| |
DECISION ID |
4240 |
| |
| Pollutant: |
Ammonia |
| Final Listing Decision: |
Delist from 303(d) list (being addressed by USEPA approved TMDL) |
| Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL)(2006) |
| Revision Status |
Revised |
| Reason for Delisting: |
State determines water quality standard is being met |
| TMDL Name: |
Los Angeles River Nitrogen |
| TMDL Project Code: |
229 |
| Date TMDL Approved by USEPA: |
03/18/2004 |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
This pollutant is being considered for removal from the section 303(d) list under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for removing this water segment-pollutant combination from the section 303(d) list.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Two of 111 samples exceeded the Basin Plan acute criteria for freshwater aquatic life protection and this does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| |
| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the section 303(d) list because applicable water quality standards for the pollutant are not being exceeded. |
| |
| SWRCB Board Decision / Staff Recommendation: |
|
| |
| USEPA Decision: |
|
| |
| |
| |
| LOE ID: |
2550 |
| |
| Pollutant: |
Ammonia |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
33 |
| Number of Exceedances: |
2 |
| |
| Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
| Data Used to Assess Water Quality: |
Two out of 33 samples exceeded Basin Plan Water Quality objectives for ammonia-N, revised in 2002 (City of Burbank, 2006). |
| Data Reference: |
Placeholder reference 2006 303(d) |
| |
| Water Quality Objective/Criterion: |
One hour average Basin Plan Water Quality Objectives for ammonia-N was revised in 2002. For freshwaters not designated cold freshwater habitat and/or fish migration, the ammonia WQO is dependent on pH and fish species, but not temperature. The 30-day average WQO for waters not designated for spawning are dependent on pH and temperature. These WQO's have been adopted into the Basin Plan and are linked and applicable to protection of aquatic life beneficial uses. |
| Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
Samples were collected at three sites: R1-at the confluence of the Burbank Western Channel and Lockheed Channel about 50 feet above the Burbank Water Reclamation Plant, R2- Burbank Western Wash at Verdugo Avenue, and R5- Burbank Western Wash just upstream from the confluence with the Los Angeles River. |
| Temporal Representation: |
Three samples were taken on one day every third month starting on 5/6/2003 to 11/1/ 2005. |
| Environmental Conditions: |
|
| QAPP Information: |
QA Info Missing |
| QAPP Information Reference(s): |
|
| |
| LOE ID: |
28219 |
| |
| Pollutant: |
Ammonia |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
Total |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
51 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
| Data Used to Assess Water Quality: |
0 of 51 samples exceeded the acute criteria for ammonia and 0 out of 19 samples exceeded the chronic criteria. Samples are from the Burbank Water Reclamation Plan Annual Monitoring Reports (2003-2007). |
| Data Reference: |
NPDES receiving water monitoring reports for Burbank Water Reclamation Plant (NPDES No. CA0055531) (2003-2007). |
| |
| Water Quality Objective/Criterion: |
The acute (1-hour average) and chronic (4-day average) concentrations for ammonia are the highest concentrations of to which aquatic life can be exposed for a short period and an extended period of time, respectively, without deleterious effects applicable to protect aquatic life Beneficial Uses. These criteria are pH and temperature dependent and vary accordingly. The ammonia objectives and the pH and temperature dependent formula are found in Attachment A of Regional Board Resolution No. 2002-011. |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
| |
Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
Three receiving water stations SR1 (upstream of Discharge) SR2 (downstream of Discharge) and SR5 (just upstream of confluence with Los Angeles River). |
| Temporal Representation: |
Grab samples taken and analyzed on quarterly basis from August 2003 to April 2007 for the NPDES Data. |
| Environmental Conditions: |
|
| QAPP Information: |
Data collected for compliance with NPDES Permit No. CA0055531 Monitoring and Reporting Program. |
| QAPP Information Reference(s): |
MONITORING AND REPORTING PROGRAM NO. CI-4424 FOR CITY OF BURBANK (Burbank Water Reclamation Plant) (NPDES NO. CA0055531) |
|
| |
| LOE ID: |
2549 |
| |
| Pollutant: |
Ammonia |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
27 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
| Data Used to Assess Water Quality: |
Numeric data generated from 27 samples taken from 5/7/02 to 5/25/04 at two to three monthly intervals. No sample exceeded the Basin Plan ammonia WQO. Data was compared against 2002 adopted ammonia WQO of which the 1-hour average objective is dependent on pH and fish species and the 30-day average is dependent on pH and temperature. It was not possible to determine any exceedances of the 1-hour average WQO or the 30-day average because pH and temperature data was not provided (City of Burbank, 2004). |
| Data Reference: |
Placeholder reference 2006 303(d) |
| |
| Water Quality Objective/Criterion: |
