0 0 Wastewater grade II #41849 SWRCB 1.2 10.6 32 58 10 0 0 0 100 0 0 100 0 0 0 0 900 1 Lower only 2.4 0 25 12 27 6 0 0 0 30 100 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5D100114001 Riverdale WWTF, 20896 Malsbary , Riverdale, CA 93656-9274 WWTP same agency N N Y Combined 5D100114001 N Riverdale PUD 5D100114001 N Riverdale PUD 5D100114001 N Riverdale PUD 5D100114001 3 2 0 N N Fats, Oil and Grease (FOG) Pump Station - Controls Check manholes Checking lift stations 2023 3SSO11469 3 616 31-DEC-25 Municipal(Public) 113000 1 8 2 1 0 1 1 0 0 10 7 operators are dual certified in Water Distribution and Water Treatment. 0 243 41 35 17 2 0 5 100 100 0 0 0 0 0 100 21849 0 None 0 0 23 36 29 3 2 0 0 7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 4 238 16 3 420109001 City of Santa Maria WWTP, 601 Black Rd. Santa Maria, CA 93458 WWTP same agency Y N Santa Barbara County Laguna Sanitation 3SSO10279 N/A 10 0 12 Y Y Vandalism (specify below) One sewer spill occurred in 2023. This was caused by debris dumped into sewer manhole. Manhole One sewer spill occurred in 2023. This was caused by debris dumped into sewer manhole. None A total of 37 repairs were made to sewer mains or manholes in 2023 to address defects found during system inspection and maintenance activities. Over 10,500 ft. of sanitary sewer was treated for root control purposes in 2023. Four potential sewer spills were prevented in 2023 by alarms from the City's network of sewer level monitors and timely response from City operators. One major illegal dumping of pool slurry was fully remedied in 2023 with help from an outside contractor to clean the pool slurry and video the lines to assure full removal. 2024 3SSO11469 3 616 31-DEC-25 Municipal(Public) 110608 1 8 2 1 1 0 3 0 0 10 6 Sewer Operators are classified as Water Resources Operators (with at least two certificates in Wastewater Treatment and Water Treatment with a few other operators with additional certificates in Water Distribution and Collections) and 3 operators are classified as Wastewater Operators certified with Wastewater Treatment certificates and some also hold CWEA Collection System certificates. 0 243 41 35 17 2 0 5 100 100 0 0 0 0 0 100 21849 0 None 0 0 23 36 29 3 2 0 0 7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 4 331.2 10 3 420109001 City of Santa Maria WWTP, 601 Black Rd. Santa Maria, CA 93458 WWTP same agency Y N Santa Barbara County Laguna Sanitation 3SSO10279 N/A 10 0 12 Y Y Other (specify below) Spill 895450 was caused by remnants of pool construction debris from a private lateral which are suspected to be from an illegal dump event at 3058 Patricia Ct on 12/2022, which was reported on the 2023 Annual Report. The mainline was inspected after the initial event, which showed full removal of debris, so staff concluded this debris came from a private lateral due to the nature of the material. Spill 893307 was due to debris from root material, which was identified during pipe cleaning and CCTV footage. Gravity Mainline None 11 sewer repairs and 50 manhole rehabilitations were performed in 2024 to address defects identified during collection system inspections and routine maintenance activities. Sewer repairs and manhole rehabilitation are part of an ongoing effort to prevent spills and system failures. The City also uses a network of 23 Mission Communications sewer level monitors and 9 SmartCovers to notify staff when there is a sewer surcharge to prevent spills. Pretreatment Program staff also performed 185 Food Service Establishment inspections and 2 FOG awareness door tagging events in residential areas to help reduce FOG in the collection system. 2025 3SSO11469 3 616 26-MAR-26 Municipal(Public) 112225 2 8 2 2 1 0 3 0 0 10 6 Sewer Operators are classified as Water Resources Operators (with at least two certificates in Wastewater Treatment and Water Treatment with a few other operators and additional certificates in Water Distribution and Collections) and 3 operators are classified as Wastewater Operators certified with Wastewater Treatment certificates, and some also hold CWEA Collection System certificates. 0 243 41 35 17 2 0 5 100 100 0 0 0 0 0 100 21849 0 None 0 0 23 36 29 3 2 0 0 7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 4 362.4 10.4 3 420109001 City of Santa Maria CS, 601 Black Rd, Santa Maria, CA 93458 WWTP same agency Y N Santa Barbara County Laguna Sanitation 3SSO10279 N/A 10 0 12 Y Y Other (specify below) N/A Other (specify below) N/A None 16 sewer line repairs and 1 sewer line capacity upgrade were performed in 2025 to address deficiencies during routine maintenance activities and collection systems inspections, which included CCTV inspections. In contrast to 2024, no manhole rehabilitations were performed or needed. The City continues to use a network of 23 Mission Communications sewer level monitors and 9 SmartCovers to notify staff when there is a sewer surcharge to prevent spills. Pretreatment Program staff also performed 168 Food Service Establishment inspections, and one FOG awareness event. Outreach staff also conducts FOG awareness campaigns which involve flyer and brochure distributions at multiple community events throughout the year. 2023 5SSO11344 5F 616 28-MAR-24 Municipal(Public) 280 0 3 1 1 0 0 0 0 0 0 2 operators with Grade 1 Wastewater Treatment 1 Grade 3 Wastewater Treatment 0 9 55 0 45 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 1 0 0 0 5c240111001 Snelling WWTF, Hwy 59 , Snelling, CA 95369 WWTP same agency N Y Snelling WWTF, Hwy 59 , Snelling, CA 95369 5c240111001 0 0 0 0 N Y Other (specify below) We have never had a spills. Other (specify below) We don't really have any failure points. No spills N/A 2023 4SSO11447 4 616 28-MAR-24 Municipal(Public) 23788 2 17 2 1 1 2 1 0 0 0 1 74 0 95 5 0 0 0 100 100 0 0 0 0 0 100 6779 0 None 77 0 2 51 47 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 4SSO10460 Las Virgenes MWD CS, 4232 Las Virgenes Road, Calabasas, CA 91302 SSS other agency N 0 0 0 Y Y Other (specify below) Unknown. Contractor digging in the area. Gravity Mainline Broken Pipe None We will continue with the current maintenance and inspection schedule. 2024 4SSO11447 4 616 22-DEC-25 Municipal(Public) 23788 3 10 1 1 1 0 1 0 0 0 .9 72.9 0 95 5 0 0 0 100 100 0 0 0 0 0 100 6779 0 None 77 0 2 51 47 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 4B190104001 001, , Calabasas, CA 91302 SSS other agency N 0 0 0 Y Y Vandalism (specify below) Debris, rags. Gravity Mainline None noted. Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days. Added Sewer to Preventive Maintenance Program, Other (specify below) Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days. 2025 4SSO11447 4 616 16-MAR-26 Municipal(Public) 23788 6 16 3 1 2 4 2 0 0 0 NASCO .9 72.9 0 94 6 0 0 0 100 11 89 0 0 0 0 100 6779 0 None 77 0 2 51 47 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 14.8 0 4B190104001 001, , Calabasas, CA 91302 WWTP other agency 4B196000037 Discharge Point 1, 731 Malibu Canyon Road, Calabasas, CA 91302 N 5 0 0 Y Y Debris-General Calcuim build up Gravity Mainline Manhole Calcuim debris Adjusted Schedule/Method of Preventive Maintenance, Other (specify below) Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days. 2025 1SSO11475 1 616 16-MAR-26 Municipal(Public) 320 1 2 0 0 0 0 0 0 0 0 WWII d-2 2 3 100 0 0 0 0 0 8 100 0 0 0 0 0 0 156 156 Lower only .8 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 85 R1-2017-0005 SSS other agency N 0 0 0 N Y Damage by Others Not Related to Collection System Construction/Maintenance NO SPILLS Force Main NO FAILURES NO ONGOING INVESTIGATIONS N/A 2023 8SSO11477 8 616 28-MAR-24 Municipal(Public) 216330 2 12 2 1 0 1 2 0 0 0 CWEA 4 474 1 74 17 6 2 0 100 0 0 100 0 0 0 100 45357 45357 Lower only 344 5 10 50 15 20 0 0 0 0 100 0 1 3 3 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 332 30 NA Inland Empire Utilities Agency WWTP other agency NA Rialto Treatment Plant WWTP other agency N N na na NA 0 0 2 Y Y Fats, Oil and Grease (FOG) Debris-rags, root intrusions, Debris from Construction Gravity Mainline Lower Laterals NA Continuous weekly preventative high frequency mainline cleaning, Lift station maintenance, CCTV inspection assessments, lateral inspections and jet rodding, root X for root intrusions. Upgrades to aged mainlines and laterals, and pump station rehabilitations including a SCADA operating system. 2024 8SSO11477 8 616 05-NOV-25 Municipal(Public) 216330 3 11 2 1 0 1 2 0 0 0 CWEA 4 474 1 74 17 6 2 0 100 0 0 100 0 0 0 100 45357 45357 Lower only 344 5 10 50 15 20 0 0 0 0 100 0 1 3 3 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 365 32 8 362918001 001, , CA WWTP other agency 8 360112001 001, , CA WWTP other agency N na N/A 0 0 2 Y Y Fats, Oil and Grease (FOG) Debris Rags root intrusions Debris from construction Gravity Mainline Lower laterals N/A Continuous weekly preventive high frequency mainline cleaning. lift station maintenance CCTV inspection and assessment lateral inspections and jet rodding root x for root intrusions upgrades to aged mainlines and laterals and pump station rehabilitation and upgraded SCADA operating system 2025 8SSO11477 8 616 26-MAR-26 Municipal(Public) 223089 3 11 2 1 0 1 2 0 0 0 CWEA 4 474 1 74 17 6 2 0 100 0 0 100 0 0 0 100 45357 45357 Lower only 344 5 10 50 15 20 0 0 0 0 100 0 1 3 3 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 372 30 8 362918001 Inland Empire Utilities Agency WWTP other agency 8 360112001 Rialto Treatment Plant WWTP other agency N N na N/A 0 0 2 Y Y Fats, Oil and Grease (FOG) Debris, Rags, Root Intrusions, Debris from Construction Gravity Mainline Lower Laterals N/A Continuous weekly preventive high frequency mainline cleaning. lift station maintenance CCTV inspection and assessment lateral inspections and jet rodding root x for root intrusions upgrades to aged mainlines and laterals and pump station rehabilitation and upgraded SCADA operating system 2023 5SSO11326 5F 616 16-APR-24 Municipal(Public) 960 0 3 1 1 0 0 0 0 0 2 1.1 4.2 79 0 0 0 0 0 79 21 0 0 0 0 0 21 340 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 1.2 0 0 5C221003001 Don Pedro Sewer Zone 1, 2237 Ranchito Drive, La Grange, CA 95329 WWTP same agency N N/A 1 1 0 N Y Pump Station Failure - Mechanical N/A Pump Station - Controls N/A replacing old non-functional or failing lift station pumps with newer, smaller, easier to maintain submersible pumps. 2025 5SSO11326 5F 616 17-MAR-26 Municipal(Public) 250 0 2 1 1 1 1 2 0 0 0 0 3 8 100 0 0 0 0 0 100 100 0 0 0 0 0 100 108 0 Upper and Lower 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 4.5 0 0 5C221003001 Don Pedro Sewer Zone 1, 2237 Ranchito Drive, La Grange, CA 95329 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 1 1 0 Y Y Pump Station Failure - Mechanical Control Systems/Pump Failure. Pump Station - Mechanical 0 0 Replaced control system and pump. 2023 5SSO11323 5F 616 16-APR-24 Municipal(Public) 420 0 3 1 1 0 0 0 0 0 2 N/A 0 6 100 0 0 0 0 0 100 0 0 0 0 0 0 0 188 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 3.3 5C221002001 Yosemite West MD WWTF, 7168 Yosemite Park Way, Yosemite, CA 95389 WWTP same agency N 0 0 0 N N Root Intrusion N/A Gravity Mainline N/A None Perusing funding for system upgrades & repairs. 2025 5SSO11323 5F 616 17-MAR-26 Municipal(Public) 420 0 2 1 1 1 1 2 0 0 0 0 0 6 100 0 0 0 0 0 0 0 0 0 0 0 0 0 186 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 5C221002001 Yosemite West MD WWTF, 7168 Yosemite Park Way, Yosemite, CA 95389 WWTP same agency N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Y Y Fats, Oil and Grease (FOG) 0 Gravity Mainline 0 0 Removed large amount of Grease. 2023 4SSO11479 4 616 17-MAR-26 Other 125 45 1 1 1 0 0 0 0 0 0 This facility does not have a sewer plant; the facility has a lift station pumping waste via gravity main to city sewer system. .5 2 6 1 0 0 0 0 7 6 0 0 0 0 0 6 25 25 Upper and Lower 2 100 100 100 100 0 0 0 0 65 465 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 5 0 0 0 4A560105001 Oxnard waste water 6001 Perkins Road, Oxnard, Ca SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a4A N/A 1 1 0 N Y Other (specify below) None to date. Other (specify below) None to date. This facility is closed with limited staff on site. VYCF closed on July 1, 2023. None. No sewage spills or deficiencies to date. This facility is closed with limited staff on site. VYCF closed on July closed on July 1, 2023. 2024 4SSO11479 4 616 17-MAR-26 Other 125 45 1 1 1 0 0 0 0 0 0 This facility does not have a sewer plant, the facility has a lift station pumping waste via gravity main to city sewer system. .5 2 6 1 0 0 0 0 7 6 0 0 0 0 0 6 25 25 Upper and Lower 2 100 100 100 100 0 0 0 0 65 465 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 5 0 0 0 4A560105001 Oxnard wastewater 6001 Perkins , Oxnard, CA 93033 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 1 1 0 N Y Other (specify below) None to date Other (specify below) None to date this facility is closed with limited staff on site VYCF July 1, 2023. None to date No sewage spills or deficiencies to date this facility close with limited staff on site. VYCF closed on July 1, 2023. 2025 4SSO11479 4 616 17-MAR-26 Other 125 45 1 1 1 0 0 0 0 0 0 This facility does not have a sewer plant the facility has a lift station pumping waste to via gravity main to city main sewer system. .5 2 6 1 0 0 0 0 7 6 0 0 0 0 0 6 25 25 Upper and Lower 2 100 100 100 100 0 0 0 0 65 465 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 5 0 0 0 4A560105001 Oxnard waste water 6001 Perkins Rd. Oxnard, CA 93033 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a N/A 1 1 0 N Y Other (specify below) None to date Other (specify below) None to date, this facility closed with limited staff on sight. VYCF closed on July 1, 2023. None No sewage spills or deficiencies to date the facility closed with limited staff on site. VYCF closed on July 1, 2023. 2023 5SSO11480 5S 616 13-DEC-24 Municipal(Public) 8610 1 15 2 2 7 2 1 0 0 10 SWRCB .3 22.6 63 14 20 1 2 0 100 0 100 0 0 0 0 100 2398 2398 Lower only 9 0 0 0 10 90 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .5 11.7 0 5B390107001 Stockton STP - Main Plant, Stockton, CA WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline N/A N/A 2024 5SSO11480 5S 616 30-SEP-25 Municipal(Public) 8610 4 11 2 2 5 3 0 0 0 8 SWRCB .3 22.6 63 14 20 1 2 0 100 0 100 0 0 0 0 100 2398 2398 Lower only 9 0 0 0 10 90 0 0 0 0 100 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 11.7 1.2 5B390107001 001, , Stockton, CA WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline N/A N/A N/A 2025 5SSO11480 5S 616 16-MAR-26 Municipal(Public) 8610 6 11 2 2 5 3 0 0 0 8 SWRCB .3 22.6 63 14 20 1 2 0 100 0 100 0 0 0 0 100 2398 2398 Lower only 9 0 0 0 10 90 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .5 1 1.2 5B390107001 001, , Stockton, CA WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A N/A 2023 2SSO11481 2 616 02-APR-24 Park (w/Campground) 415 0 5 1 1 0 0 0 0 0 0 none 1 1 100 0 0 0 0 0 0 100 0 0 0 0 0 0 4 4 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 2sso10209 Union S.D. CS, 5072 Benson Road, Union City, CA 94587 SSS other agency N 0 0 0 N Y Other (specify below) no reportable sso's on this system Other (specify below) no known failure points none none 2024 2SSO11481 2 616 26-JAN-26 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 none 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 4 4 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 2SSO10209 Union Sanitary District 5072 Benson Road, Union City, CA 94587 SSS other agency N N N none none N none none N none none N none none 0 0 0 N Y Other (specify below) There were no spills from this system, but we can't certify this report without an entry in number 15. Other (specify below) There were no infrastructure failure points on this system, but we can't certify this report without an entry in number 16. none none 2025 2SSO11481 2 616 25-MAR-26 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 NONE 1.5 .2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 4 4 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 2SSO10209 Union Sanitary District 5072 Benson Road, Union City, Ca 94587 SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 0 0 0 N Y Other (specify below) There were no spills from this system during this period. Other (specify below) There were no infrastructure failure points on this system during this period. NONE NONE 2023 5SSO11482 5S 616 13-DEC-24 Municipal(Public) 5841 1 15 2 2 7 2 1 0 0 10 SWRCB 0 16 60 26 10 4 0 0 100 0 0 0 0 0 0 0 1794 1794 Lower only 6.8 0 0 0 0 100 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1.5 13.7 0 5B390107001 Stockton STP- Main Plant, Stockton, CA SSS other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline N/A N/A 2025 5SSO11482 5S 616 16-MAR-26 Municipal(Public) 5841 6 11 2 2 5 3 0 0 0 8 SWRCB 0 16 60 26 10 4 0 0 100 0 0 0 0 0 0 0 1794 1794 Lower only 6.8 0 0 0 0 100 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1.5 13.7 2 5B390107001 001, , Stockton, CA WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A N/A 2023 5SSO11483 5S 616 13-DEC-24 Municipal(Public) 539 1 15 2 2 7 2 1 0 0 10 SWRCB .2 2.5 49 41 0 0 0 0 0 100 0 0 0 0 0 0 149 149 Lower only .6 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.4 0 5B39NC00035 CSA 44-Zone G (Linne), 7701 West Bates Road, Tracy, CA 95304-9154 SSS same agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A 2025 5SSO11483 5S 616 16-MAR-26 Municipal(Public) 539 6 11 2 2 5 3 0 0 0 8 SWRCB .2 2.5 49 41 0 0 0 0 100 100 0 0 0 0 0 100 149 149 Lower only .6 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 5b39nc00035 CSA 44-Zone G (Linne), 7701 West Bates Road, Tracy, CA 95304-9154 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A N/A 2023 5SSO11484 5S 616 13-DEC-24 Municipal(Public) 291 2 15 2 2 7 2 1 0 0 10 SWRCB 0 1.5 40 60 0 0 0 0 100 0 0 0 0 0 0 0 83 83 Lower only .4 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.1 0 5B39NC00005 County Service Area (CSA) 44 Zone E (Castello), 8200 West Waterwell Way, Tracy, CA 95304-8114 SSS same agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A 2025 5SSO11484 5S 616 16-MAR-26 Municipal(Public) 291 6 11 2 2 5 3 0 0 0 8 SWRCB 0 1.5 40 60 0 0 0 0 100 0 0 0 0 0 0 0 83 83 Lower only .4 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1.5 0 5B39NC00005 County Service Area (CSA) 44 Zone E (Castello), 8200 West Waterwell Way, Tracy, CA 95304-8114 WWTP same agency N 0 0 0 Y Y Debris from Lateral Gravity Mainline N/A N/A N/A 2023 5SSO11485 5S 616 06-DEC-24 Municipal(Public) 18 1 15 2 2 7 2 1 0 0 10 SWRCB 5.3 1.5 3 0 94 3 0 0 100 100 0 0 0 0 0 10 18 18 Lower only .4 0 81 18 0 0 0 0 0 1 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5B390103002 001, , Lodi, CA WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A Collection system cleaning, CCTV, repairs 2024 5SSO11485 5S 616 30-SEP-25 Municipal(Public) 18 6 4 2 2 5 3 0 0 0 8 SWRCB 5.3 1.5 3 0 94 3 0 0 100 100 0 0 0 0 0 100 18 18 Lower only .4 0 81 18 0 0 0 0 0 1 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5B390103002 001, , Lodi, CA WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A 2025 5SSO11485 5S 616 16-MAR-26 Municipal(Public) 18 6 6 2 2 5 3 0 0 0 8 SWRCB 5.3 1.5 3 0 94 0 0 0 100 100 0 0 0 0 0 100 18 18 Lower only .4 0 81 18 0 0 0 0 0 1 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5B390103002 001, , Lodi, CA WWTP other agency N 0 0 0 Debris-General Gravity Mainline N/A N/A N/A 2023 5SSO11486 5S 616 06-DEC-24 Municipal(Public) 33 2 15 2 2 7 2 1 0 0 10 SWRCD 0 2 25 54 21 0 0 0 0 0 0 0 0 0 0 0 33 33 Lower only .1 0 0 7 84 0 0 0 0 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5B391008002 CSA 15 - STP, 4327 Waterloo Road, Stockton, CA 95215 WWTP same agency N 0 0 0 N Y Root Intrusion Gravity Mainline N/A Collection system cleaning, cctv inspections, and repairs. 2024 5SSO11486 5S 616 30-SEP-25 Municipal(Public) 33 6 4 2 2 5 3 0 0 0 8 SWRCB 0 2 25 54 21 0 0 0 100 0 0 0 0 0 0 0 33 33 Lower only .1 0 0 7 84 0 0 0 0 9 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5B391008002 CSA 15 - STP, 4327 Waterloo Road, Stockton, CA 95215 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A 2025 5SSO11486 5S 616 16-MAR-26 Municipal(Public) 33 6 4 2 2 5 3 0 0 0 8 SWRCB 0 2 25 54 21 0 0 0 100 0 0 0 0 0 0 0 33 33 Lower only .1 0 0 7 84 0 0 0 0 9 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5B391008002 CSA 15 - STP, 4327 Waterloo Road, Stockton, CA 95215 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline N/A N/A 2023 5SSO11487 5S 616 20-MAR-24 Municipal(Public) 5682 2 8 2 1 0 0 0 0 0 0 n/a 4 36 78 19 2 1 0 0 100 70 30 0 0 0 0 100 2860 0 Lower only 4 11 13 35 41 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 3 8 0 0 0 0 0 11 0 6 1 5b340109001 Rancho Murieta CSD WWT & Rec, 15160 Jackson Road, Rancho Murieta, CA 95683 WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 Y Y Fats, Oil and Grease (FOG) Root Intrusion Pump Station - Mechanical District has had some non-spill related lift station failures, that could have been more serious. All spills and near miss incidents have been investigated and root issues determined. The District is performing CCTV and NASSCO rating of older portions of the system and relaying that information to the District GIS system for ongoing analysis. District is also investing in updating its 13 lift stations with new pumps and updated panels to meet existing and future capacities in a redundant manner. 2024 5SSO11487 5S 616 31-JAN-25 Municipal(Public) 5768 2 8 2 1 0 2 0 0 0 2 N/A 4 36 78 19 2 1 0 0 100 70 30 0 0 0 0 100 2901 0 Lower only 4 11 13 35 41 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 3 8 0 0 0 0 0 11 0 5 3 5B340109001 Rancho Murieta CSD WWT & Rec, 15160 Jackson Road, Rancho Murieta, CA 95683 WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 Y Y Fats, Oil and Grease (FOG) Broken pipe into sewer lift station Manhole n/a n/a The district is performing CCTV and NASSCO rating of older portions of the system and relaying that information to the district GIS system for ongoing analysis. District is also investing in updating its 11 sewer liftstations with new pumps and updated panels to meet existing and future capacities in a redundant manner. 2025 5SSO11487 5S 616 14-MAR-26 Municipal(Public) 5903 5 6 2 1 0 2 0 0 0 2 N/A 4 36 78 19 2 1 0 0 100 70 30 0 0 0 0 100 2923 0 Lower only 4 11 13 35 41 0 0 0 0 0 100 0 0 0 2 0 0 0 0 0 2 0 0 3 8 0 0 0 0 0 11 0 5 3 5B340109001 Rancho Murieta CSD WWT & Rec, 15160 Jackson Road, Rancho Murieta, CA 95683 WWTP same agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 Y Y Fats, Oil and Grease (FOG) Broken pipe into sewer lift station. Manhole n/a n/a The district is performing CCTV and NASSCO rating of older portions of the system. Updating lift stations with new pumps 2023 5SSO11488 5S 616 19-DEC-25 Other 1400 0 17 1 3 0 0 1 0 0 1 N/A 1 4 60 20 20 0 0 0 0 0 0 0 100 0 0 0 58 58 Upper and Lower 3 0 0 30 0 70 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 5B390107001 001, , Stockton, CA SSS other agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Debris-General N/A Other (specify below) Inmate population flushes garbage down the toilets which has caused clogging which has never amounted to a major spill requiring reporting. N/A Notify inmates and staff to not flush garbage down the sewers and perform daily inspections of the lift station. 2024 5SSO11488 5S 616 17-MAR-26 Other 1400 0 17 1 3 0 0 1 0 0 1 N/A 1 4 60 20 20 0 0 0 0 0 0 0 100 0 0 0 58 58 Upper and Lower 3 0 0 30 0 70 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 5B390107001 001, , Stockton, CA SSS other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N N Debris-General N/A Other (specify below) Inmate population flushes garbage down the toilets which has caused clogging which has never amounted to a major spill requiring reporting. N/A Notify inmates and staff to not flush garbage down the sewers and perform daily inspections of the lift station. 2025 5SSO11488 5S 616 17-MAR-26 Other 1400 0 17 1 3 0 0 1 0 0 1 N/A 1 4 60 20 20 0 0 0 0 0 0 0 100 0 0 0 58 58 Upper and Lower 3 0 0 30 0 70 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 5B390107001 001, , Stockton, CA SSS other agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/a 0 0 0 N N Debris-General N/A Other (specify below) Inmate population flushes garbage down the toilets which has caused clogging which has never amounted to a major spill requiring reporting. N/A Notify inmates and staff to not flush garbage down the sewers and perform daily inspections of the lift station. 2023 6SSO11489 6B 616 27-MAR-24 Municipal(Public) 22500 3 3 1 1 3 2 2 0 0 0 N/A 6 145 8 71 19 2 0 0 100 31 1 68 0 0 0 100 9714 0 None 0 0 47 53 0 0 0 0 0 0 100 0 0 3 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 76 3 6B360109001 Victor Valley Wastewater Reclamation Authority 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Completing more sewer cleaning 2024 6SSO11489 6B 616 11-MAR-25 Municipal(Public) 22500 1 3 1 1 2 1 1 1 0 0 N/A 6 145 8 71 19 2 0 0 100 31 1 68 0 0 0 100 9744 0 None 0 0 47 53 0 0 0 0 0 0 100 1 0 2 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 30 9 6B360109001 Victor Valley Wastewater Reclamation Authority 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Complete more frequent sewer cleaning 2025 6SSO11489 6B 616 24-MAR-26 Municipal(Public) 22500 2 4 1 1 3 1 1 1 0 0 N/A 6 145 8 71 19 2 0 0 100 31 1 68 0 0 0 100 9808 0 None 0 0 47 53 0 0 0 0 0 0 100 1 0 2 0 0 0 0 0 0 3 0 1 3 0 0 0 0 0 0 4 0 25.4 4.1 6B360109001 Victor Valley Wastewater Reclamation Authority 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 Y Y Debris-General Gravity Mainline N/A Frequent sewer cleaning 2023 1SSO11491 1 616 13-MAR-24 Municipal(Public) 177245 29 24 7 3 14 16 6 4 0 40 N/A 7 573 35 43 14 5 3 0 100 72 1 12 15 0 0 100 48514 0 None 0 1 18 35 38 8 0 0 0 0 100 5 9 3 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 0 355 65 1SSO11491 Santa Rosa City CS, 69 Stony Circle, Santa Rosa, CA 95401 WWTP same agency Y N South Park Sanitary 1SSO10070 N/A 170 5 31 Y Y Debris-Rags N/A Gravity Mainline N/A N/A N/A 2024 1SSO11491 1 616 06-MAR-25 Municipal(Public) 175140 23 34 7 3 12 16 5 4 0 12 N/A 6.5 574 35 43 14 5 3 0 100 72 1 12 15 0 0 100 50690 0 None 0 1 18 35 38 8 0 0 0 0 100 5 9 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 221.5 65.5 1b83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP same agency Y N South Park Sanitary 1ssO10070 N/A 170 5 31 Y Y Debris-Rags N/A Gravity Mainline N/A N/A N/A 2025 1SSO11491 1 616 25-FEB-26 Municipal(Public) 178127 23 47 7 3 11 14 6 4 0 7 N/a 6.5 575.2 35 43 14 5 3 0 100 72 1 12 15 0 0 100 50839 0 None 0 2 18 36 37 7 0 0 0 0 100 5 9 3 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 0 228.3 89.1 1B83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP same agency Y N South Park Sanitation District 1sso10070 N/A 170 5 31 Y Y Fats, Oil and Grease (FOG) N/A Gravity Mainline N/A None. Progressive/proactive maintenance and CIP. 2023 5SSO11492 5S 616 25-MAR-24 Municipal(Public) 5084 1 1 1 2 0 0 0 0 0 0 NA 1 17 40 47 13 0 0 0 100 85 15 0 0 0 0 100 1679 4 Lower only 8 0 25 6 69 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 1 0 2 0 0 0 0 0 3 0 17 1 4952 City of Turlock SSS other agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Gravity Mainline NA Annual sewer cleaning maintenance. 