|
LOE ID: |
2428 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
62 |
Number of Exceedances: |
7 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Seven out of 62 samples exceeded the dissolved lead CCC (LACDPW, 2004c. Los Angeles RWQCB, 2006) (USEPA, 2007). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
The California Toxics Rule dissolved lead criterion for continuous chronic concentration (CCC) in water for the protection of aquatic life is expressed as a function of the total hardness of the water body. The CCC for dissolved lead 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: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The Coyote Creek Monitoring Station (S13) is located at the existing ACOE stream gauge station (Stream Gauge No. F354-R) below Spring Street in the lower San Gabriel River watershed. The site assists in determining mass loading for the San Gabriel River watershed. At this location, the upstream tributary area is 150 square miles (extending into Orange County). The sampling site was chosen to avoid backwater effects from the San Gabriel River. Coyote Creek, at the gauging station, is a concrete lined trapezoidal channel. The Coyote Creek sampling location has been an active stream gauging station since 1963. |
Temporal Representation: |
Samples were taken from 11/10/1997 to 1/7/2005. |
Environmental Conditions: |
|
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: |
2429 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
62 |
Number of Exceedances: |
19 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 62 samples taken from 11/10/97 to 1/7/05 at one to two-week sampling interval. Nineteen samples exceeded the dissolved copper continuous criterion concentration (CCC) (LARWQCB, 2006). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
CTR Dissolved Copper Criterion for continuous concentration (CCC) in water for the protection of aquatic life is expressed as a function of the total hardness of the water body. The aquatic life criteria will vary depending of total hardness reported at the sampling site. The CCC for dissolved copper 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: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Station S13 on Coyote Creek. |
Temporal Representation: |
Samples collected between 11/10/97 and 1/7/05. |
Environmental Conditions: |
|
QAPP Information: |
San Gabriel River metals TMDL monitoring. |
QAPP Information Reference(s): |
|
|
LOE ID: |
2431 |
|
Pollutant: |
Ammonia |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
18 |
Number of Exceedances: |
10 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Based on 30-day average concentrations of ammonia, 10 samples out of 18 total samples exceed the ammonia objective. Ambient measurements of pH and temperature (30-day averages) were used to calculate the water quality objective (LACSD, 2004a). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
In order to protect aquatic life, ammonia concentrations in inland surface waters characteristic of freshwater shall not exceed the values calculated for the appropriate instream conditions [both pH and temperature] shown in Tables 3-1 to 3-3 [in the Basin Plan] (per U.S. EPA's most recent criteria guidance document, '1999 Update of Ambient Water Quality Criteria for Ammonia'). |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Three stations. |
Temporal Representation: |
Samples were collected from June 2003 through November 2004. New management practices were begun at the beginning of this period and may have resulted in a change in water quality. Water quality measurements collected before the implementation of management measures were not considered representative of current conditions. |
Environmental Conditions: |
|
QAPP Information: |
NPDES quality assurance. |
QAPP Information Reference(s): |
|
|
LOE ID: |
2432 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
21 |
Number of Exceedances: |
|
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 21 samples taken from 10/30/00 to 4/30/03 at one to two-week sampling interval. It was not possible to determine any exceedances of total copper concentration in this water body because there is not guideline applicable to assess total copper (LACDPW, 2004). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
There is no guideline for total copper. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
One sample site sampled during the dry and wet season beginning from 10/12/00 through 4/30/03 at approximately one to two week intervals. |
Temporal Representation: |
Twenty-one samples where taken during the wet and dry season from 10/12/00 to 4/30/03 at approximately one to two week intervals as part of the Los Angeles County Storm water monitoring program prepared by the Los Angeles County Department of Public Works. |
Environmental Conditions: |
The Coyote Creek Monitoring Station (S13) is located at the existing ACOE stream gauge station (Stream Gauge No. F354-R) below Spring Street in the lower San Gabriel River watershed. The site assists in determining mass loading for the San Gabriel River watershed. At this location, the upstream tributary area is 150 square miles (extending into Orange County). The sampling site was chosen to avoid backwater effects from the San Gabriel River. Coyote Creek, at the gauging station, is a concrete lined trapezoidal channel. The Coyote Creek sampling location has been an active stream gauging station since 1963. |
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: |
2438 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
97 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
One of 97 total lead samples exceed the dissolved lead CCC. This is a conservative estimate as total lead measurements are greater than or equal to dissolved lead measurements (LACSD, 2006). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
The California Toxics Rule dissolved lead criterion for continuous concentration (CCC) in water for the protection of aquatic life is expressed as a function of the total hardness of the water body. The CCC for dissolved lead 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: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Stations SG-RA, SG-RA1, and SG-R9E. |
Temporal Representation: |