One hour average Basin Plan Water Quality Objectives for ammonia-N was revised in 2002. For freshwaters not designated cold freshwater habitat and/or fish migration, the ammonia WQO is dependent on pH and fish species, but not temperature. The 30-day average WQO for waters not designated for spawning are dependent on pH and temperature. These WQO's have been adopted into the Basin Plan and are linked and applicable to protection of aquatic life beneficial uses. |
| Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
Four sample sites sampled from May 2002 through May 2004 at two to three monthly intervals. |
| Temporal Representation: |
Twenty seven samples were taken at three sampling stations. |
| Environmental Conditions: |
Data was collected from May 2002 through May 2004 at 3 sampling stations. Sampling station R1 is located at the confluence of Burbank Western Channel and Lockheed Channel about 50 feet above the Burbank Reclamation Plant. Station R2 is located at Burbank Western Wash at Verdugo Avenue. Station R5 is located at Burbank Western Wash just upstream from the confluence with the L.A. River. |
| QAPP Information: |
Standard Operating Procedures for Receiving Water Monitoring, Burbank Western Channel (United Water Burbank Water Reclamation Plant). |
| QAPP Information Reference(s): |
| |
DECISION ID |
16482 |
| |
| Pollutant: |
Toxicity |
| Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: |
New Decision |
| Revision Status |
Revised |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 a single line of evidence is necessary to assess listing status.
One line of evidence is available in the administrative record to assess this pollutant. Zero of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of one samples exceeded the exhibited significant acute and chronic toxicity to Pimephales promelas and Ceriodaphnia dubia and this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met. A minimum of two samples is needed for application of table 3.1.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| |
| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| |
| SWRCB Board Decision / Staff Recommendation: |
|
| |
| USEPA Decision: |
|
| |
| |
Lines of Evidence (LOEs) for Decision ID 16482 |
| |
| LOE ID: |
28259 |
| |
| Pollutant: |
Toxicity |
| LOE Subgroup: |
Toxicity |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| Aquatic Life Use: |
Wildlife Habitat |
| |
| Number of Samples: |
1 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
TOXICITY TESTING |
| Data Used to Assess Water Quality: |
Zero out of zero samples exhibited significant acute and chronic toxicity to Pimephales promelas and Ceriodaphnia dubia. Water quality samples were taken and tested for toxicity in compliance with the Surface Water Ambient Monitoring Program's monitoring and testing parameters. |
| Data Reference: |
Surface Water Ambient Monitoring Program data for all watersheds in the Los Angeles Region 2001-2005. |
| |
| Water Quality Objective/Criterion: |
The Basin Plan states at there shall be no acute or chronic toxicity in ambient waters outside mixing zones. |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
| |
Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
| |
| Evaluation Guideline: |
Toxicity was defined as a statistically significant effect in the sample exposure compared to the control using EPA recommended hypothesis testing (parametric Dunnett's Test or non-parametric Fisher's Exact Test). |
| Guideline Reference: |
Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to freshwater and Marine Organisms. Fourth Edition. EPA/600/4-90/027F. August 1993. Washington DC |
| |
| Spatial Representation: |
Water toxicity monitoring was conducted in Burbank Wash at station 412LARBBK (Lat: 34.1599, Long: -118.102789). |
| Temporal Representation: |
A grab sample was taken on 06/13/05. |
| Environmental Conditions: |
|
| QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in the Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. |
| QAPP Information Reference(s): |
Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version)
|
| |
DECISION ID |
4386 |
| |
| Pollutant: |
Indicator Bacteria |
| Final Listing Decision: |
List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list)(2006) |
| Revision Status |
Revised |
| Sources: |
Source Unknown |
| Expected TMDL Completion Date: |
2021 |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. 15 of 18 samples exceed the Basin Plan Water Quality Objective for indicator bacteria in fresh water and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
| |
| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
| |
| SWRCB Board Decision / Staff Recommendation: |
|
| |
| USEPA Decision: |
|
| |
| |
Lines of Evidence (LOEs) for Decision ID 4386 |
| |
| LOE ID: |
2535 |
| |
| Pollutant: |
Fecal Coliform |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Water Contact Recreation |
| |
| Number of Samples: |
6 |
| Number of Exceedances: |
1 |
| |
| Data and Information Type: |
PATHOGEN MONITORING |
| Data Used to Assess Water Quality: |
Six samples out of which one sample exceeded the WQO for protection of REC-1 in fresh water (LACDPW, 2003a). |
| Data Reference: |
Placeholder reference 2006 303(d) |
| |
| Water Quality Objective/Criterion: |
Basin Plan WQO for single sample fecal coliform density shall not exceed 400/100ml. This WQO is linked and applicable to protection of REC-1 beneficial uses in fresh water.