2024 5SSO11492 5S 616 27-MAR-25 Municipal(Public) 5200 1 1 1 1 0 0 0 0 0 0 2 34 40 47 13 0 0 0 0 85 0 15 0 0 0 0 1680 4 Lower only 3 0 25 6 69 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 1 0 2 0 0 0 0 0 3 0 34 1 4952 Mole-Richardson Company, 937 North Sycamore Avenue, Hollywood, CA 90038 WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline clean sewer mains annually clean bad areas weekly 2025 5SSO11492 5S 616 17-MAR-26 Municipal(Public) 5093 0 3 1 1 0 0 0 0 0 0 2 34 40 47 13 0 0 0 0 85 0 15 0 0 0 0 1680 4 Lower only 3 0 25 6 69 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 1 1 0 2 0 0 0 0 0 4 0 34 2.5 4952 Mole-Richardson Company, 937 North Sycamore Avenue, Hollywood, CA 90038 WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline clean all sewer lines annually monthly cleaning of gravity main trouble locations 2023 9SSO11213 9 616 22-DEC-25 Municipal(Public) 7200 3 4 1 1 3 1 0 3 0 0 NA 0 29 6 88 6 0 0 0 100 0 0 0 0 0 0 0 2200 0 None 0 0 17 13 0 0 0 0 0 70 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP other agency N NA 0 0 1 Y Y Other (specify below) NA - no spills occurred in 2023 Other (specify below) NA - no spills occurred in 2023 NA - no spills occurred in 2023 NA 2024 9SSO11213 9 616 22-DEC-25 Municipal(Public) 7200 2 4 1 1 1 2 1 2 0 1 NA 0 31.1 6 88 6 0 0 0 100 0 0 0 0 0 0 0 2428 0 None 0 1 16 12 0 0 0 0 0 71 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15.4 10.9 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP other agency N 1 0 0 Y Y Other (specify below) NA - no spills occurred in 2024 Other (specify below) NA - no spills occurred in 2024 No NA 2025 9SSO11213 9 616 01-APR-26 Municipal(Public) 9583 1 5 2 1 2 1 1 1 0 1 NA 0 29.5 6 89 5 0 0 0 100 0 0 0 0 0 0 0 2389 0 None 0 0 16 13 0 0 0 0 0 71 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18.1 .6 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP other agency 8 332783001 Temecula Valley Regional Reclamation Facility, 42565 Avenida Alvarado, Temecula CA 92590 SSS other agency N N NA 0 N NA 0 N NA 0 N NA 0 N NA 0 NA 1 0 0 Y Y Other (specify below) No spills in 2025 Other (specify below) No spills in 2025 No NA 2023 6SSO11493 6B 616 16-OCT-24 Municipal(Public) 1396 3 0 1 0 0 0 1 0 0 0 .4 12.7 2 98 0 0 0 0 0 0 100 0 0 0 0 0 956 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 .4 0 0 8 360113001 Running Springs Waster Water Treatment Plant 30505 Old City Crk Rd Running Springs CA 92382 WWTP other agency N 0 0 2 Y Y Other (specify below) No spills Other (specify below) No failures No ongoing spill investigations Daily sight inspections of the two district syphons. Monthly inspections of the collections system. Inspect and clean known flat collections lines. Monitor wet well pumps daily. 2024 6SSO11493 6B 616 04-MAR-25 Municipal(Public) 1396 1 2 1 0 0 0 1 0 0 0 NA .4 12.7 2 98 0 0 0 0 100 0 100 0 0 0 0 100 956 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 .4 0 0 8 360113001 Running Springs Waster Water Treatment Plant 30505 Old City Crk Rd Running Springs CA 92382 WWTP other agency N NA 0 0 2 Y Y Other (specify below) No Spills Other (specify below) No Failures No ongoing spill investigations Daily sight inspections of the two district syphons. Monthly inspections of the collections system. Inspect and clean known flat collections lines. Monitor wet well pumps daily. 2025 6SSO11493 6B 616 25-MAR-26 Municipal(Public) 1396 1 2 1 0 1 0 1 0 0 0 .4 12.7 2 98 0 0 0 0 100 0 100 0 0 0 0 100 956 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 8 360113001 Running Springs Waster Water Treatment Plant 30505 Old City Crk Rd Running Springs CA 92382 WWTP other agency N 0 0 2 Y Y Other (specify below) No Spills Other (specify below) No Failures No Spills, No Investigations Because repairs and video inspections in 2025 did not occur at the planned quantity, 2026 projects are being pushed so that we can catch up. 2023 6SSO11376 6B 616 02-APR-24 Municipal(Public) 533 0 7 1 0 5 1 1 0 0 1 None 0 2 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 6B361502002 VVWRA 20111 Shay Rd, Victorville, CA 92394 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, Fats, oil and grease, wipes/non-disposables, roots, Other (specify below) Manholes, laterals None None 2024 6SSO11376 6B 616 03-DEC-25 Municipal(Public) 359 7 7 1 0 5 2 1 0 0 0 None 0 1.5 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.5 0 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N None 0 0 0 N Y Other (specify below) Debris from laterals, fats, oil and grease, wipes/non-disposables, roots Manhole None None None 2023 6SSO11377 6B 616 02-APR-24 Municipal(Public) 870 0 7 1 0 5 1 1 0 0 1 None 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease, roots Other (specify below) Laterals, manholes None None 2024 6SSO11377 6B 616 03-DEC-25 Municipal(Public) 870 7 7 1 0 5 2 1 0 0 0 None 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N N/A N/A None 0 0 0 N Y Operator Error (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease, roots Other (specify below) Laterals, manholes None None 2023 6SSO11378 6B 616 04-DEC-25 Municipal(Public) 2957 0 7 1 0 5 1 1 0 0 1 None 0 10 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 6B360101001 2200 E Riverside Dr Barstow, CA, 92311 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease, roots Other (specify below) Manholes, laterals None None 2024 6SSO11378 6B 616 03-DEC-25 Municipal(Public) 2957 7 7 1 0 5 2 1 0 0 0 None 0 0 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 6B360101001 Barstow WWTP, 2200 E Riverside Dr , Barstow, CA 92311 WWTP other agency N None 0 0 0 N Y Other (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease, roots Other (specify below) Manholes, laterals Nonee Regular cleaning and CCTV 2023 6SSO11379 6B 616 02-APR-24 Municipal(Public) 14870 0 7 1 0 5 1 1 0 0 1 None 1 36 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 10 0 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 0 0 0 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N None 5 0 0 N Y Other (specify below) Lateral debris, power failure, vandalism, Fats, oil and grease (FOG) Manhole None None None 2024 6SSO11379 6B 616 03-DEC-25 Municipal(Public) 14715 7 7 1 0 5 2 1 0 0 0 None 1 36 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 10 0 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 0 14.2 8.4 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N None 5 0 0 N Y Other (specify below) Lateral debris, power failure, vandalism, fats, oil and grease Manhole None None None 2023 5SSO20008 5F 616 13-NOV-25 Municipal(Public) 65702 1 18 2 2 1 0 0 0 0 0 N/A 100 200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 300 300 0 0 0 0 0 0 0 0 20 20 0 0 0 0 0 0 0 0 4 4 0 35 5 5D540107001 Porterville WWTF, 555 Prospect , Porterville, CA 93257 WWTP same agency N 0 0 0 0 0 0 0 0 0 0 N/A 0 0 0 Y N Debris-General N/A Gravity Mainline N/A N/A N/A 2023 5SSO20008 5F 616 13-NOV-25 Municipal(Public) 65702 1 18 2 2 1 0 0 0 0 0 N/A 100 200 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 19.6 5 5D540107001 Porterville WWTF, 555 Prospect , Porterville, CA 93257 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 0 N Y Debris-General n/a Gravity Mainline N/A N/A N/A 2024 5SSO20008 5F 616 13-NOV-25 Municipal(Public) 65702 1 18 2 2 1 0 0 0 0 0 N/A 100 200 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 35 5 5D540107001 Porterville WWTF, 555 Prospect , Porterville, CA 93257 WWTP same agency N N N 0 0 N 0 0 N 0 0 N 0 0 N/A 0 0 0 N Y Debris-General N/A Gravity Mainline N/A N/A N/A 2025 5SSO20008 5F 616 20-MAR-26 Municipal(Public) 65702 1 18 2 2 1 0 0 0 0 0 N\A 1.8 186.4 31 0 42 13 14 100 100 0 0 0 0 0 100 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 100 0 30.7 5 5D540107001 Porterville WWTF, 555 Prospect , Porterville, CA 93257 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 N\A 0 0 0 N Y Debris-General N\A Gravity Mainline N\A N\A N\A 2023 9SSO11197 9 616 24-DEC-25 Prison 3982 0 6 3 1 0 0 0 0 0 0 Richard J Donovan Correctional Facility has a lift system and disposal is handled by an outside contractor Diamond environmental Waste Management Services, via state contract; that disposes of all sewer trash collected in a dumpster and transported to an offsite Waste disposal facility, Plant operations staff maintain sewer grinder components only. Staff Meet contractor at Lift station when disposal is needed. Testing and a sniffer monitor have been purchased samples are being taken and provided for testing and compliance. The wastewater generated by Richard J. Donovan Correctional Facility is received, processed and treated by the city of San Diego, Otay Mesa water district. 0 5.5 70 10 20 0 0 0 100 0 0 0 0 10 0 10 50 50 Upper and Lower 5.5 100 100 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 10 2.5 .5 0 9SSO1119 480 Alta Rd. San Diego Ca. 92179 WWTP other agency N N N/A N N/A 0 N N/A 0 N N/A 0 N N/A 0 N/A 0 0 0 N Y Debris-General There have been no sewer spills for this reporting period. Lower Lateral N/A There are no active or ongoing spills. N/A 2023 5SSO11497 5S 616 22-DEC-25 Municipal(Public) 100 1 6 1 1 1 2 0 0 0 3 2 0 0 0 0 0 0 0 100 100 0 0 0 0 0 100 40 40 Upper and Lower 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ` ` WWTP same agency N 0 0 0 N Y Fats, Oil and Grease (FOG) Force Main none Routine maintenance or STEP tanks and valave chases to ensure valave working property. Will be looking into pipe pigging operation in the next 2-3 years. 2024 5SSO11497 5S 616 23-DEC-25 Municipal(Public) 100 1 6 1 1 1 2 0 0 0 3 2 0 0 0 0 0 0 0 100 100 0 0 0 0 0 100 40 40 Upper and Lower .3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11497 11871 Lowhills Road, Nevada City CA 95959 WWTP same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) Force Main none routine maintenance and working on a pipe pigging operation for forcemain in next 1-2 years. 2025 5SSO11497 5S 616 31-MAR-26 Municipal(Public) 100 1 6 1 1 1 2 0 0 0 3 2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 40 40 Upper and Lower .3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11497 11871 Lowhills Road, Nevada City CA 95959 WWTP same agency N 0 0 0 N Y Pipe Structural Problem/Failure - Controls Force Main none Routine maintenance and pipe pigging operation in next 1-2 years 2023 5SSO11225 5F 616 28-MAR-24 Municipal(Public) 8900 0 0 1 0 1 0 0 0 0 0 1 15 28 51 21 1 0 0 101 0 0 1 0 0 0 1 1309 1309 Lower only 8 2 0 98 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5D540102001 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spill happen in 2023 Other (specify below) No major spill happen in 2023 0 0 2023 5SSO11217 5F 616 29-MAR-24 Municipal(Public) 4156 0 0 0 0 0 0 0 0 0 0 Armona CSD only employs office staff. Field operations, treatment operations, and management are provided under contract by Granger Water Specialties CO#0078 1 9 63 23 14 0 0 0 100 100 0 0 0 0 0 100 1366 0 None 0 11 18 44 27 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 100 0 10 2 5D160100001 Armona CSD WWTF, 13545 Hume Avenue, Hanford, CA 93230 WWTP same agency N 0 0 0 Y Other (specify below) No Spills Other (specify below) No Failures None Ongoing maintenance 2023 5SSO11214 5F 616 29-MAR-24 Municipal(Public) 124523 2 7 1 2 0 2 2 1 0 9 10 435 7 72 16 4 1 0 100 9 1 77 13 0 0 100 37769 50 Upper and Lower 1 7 33 30 26 4 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 1 3 0 1 0 0 0 0 0 5 1 368 9 5D100105001 Fresno Clovis Regional WWTP WWTP other agency 5C10NP00012 001, , Clovis, CA WWTP same agency 5SSO11214 Clovis City CS, , Clovis, CA 93612 SSS same agency 5SSO11202 City of Fresno CS, , Fresno, CA SSS other agency N 82 10 0 Y Y Debris from Construction Pump Station - Mechanical None, no ongoing investigations The City actively maintains a sewer system hydraulic model that is used to evaluate trunkline capacities and proactively locate potential system deficiencies. Additionally, the City has a current wastewater system master plan that identified improvements to meet future capacity needs. These documents, combined with an active CCTV program, allow the City to address potential deficiencies as part of a proactive monitoring program. 2024 5SSO11214 5F 616 31-MAR-25 Municipal(Public) 126133 2 7 1 2 0 4 2 1 0 9 11.8 438.1 7 72 16 4 1 0 100 7 11 71 11 0 0 100 37673 51 Upper and Lower 1 8 32 30 26 4 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 1 3 0 1 0 0 0 0 0 5 1 367 16 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP other agency 5C10NP00012 001, , Clovis, CA WWTP same agency N 82 10 0 Y Y Debris from Construction Pump Station - Mechanical None, no on-going investigations. The City actively maintains a sewer system hydraulic model that is used to evaluate trunkline capacities and proactively locates potential system deficiencies. Additionally, the City has a current wastewater system master plan that identified improvements to meet future capacity needs. These documents, combined with an active CCTV program, allow the City to address potential deficiencies as part of a proactive monitoring program. 2025 5SSO11214 5F 616 27-MAR-26 Municipal(Public) 129121 2 7 1 2 0 3 2 1 0 6 11.8 438.1 7 72 16 4 1 0 100 7 11 71 11 0 0 100 39144 51 Upper and Lower 1 8 32 30 26 4 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 1 3 0 1 0 0 0 0 0 5 1 367 16 5D100105001 Fresno Regional WWTF, 5607 Jensen , Fresno, CA 93706 WWTP other agency 5C10NP00012 001, , Clovis, CA WWTP same agency N 82 10 0 Y Y Debris from Construction Pump Station - Mechanical None, no ongoing spill investigations. The City actively maintains a sewer system hydraulic model that is used to evaluate trunkline capacities and proactively locates potential system deficiencies. Additionally, the City has a current wastewater system master plan that identified improvements to meet future capacity needs. These documents, combined with an active CCTV program, allow the City to address potential deficiencies as part of a proactive monitoring program. 2023 5SSO11500 5S 616 22-MAR-24 Municipal(Public) 160 1 2 2 2 4 2 1 2 0 0 Our Collections System Operators also hold Distribution Certificates, as do our Mechanics, Operators, Utility Crew, Construction Crew, and Electricians. 6 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 134 67 Lower only 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 8 5 6 5B050100002 Angels City WWTP, 3000 Centennial Road, Angels Camp, CA 95222 WWTP same agency N 1 1 0 Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Also had a spill related to a natural disaster - DR-4699 Atmospheric River Storm Emergency. Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Super-saturated soil near a cleanout resulted in a failure and subsequent spill. - removed the cleanout upon repair. None. Added NaOH at the Sewer Lift Station 2024 5SSO11500 5S 616 19-DEC-25 Municipal(Public) 160 3 1 1 2 2 1 0 1 0 0 Our Collections system Operators also hold Distribution 6 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 134 67 Lower only 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 8 5 5 5B050100002 Angels City WWTP, 3000 Centennial Road, Angels Camp, CA 95222 WWTP other agency N 1 1 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Force Main Force main was damaged by PGE subcontractor replacing power pole none Continued NaOH addition to lift station 2025 5SSO11500 5S 616 23-MAR-26 Municipal(Public) 160 1 3 1 2 2 1 0 1 0 5 Our Collections system Operators also hold Distribution certificates. 6 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 134 67 Lower only 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 8 0 0 5B050100002 Angels City WWTO, 3000 Centennial Road, Angels Camp CA 95222 WWTP other agency N N N 0 0 N 0 0 N 0 0 N 0 0 1 1 0 N N Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Force Main None Continued NaOH addition to the lift station. Installed new ARVs where needed and increased inspections of ARVs. 2023 5SSO11231 5F 616 27-MAR-24 Municipal(Public) 80 3 1 1 1 0 0 0 0 0 1 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 17 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 4 0 1 0 5D150303023 Kern Cnty Buena Vista Aquatic Rec Area, , CA WWTP same agency N 0 1 0 N Y Debris from Lateral Pump Station - Power NA NA 2024 5SSO11231 5F 616 23-JAN-26 Municipal(Public) 80 3 2 1 1 2 0 0 0 0 2 2 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 17 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 4 0 2 0 5D150303023 Kern Cnty Buena Vista Aquatic Rec Area, , CA WWTP same agency N 0 1 0 Y Y Pump Station Failure - Power Pump Station - Power NA NA 2025 5SSO11231 5F 616 04-FEB-26 Municipal(Public) 80 0 4 1 1 1 0 0 0 0 0 NA 2 0 0 0 0 0 0 0 0 100 0 0 0 0 0 100 17 0 None 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 5D150303023 Kern Cnty Buena Vista Aquatic Rec Area, , CA WWTP same agency N NA 0 1 0 Y Y Pump Station Failure - Power NA Pump Station - Mechanical NA NA NA 2023 5SSO11355 5F 616 16-DEC-25 Park (w/Campground) 300 2 4 1 0 0 0 0 0 0 0 0 0 1.7 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 None 0 0 0 12 38 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .7 1.7 0 5C550700003 White Wolf Wastewater Treatment Facility, Whitewolf Camp , Yosemite Natl Park, CA 95389 WWTP same agency N N 0 0 0 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2024 5SSO11355 5F 616 15-DEC-25 Municipal(Public) 300 3 5 1 0 0 0 0 0 0 0 One operator possesses a Gade III Wastewater License .5 1.7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 100 12 38 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 .7 0 1 0 0 SSS same agency N N 0 0 0 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2025 5SSO11355 5F 616 16-JUN-26 Municipal(Public) 300 3 5 1 0 0 0 1 0 0 0 .5 1.7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 12 38 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 .7 0 0 5c550700003 White Wolf WWTF, Whitewolf Camp , Yosemite Natl Park, CA 95389 WWTP same agency N N 0 0 0 0 0 0 Y Y Other (specify below) NA Other (specify below) NA NA NA 2023 5SSO11473 5F 616 04-FEB-26 Prison 2715 0 5 1 2 0 3 1 0 1 1 COS/ CSUB 0 6 50 16 34 0 0 0 100 0 0 0 0 0 0 0 122 122 Upper and Lower 2 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R5-2007-0090 WWTP same agency N 0 0 0 Y Other (specify below) None Gravity Mainline N/A N/A N/A 2024 5SSO11473 5F 616 04-JUN-26 Prison 2965 0 5 1 2 0 3 1 0 1 1 COS/CSUB 0 6 50 16 34 0 0 0 100 0 0 0 0 0 0 0 122 122 Upper and Lower 2 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5sso11473 Lamont Recycled Water Project, 6525 Bear Mountain , Lamont, CA WWTP same agency N 0 0 0 N Y Other (specify below) None Gravity Mainline N/A N/A N/A 2025 5SSO11473 5F 616 04-JUN-26 Prison 3209 0 5 1 2 0 3 1 0 1 1 0 0 50 16 34 0 0 0 100 0 0 0 0 0 0 0 122 122 Upper and Lower 2 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5sso11473 Lamont Recycled Water Project, 6525 Bear Mountain , Lamont, CA WWTP same agency N 0 0 0 Other (specify below) None Gravity Mainline N/A N/A N/A 2023 8SSO20042 8 616 04-APR-24 Municipal(Public) 37714 1 2 1 1 1 2 0 0 0 0 N/A 0 87 0 85 10 5 0 0 100 0 0 0 0 0 0 0 9182 50 None 1 3 3 18 72 4 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87 0 8 332818001 6075 Kimball Avenue Chino, CA 91708 WWTP other agency N N N/A 0 0 1 N N Fats, Oil and Grease (FOG) N/A Other (specify below) There has not been any infrastructure failure. N/A The City is proactive in maintenance to prevent deficiencies. It is active in daily sewer cleaning, conducts monthly hot spot cleaning, and has an ongoing City Capital Improvement Plan for upgrading and maintaining City sewer mainlines. 2023 8SSO20042 8 616 01-FEB-24 Municipal(Public) 37714 1 2 1 1 1 2 0 0 0 0 N/A 0 87 0 85 10 5 0 0 100 0 0 0 0 0 0 0 9182 50 None 0 3 3 18 72 4 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87 0 8332818001 6075 Kimball Avenue Chino, CA 91708 WWTP other agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 1 N N Fats, Oil and Grease (FOG) N/A Other (specify below) There has not been any infrastructure failure. N/A The city is proactive in maintenance to prevent any deficiencies. The city is active in daily sewer cleaning, conducts monthly hot spot cleaning, and has an ongoing City Improvement Plan for upgrading and maintaining City sewer mainlines. 2024 8SSO20042 8 616 21-MAR-25 Municipal(Public) 37865 2 0 1 1 2 0 0 0 0 0 N/A 0 87 0 85 10 5 0 0 100 0 0 0 0 0 0 0 9186 52 Upper and Lower 1 3 3 18 72 4 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 108 0 8SSO10580 IUEA 6075 Kimball Ave, Chino, CA 91708 WWTP other agency Y N City of Upland 8SSO10564 N/A 0 0 1 N Y Other (specify below) There have been no major spills in Montclair for the FY 2023-24 Other (specify below) N/A The city has not had any infrastructure failures for FY 2023-24 None The City has upgraded the sewer mainline on Monte Vista Avenue, under the I-10 FWY. Additionally, the City has updated its Sewer Master Plan and identified sewer mainlines that will require upsizing. Furthermore, the City is proactive in maintenance to prevent any deficiencies. The City is active in daily sewer cleaning, conducts monthly hot spot cleaning, and has an ongoing City Improvement Plan for upgrading and maintaining City sewer mainlines. 2025 8SSO20042 8 616 19-MAR-26 Municipal(Public) 37650 3 1 1 1 3 0 0 0 0 0 N/A 0 87 0 85 10 5 0 0 100 0 0 0 0 0 0 0 9186 52 Lower only 1 3 3 18 72 4 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 36.3 .7 Sanitary Sewer IUEA 6075 Kimball Ave, Chino, CA 91708 WWTP other agency Y N City of Upland 8SSO10564 N/A 0 0 1 Y Y Other (specify below) There have been no major spills in Montclair for the FY 2024-25 Other (specify below) N/A - The city has not had any infrastructure failures for FY 2024-25 None The City has updated its Sewer Master Plan and identified sewer mainlines that will require upsizing. Furthermore, the City is proactive in maintenance to prevent any deficiencies. The City is active in daily sewer cleaning, conducts monthly hot spot cleaning, and has an ongoing City Improvement Plan for upgrading and maintaining City sewer mainlines. 2025 5SSO11502 5S 616 01-JUN-26 Other 0 0 0 0 0 0 0 0 0 0 0 0 .2 3 50 3500 50 0 0 0 0 100 0 5000 0 0 0 0 250 250 Upper and Lower 2 0 0 0 50 0 0 0 25 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5B03802002 Mule Creek WWTP same agency N PRESTON YOUTH FACILITY 5SSO11502 CAL FIRE TRAINING FACILITY 5B03802002 1 1 0 N Y Pump Station Failure - Power none Pump Station - Power none none none 2023 8SSO11502 8 616 31-DEC-25 Municipal(Public) 7800 0 0 0 1 0 0 0 0 0 0 0 0 17 15 67 14 0 0 4 100 0 0 0 0 0 0 0 1054 1054 Lower only 4 1 9 6 11 69 0 0 0 4 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 0 330117003 001, , Riverside, CA SSS other agency N N/A 0 0 1 Y Fats, Oil and Grease (FOG) N/A Manhole N/A None Additional line cleaning 2024 8SSO11502 8 616 31-DEC-25 Municipal(Public) 7800 0 0 0 1 0 0 0 0 0 0 0 0 17 15 67 14 0 0 4 100 0 0 0 0 0 0 0 1054 1054 Lower only 4 1 9 6 11 69 0 0 0 4 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 21 330117003 001, , Riverside, CA SSS other agency N N/A 0 0 1 Y Fats, Oil and Grease (FOG) N/A Manhole N/A None Additional line cleaning 2025 8SSO11502 8 616 16-MAR-26 Municipal(Public) 7800 0 0 0 1 0 0 0 0 0 0 0 0 17 15 67 14 0 0 4 100 0 0 0 0 0 0 0 1054 1054 Lower only 4 1 9 6 11 69 0 0 0 4 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 0 8SSO10560 Riverside City CS, Riverside, CA 92504 SSS other agency N N/A 0 0 1 Y Fats, Oil and Grease (FOG) N/A Manhole N/A None Additional line cleaning 2023 5SSO11318 5F 616 04-MAR-24 Municipal(Public) 139 2 8 3 1 0 0 0 0 0 0 0 0 3 57 44 16 0 0 0 7461 0 0 0 0 0 0 0 42 42 Upper and Lower 0 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 5C200102002 Madera Cnty #6-Lake Shore Park WWTF, Co Rd 274 , Bass Lake, CA 93604 WWTP same agency N 0 0 0 0 0 0 0 0 0 0 0 N N Root Intrusion NA Gravity Mainline NA NA NA 2025 5SSO11318 5F 616 16-MAR-26 Municipal(Public) 139 4 11 3 2 0 0 0 0 0 0 N/A 0 1.4 60 40 0 0 0 0 0 0 0 0 0 0 0 0 42 42 Upper and Lower 0 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.2 0 5C200102002 Madera Cnty #6-Lake Shore Park WWTF, Co Rd 274 , Bass Lake, CA 93604 WWTP same agency N 0 0 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11363 5S 616 03-APR-24 Municipal(Public) 7251 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 4 25 68 20 12 0 0 0 100 5 0 95 0 0 0 100 1865 0 None 0 0 87 1 6 0 0 0 0 6 100 2 1 0 0 0 0 0 0 0 3 0 1 0 1 0 0 0 0 0 2 0 2 1 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville, CA 95747 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) N/A. No SSOs in 2023. Other (specify below) N/A. No SSOs in 2023. N/A. No SSOs in 2023. N/A. No SSOs in 2023. 2024 5SSO11363 5S 616 31-MAR-25 Municipal(Public) 7251 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 5 30 67 22 11 0 0 0 100 6 0 94 0 0 0 100 1865 0 None 0 23 72 0 5 0 0 0 0 0 100 2 1 0 0 0 0 0 0 0 3 0 1 0 1 0 0 0 0 0 20 0 22 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N N/A 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2024. Other (specify below) N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. 2025 5SSO11363 5S 616 26-MAR-26 Municipal(Public) 9917 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 6 35 65 24 10 1 0 0 100 6 0 94 0 0 0 100 2556 0 None 0 21 72 0 5 0 0 0 0 0 100 2 1 0 0 0 0 0 0 0 3 0 1 0 1 0 0 0 0 0 2 0 1 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2025. Other (specify below) N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. 2023 5SSO11362 5S 616 04-APR-24 Municipal(Public) 18750 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 1 121 75 13 12 0 0 0 100 100 0 0 0 0 0 100 6495 0 None 0 0 13 46 26 0 0 0 0 15 100 0 0 0 0 0 0 0 0 0 0 1 0 4 3 0 0 0 0 0 8 0 22 2 5SSO010935 City of Roseville Collection System, 2005 Hilltop Circle, Roseville, CA 95747 SSS other agency Y Y SMD3, 3091 County Center Drive, Auburn, CA 95603 5SSO11029 21 1 1 Y Y Other (specify below) No major spills in 2023. Major spills defined as a Category 1 greater than 50 gallons. Other (specify below) None. No major spills in 2023. Major spills defined as a Category 1 greater than 50 gallons. None. No major spills in 2023. Major spills defined as a Category 1 greater than 50 gallons. None. No major spills in 2023. Major spills defined as a Category 1 greater than 50 gallons. 2024 5SSO11362 5S 616 31-MAR-25 Municipal(Public) 1468 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 4 125 75 13 12 0 0 0 100 40 0 60 0 0 0 100 6495 0 None 0 3 15 45 26 9 0 0 0 2 100 0 0 0 0 0 0 0 0 0 0 1 0 4 3 0 0 0 0 0 8 0 34 21 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N Y SMD3, 3091 County Center Drive, Auburn CA 95603 5SSO11029 N/A 21 1 1 Y Y Other (specify below) N/A. No major spills occurred during this reporting period. Other (specify below) N/A. No major spills occurred during this reporting period. N/A. No major spills occurred during this reporting period. N/A. No major spills occurred during this reporting period. 2025 5SSO11362 5S 616 26-MAR-26 Municipal(Public) 18858 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 4 126 74 14 12 0 0 0 100 40 0 60 0 0 0 100 6548 0 None 0 3 15 45 26 9 0 0 0 2 100 0 0 0 0 0 0 0 0 0 0 1 0 4 3 0 0 0 0 0 8 0 45 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency Y Y SMD3, 3091 County Center Drive, Auburn CA 95603 5SSO11029 21 1 1 Y Y Root Intrusion Manhole The investigation concluded that point repair was sufficient to prevent future root intrusion. No further action required at this time 2023 5SSO11361 5S 616 03-APR-24 Municipal(Public) 0 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 3 8 17 37 37 9 0 0 100 100 0 0 0 0 0 100 136 0 None 0 0 27 40 25 0 0 0 0 8 100 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 3 0 1 1 5SSO10935 City of Roseville, 2005 Hilltop Circle, Roseville, CA 95747 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) N/A. No SSOs in 2023. Other (specify below) N/A. No SSOs in 2023. N/A. No SSOs in 2023. N/A. No SSOs in 2023. 2024 5SSO11361 5S 616 31-MAR-25 Municipal(Public) 0 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 3 8 18 36 36 10 0 0 100 100 0 0 0 0 0 100 136 0 None 0 0 28 72 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N N/A 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2024. Other (specify below) N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. 