Samples taken from July 2001 to July 2005 at one to two-week sampling intervals. |
Environmental Conditions: |
|
QAPP Information: |
QA Info Missing |
QAPP Information Reference(s): |
|
|
LOE ID: |
2440 |
|
Pollutant: |
Diazinon |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
22 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 22 samples taken from 10/12/00 to 4/30/03 at one to two-week sampling interval. Two samples out 22 exceeded the acute DFG fresh water hazard assessment criteria for the protection of aquatic life (LACDPW, 2004c). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
Basin Plan narrative WQO for Pesticides. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
Numerical Diazinon guideline used to interpret Basin Plan narrative pesticide WQO. The numeric guidelines are 0.10 ug/l 4-day average and 0.16 ug/l 1-hour average generated by DFG as a fresh water hazard assessment criteria for the protection of aquatic life (Siepman & Finlayson, 2000; Finlayson, 2004). |
Guideline Reference: |
Placeholder reference 2006 303(d) |
|
Spatial Representation: |
One sample site sampled during the dry and wet season beginning from 10/12/00 through 4/30/03 at approximately one to two week intervals. |
Temporal Representation: |
Twenty-one samples were taken during the wet season and one sample was taken during the dry season from 10/12/00 to 4/30/03 at approximately one to two week intervals as part of the Los Angeles County Storm water monitoring program prepared by the Los Angeles County Department of Public Works. |
Environmental Conditions: |
The Coyote Creek Monitoring Station (S13) is located at the existing ACOE stream gage station (Stream Gage No. F354-R) below Spring Street in the lower San Gabriel River watershed. The site assists in determining mass loading for the San Gabriel River watershed. At this location, the upstream tributary area is 150 square miles (extending into Orange County). The sampling site was chosen to avoid backwater effects from the San Gabriel River. Coyote Creek, at the gauging station, is a concrete lined trapezoidal channel. The Coyote Creek sampling location has been an active stream gauging station since 1963. |
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: |
2441 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
15 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 15 samples taken from 10/12/00 to 1/28/02 at one to two-week sampling interval. One sample was below the 6.5 pH basin plan WQO for the protection of aquatic life beneficial uses (LACDPW, 2003a). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
Basin Plan WQO for inland surface waters shall not be depressed below 6.5 or raised above 8.5 as a result of waster discharges to protect aquatic life BUs. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
One sample site sampled during the dry and wet season beginning from 10/12/00 through 1/28/02 at approximately one to two week intervals. |
Temporal Representation: |
Fifteen samples where taken during the wet and dry season from 10/12/00 to 1/28/02 at approximately one to two week intervals as part of the Los Angeles County Storm water monitoring program prepared by the Los Angeles County Department of Public Works. |
Environmental Conditions: |
The Coyote Creek Monitoring Station (S13) is located at the existing ACOE stream gage station (Stream Gage No. F354-R) below Spring Street in the lower San Gabriel River watershed. The site assists in determining mass loading for the San Gabriel River watershed. At this location, the upstream tributary area is 150 square miles (extending into Orange County). The sampling site was chosen to avoid backwater effects from the San Gabriel River. Coyote Creek, at the gauging station, is a concrete lined trapezoidal channel. The Coyote Creek sampling location has been an active stream gauging station since 1963. |
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: |
2442 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
229 |
Number of Exceedances: |
97 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Ninety-seven samples out of 229 total samples exceed the pH objective. |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
Basin Plan: The pH of inland surface waters shall not be depressed below 6.5 or raised above 8.5 as a result of waste discharges. Ambient pH levels shall not be changed more than 0.5 units from natural conditions as a result of waste discharge. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Three stations. |
Temporal Representation: |
Samples were collected weekly between June 2003 and November 2004. |
Environmental Conditions: |
|
QAPP Information: |
NPDES quality assurance. |
QAPP Information Reference(s): |
|
|
LOE ID: |
4096 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
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) |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
|
LOE ID: |
21346 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
75 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 75 samples exceeded the hardness dependent California Toxics Rule Criterion Maximum Concentration for Lead and zero of 75 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for Lead. Water quality samples were taken and analyzed for Lead in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
NPDES receiving water metals data for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Continuous Concentrations for Lead to protect aquatic life in freshwater. The Lead criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples were taken and analyzed on a yearly basis from August 1995 to July 2001 and on a bimonthly and monthly basis from July 2001 to February 2007 |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
21353 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
51 |
Number of Exceedances: |
7 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Seven of 51 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for lead and zero of 100 samples exceeded the hardness dependent Criterion Maximum Concentration. Water quality samples were taken and analyzed for lead in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
Data Reference: |