2004 Basin Plan Amendment suspends the Recreational Beneficial Uses in engineered channels during unsafe wet weather conditions. The High-Flow Exemption shall apply on days with rainfall greater than or equal to 1/2 inch and the 24 hours following the end of the 1/2 inch or greater rain event. |
| Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
One (1) sampling site. |
| Temporal Representation: |
Six monthly samples, five taken during the wet season (11/08/2002-03/15/2003) and one sample taken during the dry season (04/30/2003). |
| Environmental Conditions: |
Data age is 1-2 years. Data taken during the wet and dry seasons. |
| QAPP Information: |
Evaluation of Analytes and QA/QC Specifications for Monitoring Program (Woodward-Clyde, 1996) Los Angeles County Department of Public Works. |
| QAPP Information Reference(s): |
|
| |
| LOE ID: |
28228 |
| |
| Pollutant: |
Indicator Bacteria |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Water Contact Recreation |
| |
| Number of Samples: |
6 |
| Number of Exceedances: |
5 |
| |
| Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
| Data Used to Assess Water Quality: |
A total of five of six samples exceeded the Basin Plan Objective for indicator bacteria in fresh waters. Samples are from the County of Los Angeles Stormwater Monitoring Report 2003/04. |
| Data Reference: |
Monitoring Report (MS4 Data) - CI 6948 for order no. 01-182 NPDES No. CAS004001 Municipal Storm Water and Urban Runoff Discharges within the County of Los Angeles, and the Incorporated Cities therein, Except the City of Long Beach |
| |
| Water Quality Objective/Criterion: |
The Basin Plan bacteria objectives state that to protect water contact recreation in fresh waters individual samples shall not exceed the following limits: fecal coliform density shall not exceed 400/100 ml; and E. coli density shall not exceed 235/100 ml. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the fecal coliform density shall not exceed 200/100 ml; and the E. coli density shall not exceed 126/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018. |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
One stormwater monitoring station TS03 (at Riverside Drive in Glendale) |
| Temporal Representation: |
Grab samples collected and analyzed over the 2003-04 storm year for the MS4 data |
| Environmental Conditions: |
|
| QAPP Information: |
Data collected for compliance with NPDES Permit No. CAS004001 Monitoring and Reporting Program. |
| QAPP Information Reference(s): |
Monitoring and Reporting Program - CI 6948 for order no. 01-182
NPDES No. CAS004001 Municipal Storm Water and Urban Runoff Discharges within the County of Los Angeles, and the incorporated cities, except the City of
Long Beach
|
|
| |
| LOE ID: |
28222 |
| |
| Pollutant: |
Indicator Bacteria |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Water Contact Recreation |
| |
| Number of Samples: |
12 |
| Number of Exceedances: |
10 |
| |
| Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
| Data Used to Assess Water Quality: |
A total of 10 out of 12 samples exceeded the Basin Plan Objective for Fecal Coliform Bacteria in REC-1 waters. Samples are from the Burbank Water Reclamation Plan Annual Monitoring Reports (2003-2007). |
| Data Reference: |
NPDES receiving water monitoring reports for Burbank Water Reclamation Plant (NPDES No. CA0055531) (2003-2007). |
| |
| Water Quality Objective/Criterion: |
The Basin Plan bacteria objectives state that to protect water contact recreation in fresh waters individual samples shall not exceed the following limits: fecal coliform density shall not exceed 400/100 ml; and E. coli density shall not exceed 235/100 ml. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the fecal coliform density shall not exceed 200/100 ml; and the E. coli density shall not exceed 126/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018. |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
| |
Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
Three receiving water stations: SR1 (upstream of Discharge) SR2 (downstream of Discharge) and SR5 (just upstream of confluence with Los Angeles River). |
| Temporal Representation: |
Grab samples taken and analyzed on monthly basis from January 2002 to April 2007 for the NPDES Data. |