2025 5SSO11361 5S 616 26-MAR-26 Municipal(Public) 0 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 3 8 13 38 39 0 0 0 100 100 0 10 0 0 0 100 140 0 None 0 0 29 40 25 0 0 0 0 6 100 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 3 0 8 7 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2025. Other (specify below) N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. 2023 5SSO11193 5S 616 03-APR-24 Municipal(Public) 602 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 225 0 None 0 0 4 18 53 0 0 0 0 25 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5SSO10912 Sacramento Area Sanitation District, 10060 Goethe Rd, Sacramento, CA 95827 SSS other agency 5SSO10935 City of Roseville, 2005 Hilltop Circle, Roseville, CA 95747 SSS other agency N N/A 0 0 0 Y Y Other (specify below) N/A. No SSOs in 2023. Other (specify below) N/A. No SSOs in 2023. N/A. No SSOs in 2023. N/A. No SSOs in 2023. 2024 5SSO11193 5S 616 31-MAR-25 Municipal(Public) 602 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 225 0 None 0 0 5 35 54 0 0 0 0 6 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency 5SSO10935 Sacramento Area Sanitation District 10060 Geothe Rd Sacramento, CA SSS other agency N N/A 0 0 0 Y N Other (specify below) N/A. No Major Spills in 2024. Other (specify below) N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. 2025 5SSO11193 5S 616 26-MAR-26 Municipal(Public) 617 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 231 0 None 0 0 5 35 54 0 0 0 0 6 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency 5SSO10935 Sacramento Area Sanitation District 10060 Geothe Rd Sacramento, CA SSS other agency N 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2025. Other (specify below) N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. 2023 5SSO11215 5F 616 24-DEC-25 Municipal(Public) 9500 2 3 2 1 1 2 0 0 0 0 4 38 2 50 48 0 0 0 100 0 0 100 0 0 0 100 2520 0 None 0 6 35 28 18 13 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 3 38 38 0 5B24NP00017 Atwater Regional DP 001, , CA WWTP other agency N n/a 0 0 0 N Y Other (specify below) No spills Other (specify below) no failures none routine mainline flushing and lift station cleaning 2024 5SSO11215 5F 616 24-DEC-25 Municipal(Public) 9500 2 3 2 1 1 2 0 0 0 0 4 38 2 50 48 0 0 0 100 0 0 100 0 0 0 100 2520 0 None 0 6 35 28 18 13 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 3 0 38 0 5B24NP00017 Atwater Regional DP 001, , CA WWTP other agency N 0 0 0 N Y Other (specify below) No spills Other (specify below) no failures none Routine mainline flushing and lift station cleaning 2023 5SSO20040 5F 616 02-APR-24 Municipal(Public) 731 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 0 3 60 40 0 0 0 0 100 100 0 0 0 0 0 100 201 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540136003 Traver WWTF, Road 44 at Avenue 36B , Traver, CA 93631 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigations No action taken 2023 5SSO20040 5F 616 26-JAN-24 Municipal(Public) 731 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 0 3 60 40 0 0 0 0 100 100 0 0 0 0 0 100 201 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5SS011258 Traver WWTP WWTP same agency N 0 0 0 N N Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigation No action taken 2024 5SSO20040 5F 616 12-MAR-26 Municipal(Public) 731 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment operators through the State Water Resources Control Board 1 3 60 40 0 0 0 0 100 100 0 0 0 0 0 100 201 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5d540136003 Traver WWTF, Road 44 at Avenue 36B , Traver, CA 93631 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points no ongoing spill investigation no actions taken 2025 5SSO20040 5F 616 12-MAR-26 Municipal(Public) 731 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State water Resources Control Board 0 3 60 40 0 0 0 0 100 100 0 0 0 0 0 100 201 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5d540136003 Traver WWTF, Road 44 at Avenue 36B , Traver, CA 93631 WWTP same agency N 0 0 0 Y Y Other (specify below) No major spills Other (specify below) no failure points no ongoing spill investigations no action taken 2023 5SSO11503 5S 616 13-MAR-24 Municipal(Public) 200 0 2 0 2 2 0 1 0 0 0 n/a 3 12 50 50 0 0 0 0 0 50 50 0 0 0 0 0 845 845 Upper and Lower 5 0 10 0 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 5A290105001 Donner Summit PUD WWTP other agency N 0 3 0 N Y Pump Station Failure - Controls Pump Station - Power none none 2024 5SSO11503 5S 616 14-JAN-25 Municipal(Public) 200 0 2 0 2 2 0 1 0 0 0 3 12 50 50 0 0 0 0 100 50 50 0 0 0 0 100 845 845 Lower only 5 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 5A290105001 001, , Soda Springs, CA WWTP other agency N no 0 3 0 N Y Pump Station Failure - Controls Pump Station - Power none none 2025 5SSO11503 5S 616 13-JAN-26 Municipal(Public) 200 0 2 0 4 2 0 1 0 0 1 no 2 5 50 50 0 0 0 0 100 50 50 0 0 0 0 100 845 845 Lower only 10 0 10 0 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5A290105001 001, , Soda Springs, CA SSS other agency N 0 3 0 N Y Operator Error (specify below) n/a Other (specify below) n/a n/a nn/a 2023 5SSO20033 5F 616 31-MAR-26 Municipal(Public) 7784 1 3 1 1 0 3 0 0 0 3 Michael Hansen - WWTF Operator in Training 2.2 22.3 41500 41545 16358 0 0 0 99403 42 42 16 0 0 0 100 2334 1 Upper and Lower 0 0 40 60 0 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 2 2.2 11.4 .9 5SSO20033 Delhi CWD CS, , Delhi, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 1 0 0 Y Y Pump Station Failure - Mechanical None Pump Station - Mechanical None None None 2023 5SSO20033 5F 616 23-APR-24 Municipal(Public) 7784 1 3 1 1 0 3 0 0 0 3 Michael Hansen - WWTF Operator in Training. 2.2 22.3 41500 41545 16358 0 0 0 99403 42 42 16 0 0 0 100 2334 1 Upper and Lower 0 0 40 60 0 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 2 2.2 11.4 .9 5SSO20033 Delhi CWD CS, , Delhi, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 0 0 N Y Pump Station Failure - Mechanical N/A Pump Station - Mechanical N/A None None 2024 5SSO20033 5F 616 01-APR-26 Municipal(Public) 7784 1 3 1 1 0 3 0 0 0 3 Michael Hansen Grade 1 - No. 77424 - Expires 05/15/2027 Doug Paulson Grade 1 - No. 10037 - Expires 06/30/2029 Nick Paulson Grade 1 - No. 41956 - Expires 03/20/2029 Philip Paulson Grade 2 - No. 43151 - Expires 07/03/2027 2.2 22.3 41500 41545 16358 0 0 0 99403 42 42 16 0 0 0 100 2334 1 Upper and Lower 0 0 40 60 0 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 2 2.2 11.4 .9 5SSO11283 Delhi CWD CS, , Delhi, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None 1 0 0 Y Y Pump Station Failure - Mechanical None. Pump Station - Mechanical None. No, ongoing spill investigations. No action needed at this time for system deficiencies. 2025 5SSO20033 5F 616 01-APR-26 Municipal(Public) 7784 1 3 1 1 3 1 0 0 0 4 Michael Hansen Grade 1 - No. 77424 - Expires 05/15/2027 Doug Paulson Grade 1 - No. 10037 - Expires 06/30/2029 Nick Paulson Grade 1 - No. 41956 - Expires 03/20/2029 Philip Paulson Grade 2 - No. 43151 - Expires 07/03/2027 2.2 22.3 41500 41545 16358 0 0 0 99403 42 42 16 0 0 0 100 2334 1 Upper and Lower 0 0 40 60 0 0 0 0 0 0 100 0 2 2 0 0 0 0 0 0 4 0 0 2 0 0 0 0 0 0 2 2.2 11.4 .9 5SSO11283 Delhi CWD CS, , Delhi, CA WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A None. 1 0 0 Y Y Pump Station Failure - Mechanical None. Pump Station - Mechanical None. No, ongoing spill investigations. No, action needed for system deficiencies. 2023 5SSO11320 5F 616 04-MAR-24 Municipal(Public) 274 2 8 3 1 0 0 0 0 0 0 0 0 1 97 3 16 0 0 0 7285 1 0 0 0 0 0 0 83 83 Upper and Lower 0 0 0 10 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 5C200102009 Madera Cnty #7-Marina View Heights WWTF, Co Rd 274 , Bass Lake, CA 93604-9722 WWTP same agency N 0 0 0 0 0 0 0 0 NA 0 0 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11320 5F 616 16-MAR-26 Municipal(Public) 274 4 11 3 2 0 0 0 0 0 0 N/A 0 0 99 1 0 0 0 0 100 0 0 0 0 0 0 83 83 Upper and Lower 0 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1.4 0 5C200102009 Madera Cnty #7-Marina View Heights WWTF, Co Rd 274 , Bass Lake, CA 93604-9722 WWTP same agency N 0 0 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11316 5F 616 04-MAR-24 Municipal(Public) 528 2 8 3 1 0 0 0 0 0 0 NA 0 1 99 1 0 0 0 0 15810 0 0 0 0 0 0 0 260 260 Upper and Lower 0 0 0 10 99 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5C200102004 Madera Cnty #8A-North Fork WWTF, Ridge Road, North Fork, CA 93643 WWTP same agency N 0 0 0 0 0 0 0 0 NA 0 0 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11316 5F 616 16-MAR-26 Municipal(Public) 858 4 11 3 2 0 0 0 0 0 0 N/A 0 2.9 99 1 0 0 0 0 100 0 0 0 0 0 0 0 260 260 Upper and Lower 0 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2.9 2 5C200102004 Madera Cnty #8A-North Fork WWTF, Ridge Road, North Fork, CA 93643 WWTP same agency N 1 0 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11315 5F 616 04-MAR-24 Municipal(Public) 3300 2 8 3 1 0 0 0 0 0 0 NA 0 3 66 18 16 0 0 0 0 0 0 0 0 0 0 0 287 287 Upper and Lower 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5C200102005 Madera Cnty #19-Parkwood WWTF, Georgia Avenue and Watt Street , Madera, CA 93637 WWTP same agency N N N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11315 5F 616 16-MAR-26 Municipal(Public) 868 4 11 3 2 0 0 0 0 0 0 0 0 3 66 18 16 0 0 0 0 0 0 0 0 0 0 0 287 287 Upper and Lower 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5C200102005 Madera Cnty #19-Parkwood WWTF, Georgia Avenue and Watt Street , Madera, CA 93637 WWTP same agency N N N/A 0 0 0 N N Debris-wipes/Non-disposables N/A Pump Station - Mechanical N/A N/A N/A 2023 5SSO11311 5F 616 04-MAR-24 Municipal(Public) 5768 2 8 3 1 0 0 0 0 0 0 NA 0 1 10 90 0 0 0 0 6130 0 0 0 0 0 0 0 34 34 Upper and Lower 0 5362 0 0 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 7 3 0 5C200102006 Madera Cnty #22A-Oakhurst WWTF, 48382 Black Oak River Road, Oakhurst, CA 93644 WWTP same agency N 0 0 0 0 0 0 0 0 1 3 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11311 5F 616 16-MAR-26 Municipal(Public) 5768 4 11 3 2 0 0 0 0 0 0 N/A 2 7 65 23 12 0 0 0 0 50 50 0 0 0 0 34 34 Upper and Lower 0 10 15 75 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 .5 5 1 5C200102006 Madera Cnty #22A-Oakhurst WWTF, 48382 Black Oak River Road, Oakhurst, CA 93644 WWTP same agency N 1 1 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11317 5F 616 04-MAR-24 Municipal(Public) 462 2 8 3 1 0 0 0 0 0 0 NA 0 1 30 70 0 0 0 0 6130 0 0 0 0 0 0 0 140 140 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 0 5C200102003 Madera Cnty #27-Goldside Estates WWTF, 46036 Beechwood Drive, Oakhurst, CA 93644 WWTP same agency N 0 0 0 0 0 0 0 0 NA 0 0 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11317 5F 616 16-MAR-26 Municipal(Public) 462 4 11 3 2 0 0 0 0 0 0 N/A .5 1.6 14 86 0 0 0 0 0 100 0 0 0 0 0 140 140 Upper and Lower 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1.6 1.6 5C200102003 Madera Cnty #27-Goldside Estates WWTF, 46036 Beechwood Drive, Oakhurst, CA 93644 WWTP same agency N N/A 0 0 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11319 5F 616 04-MAR-24 Municipal(Public) 5148 2 8 3 1 0 0 0 0 0 0 NA 1 19 68 27 5 0 0 0 100 10 90 0 0 0 0 100 1560 140 Upper and Lower 0 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 10 8 1 5C200102001 Madera Cnty #2-Bass Lake WWTF, 40601 Road 274 , Bass Lake, CA 93604 WWTP same agency N 0 0 0 0 0 0 0 0 NA 10 10 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2025 5SSO11319 5F 616 16-MAR-26 Municipal(Public) 5148 4 11 3 2 0 0 0 0 0 0 N/A 5 19 60 35 5 0 0 0 100 10 90 0 0 0 0 100 1560 140 Upper and Lower 0 0 0 1 99 0 0 0 0 0 100 0 4 0 0 0 0 0 0 0 4 0 11 0 0 0 0 0 0 0 11 4 10 0 5C200102001 Madera Cnty #2-Bass Lake WWTF, 40601 Road 274 , Bass Lake, CA 93604 WWTP same agency N 10 10 0 N N Debris-wipes/Non-disposables N/A Gravity Mainline N/A N/A N/A 2023 5SSO11312 5F 1208 04-MAR-24 Municipal(Public) 112 2 8 3 1 0 0 0 0 0 0 NA 0 1 10 90 0 0 0 0 6130 0 0 0 0 0 0 0 34 34 Upper and Lower 0 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 5C200103001 Madera Cnty #14-Chukchansi WWTF, Rd 28 1/2 and Western Way , Madera, CA 93638 WWTP same agency N 0 0 0 0 0 0 0 0 NA 0 0 0 N N Debris-wipes/Non-disposables NA Gravity Mainline NA NA NA 2024 5SSO11312 5F 1208 12-JUN-25 Municipal(Public) 105 5 8 3 2 0 0 0 0 0 0 Our staff only holds wastewater treatment plant operator licensing .1 .6 0 100 0 0 0 0 0 100 0 0 0 0 0 0 32 0 Lower only 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .2 0 5C200103001 Madera Cnty #14-Chukchansi WWTF, Rd 28 1/2 and Western Way , Madera, CA 93638 WWTP same agency N N N/A N/A 0 0 0 N N Fats, Oil and Grease (FOG) Pump Station - Mechanical None None 2024 5SSO11267 5F 616 31-DEC-25 Municipal(Public) 1780 1 2 0 1 0 0 0 0 0 1 N/A 0 7 70 10 20 0 0 0 100 0 0 0 0 0 0 0 450 450 Lower only 1.7 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3.5 7 5D540115001 Woodville WWTF, ave 160 , Woodville, CA 93274 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 1 1 0 N Y Collection System Maintenance Failure (specify below) N/A Gravity Mainline N/A None Clean sewer lines semi-annually or 50%. 2024 6SSO11506 6B 616 29-APR-25 Municipal(Public) 5432 1 1 1 1 0 0 0 0 0 0 State wastewater operation certificates held by all staff 2 30 3 56 30 11 0 0 100 0 50 50 0 0 0 100 2849 2849 Lower only 8.1 2 3 0 95 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 0 2 0 0 0 0 0 0 3 1 7.2 3.1 6B361111001 Helendale Silverlakes STP, Wild Road and Helendale Road , Helendale, CA 92342 WWTP same agency N 1 0 0 N Y Other (specify below) No spills occurred in 2024 Pump Station - Power Had failure at Smithson Lift station on electrical bucket #1. Had Big sky Electric come out and service electrical issue NA Contracted with company to perform Annual Preventative maintenance inspection at Smithson 2025 6SSO11506 6B 616 20-MAR-26 Municipal(Public) 5432 1 1 1 1 0 0 0 0 0 0 State Water certificates held by staff, with one OIT 2 30 3 56 30 11 0 0 100 0 50 50 0 0 0 100 2854 2854 Lower only 8.1 2 3 0 95 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 1 0 3 0 0 0 0 0 0 3 1 6.2 3.9 6B361111001 Helendale Silverlakes STP,28685 Helendale Road , Helendale, CA 92342 WWTP same agency N 1 0 0 N Y Other (specify below) No spills occurred in 2025 Other (specify below) N/A N/A Had Evans Hydro install new pump in Smithson lift station. Had Cali Coast Electric clean and maintenance all electrical connections in panel 2023 2SSO11507 2 616 30-MAR-26 Municipal(Public) 5000 3 7 3 3 0 0 0 0 0 0 The Port of SF does not have a wastewater treatment plant and no staff with these certifications. The Port's system is a collection system, only. 7.8 18.3 64 6 10 1 4 15 100 90 3 3 0 0 3 100 0 0 None 0 0 7 13 7 0 0 1 45 26 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 10 1.5 11 2386010001 SF PUC, 750 Phelps Street, San Francisco, CA 94124 WWTP other agency Y N SF PUC 2386010001 No. 30 30 0 Y Y Pump Station Failure - Mechanical N/A Pump Station - Mechanical N/A No. Installation of a new pump. 2024 2SSO11507 2 616 30-MAR-26 Municipal(Public) 5000 3 7 3 3 0 0 0 0 0 0 The Port of SF does not have a wastewater treatment plant and no staff with these certificates. The Port's system is a collection system only. 7.8 18.3 64 6 10 1 4 15 100 90 3 3 0 0 3 100 0 0 None 0 0 7 13 7 0 0 1 45 26 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 10 1.5 11 2386010001 SF PUC, 750 Phelps Street, San Francisco, CA 94124 WWTP other agency Y N SF PUC 2386010001 No. 30 30 0 Y Y Other (specify below) Petroleum sheen from harbor. Other (specify below) N/A No. Petroleum sheen was not recoverable. 2025 2SSO11507 2 616 30-MAR-26 Municipal(Public) 5000 3 7 3 3 0 0 0 0 0 0 The Port of SF does not have a wastewater treatment plant and no staff with these certificates. The Port's system is a collection system only. 7.8 18.3 64 6 10 1 4 15 100 90 3 3 0 0 3 100 0 0 None 0 0 7 13 7 0 0 1 45 26 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 10.7 1.5 11 2386010001 SF PUC, 750 Phelps Street, San Francisco, CA 94124 WWTP other agency N N SF PUC 2386010001 No. 30 30 0 Y Y Other (specify below) Corroded/failed pipe. Other (specify below) Main. No. Installation of new pipe. 2023 2SSO11508 2 616 22-MAR-24 Other 120 1 3 1 1 1 1 0 0 0 1 1 1 100 0 0 0 0 0 100 0 0 0 0 0 0 0 1 1 Upper and Lower 1 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2SS011508 MARCONI WWTP WWTP same agency N 0 0 0 N Y Other (specify below) NO SPILLS Other (specify below) NO FAILURE POINTS NONE NONE 2023 5SSO11292 5F 616 27-MAR-24 Municipal(Public) 130 0 9 1 1 0 0 0 0 0 0 0 0 50 50 0 0 0 0 100 0 0 0 0 0 0 0 54 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5SSO11292 Fresno Co 30-El Porvenir CS, Derreck Nr Clarkson , Three Rocks, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11292 5F 616 09-DEC-25 Municipal(Public) 130 0 4 2 1 0 0 0 0 0 0 0 .7 90 10 0 0 0 0 100 0 0 0 0 0 0 0 54 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.5 0 5D100102001 Fresno Cnty #30-El Porvenir WWTF, Derreck Nr Clarkson , Three Rocks, CA 93608 WWTP same agency N 0 0 0 N N Fats, Oil and Grease (FOG) Other (specify below) None N/A N/A 2025 5SSO11292 5F 616 13-MAR-26 Municipal(Public) 130 0 4 2 1 0 0 0 0 0 0 0 .7 90 10 0 0 0 0 100 0 0 0 0 0 0 0 54 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5D100102001 Fresno Cnty #30-El Porvenir WWTF, Derreck Nr Clarkson , Three Rocks, CA 93608 WWTP same agency N 0 0 0 N N Fats, Oil and Grease (FOG) Other (specify below) None N/A N/A 2023 5SSO11295 5F 616 27-MAR-24 Municipal(Public) 1725 0 9 1 1 0 0 0 0 0 0 3 3 80 0 20 0 0 0 100 50 50 0 0 0 0 100 743 0 Lower only 0 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 5C100106004 Fresno Cnty #31B-Shaver Lake WWTF, 39360 Solitude Lane, Shaver Lake, CA 93664 WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11295 5F 616 03-MAR-25 Municipal(Public) 1725 0 4 2 1 0 0 0 0 0 0 3 3 80 0 20 0 0 0 100 50 50 0 0 0 0 100 743 0 Lower only 0 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 7 13 0 0 0 0 0 0 21 1 2.5 0 5C100106004 Fresno Cnty #31B-Shaver Lake WWTF, 39360 Solitude Lane, Shaver Lake, CA 93664 WWTP same agency N 3 0 2 N N Root Intrusion Pump Station - Controls N/A N/A 2025 5SSO11295 5F 616 16-MAR-26 Municipal(Public) 1725 0 4 2 1 0 0 0 0 0 0 3 3 80 0 20 0 0 0 100 50 50 0 0 0 0 100 743 0 Lower only 0 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 7 13 0 0 0 0 0 0 21 1 5 0 5c100106004 Fresno Cnty #31B-Shaver Lake WWTF, 39360 Solitude Lane, Shaver Lake, CA 93664 WWTP same agency N 3 0 2 N N Root Intrusion Pump Station - Controls N/A Fresno County is beginning the process of updating control systems within lift stations. 2023 5SSO11296 5F 616 26-MAR-24 Municipal(Public) 960 0 9 1 1 0 0 0 0 0 0 3 1 100 0 0 0 0 0 100 8 78 14 0 0 0 100 315 0 Upper and Lower 3 53 47 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11296 Fresno Co 34-Millerton New Town CS, Brighton Crest , Friant, CA WWTP same agency N 10 0 2 N N Root Intrusion Natural Disaster Force Main N/A N/A 2024 5SSO11296 5F 616 17-DEC-25 Municipal(Public) 968 0 4 2 1 0 0 0 0 0 0 0 3 3 100 0 0 0 0 0 100 8 78 14 0 0 0 100 388 101 Upper and Lower 3 53 47 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 5C100106003 Fresno Cnty #34-Millerton New Town WWTF, Brighton Crest , Friant, CA 93626 WWTP same agency N 1 0 0 N N Other (specify below) None Pump Station - Controls N/A N/A 2025 5SSO11296 5F 616 16-MAR-26 Municipal(Public) 968 0 4 2 1 0 0 0 0 0 0 3 3 100 0 0 0 0 0 100 8 78 14 0 0 0 100 388 101 Upper and Lower 3 53 47 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 5C100106003 Fresno Cnty #34-Millerton New Town WWTF, Brighton Crest , Friant, CA 93626 WWTP same agency N 1 0 0 N N Other (specify below) None Pump Station - Controls N/A N/A 2023 6SSO14497 6B 616 21-MAR-24 Municipal(Public) 28973 3 2 1 1 1 2 1 0 0 3 N/A 0 123 5 75 16 4 0 0 100 0 0 0 0 0 0 0 10287 0 None 0 5 10 50 28 7 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 103350 16360 6B150116001 Ridgecrest WTF, Pole Line Rd and Knox Rd , China Lake, CA 93555 WWTP same agency N N/A 0 0 0 Y Y Construction Diversion Failure The only SSO we had this year was caused by a contractor who slightly punctured one of their own sewer bypass lines Manhole The Division replaced and lined a good portion of manholes in need this year along with aging gravity mainlines. The capital improvements will continue. None The City of Ridgecrest has taken on a capital improvement project for the last 2 years and will continue to do so. Our budget this year for Capital improvements to sewer and the design of our new WWTF was $10 million. New WWTF is at 60% design and should be finished with design in the 2024 calendar year. 2024 6SSO14497 6B 616 26-MAR-25 Municipal(Public) 28088 4 3 1 1 0 0 0 0 0 1 N/A 0 123.2 5 75 16 4 0 0 100 0 0 0 0 0 0 0 10315 0 None 0 6 10 50 28 6 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26.9 6.4 6B150116001 Ridgecrest WTF, Pole Line Rd and Knox Rd , China Lake, CA 93555 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) There were no spills from this collection system during the year of 2024. Other (specify below) None None The City of Ridgecrest continued our Capital Improvement project that has been ongoing the last 3 years and in 2024 Phase 2 of our sewer replacement construction project was completed. After the 7.1 Earthquake an assesment of our collection system had been performed and in 2024 the last of the repairs or replacements on any level 4 or 5 deficiency have now been corrected. The City of Ridgecrest is collecting updated CCTV footage of our Collection system to find and correct any existing deficiencies. 2025 6SSO14497 6B 616 11-MAR-26 Municipal(Public) 28138 5 3 1 1 0 0 0 0 0 1 0 123.2 5 75 16 4 0 0 100 0 0 0 0 0 0 0 10346 0 None 0 6 10 50 28 6 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20.8 2.3 6B150116001 Ridgecrest WTF, Pole Line Rd and Knox Rd , China Lake, CA 93555 WWTP same agency N 0 0 0 Y Y Other (specify below) There were no spills from this collection system during the year of 2025 Other (specify below) None None The City of Ridgecrest continued our Capital Improvement project that has been ongoing the last 3 years and in 2024 Phase 2 of our sewer replacement construction project was completed. After the 7.1 Earthquake an assessment of our collection system had been performed and in 2024 the last of the repairs or replacements on any level 4 or 5 deficiency have now been corrected. The City of Ridgecrest is collecting updated CCTV footage of our Collection system to find and correct any existing deficiencies. 2025 5SSO20019 5F 616 03-APR-26 Municipal(Public) 1799 1 1 1 1 1 0 0 0 0 1 n/a 1.5 12 10 55 35 0 0 0 100 0 0 100 0 0 0 0 476 3 Upper and Lower 13.5 0 0 95 5 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1.5 0 N/a Bridges on the River Restaurant, 2125 Garden Highway, Sacramento, CA 95833 WWTP same agency N N n/a 0 N n/a 0 N n/a 0 N n/a 0 N n/a 0 n/a 0 0 0 N Y Other (specify below) n/a Other (specify below) 0 0 2023 5SSO11338 5F 616 22-MAR-24 Municipal(Public) 4060 2 4 1 1 0 0 0 0 0 0 Contract Employee runs WWTP 1 10 30 35 20 15 0 0 100 0 100 0 0 0 0 100 760 760 Upper and Lower 9 10 10 30 40 10 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 4 0 5SSO11338 San Joaquin CS, , San Joaquin, CA 93660 WWTP same agency N n/a 0 0 3 N Y Debris-General n/a Pump Station - Mechanical n/a none ordered new equipment where needed 2024 5SSO11338 5F 616 10-DEC-25 Municipal(Public) 4060 2 4 1 1 0 0 0 0 0 0 none 1 10 30 35 20 15 0 0 100 0 100 0 0 0 0 100 760 760 Upper and Lower 5 10 10 30 40 10 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 3 0 5SSO11338 San Joaquin WWTF, 23599 Manning , San Joaquin, CA 93660 WWTP same agency N N N none none N none none N none none N none none none 0 0 3 N Y Debris-General none Pump Station - Mechanical none none installing monitoring systems at all lift stations 2025 5SSO11338 5F 616 13-MAR-26 Municipal(Public) 4060 2 4 1 1 0 0 0 0 0 0 1 12 30 35 20 15 0 0 100 0 100 0 0 0 0 100 760 760 Upper and Lower 10 10 10 30 40 10 0 0 0 0 100 0 3 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 8 0 5SSO11338 San Joaquin WWTF, 23599 Manning , San Joaquin, CA 93660 WWTP same agency N 0 0 3 N Y Debris-wipes/Non-disposables Pump Station - Power none added backup power/ increased maintenance 2023 5SSO11286 5F 616 22-DEC-25 Municipal(Public) 8900 0 1 1 1 1 0 1 0 0 0 1 14 40 40 20 0 0 0 0 25 75 0 0 0 0 0 1706 0 None 0 0 25 37 38 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 5C240109001 Franklin WWTF, 2126 North Drake Avenue, Merced, CA 95348 WWTP same agency N 2 0 0 Y Debris-General Gravity Mainline Dead end gravity mainline was impacted by rags/debris due to low flow at that site. None Mainlines systemwide have been videoed. All deficiencies have been scheduled for repair/replace in an upcoming upgrade. 2024 5SSO11286 5F 616 27-FEB-26 Municipal(Public) 8900 0 1 1 1 0 1 1 0 0 0 1 14 40 40 20 0 0 0 0 25 75 0 0 0 0 0 1706 0 None 0 0 25 37 38 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 5C240109001 Franklin WWTF, 2126 North Drake Avenue, Merced, CA 95348 WWTP same agency N 2 0 0 N Y Debris-General Gravity Mainline No ongoing spill investigations are occurring at this time. We periodically clean hot spots that are known to back up. 2025 5SSO11286 5F 616 27-FEB-26 Municipal(Public) 8900 0 1 1 1 0 1 1 0 0 0 1 14 40 40 20 0 0 0 100 25 75 0 0 0 0 100 1706 0 None 0 0 25 37 38 0 0 0 0 0 100 0 1 2 0 0 0 0 0 0 3 0 0 1 0 0 0 0 0 0 1 1 1.5 0 5C240109001 Franklin WWTF, 2126 North Drake Avenue, Merced, CA 95348 WWTP same agency N 2 0 0 Y Debris-General Gravity Mainline No ongoing investigations General sewer cleanings of hotspots to ensure free flow 2023 2SSO11509 2 616 30-MAR-24 Municipal(Public) 650 0 3 1 1 2 1 0 0 0 0 The district's supervisory level operator also has a Grade 1 Wastewater Treatment certification; and one of the journey level operators has a OIT- Wastewater Treatment Certification. Another journal level operator is in the process of acquiring his Grade 1 CWEA certification and the two existing operators with Grade 1 CWEA certification are pursuing their Grade 2 certifications. 1 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 163 0 None 0 0 0 0 25 0 0 75 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 2 2 215004001 Bolinas Community WWTP Pond System, 270 Elm Road, Bolinas, CA 94924 WWTP same agency N 0 0 0 Y Y Other (specify below) Force main infrastructure failures: crack in force main (2014); different component failures on force main check valve (2018, 2019, 2021 and 2022); failure of a section of force main clean-out assembly piping (2021). Force Main None. With regard to the crack in the force main, the affected piping was completely replaced in 2014. As for the component failures on the check valve, the affected components were replaced immediately after failure but after continued problems with check valve components, the check valve was completely replaced with a different model in 2022. The failed section of clean-out assembly piping was replaced immediately after failure and the district has scheduled this asset for full replacement. A full inspection of the force main also is planned. 2024 2SSO11509 2 616 18-DEC-25 Municipal(Public) 650 1 1 1 1 0 1 0 0 0 0 The district's supervisory level operator also has a Grade 2 Wastewater Treatment certification; and the 2 journey level operators have OIT- Wastewater Treatment Certification. The two existing operators with OIT are pursuing Grade 1 CWEA certification. 