| Environmental Conditions: |
|
| QAPP Information: |
Data collected for compliance with NPDES Permit No. CA0055531 Monitoring and Reporting Program. |
| QAPP Information Reference(s): |
MONITORING AND REPORTING PROGRAM NO. CI-4424 FOR CITY OF BURBANK (Burbank Water Reclamation Plant) (NPDES NO. CA0055531) |
| |
DECISION ID |
16395 |
| |
| Pollutant: |
Selenium |
| Final Listing Decision: |
List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: |
New Decision |
| Revision Status |
Revised |
| Sources: |
Source Unknown |
| Expected TMDL Completion Date: |
2021 |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
Two lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. 12 of 54 samples exceed the CTR chronic criteria for freshwater aquatic life protection and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
| |
| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
| |
| SWRCB Board Decision / Staff Recommendation: |
|
| |
| USEPA Decision: |
|
| |
| |
Lines of Evidence (LOEs) for Decision ID 16395 |
| |
| LOE ID: |
28230 |
| |
| Pollutant: |
Selenium |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
Dissolved |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
6 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
| Data Used to Assess Water Quality: |
Zero of six samples exceeded the the CTR CCC limit for Selenium for freshwater aquatic life protection. Samples are from the County of Los Angeles Stormwater Monitoring Report 2003/04. |
| Data Reference: |
Monitoring Report (MS4 Data) - CI 6948 for order no. 01-182 NPDES No. CAS004001 Municipal Storm Water and Urban Runoff Discharges within the County of Los Angeles, and the Incorporated Cities therein, Except the City of Long Beach |
| |
| Water Quality Objective/Criterion: |
CTR Selenium Criterion for continuous concentration (CCC) is the highest concentration to which aquatic life can be exposed for an extended period of time (four days) without deleterious effects. This criterion is linked and applicable for the protection of aquatic life Beneficial Uses. |
| Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
One stormwater monitoring station TS03 (at Riverside Drive in Glendale). |
| Temporal Representation: |
Six grab samples collected and analyzed over the 2003-04 storm year for the MS4 data. |
| Environmental Conditions: |
|
| QAPP Information: |
Data collected for compliance with NPDES Permit No. CA004001 Monitoring and Reporting Program. |
| QAPP Information Reference(s): |
Monitoring and Reporting Program - CI 6948 for order no. 01-182
NPDES No. CAS004001 Municipal Storm Water and Urban Runoff Discharges within the County of Los Angeles, and the incorporated cities, except the City of
Long Beach
|
|
| |
| LOE ID: |
28229 |
| |
| Pollutant: |
Selenium |
| LOE Subgroup: |
Pollutant-Water |
| Matrix: |
Water |
| Fraction: |
None |
| |
| Beneficial Use: |
Warm Freshwater Habitat |
| |
| Number of Samples: |
48 |
| Number of Exceedances: |
12 |
| |
| Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
| Data Used to Assess Water Quality: |
12 of 48 samples exceeded the the CTR CCC limit for Selenium for freshwater aquatic life protection. Samples are from the Burbank Water Reclamation Plan Annual Monitoring Reports (2003-2007). |
| Data Reference: |
NPDES receiving water monitoring reports for Burbank Water Reclamation Plant (NPDES No. CA0055531) (2003-2007). |
| |
| Water Quality Objective/Criterion: |
CTR Selenium Criterion for continuous concentration (CCC) is the highest concentration to which aquatic life can be exposed for an extended period of time (four days) without deleterious effects. This criterion is linked and applicable for the protection of aquatic life Beneficial Uses. |
| Objective/Criterion Reference: |
Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency |
| |
| Evaluation Guideline: |
|
| Guideline Reference: |
| |
| Spatial Representation: |
Five receiving water stations: R1, R1.5, SR1 (upstream of Discharge) SR2 (downstream of Discharge) and SR5 (just upstream of confluence with Los Angeles River). |
| Temporal Representation: |
Grab samples taken and analyzed on monthly basis from January 2002 to April 2007 for the NPDES Data. |
| Environmental Conditions: |
|
| QAPP Information: |