1 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 163 0 None 0 0 0 0 25 0 0 75 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2 215004001 Bolinas Community WWTP Pond System, 101 Mesa Road, Bolinas, CA 94924 WWTP same agency N 0 0 0 Y Y Other (specify below) Force main infrastructure failures: crack in force main (2014); different component failures on force main check valve (2018, 2019, 2021 and 2022); failure of a section of force main clean-out assembly piping (2021). Force Main None. With regard to the crack in the force main, the affected piping was completely replaced in 2014. As for the component failures on the check valve, the affected components were replaced immediately after failure but after continued problems with check valve components, the check valve was completely replaced with a different model in 2022. The failed section of clean-out assembly piping was replaced immediately after failure and the district has scheduled this asset for full replacement. A full inspection of the force main also is planned. 2025 2SSO11509 2 616 23-MAR-26 Municipal(Public) 650 0 2 1 1 0 1 0 0 0 0 In the 2025 year, the District's supervisory level operator (aka Chief Operator) resigned, and a new Chief was hired in July. The previous chief was in the process of obtaining his Grade 2 Treatment certification when he resigned, and the new Chief Operator, obtained his Grade 2 in October 2025. The 2 journey level operators are in process of obtaining their OIT hours for Wastewater Treatment Certification. Once the two existing operators obtain their OITs they will begin pursuing Grade 1 Treatment from WWOCP. 1 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 163 0 None 0 0 0 0 25 0 0 75 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 2 215004001 Bolinas Community WWTP Pond System, 101 Mesa Road, Bolinas, CA 94924 WWTP same agency N 0 0 0 Y Y Other (specify below) Force main infrastructure failures: crack in force main (2014); different component failures on force main check valve (2018, 2019, 2021 and 2022); failure of a section of force main clean-out assembly piping (2021). Force Main None. With regard to the crack in the force main, the affected piping was completely replaced in 2014. As for the component failures on the check valve, the affected components were replaced immediately after failure but after continued problems with check valve components, the check valve was completely replaced with a different model in 2022. The failed section of clean-out assembly piping was replaced immediately after failure and the district has scheduled this asset for full replacement. A full inspection of the force main also is planned in 2026. 2023 9SSO11514 9 616 28-MAR-24 Municipal(Public) 8663 0 23 5 2 5 8 7 3 0 1 0 4 0 87 13 0 0 0 100 0 0 0 0 0 0 100 443 0 None 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 9 000000785 Plano Trabuco Road SSO, 21014 Plano Trabuco Road, Trabuco Canyon, CA 92679 WWTP other agency N 1 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None at this time. Area has been scheduled for high frequency cleaning. 2024 9SSO11514 9 616 31-MAR-25 Municipal(Public) 7337 2 34 7 2 1 8 7 3 0 2 0 4 0 29 71 0 0 0 100 0 0 0 0 0 0 0 443 0 None 3 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 0 9 000000785 Plano Trabuco Road SSO, 21014 Plano Trabuco Road, Trabuco Canyon, CA 92679 WWTP other agency N 1 0 1 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None at this time. Area has been scheduled for high frequency cleaning. 2025 9SSO11514 9 616 31-MAR-26 Municipal(Public) 8663 10 26 7 2 12 6 2 3 0 0 E&I Grade 2 - 4 persons, E&I Grade 3 - 2 persons, E&I Grade 4 - 4 persons Mech Grade 3 - 2 persons, Mech Grade 4 - 1 person 0 .2 26 0 74 0 0 0 100 0 0 0 0 0 0 0 13 0 None .1 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 000000785 Plano Trabuco Road SSO, 21014 Plano Trabuco Road, Trabuco Canyon, CA 92679 WWTP other agency N 0 0 1 Y Y Other (specify below) None to report. Other (specify below) None. None. None to report. 2023 8SSO11513 8 616 28-MAR-24 Municipal(Public) 19588 0 23 5 2 5 8 7 3 0 1 4 66 1 47 41 8 2 0 100 1 0 99 0 0 0 100 2744 0 None 13 0 60 12 27 0 0 0 0 1 100 0 2 0 0 0 0 0 0 0 2 0 2 0 0 0 0 0 0 0 2 3 11 5 8 300110002 OCSD Plant 1, 10844 Ellis Fountain Valley, CA, 92708 WWTP other agency N 17 2 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None. Assigned impacted areas to high maintenance cleaning schedule. 2024 8SSO11513 8 616 31-MAR-25 Municipal(Public) 36382 2 34 7 2 1 8 7 3 0 2 5 64 1 47 42 8 2 0 100 1 0 100 0 0 0 100 2722 0 None 13 5 56 12 27 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 13.5 .5 8 300110002 001, , CA WWTP other agency N 17 2 3 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None. Assigned impacted areas to high maintenance cleaning schedule. 2025 8SSO11513 8 616 31-MAR-26 Municipal(Public) 19588 10 26 7 2 12 6 2 3 0 0 E&I Grade 2 - 4 persons, E&I Grade 3 - 2 persons, E&I Grade 4 - 4 persons Mech Grade 3 - 2 persons, Mech Grade 4 - 1 person 5 65 1 48 41 8 2 0 100 1 0 99 0 0 0 100 2722 0 None 15 6 56 11 27 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 3 8 300110002 OCSD Plant 1 WWTP other agency N 17 2 3 Y Y Other (specify below) None. Other (specify below) None. None. None. 2025 5SSO11223 5F 616 30-MAR-26 Municipal(Public) 53000 2 3 1 1 2 0 0 0 0 0 None 1 113 2 72 8 16 2 0 100 0 0 100 0 0 0 100 0 0 None 0 15 5 20 10 15 10 10 15 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 .5 87 .7 5D150102001 Delano WWTF, 1107 Lytle Road, Delano, CA 93216 WWTP same agency N 0 0 0 Y Y Debris-wipes/Non-disposables Pump Station - Mechanical Out of two pumps at the lift station, one failed and was replaced. None Lift station is inspected daily. 2023 3SSO11512 3 616 28-MAR-24 Municipal(Public) 3900 0 3 4 1 1 0 0 0 2 0 NA 1 15 19 44 34 0 0 0 97 3 0 0 0 0 0 3 6 0 None 0 0 5 39 56 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 4 3 3SSO11512 California Utilities Service CS, PO Box 5100 , Salinas, CA 93915 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 0 0 N Y Other (specify below) NA Other (specify below) NA NA NA 2024 3SSO11512 3 616 30-MAR-26 Municipal(Public) 3900 0 3 4 1 0 0 0 0 2 0 1 15 19 44 34 0 0 0 97 3 0 0 0 0 0 3 6 0 None 0 0 5 39 56 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 4 1 3 271001001 California Utilities Service PO BOX 5100 Salinas CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 0 0 N Y Other (specify below) NA Other (specify below) NA NA NA 2025 3SSO11512 3 616 30-MAR-26 Municipal(Public) 3900 0 3 4 1 0 0 0 0 2 0 NA 1 15 19 44 34 0 0 0 97 3 0 0 0 0 0 3 6 0 None 0 0 5 39 56 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 5 .2 3 271001001 California Utilities Service PO BOX 5100 Salinas CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 3 0 0 N Y Other (specify below) NA Other (specify below) NA NA NA 2023 5SSO20036 5F 616 02-APR-24 Municipal(Public) 275 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540114001 Woodlake WWTF, 811 South Valencia Boulevard, Woodlake, CA 93286 WWTP other agency N 0 0 0 N Y Other (specify below) No major spill reported Other (specify below) No failure Points No ongoing investigation No action taken 2023 5SSO20036 5F 616 26-JAN-24 Municipal(Public) 275 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 unknown City of Woodlake WWTP other agency N 0 0 0 N N Other (specify below) No major spill reported Other (specify below) No failure pointsq No ongoing investigation No action taken 2024 5SSO20036 5F 616 26-MAR-25 Municipal(Public) 275 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant Operators through the SWRCB 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540114001 Woodlake WWTF, 811 South Valencia Boulevard, Woodlake, CA 93286 WWTP other agency N 0 0 0 N Y Other (specify below) No major spill reported Other (specify below) No failure points No ongoing investigation No action taken 2025 5SSO20036 5F 616 12-MAR-26 Municipal(Public) 275 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5d540114001 Woodlake WWTF, 811 South Valencia Boulevard, Woodlake, CA 93286 WWTP other agency N 0 0 0 N Y Other (specify below) no major spills Other (specify below) no failure points no ongoing investigations no action taken 2023 2SSO11511 2 616 29-MAR-24 Municipal(Public) 10 0 3 1 0 0 0 0 0 0 0 CA SWRCB Wastewater Treatment Plant certified operators 0 5 5 0 0 0 0 0 5 0 0 0 0 0 0 0 16 16 Upper and Lower 1 0 0 5 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2SSO11511 Samuel P. Taylor State park CS, Sir Francis Drake Boulevard, Lagunitas, CA WWTP same agency N 0 1 0 N Y Other (specify below) n/a Other (specify below) n/a 0 0 2024 2SSO11511 2 616 29-MAR-26 Municipal(Public) 10 1 1 1 0 0 0 0 0 0 0 CA SWRCB Wastewater Treatment Plant certified operators .1 5 100 0 0 0 0 0 0 100 0 0 0 0 0 0 16 16 Upper and Lower 1 0 0 5 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 2SSO11511 Samuel P. Taylor State park CS, Sir Francis Drake Boulevard, Lagunitas, CA SSS same agency N 1 1 0 N Y Pump Station Failure - Power Pump Station - Power NO NONE 2025 2SSO11511 2 616 29-MAR-26 Municipal(Public) 30 1 1 0 0 0 0 0 0 0 0 CA SWRCB Wastewater Treatment Plant certified operators .1 5 100 0 0 0 0 0 0 100 0 0 0 0 0 0 16 16 Upper and Lower 1 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2SSO11511 Samuel P. Taylor State park CS, Sir Francis Drake Boulevard, Lagunitas, CA WWTP same agency N 0 1 0 N Y Pump Station Failure - Power Pump Station - Power no no 2023 7SSO11515 7 616 02-APR-24 Municipal(Public) 1655 0 1 2 0 0 0 0 0 0 0 0 6 18 55 27 0 0 0 100 0 0 0 0 0 0 0 450 1 None 0 0 7 20 73 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 7SSO11515 13-10013 CS, 1898 W. Main , Seeley, CA 92273 WWTP same agency N 0 0 0 N Y Root Intrusion Root intrusion selected however SSOs are not a problem. Upper Lateral Calls that have come in have been from residents with tree root intrusion into their laterals. None Root intrusion selected because there are two sections of mainline with root intrusion as observed via camera inspection. These two areas receive special quarterly attention with root cutting jetter nozzles to prevent mainline obstruction. 2025 7SSO11515 7 616 12-MAY-26 Municipal(Public) 1729 2 2 2 0 0 0 0 0 0 0 N/A 0 6 18 55 27 0 0 0 100 0 0 0 0 0 0 0 450 1 None 0 0 7 20 73 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 7SSO11515 13-10013 CS, 1898 W. Main , Seeley, CA 92273 WWTP same agency N 0 0 0 N Y Other (specify below) No spills. Upper Lateral Most the time is at the customer and so far, we haven't had any spills. N/A Look for any manholes in bad shape or started having signs of sewer backing up. 2023 6SSO11517 6A 616 03-APR-24 Municipal(Public) 0 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 1 1 92 8 0 0 0 0 100 100 0 0 0 0 0 100 5 5 Upper and Lower 1 0 28 72 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP same agency N N/A 0 0 0 Y Other (specify below) N/A. No SSOs in 2023. Other (specify below) N/A. No SSOs in 2023. N/A. No SSOs in 2023. N/A. No SSOs in 2023. 2024 6SSO11517 6A 616 26-DEC-25 Municipal(Public) 0 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 5 5 Upper and Lower 1 0 28 72 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N N/A 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2024. Other (specify below) N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. 2025 6SSO11517 6A 616 26-MAR-26 Landfill 0 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 1 1 95 5 0 0 0 0 100 100 0 0 0 0 0 100 5 5 Upper and Lower 1 0 28 72 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 6A2900110 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2025. Other (specify below) N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. 2023 8SSO11518 8 616 28-MAR-24 Municipal(Public) 14309 0 23 5 2 5 8 7 3 0 1 5 62 4 85 11 0 0 0 100 35 0 65 0 0 0 100 597 0 None 4 0 39 61 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3 28 4 8 300110002 OCSD Plant 2, 22212 Brookhurst Huntington Beach, CA, 92646-8406 WWTP other agency N 55 2 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None. Installed locking maintenance hole access points and added impacted area to high maintenance. 2024 8SSO11518 8 616 31-MAR-25 Municipal(Public) 12829 2 34 7 2 1 8 7 3 0 2 5 62 4 85 11 0 0 0 100 35 0 65 0 0 0 100 597 0 None 4 0 39 61 1 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3 9 5.5 8 300110002 001, , CA WWTP other agency N 55 2 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None. Installed locking maintenance hole access points and added impacted area to high maintenance. 2025 8SSO11518 8 616 31-MAR-26 Municipal(Public) 14309 10 26 7 2 12 6 2 3 0 0 E&I Grade 2 - 4 persons, E&I Grade 3 - 2 persons, E&I Grade 4 - 4 persons Mech Grade 3 - 2 persons, Mech Grade 4 - 1 person 5 62 4 85 11 0 0 0 100 35 0 65 0 0 0 100 597 0 None 4 0 39 61 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 2 8 300110002 OCSD Plant 2 WWTP other agency N 55 2 0 Y Y Other (specify below) None. Other (specify below) None. None. None. 2023 5SSO11601 5F 616 29-MAR-24 Municipal(Public) 4400 3 1 1 1 0 0 0 0 0 1 0 52 20 80 0 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 10 60 30 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 18 5 5sso10717 30th & Spruce st, 2600 30th , Bakersfield, CA 93301 WWTP same agency 5sso10750 North of River Sanitary District #1 CS, 204 Universe Avenue, Bakersfield, CA 93308 WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline NA NA 2024 5SSO11601 5F 616 04-FEB-26 Municipal(Public) 4400 3 2 1 1 2 0 0 0 0 2 0 52 20 80 0 0 0 0 100 0 0 0 0 0 0 0 1100 0 None 0 10 60 30 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 2.4 1 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency 5C15NC00146 NORSD Biosolids Land Application Area, 28970 7th Standard Road, Shafter, CA 93263 WWTP other agency N 0 0 0 Y Y Debris-General Gravity Mainline NA NA NA 2025 5SSO11601 5F 616 17-FEB-26 Municipal(Public) 4400 0 4 1 1 1 0 0 0 0 3 .5 52 20 80 0 0 0 0 100 100 0 0 0 0 0 100 1100 0 None 0 10 60 30 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 3 1 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency Y N na na 0 0 0 Y Y Pump Station Failure - Mechanical NA Pump Station - Mechanical NA NA new Pumps have been ordered to help with excessive wipes in system. 2023 5SSO11602 5F 616 29-MAR-24 Municipal(Public) 1100 3 1 1 1 0 0 0 0 0 1 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 268 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5sso10717 30th & Spruce st, 2600 30th , Bakersfield, CA 93301 WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline NA NA 2024 5SSO11602 5F 616 18-FEB-26 Municipal(Public) 1100 0 4 1 1 1 0 0 0 0 3 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 268 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency Y Y bakersfield city wwtp3 sewer 5sso10717 0 0 0 Y Y Debris-General Gravity Mainline NA NA 2025 5SSO11602 5F 616 18-FEB-26 Municipal(Public) 1100 0 4 0 0 1 0 0 0 0 3 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 268 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 .5 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency Y Y bakersfield city wwtp3 sewer 5sso10717 0 0 0 Y Y Debris-General Gravity Mainline NA NA 2023 1SSO11603 1 616 01-APR-26 Municipal(Public) 1000 2 2 2 2 1 0 0 0 0 1 none 0 10 0 100 0 0 0 0 90 0 10 0 0 0 0 10 0 0 None 0 0 100 100 0 0 0 0 0 0 100 3 3 3 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 3 0 4 2.4 isso11603 tulelake WWTP same agency WWTP same agency WWTP same agency WWTP same agency N 0 0 0 N Y Other (specify below) none Manhole none none none 2024 1SSO11603 1 616 01-APR-26 Municipal(Public) 1000 2 2 2 2 1 0 0 0 0 0 none 0 10 0 90 0 0 0 0 90 0 10 0 0 0 0 10 0 0 None 0 10 100 100 0 0 0 0 0 0 100 3 3 3 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 3 1 2.8 3.8 isso11603 WWTP same agency WWTP same agency WWTP same agency WWTP same agency N N N tulelake isso11603 N tulelake isso11603 N tulelake isso11603 N tulelake isso11603 none 0 0 0 N Y Other (specify below) none Manhole none none none 2025 1SSO11603 1 616 01-APR-26 Municipal(Public) 1000 2 2 2 2 1 0 0 0 0 1 none 0 10 0 90 0 0 0 0 90 0 10 0 0 0 0 10 0 0 None 0 0 100 100 0 0 0 0 0 0 100 3 3 3 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 3 0 4 3.4 isso11603 tulelake WWTP same agency N N none 0 0 0 N Y Other (specify below) none Manhole none none none 2023 5SSO11604 5S 616 07-FEB-25 Airport 1000 0 0 2 1 0 0 0 0 0 0 Maintenance contracted 0 1.9 15 75 10 0 0 0 100 0 0 0 0 0 0 0 28 28 Upper and Lower .4 0 1 0 50 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 0 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral Increased PM jetting of tenant restaurant kitchen drains before they reach lateral. Gravity Mainline NA NA Programed preventative maintenance/jetting/inspection. 2024 5SSO11604 5S 616 05-JAN-26 Airport 1000 0 0 2 1 0 0 0 0 0 0 Contracted maintenance 0 1.9 15 75 10 0 0 0 100 0 0 0 0 0 0 0 28 28 Upper and Lower .4 0 1 0 50 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 .1 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral NA Gravity Mainline NA NA Programed preventative maintenance/jetting/inspection. 2025 5SSO11604 5S 616 05-JAN-26 Airport 1000 0 0 2 1 0 0 0 0 0 0 Contracted maintenance. 0 0 15 75 10 0 0 0 100 0 0 0 0 0 0 0 28 28 Upper and Lower .4 0 1 0 50 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .1 .1 NA Sacramento Area Sewer District 8521 Laguna Station Rd, Elk Grove, CA 95758 WWTP other agency N NA 0 0 0 N Y Debris from Lateral NA Gravity Mainline NA NA Programed preventative maintenance/jetting/inspection. 2023 5SSO11603 5F 616 29-MAR-24 Municipal(Public) 575 3 1 1 1 0 0 0 0 0 1 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 145 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5sso10717 30th & Spruce st, 2600 30th , Bakersfield, CA 93301 WWTP same agency N 0 0 0 N Y Debris-General Gravity Mainline NA NA 2024 5SSO11603 5F 616 19-FEB-26 Municipal(Public) 575 3 2 1 1 2 0 0 0 0 2 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 145 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency Y Y bakersfield city wwtp3 sewer 5sso10717 0 0 0 Y Y Debris-General Gravity Mainline NA NA 2025 5SSO11603 5F 616 19-FEB-26 Municipal(Public) 575 0 4 1 1 1 0 0 0 0 3 0 2 20 80 0 0 0 0 100 0 0 0 0 0 0 0 145 0 None 0 0 10 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 .5 5D150100002 Bakersfield WWTP #3, 6901 McCutchen Road, Bakersfield, CA 93313 WWTP other agency N Y bakersfield city wwtp3 sewer 5sso10717 0 0 0 Y Y Debris-General Gravity Mainline NA NA 2023 5SSO11297 5F 616 26-MAR-24 Municipal(Public) 1625 0 9 1 1 0 0 0 0 0 0 3 6 80 0 20 0 0 0 100 50 50 0 0 0 0 100 658 0 Lower only 9 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 5SSO11297 Fresno Co 41-Shaver Lake CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11297 5F 616 22-DEC-25 Municipal(Public) 1625 0 4 2 1 0 0 0 0 0 0 3 8 80 0 20 0 0 0 100 50 50 0 0 0 0 100 658 0 Lower only 9 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 8 2 1.5 0 5C100106002 Fresno Cnty #41-Shaver Lake WWTF, Solitude , Shaver Lake, CA 93664 WWTP same agency N 4 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2025 5SSO11297 5F 616 16-MAR-26 Municipal(Public) 1625 0 4 2 1 0 0 0 0 0 0 3 8 80 0 20 0 0 0 100 50 50 0 0 0 0 100 658 0 Lower only 9 50 25 25 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 8 2 4.5 0 5c100106002 Fresno Cnty #41-Shaver Lake WWTF, Solitude , Shaver Lake, CA 93664 WWTP same agency N 4 0 0 N N Root Intrusion Pump Station - Controls N/A Fresno County is beginning the process of updating control systems within lift stations. 2023 5SSO11288 5F 616 27-MAR-24 Municipal(Public) 158 0 9 1 1 0 0 0 0 0 0 0 3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 60 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 5SSO11288 Fresno Co 38-Sky Harbour CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11288 5F 616 10-DEC-25 Municipal(Public) 158 0 4 2 1 0 0 0 0 0 0 NA .1 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 .2 0 5C100106001 Fresno Cnty #38-Sky Harbour WWTF, Sky Harbor , Friant, CA 93626 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2025 5SSO11288 5F 616 16-MAR-26 Municipal(Public) 158 0 4 2 1 0 0 0 0 0 0 N/A .1 3 100 0 0 0 0 0 100 100 0 0 0 0 0 100 60 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 .2 0 5c100106001 Fresno Cnty #38-Sky Harbour WWTF, Sky Harbor , Friant, CA 93626 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2023 5SSO11291 5F 616 26-MAR-24 Municipal(Public) 245 0 9 1 1 0 0 0 0 0 0 0 1 50 50 0 0 0 0 100 0 0 0 0 0 0 0 99 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5SSO11291 Fresno Co 44A-Millerton Lake MHV CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Natural Disaster Force Main N/A N/A 2024 5SSO11291 5F 616 09-DEC-25 Municipal(Public) 245 0 4 2 1 0 0 0 0 0 0 0 1 50 50 0 0 0 0 100 0 0 0 0 0 0 0 99 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5C101017001 Fresno Cnty #44A-Millerton Lake MHV WWTF, Southwest corner of Parker St and Countryside Ln , Friant, CA 93626 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2025 5SSO11291 5F 616 16-MAR-26 Municipal(Public) 245 0 4 2 1 0 0 0 0 0 0 0 1 50 50 0 0 0 0 100 0 0 0 0 0 0 0 99 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5c101017001 Fresno Cnty #44A-Millerton Lake MHV WWTF, Southwest corner of Parker St and Countryside Ln , Friant, CA 93626 WWTP same agency N 0 0 0 N N Other (specify below) None Other (specify below) WWTP Influent Pumps N/A N/A 2023 5SSO11289 5F 616 26-MAR-24 Municipal(Public) 1775 0 9 1 1 0 0 0 0 0 0 0 5 30 60 10 0 0 0 100 0 0 0 0 0 0 0 750 0 Lower only 5 60 40 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 1 0 5SSO11289 Fresno Co 47-Quail Lake CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11289 5F 616 09-DEC-25 Municipal(Public) 1778 0 4 2 1 0 0 0 0 0 0 0 5 30 60 10 0 0 0 100 0 0 0 0 0 0 0 750 0 Lower only 5 60 40 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 0 5D101122001 Fresno Cnty #47-Quail Lake WWTF, 4121 Quail Lake Drive, Clovis, CA 93611 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2025 5SSO11289 5F 616 16-MAR-26 Municipal(Public) 1778 0 4 2 1 0 0 0 0 0 0 0 5 30 60 10 0 0 0 100 0 0 0 0 0 0 0 750 0 Lower only 5 60 40 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 0 5d101122001 Fresno Cnty #47-Quail Lake WWTF, 4121 Quail Lake Drive, Clovis, CA 93611 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2023 5SSO11293 5F 616 27-MAR-24 Municipal(Public) 180 0 9 1 1 0 0 0 0 0 0 1 1 0 100 0 0 0 0 100 0 0 0 0 0 0 0 73 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11293 Fresno Co 32-Cantua Creek CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11293 5F 616 15-DEC-25 Municipal(Public) 180 0 4 2 1 0 0 0 0 0 0 1.1 .7 0 100 0 0 0 0 100 0 0 0 0 0 0 0 73 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5D100102002 Fresno Cnty #32-Cantua Creek WWTF, San Mateo & Elk Horn , Cantua Creek, CA 93608 WWTP same agency N 0 0 0 N N Other (specify below) None Pump Station - Controls N/A N/A 2025 5SSO11293 5F 616 16-MAR-26 Municipal(Public) 180 0 4 2 1 0 0 0 0 0 0 1.1 .7 0 100 0 0 0 0 100 0 0 0 0 0 0 0 73 0 Lower only 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5d100102002 Fresno Cnty #32-Cantua Creek WWTF, San Mateo & Elk Horn , Cantua Creek, CA 93608 WWTP same agency N 0 0 0 N N Other (specify below) None Pump Station - Controls N/A N/A 2023 5SSO11290 5F 616 27-MAR-24 Municipal(Public) 173 0 9 1 1 0 0 0 0 0 0 1 2 100 0 0 0 0 0 100 0 0 0 0 0 0 0 69 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5SSO11290 Fresno Co 40-Shaver Springs CS, , Fresno, CA WWTP same agency N 10 0 2 N N Root Intrusion Force Main N/A N/A 2024 5SSO11290 5F 616 09-DEC-25 Municipal(Public) 173 0 4 2 1 0 0 0 0 0 0 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 69 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 1 0 5D101026001 Fresno Cnty #40-Shaver Springs WWTF, Tollhouse , Auberry, CA 93602-9787 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2025 5SSO11290 5F 616 16-MAR-26 Municipal(Public) 173 0 4 2 1 0 0 0 0 0 0 1 2 100 0 0 0 0 0 100 100 0 0 0 0 0 100 69 0 Lower only 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 2.7 0 5d101026001 Fresno Cnty #40-Shaver Springs WWTF, Tollhouse , Auberry, CA 93602-9787 WWTP same agency N 0 0 0 N N Root Intrusion Pump Station - Controls N/A N/A 2023 5SSO20037 5F 616 02-APR-24 Municipal(Public) 329 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 2 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 65 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2023 5SSO20037 5F 616 26-JAN-24 Municipal(Public) 329 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 2 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 65 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 unknown City of Lindsay WWTP WWTP other agency N 0 0 0 N N Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2024 5SSO20037 5F 616 25-MAR-25 Municipal(Public) 329 4 3 2 2 2 2 2 1 1 0 Certified wastewater treatment operators through the SWRCB 2 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 65 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2025 5SSO20037 5F 616 12-MAR-26 Municipal(Public) 329 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operations through the Senate Water Resources Control Board 2 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 65 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spill Other (specify below) No failure points no ongoing spill investigations No actions taken 2023 2SSO11605 2 1208 21-MAR-24 Other 1809 0 1 4 1 0 0 0 0 0 0 N/A 1 4 80 20 0 0 0 0 100 100 0 0 0 0 0 100 0 35 Upper and Lower 1 81 15 4 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 4 0 2 019025001 City of Livermore Water Reclamation Plant. 101 W Jack London Blvd, Livermore, CA 94551 WWTP same agency N N N/A N/A N/A 1 0 0 Y Y Other (specify below) No spills in 2023 Other (specify below) No spills in 2023 None N/A 2024 2SSO11605 2 1208 02-APR-25 Other 1836 0 4 4 1 0 0 0 0 0 0 CA-NV AWWA Certified BFPA Testers Cross Connection Control Specialist 1 4 80 20 0 0 0 0 100 100 0 0 0 0 0 100 0 35 Upper and Lower 1 81 15 4 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 4 4 2 019025001 City of Livermore Water Reclamation Plant. 101 W Jack London Blvd, Livermore CA 94551 WWTP same agency N N N/A N/A N/A 1 0 0 Y Y Other (specify below) After post maintenance, spill originated from a sewer cleanout manhole and overflowed into parking lot. Spill lot area. Non-continuous flow but single spill. Cap/lid failed to seal correctly and was replaced to correct issue. Other (specify below) sewer clean out access as described in #15a. None As described in #15a, cap from spill incident was replaced. no further incidents occurred. 2023 2SSO11680 2 616 28-JAN-26 Municipal(Public) 187 0 0 0 0 0 0 0 0 0 0 TVCSD has no wastewater employees. TVCSD contracts out system operator services to outside System Operator contractor Natural System Utilities (NSU). .1 2.2 21 74 0 0 0 0 95 5 0 0 0 0 0 5 102 102 None 0 1 2 2 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 .2 2.2 2SSO11680 10 Irvin Road, Tomales, CA WWTP same agency N N None None N None None N None None N None None N None None None 1 0 0 N Y Other (specify below) No system major or minor spills. Other (specify below) No system infrastructure failures. None Planning for SCADA system upgrades. 2024 2SSO11680 2 616 28-JAN-26 Municipal(Public) 187 0 0 0 0 0 0 0 0 0 0 TVCSD outsources its system operator services to System Operator contractor Natural Systems Utilities (NSU). Manuel Soto Certified Chief Plant Operator II 35786 .1 2.2 21 74 0 0 0 0 95 5 0 0 0 0 0 5 102 0 None 0 1 2 2 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2SSO11680 10 Irvin Road, Tomales, CA WWTP same agency N N None None N None None N None None N None None N None None None 1 0 0 N Y Other (specify below) No mayor or minor spills. Other (specify below) No system infrastructure failures. None Began installing new SCADA system along with various monitoring equipment updates. 2025 2SSO11680 2 616 28-JAN-26 Municipal(Public) 187 0 0 0 0 0 0 0 0 0 0 TVCSD outsources its system operator services to System Operator contractor Natural System Utilities (NSU) Manuel Soto Certified Chief Plant Operator II 35786 .1 2.2 21 74 0 0 0 0 95 5 0 0 0 0 0 5 102 0 None 0 1 2 2 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 2.3 2SSO11680 10 Irvin Road, Tomales, CA WWTP same agency N N None None N None None N None None N None None N None None No 1 0 0 N Y Other (specify below) No major or minor spills Other (specify below) No system infrastructure failures None Completed installation of new SCADA system and upgrading monitoring equipment. 2023 1SSO11555 1 616 01-DEC-25 Municipal(Public) 93 0 1 0 1 0 0 0 0 0 4 N/A 0 10 100 0 0 0 0 0 100 0 0 0 0 0 0 0 60 0 None 0 0 5 0 0 95 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 2 0 1B83118OMEN 002, , CA WWTP same agency N 1 0 0 Damage by Others Not Related to Collection System Construction/Maintenance N/A Gravity Mainline N/A N/A Replaced 200 feet of mainline and applying for SWRCB Grants. 2024 1SSO11555 1 616 01-DEC-25 Municipal(Public) 93 0 1 0 1 0 0 0 0 0 2 N/A 0 10 100 0 0 0 0 0 100 0 0 0 0 0 0 0 60 0 None 0 0 0 10 0 90 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 1B83118OMEN 002, , CA WWTP same agency N N/A 0 0 0 N Y Root Intrusion N/A Gravity Mainline N/A N/A Replaced 200 feet of sewer mainline and applying for SWRCB Grants to replace the collection system. 2023 5SSO20039 5F 616 02-APR-24 Municipal(Public) 96 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 27 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2023 5SSO20039 5F 616 26-JAN-24 Municipal(Public) 96 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 27 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 unknown City of Lindsay WWTP WWTP other agency N 0 0 0 N N Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2024 5SSO20039 5F 616 25-MAR-25 Municipal(Public) 96 4 3 2 2 2 2 2 1 1 0 Certified wastewater treatment operators through the SWRCB 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 27 0 None 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N 0 0 0 Y N Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation No action taken 2025 5SSO20039 5F 616 12-MAR-26 Municipal(Public) 96 4 3 2 2 2 2 2 1 1 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 27 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540105001 Lindsay WWTF, 23611 Road 196 , Lindsay, CA 93247 WWTP other agency N NA 0 0 0 Y Y Other (specify below) No major spills reported Other (specify below) No failure points No ongoing investigation no action taken 2023 8SSO11606 8 616 02-APR-24 Airport 650 0 7 1 0 5 1 1 0 0 1 None 0 4 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 55 Upper and Lower 0 0 1 40 10 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 8SSO11606 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from lateral, wipes/non-disposables, fats, oil and grease, roots Other (specify below) Manholes, laterals None None 2024 8SSO11606 8 616 04-DEC-25 Airport 650 7 7 1 0 5 2 1 0 0 0 None 0 4 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 55 Upper and Lower 0 0 1 40 10 49 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 8 362918001 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP other agency N None 0 0 0 N Y Other (specify below) Debris from lateral, wipes/non-disposables, fats, oil and grease Other (specify below) Manholes, laterals None Regular cleaning and CCTV 2023 3SSO20024 3 616 28-MAR-24 Park (Day Use) 400 1 2 1 1 0 0 0 0 0 0 0 5 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 Upper and Lower 1 0 80 20 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 0 0 3SSO10322 San Simeon CS, 111 Pico Avenue, San Simeon, CA 93452 WWTP same agency 3 40011000 310.13 San Simeon HSA, , CA WWTP same agency Y N Hearst Corporation N/A 1 2 0 Y Y Other (specify below) There has not been any spills but possible causes could be from: root intrusion, pump station failure, and vandalism Other (specify below) Air relief valves, force mains, gravity mains, pump station failures. N/A N/A 2023 3SSO20024 3 616 15-SEP-23 400 1 2 1 1 0 0 0 0 0 0 0 5 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 1 0 80 20 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 0 0 3SSO10322 San Simeon Community Services District 3 40011000 San Simeon Community Services District Y N Hearst Corporation N/A N N N N 1 2 0 N Y There has not been any spills but possible causes could be from: root intrusion, pump station failure, and vandalism Air relief valves, force mains, gravity mains, pump station failure. NA NA 2024 3SSO20024 3 616 05-NOV-25 Park (Day Use) 400 1 2 1 1 0 0 0 0 0 0 0 5 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 1 1 Upper and Lower 1 10 70 20 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 1 1 3 400110001 310.13 San Simeon HSA, , CA WWTP other agency Y N Hearst Corporation N/A N/A 1 2 0 Y Y Other (specify below) There has not been any spills but possible causes could be from root intrusion, pump station failure, and vandalism Other (specify below) Air relief valves, force mains, gravity mains, pump station failures. N/A N/A 2023 3SSO11522 3 616 25-MAR-24 Municipal(Public) 165542 2 9 2 1 0 1 0 0 0 5 NA 5 7 0 0 30 42 28 0 100 0 0 100 0 0 0 100 24 0 None 1 0 0 11 20 69 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 0 1 3 270111003 Salinas Industrial Wastewater Treatment Facility WWTP same agency N NA 0 0 0 Operator Error (specify below) Monterey One Water SCADA System Error, Diversion Gate 2 did not open to allow scheduled diversion to City of Salinas Industrial Waste Treatment Facility. At time of error flow was being diverted to Monterey One Water Salinas Pump Station. Both gates were closed due to error. This caused system to backup and discharge from manhole. Pump Station - Controls NA NA Monterey One Water will add additional programing in SCADA to help prevent future occurrences. An Interlock feature will be programmed that will not allow both gates to be closed at the same time and alarm the control room operator if the command to close both gates are given. Change programming to reflect true gate position rather then target position. Monterey One Water will be exploring a time out feature that would send and alarm if a gate takes too long to open/close or fails to reach target position. The City of Salinas is looking at possible installation of smartcover on collection system which will alert us to abnormal rise in manhole water levels. 2024 3SSO11522 3 616 05-MAR-25 Municipal(Public) 159506 2 14 2 1 0 2 0 0 0 5 N/A .4 7.2 0 0 30 42 28 0 100 0 0 100 0 0 0 100 24 0 None 0 0 0 11 20 69 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 1 .5 3 270111003 Salinas Industrial Wastewater Treatment Facility WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills from system for 2024 Other (specify below) No system failures for 2024 N/A None 2025 3SSO11522 3 616 16-MAR-26 Municipal(Public) 161039 2 13 2 1 0 2 0 0 0 4 N/A .4 7.2 0 0 30 42 28 0 100 0 0 100 0 0 0 100 24 0 None 0 0 0 11 20 69 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 .5 0 3 270111003 Salinas Industrial Wastewater Treatment Facility WWTP same agency N N/A 0 0 0 Y Y Other (specify below) No spills from system for 2025 Other (specify below) No System Failures 2025 N/A None 2023 2SSO10665 2 616 02-APR-24 Municipal(Public) 13486 0 0 0 1 0 0 0 0 0 0 Our Sewer System is operated and maintained by the North San Mateo County Sanitation District (2SS)10161). 1 19 54 41 5 0 0 0 100 10 0 90 0 0 0 100 4000 1 Upper and Lower 1 0 10 30 60 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 1 18 0 2SSO10161 North San Mateo County CS, 333 90th Street, Daly City, CA 94015 WWTP other agency Y N SF Jail No 3 S255281 N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None at this time. Emphasis on CIP progress moving forward in partnership with District Engineering Consultant. 2024 2SSO10665 2 616 01-APR-25 Municipal(Public) 13486 0 0 0 1 0 0 0 0 0 0 Our Sewer System is operated and maintained by the North San Mateo County Sanitation District (2SS10161), a subsidiary of the City of Daly City. 1 19 54 41 5 0 0 0 100 10 0 90 0 0 0 100 4000 1 Upper and Lower 1 0 10 30 60 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 1 4.7 0 2SSO10161 North San Mateo County CS, 333 90th Street, Daly City, CA 94015 WWTP other agency Y N SF Jail No 3 S255281 N/A 0 0 0 Y Y Other (specify below) Fats, Oils, and Grease (FOG) and Pump Station Failure - Power Gravity Mainline None at this time. Emphasis on CIP progress moving forward in partnership with District Engineering Consultant and the NSMCSD. 2025 2SSO10665 2 616 30-MAR-26 Municipal(Public) 13486 0 0 0 1 0 0 0 0 0 0 Our Sewer System is operated and maintained by the North San Mateo County Sanitation District (2SS10161), a subsidiary of the City of Daly City. 1 19 54 41 5 0 0 0 100 10 0 90 0 0 0 100 4000 1 Upper and Lower 1 0 10 30 60 0 0 0 0 0 100 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 1 12.6 0 2SSO10161 North San Mateo County CS, 333 90th Street, Daly City, CA 94015 WWTP other agency Y N SF Jail No 3 S255281 N/A 0 0 0 Y Y Fats, Oil and Grease (FOG) Gravity Mainline None at this time Emphasis on CIP progres moving forward in partnership with District Engineering Consultant and the NSMCSD 2023 6SSO11523 6B 616 27-MAR-24 Municipal(Public) 278288 1 1 1 1 0 0 0 0 0 0 one employe was a water treatment certificate ( T2) 3 5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 2 2 6b360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 SSS same agency N 0 0 0 N Y Other (specify below) no data available, no major spills in the last 3 years i have being here. Pump Station - Controls none faulty units replaced. 2024 6SSO11523 6B 616 16-MAR-26 Municipal(Public) 2580288 1 1 1 1 0 0 0 0 0 0 One employee holds a T2 license 3 5 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 1 2 6b360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 SSS same agency N 0 0 0 N Y Other (specify below) no major spills Pump Station - Controls none damaged components replaced 2025 6SSO11523 6B 616 16-MAR-26 Municipal(Public) 1427254 1 1 1 1 0 0 0 0 0 0 3 5 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 None 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 6b360106001 Crestline SD Three WTF's, 24516 Lake Drive, Crestline, CA 92325 SSS same agency N 0 0 0 N Y Other (specify below) No Major Spill Pump Station - Mechanical none New pump installed 2023 8SSO11525 8 616 20-NOV-25 Park (w/Campground) 500000 10 3 2 1 0 0 0 0 0 0 NA 2 6 45 55 0 0 0 0 100 0 20 80 0 0 0 100 282 282 Lower only 2 0 10 60 30 0 0 0 0 0 100 0 0 0 4 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 1 330110005 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley, CA 92551 WWTP other agency N NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Lower Lateral NA NA working with EMWD to upgrade lift stations 2024 8SSO11525 8 616 21-NOV-25 Park (w/Campground) 500000 5 3 2 1 0 0 0 0 0 0 2 6 45 55 0 0 0 0 100 0 20 80 0 0 0 100 282 282 Lower only 2 0 10 60 30 0 0 0 0 0 100 0 0 0 4 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 0 8 330110005 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley, CA 92551 WWTP other agency N 0 0 0 N Y Debris-wipes/Non-disposables NA Lower Lateral NA NA English and Spanish signs in restrooms advising not to flush wipes, making trash receptacles available for wipes. in design phase for main lift station upgrade 2025 8SSO11525 8 616 02-FEB-26 Park (w/Campground) 500000 3 3 1 1 0 0 0 0 0 0 2 6 45 55 0 0 0 0 100 0 20 80 0 0 0 100 282 282 Lower only 2 0 10 60 30 0 0 0 0 0 100 0 0 0 4 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 3 3 330110005 Moreno Valley RWRF, 17140 Kitching Street, Moreno Valley, CA 92551 WWTP other agency N NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Lower Lateral NA NA Working with EMWD to up grade lift stations 2023 2SSO11607 2 616 02-APR-24 Municipal(Public) 190 0 0 0 2 0 0 0 0 0 0 Crockett CSD employs two full-time managers to fill District Engineer and Sanitary Dept Manager roles. Port Costa Sanitary Dept hires LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs. LRP performs CCTV as well. LRP has two employees, one with four years experience, the other with 9 years experience. LRP has been in business for 30 years, the owner has been in the business for 40 years. All LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches experienced, grade level, and or certified staff. 0 1 95 5 0 0 0 0 100 0 0 0 0 0 0 0 86 0 None 0 25 10 10 10 10 10 35 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 23 2sso11607 Port Costa CS end point & WWTP located at End of Canyon Lake Drive, Port Costa, CA 94569, WWTP same agency N 2 0 0 N Y Root Intrusion Roots, offsets holding wipes and debris Gravity Mainline Roots, offsets. *Question 5b... 1.35 miles (7108 LF) *Question 6... 1.6 miles (8486 LF) None Increased maintenance frequency, CCTV, and spot repairs and replacement. *Question 7... This report does not accept decimals. 1,219 Linear feet were CCTV'd in 2023. 2024 2SSO11607 2 616 11-MAR-25 Municipal(Public) 190 0 13 1 2 1 2 0 1 0 4 Crockett CSD employs two full-time managers to fill District Manager and Sanitary Dept Manager roles. Port Costa Sanitary Dept hires LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs. LRP performs CCTV as well. LRP has two employees plus the owner operator, one with 5 years experience, the other with 10 years experience. LRP has been in business for 31 years, the owner has been in the business for 41 years. LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches 6 experienced, grade level, and or certified staff. District is contracted with Natural Systems Utilities (NSU) for treatment plant operations with 4 specifically assigned staff. NSU may also be utilized to assist with collection system issues. 0 1.3 95 5 0 0 0 0 100 0 0 0 0 0 0 0 86 0 None 0 1 10 0 0 0 89 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.3 .5 2 071034001 Port Costa WWTP, Canyon Lake Drive, Port Costa, CA 94569 WWTP same agency N 5 0 0 Y Debris-wipes/Non-disposables Gravity Mainline None Ongoing identification by CCTV. Deficiencies addressed with spot repairs as needed. 2025 2SSO11607 2 616 30-MAR-26 Municipal(Public) 190 0 13 1 2 1 2 0 1 0 4 Crockett CSD employs two full-time managers to fill District General Manager and Sanitary Dept Manager roles. Port Costa Sanitary Dept contracts LR Paulsell Consulting (LRP) to perform regular and emergency maintenance and repairs. LRP performs CCTV as well. LRP has two employees plus the owner operator, one with experience of 6 years, the other with 11 years. LRP has been in business for 32 years, the owner has been in the business for 42 years. LRP employees are PACP certified for pipeline inspection. The District also contracts with West County Wastewater District who dispatches 6 experienced, grade level, and or certified staff. District is contracted with Natural Systems Utilities (NSU) for treatment plant operations with 4 specifically assigned staff. NSU may also be utilized to assist with collection system issues. 0 1.3 84 5 11 0 0 0 100 0 0 0 0 0 0 0 86 0 None 0 1 10 0 0 0 89 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.1 .2 2 071034001 Port Costa WWTP, Canyon Lake Drive, Port Costa, CA 94569 WWTP same agency N 5 0 0 Y Y Root Intrusion Gravity Mainline None Ongoing identification by CCTV. Deficiencies addressed with spot repairs as needed. Pursuing grant funding for WWTP PLC upgrade and feasibility study for a proposed major CS realignment. 2025 3SSO20077 3 616 06-NOV-25 Park (w/Campground) 250 1 2 1 1 0 0 0 0 0 0 NA 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 0 80 0 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 3 400322963 001, null WWTP other agency N NA 0 0 0 Y Y Other (specify below) Rags, root intrusion, FOG, power failure Pump Station - Power NA NA 2025 3SSO20078 3 616 06-NOV-25 Park (w/Campground) 250 1 2 1 1 0 0 0 0 0 0 NA 1 .5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 3 0 .5 .5 3 400102001 310.14 Santa Rosa HSA, , CA WWTP other agency N NA 0 2 0 Y Y Other (specify below) Rags, root intrusion, power failure Pump Station - Power NA NA NA 2023 5SSO11529 5R 616 25-MAR-24 Park (w/Campground) 50000 4 1 1 1 0 0 0 0 0 1 N/A 1 4 95 0 5 0 0 0 100 100 0 0 0 0 0 100 20 20 Upper and Lower 1 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 0 2 2 5SSO10827 Lake Oroville Area PUD CS, 1960 Elgin Street, Oroville, CA 95966-6613 SSS other agency 5SSO10838 Oroville CS, , Oroville, CA 95965-4952 WWTP other agency N 1 0 0 Y Y Other (specify below) no major spills Other (specify below) no major spills none CCTV inspection 2024 5SSO11529 5R 616 16-FEB-26 Park (w/Campground) 5000 1 1 1 1 0 0 0 0 0 1 N/A 1 4 95 0 5 0 0 0 100 100 0 0 0 0 0 100 20 20 Upper and Lower 1 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 0 2.5 2.5 5A040106001 Oroville D-001, , CA WWTP other agency N N/A N/A 1 0 0 Y Y Other (specify below) no spills Other (specify below) no failures no spills CCTV inspection 2025 5SSO11529 5R 616 03-MAR-26 Park (w/Campground) 50000 4 1 1 0 0 0 0 0 0 1 N/A 1 4 95 0 5 0 0 0 100 100 0 0 0 0 0 100 20 20 Upper and Lower 1 0 5 0 95 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 8 0 0 0 5A040106001 Oroville D-001, , CA WWTP other agency N N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A None CCTV inspection 2023 9SSO11530 9 616 28-MAR-24 Municipal(Public) 155000 4 3 1 1 5 4 1 2 1 0 17 419 4 76 14 4 2 0 100 39 5 56 0 0 0 100 40000 0 None 0 1 40 42 17 0 0 0 0 0 100 0 8 17 1 0 0 0 0 0 26 1 3 6 1 0 0 0 0 0 11 0 136 46 9SSO11530 Rancho Water District WWTP other agency 8SSO10620 EVMWD Regional Plant CS, Lake Elsinore, CA 92531 WWTP same agency N 0 0 0 Y Y Pipe Structural Problem/Failure - Installation Force Main None Replacement of failed pipe sections of force main and continued line cleaning/cctv activities. 2024 9SSO11530 9 616 26-JAN-26 Municipal(Public) 99222 4 3 1 1 5 4 1 2 0 1 N/A 0 40 1 80 19 0 0 0 100 0 0 0 0 0 0 0 4518 0 None 0 0 20 80 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 2 0 0 0 0 0 0 0 2 0 0 0 8 330112001 001, , CA SSS same agency 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 SSS other agency N N/A 0 0 0 N N Damage by Others Not Related to Collection System Construction/Maintenance Sand bags left by contractors in our manhole. Other (specify below) None None Continued line cleaning and CCTV activities. 2025 9SSO11530 9 616 29-APR-26 Municipal(Public) 99222 4 3 1 1 5 4 1 2 0 1 N/A 0 40 1 80 19 0 0 0 100 0 0 0 0 0 0 0 4518 0 None 0 0 20 80 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 2 0 0 0 0 0 0 0 2 0 0 0 9SSO11530 Southern Sections CS SSS same agency 8SSO10620 EVMWD Regional Plant CS SSS same agency N No 0 0 0 N Y Rainfall Exceeded Design, I and I (Separate Collection System Only) N/A Other (specify below) Exceeded system design None Performed ongoing line cleaning and CCTV inspection activities. 2023 5SSO11531 5F 616 29-DEC-25 Municipal(Public) 9708 2 2 2 1 0 0 0 0 0 4 .2 15.6 60 25 11 3 1 0 100 100 0 0 0 0 0 0 0 0 None .2 5 7 6 0 0 0 0 0 0 18 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 2 .2 5d100110001 Orange Cove WWTF, 1805 Monson Avenue, Orange Cove, CA 93646 WWTP same agency N 0 0 0 Debris from Lateral Pump Station - Controls none added to CIP 2024 5SSO11531 5F 616 29-DEC-25 Municipal(Public) 9708 2 2 2 1 0 0 0 0 0 4 .2 15.6 60 25 11 3 1 0 100 100 0 0 0 0 0 0 0 0 None 0 6 7 6 0 0 0 0 0 0 19 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 2 .2 5d100110001 Orange Cove WWTF, 1805 Monson Avenue, Orange Cove, CA 93646 WWTP same agency N 0 0 0 N N Debris from Lateral none Pump Station - Controls none none added to CIP 2023 5SSO11247 5F 616 15-APR-24 Municipal(Public) 1500 0 2 1 0 0 0 0 0 0 0 0 9.6 22 74 2 0 0 2 100 0 0 0 0 0 0 0 385 385 Lower only 1.8 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 WDID5D540130001 Springville P.U.D 35559 Hwy 190 Springville Ca WWTP same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) Root intrusion, grease deposition Gravity Mainline Lower laterals 0 Main cleaning and repair 2024 5SSO11247 5F 616 07-MAY-25 Municipal(Public) 1500 1 2 1 1 0 0 0 0 0 0 0 0 9.6 22 74 2 0 0 2 100 0 0 0 0 0 0 0 385 385 Lower only 1.8 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 WDID5D540130001 Springville P.U.D 35559 Hwy 190 Springville Ca WWTP same agency N N/A 0 0 0 N Y Fats, Oil and Grease (FOG) Root intrusion, grease deposition Gravity Mainline Lower lateral 0 Main cleaning and repair 2024 5SSO20052 5F 616 02-MAY-25 Municipal(Public) 2134 1 0 1 1 0 0 0 0 0 0 OPERATOR IN TRAINING 0 3 5 70 25 0 0 0 100 0 0 0 0 0 0 0 432 432 Upper and Lower 2 0 0 0 100 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 1 5SSO20052 London WWTP CS 37835 KATE RD DINUBA, CA 93618 WWTP same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A 0 0 0 N Y Root Intrusion ROOT INTRUSTION CAUSING BACK UP Other (specify below) PG&E POWER OUTAGE NO REPLACED ELECTRICAL COMPONENTS AT LIFT STATION 2024 5SSO20052 5F 616 04-FEB-25 Municipal(Public) 1785 1 2 1 1 0 2 1 0 0 3 0 3 5 70 25 0 0 0 100 0 0 0 0 0 0 0 432 432 None 2 0 0 0 100 0 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 1 1 5SSO20052 London WWTP CS, 37835 Kate Road, Dinuba, CA 93618 WWTP same agency N NA NA NA NA NA NA NA NA NA NA NA 0 0 0 N Y Other (specify below) SYSTEM PERFORMANCE ANALYST Other (specify below) N/A FOR 2023 0 NA 2023 5SSO11248 5F 616 29-MAR-24 Municipal(Public) 1300 0 0 0 0 0 0 0 0 0 0 Stratford PUD only employs office staff. Field operations, plant operations, and management are provided under contract with Granger Water Specialties, Contract Operator CO-0078. 0 3 65 11 24 0 0 0 100 0 0 0 0 0 0 0 300 1 None 0 0 0 50 25 25 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5D160105001 Stratford WWTF, SE 1/4 of Section 17, T20S, R20E MDB&M , Stratford, CA 93266 WWTP same agency N 0 0 0 Y Y Other (specify below) No Spills Other (specify below) No failures in collection system Will respond as needed. No spills as of this time Currently in the process of designing/constructing new wastewater treatment facilities. 2023 5SSO11249 5F 616 11-APR-24 Municipal(Public) 2669 1 1 0 1 2 0 0 0 0 0 0 0 6.3 12 75 13 0 0 0 100 0 0 0 0 0 0 0 492 0 None 0 0 1 0 0 99 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 .2 5D540108001 Strathmore WWTF, 19481 Road 224 , Strathmore, CA 93267 WWTP same agency N N N none none N none none N none none N none none 0 0 0 N Y Debris-General Pump Station - Controls None Currently working on getting approvals to build a new plant. 2023 5SSO11324 5S 616 16-APR-24 Municipal(Public) 247 0 2 2 1 0 0 0 0 0 2 N/A .7 2.2 66 33 0 0 0 0 100 100 0 0 0 0 0 100 97 0 None 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 .5 0 0 5C220101001 Coulterville WWTF, 10113 Old Highway 49 , Coulterville, CA 95311 WWTP same agency N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0 1 0 N Y Pump Station Failure - Power N/A Pump Station - Power N/A N/A Recently replaced lift station pumps, and repaired associated electrical supply. 2025 5SSO11324 5S 616 16-MAR-26 Municipal(Public) 115 0 2 1 1 1 1 2 0 0 0 0 1 6 75 10 0 0 0 0 0 15 0 0 0 0 0 0 0 2 Upper and Lower 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 5C220101001 Coulterville WWTF, 10113 Old Highway 49 , Coulterville, CA 95311 WWTP same agency 17620 Ephebe Lane Grass Valley CA 95949, 17620 West Ephebe Lane, Grass Valley , CA 95949 N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 1 2 0 N Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure 0 Force Main 0 0 Eliminated the failed, redundant air relief valve and plumbing. Performed cleanup, sanitation, and reporting. 2023 2SSO11533 2 616 29-MAR-24 Other 1995 0 8 1 2 1 0 0 0 0 0 2 Civil PE's, 1 Mechanical PE who work in water/wastewater topics 1 7 91 9 0 0 0 0 100 100 0 0 0 0 0 100 6 6 Upper and Lower 9 0 5 5 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 3 7 0 0 0 0 0 14 0 7 1 2SSO10215 West Bay Sd CS, 500 Laurel Street, Menlo Park, CA 94025 SSS other agency 2 417037002 Silicon Valley Clean Water, 1400 Radio Road, Redwood City, CA 94065 SSS other agency N 0 0 0 Y Y Debris-General Pump Station - Power None Ongoing preventative maintenance 2024 2SSO11533 2 616 18-DEC-25 Other 2157 3 8 1 2 1 0 0 0 0 0 2 Civil PE's, 1 Mechanical PE, 1 Chemical PE who work in water/wastewater topics 1 7.7 81 19 0 0 0 0 100 100 0 0 0 0 0 100 0 0 Upper and Lower 0 2 5 5 88 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 4 4 7 0 0 0 0 0 16 0 6.5 .5 2 41GWRR864895 West Bay Sanitary District, 500 Laurel St, Menlo Park, CA 94025 SSS other agency 2417037002 Silicon Valley Clean Water, 1400 Radio Rd, Redwood City, CA 94065 WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline None Expanded linear feet undergoing preventative maintenance, added camera reconnaissance to preventative maintenance scope. 2025 2SSO11533 2 616 27-MAR-26 Other 2105 3 8 1 2 1 0 0 0 0 0 2 Civil PE's, 1 Mechanical PE, 1 Chemical PE who work in water/wastewater topics 1 7.7 81 19 0 0 0 0 100 100 0 0 0 0 0 100 0 0 Upper and Lower 0 2 5 5 88 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 4 4 7 0 0 0 0 0 16 0 6.5 .5 2 41GWRR864895 Sharon Heights Recycled Water Facility, 2900 Sand Hill Road, Menlo Park, CA 94025 SSS other agency 2 417037002 Redwood City Recycled Water ( Silicon Valley Clean Water ), 1400 Radio Road, Redwood City, CA 94065 WWTP other agency N 0 0 0 Y Y Root Intrusion Gravity Mainline None Updating SLAC's SSMP 2025 3SSO11608 3 616 23-MAR-26 Other 1500 1 2 1 1 0 0 0 1 0 1 SWRCB WASTEWATER 2 6 8 40 60 0 0 0 0 100 65 35 0 0 0 100 730 0 None 0 0 30 40 20 10 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1 3 2 3SSO11608 WILD CHERRY CYN PLANT, 3560 WILD CHERRY CYN WWTP same agency N N/A N/A N/A 0 0 0 N Y Pump Station Failure - Controls SCADA FALIURE DUE TO COMMUNICATION LOSS IN HILLS, POWER OUTAGES Pump Station - Controls SCADA CONTROLS AND LEVEL TRANSDUCERS GOING OUT NONE CAPITAL YEARLY PROJECTS YEARLY SCADA UPGRADES AND PUMP REHAB 2024 6SSO18094 6A 616 06-DEC-25 Park (w/Campground) 1000 3 1 1 1 0 0 0 0 0 0 N/A .5 3 90 0 0 0 0 0 0 10 0 0 0 0 0 0 19 19 Upper and Lower .5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 .5 .5 6A290011000 Tahoe Truckee Sanitation Agency, 13720 Butterfield Drive, Truckee, CA 96161 WWTP other agency N N/A 1 0 0 N Y Root Intrusion N/A Manhole N/A N/A California State Parks addresses system deficiencies each year to prioritize how funding is allocated. 2023 5SSO11556 5S 616 25-MAR-24 Park (w/Campground) 120000 1 1 1 0 0 0 0 0 0 1 N/A 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 16 16 Upper and Lower 1 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 1 0 0 5A170101001 Kelseyville Co Water Works District, , Kelseyville, CA WWTP same agency N 0 1 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A CCTV inspection 2024 5SSO11556 5S 616 03-MAR-26 Park (w/Campground) 120000 1 1 1 0 0 0 0 0 0 1 N/A 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 16 16 Upper and Lower 1 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 .2 .1 5A170101001 Kelseyville Co Water Works District, , Kelseyville, CA WWTP other agency N N/A 0 1 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A CCTV inspection 2025 5SSO11556 5S 616 03-MAR-26 Park (w/Campground) 120000 1 1 1 0 0 0 0 0 0 1 N/A 1 1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 16 16 Upper and Lower 1 0 0 10 90 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 0 5A170101001 Kelseyville Co Water Works District, , Kelseyville, CA WWTP other agency N N/A 0 1 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A CCTV inspection 2023 3SSO11534 3 616 29-MAR-24 Park (w/Campground) 100 0 0 0 0 0 0 0 0 0 0 System contracts with Fluid Resource Management, a licensed contract operator that employs several certified wastewater operators. 