Data collected for compliance with NPDES Permit No. CA0055531 Monitoring and Reporting Program. |
| QAPP Information Reference(s): |
MONITORING AND REPORTING PROGRAM NO. CI-4424 FOR CITY OF BURBANK (Burbank Water Reclamation Plant) (NPDES NO. CA0055531) |
| |
DECISION ID |
7528 |
| |
| Pollutant: |
Trash |
| Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL) |
| Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
| Revision Status |
Revised |
| Sources: |
Nonpoint Source | Surface Runoff | Urban Runoff/Storm Sewers |
| TMDL Name: |
Los Angeles River Trash (12) |
| TMDL Project Code: |
365 |
| Date TMDL Approved by USEPA: |
07/24/2008 |
| Impairment from Pollutant or Pollution: |
Pollutant |
| |
| Weight of Evidence: |
This pollutant is being considered for removal on the section 303(d) list under sections 2.2 of the Listing Policy. Under 2.2 of the Policy, a minimum of one line of evidence is needed to assess listing status.
Two lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. There is sufficient justification to place it in the Being Addressed portion of the 303(d) list because a TMDL has been completed and adopted by the Los Angeles RWQCB and approved by USEPA, and is expected to result in attainment of the standard. |
| |
| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the Water Quality Limited Segments Being Addressed category of the section 303(d) list because a TMDL has been approved by USEPA, and applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
| |
| SWRCB Board Decision / Staff Recommendation: |
|
| |
| USEPA Decision: |
|
| |
| |
Lines of Evidence (LOEs) for Decision ID 7528 |
| |
| LOE ID: |
28088 |
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| Pollutant: |
Trash |
| LOE Subgroup: |
Narrative Description Data |
| Matrix: |
Not Specified |
| Fraction: |
None |
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| Beneficial Use: |
Non-Contact Recreation |
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| Number of Samples: |
0 |
| Number of Exceedances: |
0 |
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| Data and Information Type: |
Not Specified |
| Data Used to Assess Water Quality: |
A TMDL has been approved for this water segment-pollutant combination. The Trash TMDL for the Los Angeles River Watershed was adopted by the Los Angeles RWQCB on August 09, 2007 and subsequently approved by USEPA. The TMDL was been integrated into the Basin Plan as Attachment A of Regional Board Resolution No. 2007-012. |
| Data Reference: |
Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
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| Water Quality Objective/Criterion: |
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| Objective/Criterion Reference: |
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| Evaluation Guideline: |
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| Guideline Reference: |
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| Spatial Representation: |
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| Temporal Representation: |
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| Environmental Conditions: |
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| QAPP Information: |
QA information unavailable. |
| QAPP Information Reference(s): |
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| LOE ID: |
4041 |
| |
| Pollutant: |
Trash |
| LOE Subgroup: |
Visual |
| Matrix: |
Not Specified |
| Fraction: |
Not Recorded |
| |
| Beneficial Use: |
Non-Contact Recreation |
| |
| Number of Samples: |
0 |
| Number of Exceedances: |
0 |
| |
| Data and Information Type: |
Not Specified |
| Data Used to Assess Water Quality: |
Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
| Data Reference: |
Placeholder reference pre-2006 303(d) |
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| Water Quality Objective/Criterion: |
Unspecified |
| Objective/Criterion Reference: |
Placeholder reference pre-2006 303(d) |
| |
| Evaluation Guideline: |
Unspecified |
| Guideline Reference: |
Placeholder reference pre-2006 303(d) |
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| Spatial Representation: |
Unspecified |
| Temporal Representation: |
Unspecified |
| Environmental Conditions: |
Unspecified |
| QAPP Information: |
Unspecified |
| QAPP Information Reference(s): |