3 3 100 0 0 0 0 0 0 100 0 0 0 0 0 0 2 100 Upper and Lower 2 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 5 1 3 0 3 400112001 Lopez Rec Area, 6800 Lopez Drive , Arroyo Grande, CA 93420 WWTP same agency N N/A 0 1 0 N Natural Disaster (specify below) During January 2023, a major spill was caused by significant rainfall resulting in a road and effluent discharge line being washed away. Other (specify below) During 2023, the only major spill was caused by a significant storm event. N/A N/A 2024 3SSO11534 3 616 20-MAR-25 Park (w/Campground) 100 0 0 0 0 0 0 0 0 0 0 System contracts with Fluid Resource Management, a licensed contract operator that employs several certified wastewater operators. 3 3 100 0 0 0 0 0 0 100 0 0 0 0 0 0 2 100 Upper and Lower 2 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 5 1 0 0 3 400112001 Lopez Rec Area, 6800 Lopez Drive , Arroyo Grande, CA 93420 WWTP same agency N N/A 0 1 0 Y N Other (specify below) No spills occurred during 2024. Other (specify below) No spills occurred during 2024. No spills occurred during 2024. No spills occurred during 2024. 2025 3SSO11534 3 616 23-MAR-26 Park (w/Campground) 100 0 0 0 0 0 0 0 0 0 0 System contracts with Fluid Resource Management, a licensed contract operator that employs several certified wastewater operators. 3 3 100 0 0 0 0 0 0 100 0 0 0 0 0 0 2 100 Upper and Lower 2 0 0 0 100 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 5 1 0 0 3 400112001 Lopez Rec Area, 6800 Lopez Drive , Arroyo Grande, CA 93420 WWTP same agency N N/A 0 1 0 Y N Other (specify below) No spills occurred during 2025. Other (specify below) No spills occurred during 2025. No spills occurred during 2025. No spills occurred during 2025. 2025 6SSO11538 6A 616 23-MAR-26 Municipal(Public) 862 1 0 0 0 0 0 0 0 0 0 5.5 10 100 0 0 0 0 0 100 0 0 0 0 0 100 100 862 0 None 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 15 0 0 6SSO11538 502-907 Mahogany Way, Susanville, CA 96130 (Evaporation Ponds) SSS same agency N 0 1 0 N Y Debris from Lateral No Spills have occurred this year Other (specify below) We haven't had any spills, but our system has failures. Pond liner tears, lift station check valves, and we have a temporary by bass at lift station 1. We do quarterly testing of our wet wells surrounding our evaporation ponds. These have come back clean showing no contamination. Increased inspection frequency, development and updating of SSMP, evaluation of replacement vs repair strategies, and pursuit of technical assistance and funding. We developed an ongoing sewer committee to monitor and prioritize fixes and repairs. 2023 2SSO11539 2 616 26-DEC-25 Municipal(Public) 750 0 2 1 1 0 0 0 0 0 0 0 24 75 25 0 0 0 0 100 0 0 0 0 0 0 0 10 10 Upper and Lower 1 56 0 0 0 44 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 SSS other agency N 0 0 0 N Y Root Intrusion No spills Other (specify below) None None None 2023 4SSO11540 4 616 31-DEC-25 Municipal(Public) 16681 3 2 0 2 1 0 0 1 2 0 None 0 42 16 64 19 1 0 0 100 0 0 0 0 0 0 0 4318 0 None 0 3 26 14 20 37 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 4A560101001 Fillmore Water Recycling Plant, 1580 River Street, Fillmore CA 93015 WWTP same agency N Not applicable 1 0 0 Y Y Natural Disaster (specify below) Not applicable Manhole Not applicable None Reconstruction 2024 4SSO11540 4 616 24-MAR-26 Municipal(Public) 16681 3 2 0 2 1 0 0 1 2 0 Not applicable. 0 43 16 64 19 1 0 0 100 0 0 0 0 0 0 0 4318 0 None 0 3 26 14 20 37 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8.5 8.5 4A560101001 Fillmore Water Recycling Plant, 1580 River Street, Fillmore CA 93015 WWTP same agency N Not applicable 1 0 0 Y Y Fats, Oil and Grease (FOG) Not applicable Manhole Not applicable None Maintenance - Cleaning 2025 4SSO11540 4 616 24-MAR-26 Municipal(Public) 16681 2 2 0 2 1 0 0 0 0 0 N/A 0 43 16 64 19 1 0 0 100 0 0 0 0 0 0 0 4318 0 None 0 3 26 14 20 37 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11.1 6.4 4A560101001 Fillmore Water Recycling Plant, 1580 River Street, Fillmore CA 93015 WWTP same agency N N N/A 1 0 0 Y Y Fats, Oil and Grease (FOG) N/A Manhole N/A None Maintenance - Cleaning 2023 5SSO11543 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA .9 5 95 5 0 0 0 0 100 100 0 0 0 0 0 100 45 42 Upper and Lower 45 2 3 10 65 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 35 0 0 0 0 0 0 0 35 .1 .5 0 5D540700002 Cedar Grove WWTF, 105605 Kings Canyon Road, Kings Canyon, CA 93633 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 0 0 Y Y Debris-wipes/Non-disposables NA Other (specify below) Air Relief Valve Manhole due to debris wipes NA NA 2024 5SSO11543 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA .9 5 95 5 0 0 0 0 100 100 0 0 0 0 0 100 45 45 Upper and Lower 45 2 3 10 65 20 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 35 0 0 0 0 0 0 0 35 .1 .5 0 5D540700002 Cedar Grove WWTF, 105605 Kings Canyon Road, Kings Canyon, CA 93633 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 0 0 Y Y Debris-wipes/Non-disposables NA Other (specify below) Air Relief Valve Manhole due to debris wipes NA NA 2023 9SSO11203 9 616 21-MAR-24 Municipal(Public) 2012 3 3 1 1 3 0 1 0 0 2 5 50 0 100 0 0 0 0 100 100 0 0 0 0 0 100 900 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 0 1 1 9SSO11203 SSS same agency N 1 0 0 Y Debris from Construction Manhole No ongoing spill investigation going on at this time. Have all collection lines videoed during and after construction is completed of new lines. 2024 9SSO11203 9 616 23-DEC-25 Municipal(Public) 941 1 4 1 1 3 0 1 0 0 2 6 11.8 0 100 0 0 0 0 100 100 0 0 0 0 0 100 941 0 None 0 80 0 0 20 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 3 0 1 3 9 000000830 San Diego Region-Wide Waiver Area, , CA WWTP other agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 3 2 0 Y Y Debris from Construction Upper Lateral 0 0 0 2025 9SSO11203 9 616 20-MAR-26 Municipal(Public) 941 0 6 1 1 2 1 1 0 0 2 6 11.8 20 80 0 0 0 0 100 100 0 0 0 0 0 100 941 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 8 9 000000830 San Diego Region-Wide Waiver Area, , CA SSS same agency N 1 2 0 Y Y Debris from Construction Manhole No ongoing investigations no deficiencies at this time 2023 2SSO10224 2 616 29-MAR-24 Municipal(Public) 1193 2 13 3 1 3 2 2 0 0 0 NA 0 7 82 6 9 0 0 3 100 0 0 0 0 0 0 0 425 0 None 0 0 15 0 0 0 85 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 0 2SSO10099 Burlingame City CS, 501 Primrose Road, Burlingame, CA 94010 SSS other agency 2 417005001 Burlingame WWTP 1103 Airport Burlingame, CA, 94010 WWTP other agency Y N Burlingame City CS 2SSO10099 NA 8 0 0 Y Y Other (specify below) 1 spill due to root intrusion and 1 spill due to damage by others not related to Collection System Construction/Maintenance. Gravity Mainline NA Investigations completed Spot repair was completed on both segments of gravity mainline. 2024 2SSO10224 2 616 31-MAR-25 Municipal(Public) 1193 1 14 3 1 3 2 2 0 0 0 NA 0 6.6 82 6 9 0 0 3 100 0 0 0 0 0 0 0 425 0 None 0 0 15 0 0 0 85 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14.3 .1 2 417005001 Burlingame WWTP 1103 Airport Burlingame, CA, 94010 WWTP other agency Y N Burlingame City CS 2SSO10099 NA 8 0 0 Y Y Other (specify below) no spills in 2024 Other (specify below) no spills in 2024 no spills in 2024 no spills in 2024 2025 2SSO10224 2 616 24-MAR-26 Municipal(Public) 1193 1 16 3 1 3 3 2 0 0 1 NA 0 6.6 82 6 9 0 0 3 100 0 0 0 0 0 0 0 423 0 None 0 0 15 0 0 0 85 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13.7 .1 2 417005001 Burlingame WWTP, 1103 Airport, Burlingame, CA, 94010 WWTP other agency Y N Burlingame City CS 2SSO10099 NA 8 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 2SSO10225 2 616 29-MAR-24 Municipal(Public) 3657 2 13 3 1 3 2 2 0 0 0 NA 0 18 84 8 8 0 0 0 100 0 0 0 0 0 0 0 1450 0 None 0 0 8 0 0 92 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 0 2SSO10142 Town Of Hillsborough CS, 1600 Floribunda Hillsborough, CA, 94010 SSS other agency 2SSO10183 San Mateo City CS, 330 West 20Th San Mateo, CA, 94403 SSS other agency 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency Y N Tower Road Complex CS 2SSO11539 N San Mateo City CS 2SSO10183 NA 4 0 0 Y Y Other (specify below) no spills in 2023 Other (specify below) no spills in 2023 no spills in 2023 no spills in 2023 2024 2SSO10225 2 616 31-MAR-25 Municipal(Public) 3657 1 14 3 1 3 2 2 0 0 0 NA 0 17.9 83 8 9 0 0 0 100 0 0 0 0 0 0 0 1450 0 None 0 0 8 0 0 92 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23.2 0 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency Y N Tower Road Complex CS 2SSO11539 N San Mateo City CS 2SSO10183 NA 4 0 0 Y Y Root Intrusion NA Gravity Mainline NA Investigation completed Spot repair on gravity mainline was completed 2025 2SSO10225 2 616 24-MAR-26 Municipal(Public) 3657 1 16 3 1 3 3 2 0 0 1 NA 0 17.1 83 8 9 0 0 0 100 0 0 0 0 0 0 0 1454 0 None 0 0 8 0 0 92 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19.4 .2 2 417035001 San Mateo WWTP, 2050 Detroit Drive, San Mateo, CA 94404 WWTP other agency Y N Tower Road Complex CS 2SSO11539 N San Mateo City CS 2SSO10183 NA 4 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 2SSO10226 2 616 29-MAR-24 Municipal(Public) 719 2 13 3 1 3 2 2 0 0 0 NA 0 4 97 2 0 0 0 1 100 0 0 0 0 0 0 0 277 0 None 0 0 7 0 0 93 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 2SSO10177 San Carlos City CS, 600 Elm Street, San Carlos, CA 94070 SSS other agency 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N San Carlos City CS 2SSO10177 NA 5 0 0 Y Y Root Intrusion NA Gravity Mainline NA Investigation completed Spot repair on gravity mainline was completed 2024 2SSO10226 2 616 31-MAR-25 Municipal(Public) 719 1 14 3 1 3 2 2 0 0 0 NA 0 4 97 2 0 0 0 1 100 0 0 0 0 0 0 0 277 0 None 0 0 7 0 0 93 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5.7 .1 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N San Carlos City CS 2SSO10177 NA 5 0 0 Y Y Other (specify below) no spills in 2024 Other (specify below) no spills in 2024 no spills in 2024 no spills in 2024 2025 2SSO10226 2 616 24-MAR-26 Municipal(Public) 719 1 16 3 1 3 3 2 0 0 1 NA 0 4 97 2 0 0 0 1 100 0 0 0 0 0 0 0 280 0 None 0 0 7 0 0 93 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5.6 .1 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N San Carlos City CS 2SSO10177 NA 5 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 2SSO10227 2 616 29-MAR-24 Municipal(Public) 4571 2 13 3 1 3 2 2 0 0 0 NA 0 28 92 7 0 0 0 1 100 0 0 0 0 0 0 0 1680 0 None 0 0 2 89 0 9 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 0 2SSO10168 Redwood City CS, 1400 Broadway Redwood City, CA, 94062 SSS other agency 2SSO10177 San Carlos City CS, 600 Elm Street, San Carlos, CA 94070 SSS other agency 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 25 0 0 Y Y Root Intrusion NA Other (specify below) Failure point for 1 spill was at the manhole, failure point for the other spill was in gravity mainline. Investigations completed One spot repair was completed on the gravity mainline. The manhole was added to higher frequency maintenance schedule. 2024 2SSO10227 2 616 31-MAR-25 Municipal(Public) 4571 1 14 3 1 3 2 2 0 0 0 NA 0 28.3 92 7 0 0 0 1 100 0 0 0 0 0 0 0 1682 0 None 0 0 2 90 0 8 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 0 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 25 0 0 Y Y Other (specify below) no spills in 2024 Other (specify below) no spills in 2024 no spills in 2024 no spills in 2024 2025 2SSO10227 2 616 24-MAR-26 Municipal(Public) 4571 1 16 3 1 3 3 2 0 0 1 NA 0 28.4 92 7 0 0 0 1 100 0 0 0 0 0 0 0 1692 0 None 0 0 2 90 0 8 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.9 .3 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N 25 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 2SSO10228 2 616 29-MAR-24 Municipal(Public) 28816 2 13 3 1 3 2 2 0 0 0 NA 0 81 74 10 10 6 0 0 100 0 0 0 0 0 0 0 7120 0 None 0 2 5 0 0 0 93 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 99 1 2SSO10168 Redwood City CS, 1400 Broadway Redwood City, CA, 94062 SSS other agency 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N Woodside CS 2SSO10218 NA 20 0 0 Y Y Other (specify below) 14 spills due to downstream agency trunk line compromised, 2 spills due to FOG and 1 spill due to root intrusion. Other (specify below) Failure point for 14 spills was at the downstream agency trunk line. Failure point for the other 3 spills was at the gravity mainline. Investigations completed Downstream agency repaired the failed pipe in summer 2023. Two spot repairs on gravity mainline were completed. One gravity mainline segment was added to higher frequency maintenance schedule. One gravity mainline segment will be added to higher frequency maintenance schedule before December 2024. 2024 2SSO10228 2 616 31-MAR-25 Municipal(Public) 28816 1 14 3 1 3 2 2 0 0 0 NA 0 81 73 11 10 6 0 0 100 0 0 0 0 0 0 0 7127 0 None 0 5 5 0 0 0 90 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 104 1.1 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N Woodside CS 2SSO10218 NA 20 0 0 Y Y Other (specify below) 2 spills due to root intrusion and 1 spill due to FOG and wipes Gravity Mainline NA Investigations completed Spot repairs were completed on the 2 gravity mainlines where the cause was root intrusion. Educational brochures were sent to residents of apartments connected and upstream of the gravity mainlines where the cause was FOG and wipes. 2025 2SSO10228 2 616 24-MAR-26 Municipal(Public) 28816 1 16 3 1 3 3 2 0 0 1 NA 0 81.1 73 11 10 6 0 0 100 0 0 0 0 0 0 0 7081 0 None 0 5 5 0 0 0 90 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 97.3 1.9 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N Woodside CS 2SSO10218 NA 20 0 0 Y Y Other (specify below) 2 spills due to the downstream agency’s compromised trunk line, 1 spill due to FOG and wipes, 1 spill due to FOG, 1 spill due to root intrusion and wipes. Other (specify below) failure points of 3 spills at gravity mainline and failure points of 2 spills at downstream agency trunk line. Investigations completed. Spot repairs were completed on the two gravity mainlines where the causes were root intrusion with wipes and FOG. Educational brochures were distributed to residents upstream of the blockages associated with FOG and wipes, FOG, and root intrusion with wipes. Coordination discussions were held with the downstream agency regarding improved communication moving forward. 2023 2SSO10229 2 616 29-MAR-24 Municipal(Public) 354 2 13 3 1 3 2 2 0 0 0 NA 0 1 95 0 0 0 0 5 100 0 0 0 0 0 0 0 136 0 None 0 10 0 0 0 90 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2SSO10168 Redwood City CS, 1400 Broadway Redwood City, CA, 94062 SSS other agency 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 0 0 0 Y Y Other (specify below) no spills in 2023 Other (specify below) no spills in 2023 no spills in 2023 no spills in 2023 2024 2SSO10229 2 616 31-MAR-25 Municipal(Public) 354 1 14 3 1 3 2 2 0 0 0 NA 0 1.4 98 0 0 0 0 2 100 0 0 0 0 0 0 0 137 0 None 0 10 0 0 0 90 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.6 0 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 0 0 0 Y Y Other (specify below) no spills in 2024 Other (specify below) no spills in 2024 no spills in 2024 no spills in 2024 2025 2SSO10229 2 616 24-MAR-26 Municipal(Public) 354 1 16 3 1 3 3 2 0 0 1 NA 0 1.5 98 0 0 0 0 2 100 0 0 0 0 0 0 0 135 0 None 0 10 0 0 0 90 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 0 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 2SSO10230 2 616 29-MAR-24 Municipal(Public) 124 2 13 3 1 3 2 2 0 0 0 NA 0 3 5 62 8 0 0 25 100 0 0 0 0 0 0 0 54 0 None 0 2 0 0 0 98 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 2SSO10177 San Carlos City CS, 600 Elm Street, San Carlos, CA 94070 SSS other agency 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency N NA 1 0 0 Y Y Other (specify below) no spills in 2023 Other (specify below) no spills in 2023 no spills in 2023 no spills in 2023 2024 2SSO10230 2 616 31-MAR-25 Municipal(Public) 124 1 14 3 1 3 2 2 0 0 0 NA 0 2.9 4 63 8 0 0 25 100 0 0 0 0 0 0 0 54 0 None 0 2 0 0 0 98 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.4 0 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N San Carlos City CS 2SSO10177 NA 1 0 0 Y Y Other (specify below) no spills in 2024 Other (specify below) no spills in 2024 no spills in 2024 no spills in 2024 2025 2SSO10230 2 616 24-MAR-26 Municipal(Public) 124 1 16 3 1 3 3 2 0 0 1 NA 0 2.9 4 63 8 0 0 25 100 0 0 0 0 0 0 0 54 0 None 0 2 0 0 0 98 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.4 0 2 417037001 Silicon Valley Clean Water WWTP, 1400 Radio Road Redwood City, CA 94065 WWTP other agency Y N San Carlos City CS 2SSO10177 NA 1 0 0 Y Y Other (specify below) no spills in 2025 Other (specify below) no spills in 2025 no spills in 2025 no spills in 2025 2023 5SSO10901-C 5S 616 04-DEC-25 Municipal(Public) 139174 1 18 2 1 3 5 4 1 0 0 8 350 9 45 27 9 10 0 100 18 3 10 0 69 0 100 32133 0 None 0 1 13 8 7 14 25 29 1 2 100 0 2 0 0 2 0 0 0 0 4 0 2 0 0 2 0 0 0 0 4 1 121 23 5A340108002 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency Y N CSU Sacramento Collection System 5SSO10882 N/A 0 0 0 Y Y Root Intrusion FOG, Debris (wipes) Gravity Mainline None flow monitoring, model calibration, CIP (condition assessment, capacity assurance, prioritization) 2024 5SSO10901-C 5S 616 04-DEC-25 Municipal(Public) 156353 2 38 4 1 8 13 5 2 0 1 0 7.9 351.8 10 44 26 9 11 0 100 20 3 10 0 67 0 100 31197 0 None 0 1 13 8 7 14 25 29 1 2 100 0 2 0 0 2 0 0 0 0 4 0 1 0 0 2 0 0 0 0 3 .4 124.3 20.4 5SSO10912 SacSewer - 10060 Goethe Rd, Sacramento, CA 95827 WWTP other agency Y N CSU Sacramento Collection System 5SSO20001 N UC Davis Medical Center 5SSO11463 N/A 0 0 0 Y Y Root Intrusion Also FOG and debris (rags) Gravity Mainline N/A None scheduling of preventative maintenance and cleaning activities, condition assessment, flow monitoring, project prioritization 2025 5SSO10901-C 5S 616 26-MAR-26 Municipal(Public) 141939 2 45 5 1 8 10 4 2 0 1 8 351 9 45 26 9 10 1 100 20 4 10 0 66 0 100 31238 0 None 0 1 13 8 7 14 25 29 1 2 100 0 2 1 0 3 0 1 0 0 7 0 0 0 0 0 0 0 0 0 0 1 139 12 5A340108002 SacSewer - 8521 Laguna Station Road Elk Grove, CA 95758 WWTP other agency Y N CSU Sacramento Collection System 5SSO20001 N UC Davis Medical Center 5SSO11463 0 0 0 Y Y Root Intrusion Gravity Mainline None scheduling of preventative maintenance and cleaning activities, condition assessment, flow monitoring, project prioritization 2023 5SSO11675 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA 2.5 4 95 5 0 0 0 0 100 0 100 0 0 0 0 100 60 60 Upper and Lower 60 0 0 50 40 5 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 .2 .5 0 5D541003003 Clover Creek WWTF, Lodgepole Area , CA 93262 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 1 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA NA 2024 5SSO11675 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA 2.5 4 95 5 0 0 0 0 100 0 100 0 0 0 0 100 60 60 Upper and Lower 60 0 0 50 40 5 5 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 .2 .5 0 5D541003003 Clover Creek WWTF, Lodgepole Area , CA 93262 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 1 1 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA NA 2023 5SSO11676 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA 1 8 95 5 0 0 0 0 100 100 0 0 0 0 0 100 40 40 Upper and Lower 40 0 0 10 10 80 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 80 0 0 0 0 0 0 0 80 .2 .5 0 5D540700001 Grant Grove WWTF, 84300 Swale Road, Kings Canyon, CA 93633 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA NA 2024 5SSO11676 5F 616 25-DEC-25 Park (w/Campground) 2900 0 2 1 4 0 0 0 0 0 0 NA 1 8 95 5 0 0 0 0 100 100 0 0 0 0 0 100 40 40 Upper and Lower 40 0 0 10 10 80 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 80 0 0 0 0 0 0 80 .2 .5 0 5D540700001 Grant Grove WWTF, 84300 Swale Road, Kings Canyon, CA 93633 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Debris-wipes/Non-disposables NA Manhole NA NA NA 2023 5SSO11677 5F 616 25-DEC-25 Other 2900 0 2 1 4 0 0 0 0 0 0 NA .1 1.5 100 0 0 0 0 0 100 100 0 0 0 0 0 100 39 39 Upper and Lower 1.5 5 0 0 20 75 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 80 0 0 0 0 0 80 .2 .5 0 5D541003004 Ash Mountain WWTF, Ash Mountain , CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) No spill at this facility Other (specify below) NA NA NA 2024 5SSO11677 5F 616 25-DEC-25 Other 2900 0 2 1 4 0 0 0 0 0 0 NA .1 1.5 100 0 0 0 0 0 0 100 0 0 0 0 0 0 39 39 Upper and Lower 1.5 5 0 20 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 80 0 0 0 0 0 0 80 .2 .5 0 5D541003004 Ash Mountain WWTF, Ash Mountain , CA WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Other (specify below) No spill at this facility Other (specify below) NA NA NA 2023 5SSO11656 5F 616 23-DEC-25 Municipal(Public) 6030 0 2 1 1 0 0 0 0 0 0 0 20 0 85 15 0 0 0 100 0 0 0 0 0 0 0 1388 1388 Lower only 3 0 15 35 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 5 1010026 WWTP other agency 5SSO11202 WWTP other agency N N 0 0 0 Y Y Debris-General No major spills Gravity Mainline No system infrastructure failure points none On-going routine maintenance 2024 5SSO11656 5F 616 23-DEC-25 Municipal(Public) 6100 1 1 1 1 0 0 0 0 0 0 0 20 0 85 15 0 0 0 100 0 0 0 0 0 0 0 1388 1388 Lower only 3 0 15 35 50 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 3 5SSO11202 WWTP other agency 5SSO11656 WWTP same agency N 0 0 0 N Y Debris-General Other (specify below) No spills reported none n/a 2023 2SSO11651 2 616 07-APR-24 Other 200 0 2 2 2 0 2 0 0 1 3 2 0 10 0 0 0 0 0 10 90 0 0 0 0 0 90 136 136 Upper and Lower 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 0 0 0 0 0 0 1 0 2SS011508 Napa River Reclamation District WWTP same agency N 0 0 0 N Y Other (specify below) No spills Pump Station - Power Currently upgrading lift stations None Currently upgrading system 2024 2SSO11651 2 616 26-FEB-26 Other 200 2 0 1 1 0 2 0 0 0 0 2 .2 0 0 0 0 0 0 0 100 0 0 0 0 0 100 136 136 Lower only 2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 2SS011508 Napa River Reclamation District WWTP same agency N 0 0 0 N Y Pump Station Failure - Power no spills, the operator was doing a routine check and found it just in time. Pump Station - Power Corrosion of wiring in splice box, high level caused the water level to go into the spice box and short out float wiring. no spill investigation Pumped out lift station and rewired corroded wires and re-landed float wires 2025 2SSO11651 2 616 26-FEB-26 Other 200 2 2 2 2 0 2 0 0 0 2 2 .2 0 0 0 0 0 0 0 100 0 0 0 0 0 100 136 136 Lower only .2 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 2SS011508 Napa River Reclamation District WWTP same agency N 0 0 0 N Y Pump Station Failure - Power Category 4 spill, roughly 20 gallons of sewer percolating out of the manhole. Was captured and cleaned up. Pump Station - Power Old power panels and infrastructure needs to be updated. NONE We are currently upgrading lift station and panels and do a few of them a year. Half of them have already been upgraded and another company has been hired to do the rest. 2023 1SSO11652 1 616 19-DEC-25 Landfill 25 0 0 0 2 0 0 0 0 0 0 Outsourced to local contractor 1.5 3.5 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 None 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 3 2 2 1b83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 2 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Gravity Mainline None Added cleanout ports and replaced air release valves 2024 1SSO11652 1 616 19-DEC-25 Landfill 25 0 0 0 2 0 0 0 0 0 0 1.5 3.5 0 100 0 0 0 0 100 0 100 0 0 0 0 100 0 0 None 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 3 2 2 1b83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 2 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Gravity Mainline None Installed cleanouts and air valves 2025 1SSO11652 1 616 13-MAR-26 Landfill 25 0 0 0 2 0 0 0 0 0 0 N/A 1.5 3.5 0 100 0 0 0 0 100 0 100 0 0 0 0 100 0 0 None 0 0 100 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 3 2 2 1b83099oson 114.21 Laguna De Santa Rosa HSA, , CA WWTP other agency N 2 0 0 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Pump Station - Controls No spill investigation Pumps generally inspected weekly 2023 5SSO11657 5S 616 04-APR-24 Municipal(Public) 114 0 0 0 0 0 0 0 0 0 0 None, operated and maintained by others. 0 2 0 0 100 0 0 0 0 100 0 0 0 0 0 0 1 1 Upper and Lower 1 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO11657 Florin Road Sewer, 827 7th Street, 301 Sacramento, CA 95814 SSS other agency N N none none N none none N none none N none none N none none 0 0 0 Y Y Other (specify below) No SSO's or major spills in the last 10 years Other (specify below) None, no SSO's in the past 10 years None None 2024 5SSO11657 5S 616 30-DEC-25 Municipal(Public) 163 0 0 0 0 0 0 0 0 0 0 None, maintained by others 0 2 0 0 100 0 0 0 0 100 0 0 0 0 0 0 1 1 Upper and Lower .3 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO10912 SASD SSS other agency 5A340108002 8521 Laguna Station Road, Elk Grove, CA 95758 WWTP other agency N 0 0 0 Y Y Debris-General No spills in the last 10 years Gravity Mainline None in last 10 years None None 2025 5SSO11657 5S 616 30-MAR-26 Municipal(Public) 172 0 0 0 0 0 0 0 0 0 0 Maintained by others. 0 2 0 0 100 0 0 0 100 100 0 0 0 0 0 100 1 1 Upper and Lower 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5SSO10912 SASD SSS other agency N 0 0 0 Y N Debris-General No spills in the last 10 years Gravity Mainline None None None 2023 2SSO11610 2 616 28-MAR-24 Airport 170000 8 10 3 3 0 1 0 1 0 0 Chief of Operations is a certified Advanced Water Treatment Operator 8 4 35 28 35 1 0 1 100 40 14 20 22 4 0 100 0 0 Upper and Lower 2 0 6 60 34 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 1 0 4 16 0 0 0 0 0 0 0 0 0 0 2SSO11610 San Francisco International Airport PO Box 8097 San Francisco, CA 94128 WWTP same agency N 0 0 0 Y Y Debris from Construction Other (specify below) There were only two overflows from the system in 2023. One was from a failed cleanout on a force main. The other was due to asphalt in a gravity line. None Major upgrades to the force main made in 2019 reduced SSOs dramatically. Note for questions 5d and 5e: The Airport owns the entire sewer system. The industrial sewer system does not have traditional laterals. Most drains and buildings drain directly to a pump station. 2024 2SSO11610 2 616 06-JAN-26 Airport 170000 1 17 6 1 4 8 8 2 2 0 One manager holds an AWTO certification. 8 4 35 28 35 1 0 1 100 40 14 20 22 4 0 100 0 0 Upper and Lower 2 0 6 60 34 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 16 0 0 0 0 0 0 0 0 0 0 2 417033001 Building 910, San Francisco, ca 94128 WWTP same agency Y N United States Coast Guard (Storm water only) NA 0 0 0 Y Y Operator Error (specify below) Contractor failed to restore power after maintenance. Pump Station - Power There was only 1 SSO for the industrial system in 2024 None Upgrades to force main in 2019 dramatically reduced SSOs. A comprehensive risk assessment of the entire system was conducted in 2024 and a risk profile was developed for all pipes. 2025 2SSO11610 2 616 26-MAR-26 Airport 170000 0 16 6 1 3 8 6 2 2 0 One manager holds an AWTO certification 8 4 35 28 35 1 0 1 100 40 14 20 22 4 0 100 0 0 Upper and Lower 2 0 6 60 34 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 4 16 0 0 0 0 0 0 20 0 0 0 2 417033001 Po Box 8097 San Francisco, CA 94128 WWTP same agency Y N United States Coast Guard NA 0 0 0 Y Y Operator Error (specify below) Only 4 spills, 2 were due to operator error (failure to turn pump station back on), one was construction debris. and one was due to a power failure. Pump Station - Power Note: for sections 5d-5F and 16: SFIA owns 100% of the sewer system. Upper and lower lateral have no meaning as there is no private property connected to the system. Generally SFIA maintains all of the sewer system including laterals, but responsibility for laterals varies from tenant to tenant based upon lease agreement. A comprehensive risk assessment of the entire system was conducted in 2024 and a risk profile was developed for all pipes. Major upgrades to force main in 2019 dramatically reduced SSOs. A comprehensive risk assessment of the entire system was conducted in 2024 and a risk profile was developed for all pipes. 2023 1SSO11752 1 616 03-FEB-26 Municipal(Public) 1250 0 2 1 1 0 0 0 0 0 0 Glenn Bernald (#39635) has State Wastewater Treatment Plant Certificates. 1 8 55 25 20 0 0 0 100 100 0 0 0 0 0 0 625 5 Lower only 3 0 0 10 0 90 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 1B81129OHUM Blue Lake City POTW, 100 Wastewater Way , Blue Lake, CA 95525 WWTP same agency N N NA 4 1 0 N Y Pump Station Failure - Power NA Pump Station - Power NA No further investigation needed. Circuit board on generator failed when there was a power outage ,shutting down the electrical power. Portable generator brought to site during failure. Main generator was repaired, and is in service. Portable generator brought to Main Lift Station site to be used as a back-up in the event of main generator failure. 2024 1SSO11752 1 616 17-MAR-26 Municipal(Public) 1200 1 2 1 1 0 1 0 0 0 0 Glenn Bernald (39635) 1 5 55 25 20 0 0 0 100 100 0 0 0 0 0 100 625 5 Lower only 3 0 0 10 0 90 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 .25 0 1B811290HUM Blue Lake City POTW, 1 Wastewater Way, Blue Lake, CA WWTP same agency N N/A 4 1 0 N Y Other (specify below) None Other (specify below) None None None 2025 1SSO11752 1 616 03-FEB-26 Municipal(Public) 1250 0 2 1 1 0 0 0 0 0 0 Glenn Bernald (#396635) 1 8 55 25 20 0 0 0 100 100 0 0 0 0 0 0 625 5 Lower only 3 0 0 10 0 90 0 0 0 0 100 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 1B81129OHUM Blue Lake City POTW, 100 Wastewater Way , Blue Lake, CA 95525 WWTP same agency N N N/A 4 1 0 N Y Pump Station Failure - Power N/A Pump Station - Power N/A No further investigation needed. Circuit board on generator failed when there was a power outage, shutting down the electrical power. Portable generator brought to site during failure. Main generator was repaired, and is in service. Portable generator brought to Main Lift Station site to be used as a aback-up in the event of main generator failure. 2023 8SSO11753 8 616 04-DEC-25 Hospital 8000 7 7 1 0 5 2 1 0 0 0 None 0 1 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 25 Upper and Lower 1 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 360105001 Colton Water Reclamation Facility CS, 160 South 10th Street, Colton, CA 92324 WWTP other agency N N None 0 0 0 N Y Other (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease Other (specify below) Laterals, manholes None None 2024 8SSO11753 8 616 04-DEC-25 Hospital 8000 7 7 1 0 5 2 1 0 0 0 None 1 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 25 Upper and Lower 1 0 10 90 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 360105001 Colton Water Reclamation Facility CS, 160 South 10th St., Colton, CA WWTP other agency N None 0 0 0 N Y Other (specify below) Debris from laterals, wipes/non-disposables, fats, oil and grease Other (specify below) Lateral and manholes None Regular cleaning and CCTV 2023 1SSO11611 1 616 13-FEB-24 Municipal(Public) 2300 1 1 0 1 2 1 0 0 0 0 0 2 15 64 35 1 0 0 0 100 13 87 0 0 0 0 100 470 470 Lower only 2 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 4 0 0 0 0 0 0 0 0 0 2 2 1A97069 Trinity County Waterworks District #1 Hayfork WWTP, 502 Tule Creek Road, Hayfork, CA 96041 WWTP same agency N N 0 0 N 0 0 N 0 0 N 0 0 N 0 0 0 0 0 0 Y N Debris-wipes/Non-disposables 0 Upper Lateral 0 0 cctv our collection system to try to reduce I&I as much as possible. 2024 1SSO11611 1 616 04-FEB-26 Municipal(Public) 2300 1 2 0 1 2 1 0 0 0 0 0 2 15 64 35 1 0 0 0 100 13 87 0 0 0 0 100 470 470 Lower only 2 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 4 0 0 0 0 0 0 0 0 0 3 3 1A97069 Trinity County Waterworks District #1 Hayfork WWTP, 502 Tule Creek Road, Hayfork, CA 96041 WWTP same agency N N 0 1 1 0 Y N Debris-wipes/Non-disposables 0 Upper Lateral 0 0 CCTV to reduce I&I and increased pump station inspections 2025 1SSO11611 1 616 16-MAR-26 Municipal(Public) 2300 1 2 0 1 2 1 0 0 0 0 2 15 64 35 1 0 0 0 100 13 87 0 0 0 0 100 470 470 Lower only 2 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 4 0 0 0 0 0 0 0 0 0 1.5 .5 1A97069RTRI Trinity County Waterworks District #1 Hayfork WWTP, 502 Tule Creek Road, Hayfork, CA 96041 WWTP same agency N 1 1 0 Y N Debris from Lateral Debris-wipes/Non-disposables Pump Station - Controls none we are actively trying to get a planning grant to rehab the pumpstation controls and part of the original collection system in mill camp. 2023 5SSO18099 5S 616 19-MAR-24 Other 3000 0 16 3 2 0 0 1 0 0 1 1 4 75 20 0 0 0 0 0 0 5 0 0 0 0 0 3 3 Upper and Lower 3 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 5SSO18099 California Health Care Facility Stockton CS, 7707 South Austin Road, Stockton, CA 95215 SSS same agency N N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Debris-General N/A Other (specify below) Inmate population flushes garbage down their toilets which compromises our pumping and grinding equiptment but we have not had a major spill. N/A N/A 2025 5SSO18099 5S 616 13-MAR-26 Other 3000 0 18 3 2 0 0 1 0 0 1 1 4 75 20 0 0 0 0 95 0 5 0 0 0 0 5 3 3 Upper and Lower 3 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 5SSO18099 California Health Care Facility Stockton CS, 7707 South Austin Road, Stockton, CA 95215 SSS same agency N N N/A N/A N N/A N/A N N/A N/A N N/A N/A N N/A N/A N/A 0 0 0 N Y Debris-General N/A Other (specify below) Inmate population flushes garbage down their toilets which compromises our pumping and grinding equipment, but we have not had a major spill. N/A N/A 2023 2SSO18096 2 616 06-JAN-26 Other 2 0 0 0 1 0 0 0 0 0 0 The lengths provided below are derived from ArcGIS Pro shape lengths as the actual lengths (per as-builts) are not provided. The forced main is less than .01 miles. 0 4.9 43 19 27 0 0 9 100 1 0 0 0 0 0 0 7 7 Upper and Lower 4.8 0 0 0 0 0 0 0 0 100 100 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2SSO10196 Sonoma Valley County Sanitation District, 22675 8th Street East Sonoma, CA 95476 SSS other agency N 5 0 0 N N Other (specify below) No major spills in 6.5 years and other than a small office, toilet, and sink is only occupied by two security guards. Other (specify below) Sewer flows generated on-site have decreased to nearly zero. All buildings but one small office/toilet/sink on-site are vacant. Some existing buildings had basement sump pumps that discharged into sewer but were disconnected from the sewer system/power. The sewer collection system is old, with the exception of improvements constructed in the 1990s. There is one sewer lift station with a forced main that is less than 0.10 miles in length. The buildings tributary to that lift station are vacant. The lift station only operates is during wet weather. Existing bar screen and venturi meter at SVCSD connection are over 40 years old and are outdated. The property is being sold under special legislation and the buildings and infrastructure to remain or be demolished and replaced is unknown. Per the legislation the county completes a specific plan and processes an existing development application. None. N/A. DGS contracted with Sonoma Valley County Sanitation District to reduce inflow, and infiltration, and retained a contractor to complete a Sewer System Evaluation. 2024 2SSO18096 2 616 24-MAR-26 Other 2 0 0 0 1 0 0 0 0 0 0 The lengths provided below are derived from ArcGIS Pro shape lengths as the actual lengths (per as-builts) are not provided. The forced main is less than 0.10 miles. 0 4.9 43 19 27 0 0 9 100 1 0 0 0 0 0 0 7 7 Upper and Lower 4.8 0 0 0 0 43 0 0 0 100 100 0 0 0 0 1 0 0 0 0 0 1 2 2 2 1 0 0 0 0 0 7 7 4.8 2SSO10196 Sonoma Valley County Sanitation District, 22675 8th Street East Sonoma, CA 95476 SSS other agency N 5 0 0 N N Other (specify below) No major spills in 6.5 years and other than a small office, toilet, and sink is only occupied by two security guards. Other (specify below) Sewer flows generated on-site have decreased to nearly zero. All buildings but one small office/toilet/sink on-site are vacant. Some existing buildings had basement sump pumps that discharged into sewer but were disconnected from the sewer system/power. The sewer collection system is old, with the exception of improvements constructed in the 1990s. There is one sewer lift station with a forced main that is less than 0.10 miles in length. The buildings tributary to that lift station are vacant. The lift station only operates is during wet weather. Existing bar screen and venturi meter at SVCSD connection are over 40 years old and are outdated. The property is being sold under special legislation and the buildings and infrastructure to remain or be demolished and replaced is unknown. Per the legislation the county completes a specific plan and processes an existing development application. None. N/A. DGS contracted with Sonoma Valley County Sanitation District to reduce inflow, and infiltration, and retained a contractor to complete a Sewer System Evaluation. 2025 2SSO18096 2 616 24-MAR-26 Other 2 0 0 0 1 0 0 0 0 0 0 The lengths provided below are derived from ArcGIS Pro shape lengths provided by a civil engineering consultant. The actual lengths (per as-builts) are not provided. A single forced main is less 0.10 miles. 0 4.9 43 19 27 0 0 9 100 1 0 0 0 0 0 0 7 7 Upper and Lower 4.9 0 0 0 0 43 0 0 0 100 100 0 0 0 0 1 0 0 0 0 0 1 2 2 2 1 0 0 0 0 0 0 0 0 2SSO10196 Sonoma Valley County Sanitation District, 22675 8th Street East Sonoma, CA 95476 SSS other agency N 5 0 0 0 N N Other (specify below) No major spills in 6.5 years and other than a small office, toilet, and sink, for onsite security, it is only occupied by two security guards. Other (specify below) Sewer generated on-site has decreased to nearly zero. All buildings but one small office/toilet/sink on-site are closed and vacant. Some existing buildings had basement sump pumps that discharged into sewer but were disconnected from the sewer system/power. The sewer collection system is old, with the exception of improvements constructed in the 1990s. One sewer lift station exists with a forced main less than 0.10 miles in length. The buildings that tributary to that lift station are vacant. The lift station only operates during wet weather. Existing bar screen and venturi meter at SVCSD connection are over 40 years old and outdated. The property is being sold under special legislation and buildings and infrastructure to remain or be demolished and replaced is unknown. Per legislation, the county completes a specific plan, EIR, general plan update, and rezone, the state manages disposition. County is updating Specific Plan and EIR, and processing development application. None. N/A. DGS contracted with Sonoma Valley County Sanitation District to reduce inflow, and infiltration in 2019, and retained a contractor to complete a Sewer System Evaluation in 2021. Contract and Evaluation are uploaded. 2023 4SSO18098 4 616 28-MAR-24 Municipal(Public) 270 0 3 2 3 0 0 0 0 0 0 4 4 10 90 0 0 0 0 100 90 10 0 0 0 0 100 62 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 1 1 1 4SSO01138 LA County Sanitation District 1955 Workman Mill Road Whittier, CA 90601 SSS other agency 4B190107013 Joint Water Pollution Control Plant Carson California WWTP other agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 0 Y Y Natural Disaster (specify below) This System is located in an active landslide area known as the Abalone Cove Landslide District. This area has been active for a long time and continues to have movement continuously. Lower Lateral NA The City of RPV is actively working to mitigate overflows/spills associated with the land movement as well as implement strategies to reduce the rate of land movement in the area. 2024 4SSO18098 4 616 31-MAR-25 Municipal(Public) 810 0 3 2 1 0 0 0 0 0 0 NA 1.2 3 10 90 0 0 0 0 100 90 10 0 0 0 0 100 62 7 Lower only 2.5 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 100 1 1 1 4SSO01138 LA County Sanitation District 1955 Workman Mill Rd, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resource Facility 24501 S. Figueroa St. Carson, CA 90745 WWTP other agency N 0 0 0 Y Y Natural Disaster (specify below) This system is located in an active landslide area known as the Abalone Cove Landslide District. This area has been active for a long time and continues to have movement. Lower Lateral NA The City of RPV is actively working to mitigate overflows/spills associated with land movement as well as implementing strategies to reduce the rate of land movement. Some effort include replacing existing ridged pipe with flexible materials such as HDPE or heavy duty flex able pipe. In addition , the city has installed dewatering wells to reduce ground water that causes slippage. 2025 4SSO18098 4 616 25-MAR-26 Municipal(Public) 800 0 1 1 1 0 0 0 0 0 0 na 4.1 3.6 0 52 0 0 0 0 52 48 0 0 0 0 0 48 62 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 4 7 1 1 4SSO01138 LA County Sanitation District 1955 Workman Mill Rd, Whittier, CA 90601 SSS other agency 4B190107013 A.K. Warren Water Resource Facility 24501 S. Figueroa St. Carson, CA 90745 WWTP other agency N 0 0 0 Y Y Natural Disaster (specify below) Landslide Pump Station - Power NA NA 2023 2SSO18100 2 616 14-MAR-24 School 300 0 1 1 1 0 0 0 0 0 0 0 0 2 88 10 0 0 0 2 100 0 0 0 0 0 0 0 50 50 Upper and Lower 2 0 0 25 33 28 0 8 4 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2SSO10170 Richmond City CS, 2600 Barrett Avenue, Richmond, CA 94804 SSS other agency 2 071037001 Richmond City CS, 2600 Barrett Avenue, Richmond, CA 94804 WWTP other agency N NA 5 1 0 Y Y Other (specify below) NA No spills Other (specify below) NA No spills NA NA 2024 2SSO18100 2 616 31-MAR-25 School 300 0 1 1 1 0 0 0 0 0 0 0 0 2.4 88 10 0 0 0 2 100 0 0 0 0 0 0 0 50 50 Upper and Lower 1.7 0 0 25 33 28 0 8 4 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 .1 0 2 071107001 Richmond WPCP, 601 Canal Blvd, Richmond, CA 94804 WWTP other agency 2SSO10131 Richmond City CS, 2600 Barrett Avenue, Richmond, CA 94804 SSS other agency N 5 1 0 Y Y Other (specify below) NA No Spills Other (specify below) NA No Spills NA NA 2025 2SSO18100 2 616 30-APR-26 School 300 0 1 1 1 0 0 0 0 0 0 0 0 2.4 88 10 0 0 0 2 100 0 0 0 0 0 0 0 50 50 Upper and Lower 1.7 0 0 25 33 28 0 8 4 2 100 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 .1 .1 2 071107001 Richmond WPCP, 601 Canal , Richmond, CA 94804 WWTP other agency 2SSO10170 Richmond City CS, 2600 Barrett Avenue, Richmond, CA 94804 SSS other agency N 5 1 0 Y Y Root Intrusion Gravity Mainline NA NA 2023 2SSO18101 2 616 02-APR-24 School 2700 0 1 1 1 0 0 0 0 0 0 0 0 2 75 15 10 0 0 0 100 0 0 0 0 0 0 0 76 76 Upper and Lower 2 0 58 40 0 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2SSO10088 Albany City CS, 1000 San Pablo Avenue, Albany, CA 94706 SSS other agency 2SSO10131 Ebmud CS, P.O. Box 24055 , Oakland, CA 94623 WWTP other agency N NA 1 0 1 Y Y Other (specify below) Pipe structural problem - failure Upper Lateral NA NA In discussions with EBMUD to conduct smoke testing to evaluate I&I in 2024. 2024 2SSO18101 2 616 31-MAR-25 School 2615 0 1 1 1 0 0 0 0 0 0 0 0 1.7 75 15 10 0 0 0 100 0 0 0 0 0 0 0 76 76 Upper and Lower 1.5 0 58 40 0 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2SSO10088 Albany City CS, 1000 San Pablo Avenue, Albany, CA 94706 SSS other agency 2 019014001 EBMUD, 2020 Wake Avenue, Oakland, CA 94607 WWTP other agency N 1 0 1 Y Y Other (specify below) NA No Spills Other (specify below) NA No Spills NA NA 2025 2SSO18101 2 616 26-MAR-26 School 2615 0 1 1 1 0 0 0 0 0 0 0 0 1.7 75 15 10 0 0 0 100 0 0 0 0 0 0 0 76 76 Upper and Lower 1.5 0 58 40 0 2 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .6 .2 2SSO10088 Albany City CS, 1000 San Pablo Avenue, Albany, CA 94706 SSS other agency 2 019014001 EBMUD, 2020 Wake Avenue, Oakland, CA 94607 WWTP other agency N 1 0 1 Y Y Pipe Structural Problem/Failure - Installation Gravity Mainline NA NA 2023 7SSO18102 7 616 02-APR-24 Park (w/Campground) 64000 0 7 1 0 5 1 1 0 0 1 None 0 3 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 32 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 2 1 7SSO18102 Moabi Regional Park CS, , CA 92393 WWTP same agency N 0 0 0 N Y Other (specify below) unknown Pump Station - Power None None Regular cleaning and CCTV 2024 7SSO18102 7 616 17-DEC-25 Park (w/Campground) 64000 7 7 1 0 5 2 1 0 0 0 None 0 3 0 0 0 0 0 100 100 0 0 0 0 0 0 100 0 32 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 0 2 1 7B360115051 Moabi Regional Park CS, CA 92393 WWTP same agency N None 0 0 0 N Y Other (specify below) Debris in lateral Pump Station - Power None None Regular cleaning and CCTV 2023 6SSO18103 6B 616 02-APR-24 Municipal(Public) 100 0 7 1 0 5 1 1 0 0 1 None 0 2 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 6SSO18103 36600 Ghost Town Road, Yermo, CA 92398 WWTP same agency N None 0 0 0 N Y Debris from Lateral None Other (specify below) Laterals None None 2024 6SSO18103 6B 616 04-DEC-25 Municipal(Public) 100 7 7 1 0 5 2 1 0 0 0 None 0 2 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 6B360105001 36600 Ghost Town Rd, Yermo, CA 92398 WWTP same agency N None 0 0 0 N Y Other (specify below) Debris from lateral Other (specify below) Laterals None None 2023 6SSO18104 6B 616 02-APR-24 Park (w/Campground) 1000 0 7 1 0 5 1 1 0 0 1 None 0 3 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 1 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N None 0 0 0 N Y Debris from Lateral Laterals Other (specify below) Laterals None None 2024 6SSO18104 6B 616 17-APR-25 Park (w/Campground) 1000 1 9 1 0 5 2 1 0 0 0 None 0 2.4 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6B361502002 Recycled Water-VVWRA Administrator, 20111 Shay Road, Victorville, CA 92394 WWTP other agency N N None 0 0 0 N Y Debris from Lateral Laterals Other (specify below) Laterals None Regular cleaning and CCTV 2023 6SSO18105 6B 616 02-APR-24 Park (w/Campground) 100 0 7 1 0 5 1 1 0 0 1 None 0 2 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 9 Upper and Lower 0 0 2 8 80 10 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6SSO18105 Mojave River Forks Regional Park CS, , CA 92393 SSS same agency N None 0 0 0 N Y Debris-General None Other (specify below) Laterals None Regular cleaning and CCTV 2024 6SSO18105 6B 616 17-DEC-25 Park (w/Campground) 100 1 9 1 0 5 2 1 0 0 0 None 0 1.4 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 9 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6SSO18105 Septic hold tank on site SSS same agency N N None 0 0 0 N Y Debris-General None Other (specify below) Laterals None Regular cleaning and CCTV 2023 8SSO18106 8 616 02-APR-24 Park (w/Campground) 100 0 7 1 0 5 1 1 0 0 1 None 0 5 0 0 0 0 0 100 100 0 0 0 0 0 100 100 38 38 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3 1 8SSO10643 Yucaipa Valley Water Dist CS, , Yucaipa, CA SSS other agency N N None 0 0 0 N Y Debris-General None Other (specify below) Laterals None Regular cleaning and CCTV 2024 8SSO18106 8 616 05-DEC-25 Other 0 1 9 1 0 5 2 1 0 0 0 0 4.9 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 Upper and Lower 0 2 8 80 10 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 362222001 Yucaipa Valley Water Dist CS, , Yucaipa, CA SSS other agency N N None 0 0 0 N Y Debris-General None Other (specify below) Laterals None Regular cleaning and CCTV 2023 8SSO18107 8 616 02-APR-24 Park (w/Campground) 4740 0 7 1 0 5 1 1 0 0 1 None 0 1 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 8SSO11146 CSA-70GH (Glen Helen), 18101 Institution Road, San Bernardino, CA 92407-1864 WWTP same agency N None 0 0 0 N Y Debris from Lateral None Other (specify below) Laterals None Regular cleaning and CCTV 2024 8SSO18107 8 616 04-DEC-25 Park (w/Campground) 4740 7 7 1 0 5 2 1 0 0 0 None 0 1 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 8 362899001 Lytle Creek North WWTP, 18100 Institution Road, San Bernardino, CA 92407-1864 WWTP same agency N None 0 0 0 N Y Debris from Lateral None Other (specify below) Lateral None Regular cleaning and CCTV 2023 8SSO18108 8 616 04-DEC-25 Park (w/Campground) 1000 0 7 1 0 5 1 1 0 0 1 None 0 3 0 0 0 0 0 100 100 0 0 0 0 0 100 100 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 100 0 2 1 8 362918001 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 WWTP other agency N None 0 0 0 N Y Debris-General None Other (specify below) Laterals None None 2024 8SSO18108 8 616 03-DEC-25 Park (w/Campground) 1000 1 9 1 0 5 2 1 0 0 0 None 0 2.9 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 Upper and Lower 0 0 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8SSO10580 Inland Empire Utilities Agency CS, 6075 Kimball Avenue, Chino, CA 91710 SSS other agency N N None 0 0 0 N Y Debris-General NONE Other (specify below) Laterals None None 2024 5SSO20063 5F 616 06-AUG-25 Hospital 3100 0 0 1 3 0 1 0 0 0 1 I am the only employee designated to the CSH wastewater plant. I am the Chief Plant operator with a grade 2 certification. I answer to my direct supervisor which is the chief engineer 2. I get help for all kinds of operations here at the WWTP at my request. We have plumbers, maintenance mechanics, engineers, painters, electronic technicians, and carpenters available as needed. 0 3 33 33 33 0 0 0 100 0 0 0 0 0 0 0 0 0 Upper and Lower 3 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO18109 Coalinga State Hospital 24511 W Jayne ave. WWTP same agency 5SSO20063 Coalinga State Hospital 24511 W Jayne ave. WWTP same agency N N - - N - - N - - N - - N - - 0 0 0 N Y Root Intrusion Gravity Mainline None to my knowledge. Daily monitoring of the system. 2024 5SSO20063 5F 616 06-AUG-25 Hospital 3100 0 0 1 3 0 1 0 0 0 1 I am the only employee designated to the CSH wastewater plant. I am the Chief Plant operator with a grade 2 certification. I answer to my direct supervisor which is the chief engineer 2. I get help for all kinds of operations here at the WWTP at my request. We have plumbers, maintenance mechanics, engineers, painters, electronic technicians, and carpenters available as needed. 0 3 33 33 33 0 0 0 100 0 0 0 0 0 0 0 0 0 Upper and Lower 3 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO18109 Coalinga State Hospital 24511 W Jayne ave. WWTP same agency 5SSO20063 Coalinga State Hospital 24511 W Jayne ave. WWTP same agency N 0 0 0 N Y Root Intrusion Gravity Mainline None to my knowledge. Daily monitoring of the system. 2023 2SSO18102 2 616 22-MAR-24 Municipal(Public) 11000 4 5 2 1 4 2 4 1 0 0 CWEA 0 26 53 47 0 0 0 0 100 0 0 0 0 0 0 0 3300 25 Lower only 12 5 0 60 35 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 181 31 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N 0 0 0 Y Y Debris-wipes/Non-disposables Gravity Mainline N/A Higher frequency cleaning schedule 2024 2SSO18102 2 616 22-JUL-25 Municipal(Public) 1100 3 10 1 1 6 5 3 1 0 0 CWEA 0 26 53 47 0 0 0 0 100 0 0 0 0 0 0 0 3300 25 Lower only 12 5 0 60 35 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N 0 0 0 Y Y Debris-wipes/Non-disposables Gravity Mainline N/A Higher frequency cleaning schedule 2025 2SSO18102 2 616 02-APR-26 Municipal(Public) 11000 0 10 1 1 4 5 3 1 0 0 CWEA 0 26 53 47 0 0 0 0 100 0 0 0 0 0 0 0 3300 25 Lower only 12 5 0 60 35 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 181 31 2SSO10105 Central Contra Costa Sd CS, 5019 Imhoff Place, Martinez, CA 94553 WWTP other agency N 0 0 0 Y Y Debris-wipes/Non-disposables Gravity Mainline n/A Higher frequency cleaning schedule 2023 2SSO18110 2 616 02-APR-25 Municipal(Public) 2325 0 44 4 2 0 2 1 2 0 0 3 11 32 32 19 1 0 16 100 36 8 54 0 0 2 100 222 222 Upper and Lower 3 11 9 0 0 0 79 0 1 0 100 0 0 0 0 0 24 0 0 1 25 0 0 0 0 0 0 0 0 0 0 0 1 1 386013001 Discharge Point 001, , San Francisco, CA WWTP other agency N 0 0 0 Y Y Other (specify below) There are three overflow reports associated with the reporting period and no discernable trend regarding spill cause. Gravity Mainline NA Treasure Island is undergoing extensive redevelopment, including full replacement of the sewer collection system. 2024 2SSO18110 2 616 06-JAN-26 Municipal(Public) 2050 0 55 4 2 0 0 2 2 0 0 3.4 9.3 28 33 21 1 0 17 100 36 9 53 0 0 2 100 222 224 Upper and Lower 2.5 13 10 0 0 0 76 0 1 0 100 0 0 0 0 0 24 0 0 1 25 0 0 0 0 0 0 0 0 0 0 0 .1 .1 2 386013001 Discharge Point 001, , San Francisco, CA SSS same agency N 0 0 0 Y Y Pump Station Failure - Power Pump Station - Power None Treasure Island is undergoing extensive redevelopment, including full replacement of the sewer collection system. 2025 2SSO18110 2 616 01-MAY-26 Municipal(Public) 1971 0 45 4 2 0 2 2 1 0 0 1.8 7.7 25 22 9 1 0 15 73 15 7 49 0 0 2 73 280 280 Upper and Lower 2.9 2 0 0 0 0 70 0 1 0 73 0 0 0 0 0 24 0 0 1 25 0 0 0 0 0 0 0 0 0 0 0 .1 0 2386013001 Treasure Island Wastewater Treatment Plant 1220 Ave M San Francisco, CA 94130 WWTP same agency N 0 1 0 Y Y Pump Station Failure - Controls Pump Station - Controls none R&R 2023 3SSO18100 3 616 08-JUL-25 Municipal(Public) 16174 3 6 3 1 2 1 0 0 0 0 NA 5 45 4 83 13 0 0 0 100 31 9 60 0 0 0 100 4100 0 None 0 0 100 0 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 100 0 19 0 0 0 0 0 0 0 100 0 0 0 3 400421864 Los Osos Water Recycling Facility, 2300 Los Osos Valley Road, Los Osos, CA 93402-3412 WWTP same agency N NA 0 0 0 N Y Other (specify below) No major spills. Other (specify below) Flushable wipes cause increased maintenance at lift stations. NA NA 2024 3SSO18100 3 616 08-JUL-25 Municipal(Public) 15731 4 6 2 1 2 1 0 0 0 0 5 45 4 83 13 0 0 0 100 31 9 60 0 0 0 100 4100 0 None 0 0 100 0 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 19 0 0 0 0 0 0 0 19 0 0 0 3 400421864 Los Osos Water Recycling Facility, 2300 Los Osos Valley Road, Los Osos, CA 93402-3412 WWTP same agency N NA 0 0 0 N Y Other (specify below) No major spills. Other (specify below) Flushable wipes cause increased maintenance at lift stations NA NA 2025 3SSO18100 3 616 24-FEB-26 Municipal(Public) 15731 0 4 2 1 1 1 4 2 0 0 5 45 4 83 13 0 0 0 100 31 9 60 0 0 0 100 4100 0 None 0 0 100 0 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 2 0 19 0 0 0 0 0 0 0 19 0 0 0 3 400421864 Los Osos Water Recycling Facility, 2300 Los Osos Valley Road, Los Osos, CA 93402-3412 WWTP same agency N NA 0 0 0 N Y Other (specify below) No major spills Other (specify below) Flushable wipes caused an increase in maintenance at our life stations. NA NA 2023 5SSO18100 5S 616 02-APR-24 Port 0 0 5 1 2 0 0 0 0 0 0 None. 0 18 33 38 22 0 0 7 100 0 0 0 0 0 0 0 150 150 Upper and Lower 3 0 0 0 0 0 0 0 0 100 100 1 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 0 1 5B390107001 Stockton Regional Wastewater Control Facility, 2100 Navy Drive, Stockton, CA WWTP other agency N Not Applicable. 0 0 0 Y Y Other (specify below) None. Other (specify below) None. Zero. Ongoing system upgrades. 2024 5SSO18100 5S 616 31-MAR-25 Port 0 0 5 1 2 0 0 0 0 0 0 None. 0 18 33 38 22 0 0 7 100 0 0 0 0 0 0 0 150 150 Upper and Lower 3 0 0 0 0 0 0 0 0 100 100 1 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 0 1 5B390107001 Stockton Regional Wastewater Control Facility 2100 Navy Drive, Stockton CA 95206 WWTP other agency N Not Applicable. 0 0 0 Y Y Other (specify below) None. Other (specify below) None. Zero. Ongoing system upgrades. 2025 5SSO18100 5S 616 23-MAR-26 Port 0 0 4 1 2 0 0 0 0 0 0 None .9 18 33 22 0 0 0 7 100 0 0 0 0 0 0 0 150 150 Upper and Lower 3 0 0 0 0 0 0 0 0 100 100 1 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 0 1 5B390107001 001, , Stockton, CA WWTP other agency N Not applicable 0 0 0 Y Y Other (specify below) None Other (specify below) None Zero Ongoing system updates 2023 1SSO10100 1 616 29-MAR-24 Municipal(Public) 520 0 0 1 1 0 0 0 0 0 1 N/A 3 5 83 17 0 0 0 0 100 100 0 0 0 0 0 100 210 0 None 4 0 0 100 0 0 0 0 0 0 100 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 3 3 1B15019WNHU Foster Avenue Extension & Rail with Trail Phase 1 Project, Foster Avenue, Arcata, CA 95521 WWTP other agency N N/A 0 2 0 N Y Debris-wipes/Non-disposables N/A Manhole N/A None Routine maintenance 2023 8SSO18109 8 616 02-APR-24 Municipal(Public) 75236 0 4 1 2 4 3 0 1 0 0 N/A 0 171 1 91 6 2 0 0 100 0 0 0 0 0 0 0 18000 0 None 0 1 3 4 58 0 0 0 0 34 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 205 31 8SSO10640 Orange Cnty Sanitation Dist CS, , CA WWTP same agency 8SSO10587 Michelson WRP CS, PO Box 57000 , Irvine, CA 92619 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 10 N Y Fats, Oil and Grease (FOG) An FSE in our system experienced a private spill resulting in the release of an estimated 4,162 gallons at the grease interceptor which went unreported for two business days. The FSE was cited by the City and was also invoiced by our agency for the cleanup. Our agency contracts with an outside consultant to perform FSE inspections. In cases like this the consultant performs follow up visits to ensure maintenance is being performed at appropriate intervals. Our only other spill was caused by pump failure at a private lift station which is owned by an HOA. Other (specify below) Other than the private spill, our agency had one small spill (45 gallons) at a manhole upstream of a private lift station. The lift station had a pump failure which caused the wet well to fill higher than normal. The EOCWD manhole was at a lower elevation than the wet well and consequently spilled at the manhole first. Our agency is currently in negotiations with the HOA to take over the private lift station this year (2024). There are several maintenance improvements that will be performed prior to the ownership change. This will include recoating and telemetry upgrades. None to report. As previously stated, we are in negotiations with the HOA to take over the private lift station this year (2024). 2024 8SSO18109 8 616 31-MAR-25 Municipal(Public) 75236 0 2 1 2 1 1 1 1 0 0 .1 171 1 91 6 2 0 0 100 0 0 0 0 0 0 0 18000 0 None 0 1 3 4 58 0 0 0 0 34 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 186.2 18.6 8SSO10640 Orange County Sanitation Dist. CS, CA WWTP same agency 8SSO10587 Michelson WRP CS, PO Box 57000, Irvine CA 92619 WWTP same agency N N NA NA N NA NA N NA NA N NA NA N NA NA NA 0 0 10 Y Y Debris from Construction Mortar material became lodged inside manhole blocking flow. Manhole Mortar material caused blockage inside manhole. Performed CCTV inspections looking for source of mortar. None found. Continue CCTV inspections. 2025 8SSO18109 8 616 24-MAR-26 Municipal(Public) 75500 0 2 1 2 1 1 1 1 0 0 .1 172.8 1 91 6 2 0 0 100 100 0 0 0 0 0 100 15100 0 None 0 1 3 6 86 1 0 0 0 3 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 162 36.1 8SSO10640 Orange Cnty Sanitation Dist CS WWTP other agency 8SSO10587 Michelson WRP CS, PO Box 57000 WWTP other agency N 0 0 9 Y Y Damage by Others Not Related to Collection System Construction/Maintenance Our only spill was caused by a contractor installing a permitted sewer lateral connection. During construction, an unmarked watermain was hit which flooded the excavation and inundated the wet well at a downstream lift station. This resulted in a category 4 spill. Pump Station - Mechanical The lift station was inundated by water from a potable mainline hit. This resulted in a category 4 spill. None to report. Installed sectional liner (1), top hat (1), manhole rehab (2), and manhole structure replacement (1). The district is also in the process of updating its master plan and has performed diameter over depth analysis to identify potentially undersized sewer mains for future replacement. 2023 9SSO11546 9 616 23-JAN-24 Municipal(Public) 43628 1 5 2 1 0 1 0 2 0 1 N/A 1 17 0 8 42 35 15 0 100 0 68 32 0 0 0 100 0 0 None 0 0 29 71 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4 3 9SSO11546 Santa Rosa Regional Resources Authority Collection System, , Murrieta, CA 92562 WWTP same agency Y N Western Municipal Water District N/A N Elsinore Valley Municipal Water District N/A N/A 1 0 0 Y Y Other (specify below) No Spills encountered in 2023 Other (specify below) No system infrastructure failures in 2023 No Spills encountered in 2023 No system deficiencies in 2023 2024 9SSO11546 9 616 30-JAN-25 Municipal(Public) 43628 1 5 2 1 0 2 0 2 0 1 N/A 1 17 0 8 42 35 15 0 100 0 68 32 0 0 0 100 0 0 None 0 0 29 71 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4 3 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP same agency Y N Western Municipal Water District N/A N Elsinore Valley Municipal Water District N/A N/A 1 0 0 Y Y Other (specify below) No spills encountered in 2024 Other (specify below) No system infrastructure failures in 2024 No Spills encountered in 2024 No system deficiencies in 2024 2025 9SSO11546 9 616 10-FEB-26 Municipal(Public) 43628 0 6 2 1 0 2 0 2 0 1 N/A 0 17 0 8 42 35 15 0 100 0 68 32 0 0 0 100 0 0 None 0 0 29 71 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4 11 9 000000564 Santa Rosa WRF-Recycled WTR, 26266 Washington , Murrieta, CA 92589 WWTP same agency Y N Western Municipal Water District N/A N Elsinore Valley Municipal Water District N/A N N/A N/A N N/A N/A N N/A N/A N/A 4 1 0 Y Y Other (specify below) No sanitary sewer overflows occurred during the reporting year. Other (specify below) No system infrastructure failure points were identified, as no sanitary sewer overflows occurred in 2025. No sanitary sewer overflows occurred during the reporting year. No sanitary sewer overflows occurred during the reporting year. 2023 2SSO18112 2 616 05-APR-24 Municipal(Public) 500 2 3 2 1 1 4 2 0 0 1 Operation and Maintenance of Wastewater Collection Systems through the Office of Water Programs. 1 5 28 57 0 0 0 15 100 0 100 0 0 0 0 100 190 0 None 0 0 10 85 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2SSO10167 Pleasanton City CS, 3333 Busch Road, Pleasanton, CA 94566 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 N Y Other (specify below) none Other (specify below) none none none 2024 2SSO18112 2 616 13-MAR-26 Municipal(Public) 500 2 3 2 1 1 4 2 0 0 1 Operation and Maintenance of Wastewater Collection System through the Office of Water Programs 1 5 28 57 0 0 0 15 100 0 100 0 0 0 0 100 190 0 None 0 0 10 85 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2SSO1067 Pleasanton City CS, 3333 Busch Road, Pleasanton, CA 94566 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 N Y Other (specify below) None Other (specify below) None None None 2025 2SSO18112 2 616 13-MAR-26 Municipal(Public) 500 2 3 2 1 1 4 2 0 0 1 Operation and Maintenance of Wastewater Collection System through the Office of Water Programs 1 5 28 57 0 0 0 15 100 0 100 0 0 0 0 100 190 0 None 0 0 10 85 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2SSO1067 Pleasanton City CS, 3333 Busch Road, Pleasanton, CA 94566 SSS other agency N N n/a n/a N n/a n/a N n/a n/a N n/a n/a N n/a n/a n/a 0 1 0 N Y Other (specify below) None Other (specify below) None None None 2025 5SSO20058 5F 616 12-MAR-26 Municipal(Public) 413 0 2 1 1 0 0 2 0 0 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 3.8 1.1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 63 63 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N NA 1 1 0 Y Y Other (specify below) No spills Other (specify below) no failure points No ongoing investigations COunty taken on as Administrators, currently working on grant 2025 5SSO20058 5F 616 19-DEC-25 Municipal(Public) 413 0 2 1 1 0 0 2 0 0 0 Certified Wastewater Treatment Plant operators through the State Water Resources Control Board 3.8 1.1 100 0 0 0 0 0 100 100 0 0 0 0 0 100 63 63 Lower only 1 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 5D540132001 Cutler-Orosi WWTF, 40401 Road 120 , Cutler, CA 93615 WWTP other agency N N/A 1 1 0 Y N Pump Station Failure - Mechanical No major spill reported Pump Station - Mechanical no failure points No ongoing investigations County taken on as Administrators, planning for future grant. 2023 7SSO18114 7 616 22-MAR-24 Municipal(Public) 10000 0 6 3 1 4 0 0 1 0 0 All CWEA 2 78 0 85 10 5 0 0 100 100 0 0 0 0 0 100 4138 4 None 0 0 100 0 0 0 0 0 0 0 100 0 2 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 7A360122001 Hi-Desert WD Reclamation Facility, 59000 Sunnyslope Drive, Yucca Valley, CA 92284 WWTP same agency N 0 0 0 N Y Collection System Maintenance Failure (specify below) No spills question is Not Applicable Gravity Mainline No issues, question is Not Applicable No applicable No applicable 2025 2SSO10193-C 2 616 02-APR-26 Municipal(Public) 830971 0 45 4 2 0 2 2 1 0 0 12.1 946 1 16 54 10 18 1 100 14 8 30 17 31 0 100 150595 150310 None 0 7 19 9 10 11 17 19 8 0 100 0 3 8 3 3 0 0 0 5 22 0 0 2 0 0 1 0 0 0 3 0 70.4 84 2 386010001 Southeast Water Pollution Control Plant San Francisco Public Utilities Commission / Wastewater Enterprise 750 Phelps Street San Francisco, CA 94124 WWTP same agency Y N North San Mateo County Sanitation District Wastewater Treatment Plant and its collection system 2 417021001 N Bayshore Sanitary District 2SSO10093 N City of Brisbane, Guadalupe Valley Municipal Improvement District 2SSO10097 0 1 0 Y Y Surcharged Pipe (Combined Collection System Only) Gravity Mainline No Preventative maintenance, sewer inspection, rehabilitation, replacement, capital projects 2023 4SSO18115 4 616 29-MAR-24 Municipal(Public) 329 7 32 4 2 0 0 0 0 0 0 N/A 1 1 0 0 71 29 0 0 100 0 0 100 0 0 0 100 0 0 None 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Unincorporated North West Co. Area CS 4SSO11374 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2024 4SSO18115 4 616 01-APR-25 Municipal(Public) 3191 5 31 5 2 0 1 2 0 0 8 N/A 1.4 1 0 0 71 29 0 0 100 0 0 100 0 0 0 100 0 0 None 0 0 100 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Unincorporated North West Co. Area CS 4SSO11374 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2025 4SSO18115 4 616 01-APR-26 Municipal(Public) 4658 9 31 5 2 0 0 1 1 0 6 N/A 1.4 1 0 0 71 29 0 0 100 0 0 100 0 0 0 100 0 0 None 0 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 4A190107023 Valencia Water Reclamation Plant, 28185 The Old Road, Valencia, CA 91355 WWTP same agency Y N Unincorporated North West Co. Area CS 4SSO11374 N/A 0 0 0 Y Y Other (specify below) N/A Other (specify below) N/A N/A N/A 2023 9SSO18116 9 616 14-MAR-24 Municipal(Public) 1850 0 0 0 0 0 0 0 0 0 0 NA 1 8 0 99 1 0 0 0 100 100 0 0 0 0 0 100 571 0 None 0 0 100 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 9000002490 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline Smart covers installed on six (6) manholes throughout the system. The district has six (6) Smart Covers located on manholes throughout the collection system and monitor them on a continual basis. 2024 9SSO18116 9 616 21-JUL-25 Municipal(Public) 1850 0 0 0 0 0 0 0 0 0 0 NA 1 8 0 100 0 0 0 0 100 100 0 0 0 0 0 100 571 0 None 0 0 100 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0000002490 Harmony Grove Water Reclamation Plant, 2540 Country Club Drive, Escondido, CA 92029 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline Smart covers installed and monitored on six (6) manholes throughout the system. The district has six (6) smart covers located on manholes throughout the collection system and monitor them on a continual basis. 2025 9SSO18116 9 616 19-MAR-26 Municipal(Public) 1850 0 0 0 0 0 0 0 0 0 0 NA 1 8 0 100 0 0 0 0 100 100 0 0 0 0 0 100 745 0 None 0 25 75 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9SSO18116 WWTP same agency N 0 0 0 Y Y Debris-General Gravity Mainline Smart covers installed and monitored on six (6) manholes throughout the system. Manhole inspections performed in February 2026. 2023 5SSO18117 5F 616 18-MAR-24 Municipal(Public) 2500 0 2 1 1 1 0 0 1 0 0 NA 0 25 2 88 6 4 0 0 100 0 0 0 0 0 0 0 1336 0 Lower only 9 51 49 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 5B20NC00105 Tesoro Viejo Wastewater Treatment Plant, NW Corner Avenue 14 and Espienada , Madera, CA 93636 WWTP same agency N NA 0 0 1 Y Y Other (specify below) There were no spills Other (specify below) There were no infrastructure failures None None needed 2024 5SSO18117 5F 616 03-NOV-25 Municipal(Public) 2500 0 2 1 1 1 0 0 1 0 0 NA 0 25 2 88 6 4 0 0 100 0 0 0 0 0 0 0 1336 0 Lower only 9 51 49 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 5B20NC00105 Tesoro Viejo WWTP, NW Corner Avenue 14 and Espienada , Madera, CA 93636 WWTP same agency N NA 0 0 1 Y Y Other (specify below) There were no spills Other (specify below) There were no infrastructure Failures None None Needed 2025 5SSO18117 5F 616 27-MAR-26 Municipal(Public) 3500 0 2 1 1 1 0 0 1 0 0 .3 19 6 84 7 3 0 0 100 100 0 0 0 0 0 100 2091 0 Lower only 12 60 40 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 10.4 5 5B20NC00105 Tesoro Viejo WWTP, NW Corner Avenue 14 and Espienada , Madera, CA 93636 WWTP same agency N 0 0 1 Y Other (specify below) None Other (specify below) None None None 2024 3SSO20045 3 616 06-NOV-25 Municipal(Public) 159 0 1 1 1 0 1 0 0 0 0 0 2.8 2.8 48 52 0 0 0 0 100 100 0 0 0 0 0 100 281 281 None 1 100 0 0 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .3 0 2.8 3 350100001 2690 San Juan Hollister, CA WWTP other agency N 0 1 0 N Y Other (specify below) No major spills Other (specify below) No failures Not applicable Not applicable 2024 3SSO20045 3 616 28-MAR-24 Other 0 0 1 1 1 0 0 0 0 0 0 0 3 3 48 52 0 0 0 0 100 100 0 0 0 0 0 100 281 281 None 1 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 3 3350100001 City of Hollister WWTP other agency N 0 0 0 0 0 0 0 0 0 0 N/A 0 1 0 N Y Other (specify below) N/A - no major spills and no failures Other (specify below) N/A - no major spills and no failures N/A N/A 2025 3SSO20045 3 616 04-FEB-26 Municipal(Public) 159 0 2 1 1 0 1 0 0 0 0 0 2.8 2.8 48 52 0 0 0 0 100 100 0 0 0 0 0 100 281 281 None 1 100 0 0 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 .3 0 0 3 350100001 305.50 San Benito River HA, , CA WWTP other agency N 0 1 0 Y Y Other (specify below) No major spills Other (specify below) No failures Not applicable Not applicable 2024 3SSO20048 3 616 01-APR-26 Municipal(Public) 993 2 5 1 1 0 1 0 0 0 0 Certification through The Wastewater Operator Certification Program at the State Water Resources Control Board: OIT: 2 Grade I: 3 Grade II: 2 Grade III: 2 .9 4.7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 301 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 .5 3.5 3.1 3 271018001 California American Water Carmel Valley Ranch WWTP, 1 Old Ranch Road, Carmel CA 93923 WWTP same agency N N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable Not applicable 0 0 0 Y Y Root Intrusion Not applicable Manhole Not applicable Not applicable Not applicable 2024 3SSO20048 3 616 01-APR-26 Municipal(Public) 993 2 5 1 1 0 1 0 0 0 0 Certification through The Wastewater Operator Certification Program at the State Water Resources Control Board: OIT: 2 Grade I: 3 Grade II: 2 Grade III: 2 .9 4.7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 301 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 .5 3.5 3.1 3 271018001 California American Water Carmel Valley Ranch WWTP, 1 Old Ranch Road, Carmel CA 93923 WWTP same agency N N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable Not applicable 0 0 0 Y Y Root Intrusion Not applicable Manhole Not applicable Not applicable Not applicable 2025 3SSO20048 3 616 01-APR-26 Municipal(Public) 1000 3 4 1 1 0 1 0 0 0 0 Certification through The Wastewater Operator Certification Program at the State Water Resources Control Board: OIT: 3 Grade I: 3 Grade II: 1 Grade III: 2 .9 4.7 100 0 0 0 0 0 100 100 0 0 0 0 0 100 303 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 .5 3.7 4.3 3 271018001 California American Water Carmel Valley Ranch WWTP, 1 Old Ranch Road, Carmel CA 93923 WWTP same agency N N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable N Not applicable Not applicable Not applicable 0 0 0 Y Y Root Intrusion Not applicable Manhole Not applicable Not applicable Not applicable 2024 5SSO20047 5S 616 31-MAR-25 Municipal(Public) 130 8 22 4 2 11 7 4 0 0 1 One IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor license, one PLC programming and application certificate, and numerous water distribution and treatment certificates. 0 1 70 20 10 0 0 0 100 0 0 0 0 0 0 100 0 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5A310106001 City of Roseville, 2005 Hilltop Circle, Roseville CA 95747 WWTP other agency N N/A 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2024. Other (specify below) N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. N/A. No Major Spills in 2024. 2024 5SSO20047 5S 616 03-APR-24 Municipal(Public) 0 6 17 3 2 12 5 5 0 0 1 One IBEW Electrical Training Card, one SWRCB Grade 3 WWTP Operator, two C-10 Electrical Contractors License, one PLC Programming and Application Certificate, and numerous SWRCB Water Distribution and Treatment Certificates. Note: All staff are available to respond to all eight Sewer Districts and CSAs with WDIDs. We formerly divided staff by the percentage of population served in the eight Districts and CSAs resulting in very low numbers for smaller Districts and CSAs and now reporting all staff in all Districts and CSAs resulting in significant increases. 0 1 70 20 10 0 0 0 100 0 0 0 0 0 0 0 0 0 None 0 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO10935 City of Roseville, 2005 Hilltop Circle, Roseville, CA 95747 WWTP same agency N N/A 0 0 0 Y Y Other (specify below) N/A. New District with no connections to date spills in 2023. Other (specify below) N/A. New District with no connections to date spills in 2023. N/A. New District with no connections to date spills in 2023. N/A. New District with no connections to date spills in 2023. 2025 5SSO20047 5S 616 26-MAR-26 Municipal(Public) 561 8 22 4 2 27 7 5 0 0 1 one IBEW electrical training card, one SWRCB grade 3 WWTP operator, 2 C-10 electrical contractor licenses, one PLC programming and application certificate, numerous water distribution and treatment certificates 0 6 70 20 10 0 0 0 100 0 0 0 0 0 0 0 374 0 None 0 100 0 0 0 0 0 0 0 0 100 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5SSO10935 City of Roseville, 2005 Hilltop Circle, Roseville, CA 95747 WWTP other agency N 0 0 0 Y Y Other (specify below) N/A. No Major Spills in 2025. Other (specify below) N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. N/A. No Major Spills in 2025. 2024 9SSO20059 9 616 31-MAR-25 Other 0 9 23 4 3 12 12 4 4 0 8 As a member agency of the East County AWP JPA, Padre Dam Municipal Water District (9SSO10680) serves as the Administrator and Operator for the JPA. As such, the employees listed in Sections 3 and 4 are Padre Dam Municipal Water District employees serving to operate, maintain, and provide similar services to the JPA for its infrastructure through an Administrative and Operating Services Agreement between the JPA and Padre Dam. Only Collections Certifications are accounted for in 4.f. 0 .1 0 0 0 0 100 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 .1 .1 9SSO10658 City of San Diego Point Loma Wastewater Treatment Plant SSS other agency Y N County of San Diego 9SSO10662 N Padre Dam Municipal Water District 9SSO10680 N City of El Cajon 9SSO10649 N/A 0 0 0 Y Y Other (specify below) N/A, No spills Other (specify below) N/A, No failures N/A, No ongoing investigations The East County AWP JPA is a new agency and enrollee with very few sewer assets at this time, that were recently acquired from the City of San Diego. While the JPA has been an enrollee since July 1, 2024 and has no history of spills, the JPA has already taken steps to inspect, clean, and rehabilitate the pre-existing infrastructure that it has acquired, now that it is owned by the JPA. The East County AWP project, including transfer of sewer assets from JPA partner agencies, is currently under construction. Improvements to the sewer conveyance system are anticipated to be completed in 2026. The JPA will include these future facilities, acquisitions, and actions to address deficiencies in its annual reporting after it completes the construction of its new sewer assets and assumes ownership of other pre-existing sewer assets. 2024 9SSO20059 9 616 30-AUG-24 Other 0 17 26 7 4 11 14 4 6 0 7 As a member agency of the East County AWP JPA, Padre Dam Municipal Water District (9SSO10680) serves as the Administrator and Operator for the JPA. As such, the employees listed in Sections 3 and 4 are Padre Dam Municipal Water District employees serving to operate, maintain, and provide similar services to the JPA for its infrastructure through an Administrative and Operating Services Agreement between the JPA and Padre Dam. 0 .1 0 0 0 0 100 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 .1 .1 9SSO10658 City of San Diego Point Loma Wastewater Treatment Plant SSS other agency Y N County of San Diego 9SSO10662 N Padre Dam Municipal Water District 9SSO10680 N City of El Cajon 9SSO10649 N/A 0 0 0 N N Other (specify below) N/A (new enrollee, no spills) Other (specify below) N/A (new enrollee, no failures) N/A (new enrollee, no spills) The East County AWP JPA is a new agency and enrollee with very few sewer assets at this time, that were recently acquired from the City of San Diego. While the JPA is a new agency and has no history of spills, the JPA is already taking steps to inspect, clean, and rehabilitate the pre-existing infrastructure that it has acquired, now that it is owned by the JPA. The East County AWP project, including transfer of sewer assets from JPA partner agencies, is currently under construction. Improvements to the sewer conveyance system are anticipated to be completed in 2026. The JPA will include these future facilities, acquisitions, and actions to address deficiencies in its annual reporting after it assumes ownership. 2025 9SSO20059 9 616 31-MAR-26 Other 0 9 21 4 3 18 13 3 4 0 6 As a member agency of the East County AWP JPA, Padre Dam Municipal Water District (9SSO10680) serves as the contracted Administrator and Operator for the JPA. As such, the employees listed in Sections 3 and 4 are Padre Dam Municipal Water District employees serving to operate, maintain, and provide similar services to the JPA for its infrastructure through an Administrative and Operating Services Agreement between the JPA and Padre Dam. Only Collections Certifications accounted for in 4.f. 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 0 0 None 0 0 0 100 0 0 0 0 0 0 100 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 9SSO10658 City of San Diego Point Loma Wastewater Treatment Plant SSS other agency Y N County of San Diego 9SSO10662 N Padre Dam Municipal Water District 9SSO10680 N City of El Cajon 9SSO10649 N/A 0 0 0 Y Y Other (specify below) N/A, no spills in 2025 reporting period Other (specify below) N/A, no failures N/A, no ongoing investigations The East County AWP JPA is a new agency and enrollee with very few sewer assets at this time, that were acquired from the City of San Diego in 2023. The East County AWP project, including transfer of sewer assets from JPA partner agencies, is currently under construction. Improvements to the sewer conveyance system are anticipated to be completed in 2026. The JPA will include these future facilities, acquisitions, and actions to address deficiencies in its annual reporting after it completes the construction of its new sewer assets and assumes ownership and maintenance of other pre-existing sewer assets. 2025 7SSO20067 8 616 03-FEB-26 Municipal(Public) 3749 3 4 2 0 4 4 0 0 0 8 N/A 2 10 81 18 1 0 0 0 100 0 0 100 0 0 0 100 1357 0 None 8 25 75 0 0 0 0 0 0 0 100 0 100 0 0 0 0 0 0 0 100 100 0 0 0 0 0 0 0 0 100 0 0 0 7A330104002 Nancy Wright Regional Water Reclamation Facility, 19011 Little Morongo Road, Desert Hot Springs, CA 92240 WWTP same agency N N/A 0 0 1 Y Y Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure Air Relief Valve (ARV)/ Blow-Off Valve (BOV) No ongoing spill investigations at this time. Routine scheduled monthly air vac inspections / maintenance to ensure proper operation of the air vacs to prevent debris from getting ragged in them. 2025 7SSO20067 8 616 02-MAY-25 Municipal(Public) 3729 2 4 1 0 3 4 0 0 0 7 N/A 2 10 81 18 1 0 0 0 100 0 0 100 0 0 0 100 1162 0 None 7 25 75 0 0 0 0 0 0 0 100 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 7A330104002 Nancy Wright Regional Water Reclamation Facility, 19011 Little Morongo Road, Desert Hot Springs, CA 92240 WWTP same agency N N/A 0 0 1 Y Y Other (specify below) No major spill causes Other (specify below) No force main or lift station failures No ongoing spill invstigation CCTV mainline sewer system to identify any system deficiencies 2025 5SSO20075 5F 616 16-APR-26 Municipal(Public) 9000 5 7 2 3 0 0 0 1 1 0 n/a 0 50 18 72 9 1 0 0 100 0 0 0 0 0 0 0 0 0 None 0 90 10 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 10 5B10NC00072 Root Creek Water District WWTF 10772 Road 40, Madera, CA 93638 WWTP same agency N n/a 2 0 0 N Y Other (specify below) No spills have occurred Other (specify below) No spills have occurred None A System Performance Evaluation will take place in future years. The SSMP was completed and uploaded in 2026. Steps are being taken to complete plans to implement the SSMP. 2025 8SSO20076 8 616 28-APR-26 School 6500 0 0 0 0 0 0 0 0 0 0 1.6 1.6 25 75 0 0 0 0 0 0 0 0 0 0 0 0 54 54 Upper and Lower .6 10 30 25 35 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8360111001 1950 Nevada Street, Redlands, CA 92373 WWTP other agency N None 0 0 0 N Y Root Intrusion None Gravity Mainline Service Laterals Manholes Cleanouts Root intrusion None Actions detailed in Emergency Response Plan 2025 3SSO20080 3 616 24-NOV-25 Park (Day Use) 2751 7 3 1 1 0 0 0 0 0 0 2.2 .2 10 0 0 0 0 0 10 90 0 0 0 0 0 90 14 14 Upper and Lower .2 0 90 0 0 0 0 0 0 0 90 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 2 0 .1 3 270101001 26900 Highway 1, Carmel CA 93922 WWTP other agency Y Y Point Lobos State Natural Reserve 3SSO20080 N/A 0 1 5 N N Pipe Structural Problem/Failure - Installation N/A Force Main N/A No spills are currently being investigated. Staff will inspect and maintain lift stations to State Water Boards standards, report spills and get relevant training to ensure the Sanitary Sewer System is running properly. Getting staff trained formally will also help with proper response procedures when a failure does occur. 2026 3SSO20088 3 616 17-JUN-26 Municipal(Public) 512 0 15 0 2 4 4 0 3 0 0 0 2 0 100 0 0 0 0 100 0 0 0 0 0 0 100 154 0 None 0 35 0 65 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.3 3 350100001 Hollister Domestic WWTP, 2690 San Juan Road, Hollister, CA 95023 WWTP other agency N 0 0 0 N Y Pipe Structural Problem/Failure - Controls Pipe material failure prior to reaching the end of the life calculated value. Gravity Mainline None No deficiencies noted 2026 2SSO20089 2 616 29-MAY-26 Park (w/Campground) 500 0 5 1 1 0 0 0 0 0 0 NA 0 1.3 100 0 0 0 0 0 100 0 0 0 0 0 0 0 68 68 Upper and Lower 1.3 100 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2SSO10209 Union S.D. CS, 5072 Benson Road, Union City, CA 94587 SSS other agency N NA 0 0 0 N Y Other (specify below) no reportable sso's on this system Other (specify below) no known failure points NA NA