Lead Monitoring Data (MS4 Data) for Coyote Creek. 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 California Toxics Rule lists Criterion Continuous Concentrations for Lead to protect aquatic life in freshwater. The Lead criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples, sampled periodically throughout the year from June 1995 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
21361 |
|
Pollutant: |
Diazinon |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
23 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Four of 23 samples exceeded the CDFG chronic Hazard Assessment Criterion and three of 23 samples exceeded the CDFG acute Hazard Assessment Criterion for Diazinon. Water quality samples were taken and analyzed for Diazinon in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The Basin Plan states, "[n]o individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses." |
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: |
The California Department of Fish and Game (CDFG) lists an acute and chronic Hazard Assessment Criterion of 0.16 ug/L and 0.10 ug/L for diazinon. |
Guideline Reference: |
Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
|
Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game |
|
Spatial Representation: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: receiving water station RA1 located upstream of discharge from Long Beach Water Reclamation Plant and receiving water station RA located downstream of discharge from Long Beach Water Reclamation Plant. |
Temporal Representation: |
Grab samples taken and analyzed on a bimonthly and monthly basis from June 2004 to February 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
25003 |
|
Pollutant: |
Diazinon |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
24 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Three of 24 samples exceeded the CDFG chronic Hazard Assessment Criterion for Diazinon and one of 24 samples exceeded the CDFG acute Hazard Assessment Criterion. Water quality samples were taken and analyzed for Diazinon in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
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 states, "[n]o individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses." |
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: |
The California Department of Fish and Game (CDFG) lists an acute and chronic Hazard Assessment Criterion of 0.16 ug/L and 0.10 ug/L for diazinon. |
Guideline Reference: |
Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
|
Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game |
|
Spatial Representation: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year, four wet-weather events and two dry-weather events, from October 2003 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
25016 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
276 |
Number of Exceedances: |
105 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
105 of 276 samples exceeded the Basin Plan water quality objectives for pH in inland surface water bodies. Water quality samples were taken and analyzed for pH in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The Basin Plan states, "pH of inland surface waters shall not be depressed below 6.5 or raised above 8.5 as a result of wastes discharges." |
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: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: receiving water station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; receiving water station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples taken and analyzed on a bimonthly and monthly basis from December 2004 to February 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
25036 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
14 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 14 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for copper and zero of 13 samples exceeded the hardness dependent California Toxics Rule Criterion Maximum Concentration. Water quality samples were taken and analyzed for Copper in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
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 California Toxics Rule lists Criterion Continuous Concentrations for copper to protect aquatic life in freshwater. The copper criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criterion. |
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: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year (four wet-weather events and two dry-weather events), from March 2005 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
25038 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
157 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Four of 157 samples exceeded the California Toxics Rule Criterion Continuous Concentration for Copper and three of 157 samples exceeded the Criterion Maximum Concentration. Water quality samples were taken and analyzed for Copper in accordance with the Long Beach Waste Water Reclamation Plant permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Maximum Concentrations and Criterion Continuous Concentrations for Copper to protect aquatic life in freshwater. The Copper criteria in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples were taken and analyzed on an approximately and monthly basis from August 2004 to February 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County (NPDES No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
25144 |
|
Pollutant: |
Sulfates |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
24 |
Number of Exceedances: |
8 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Eight of 24 samples exceeded the California Code of Regulations secondary MCL for sulfate in Coyote Creek. Water quality samples were taken and analyzed for Sulfate in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
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 California Code of Regulations' Table 64449-B lists a recommended maximum contamination level (secondary MCL) of 250 mg/L for Sulfate to protect drinking water sources. |
Objective/Criterion Reference: |
California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring. http://www.cdph.ca.gov/certlic/drinkingwater/Pages/Lawbook.aspx |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year (four wet-weather events and two dry-weather events), from October 2003 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
25172 |
|
Pollutant: |
Total Dissolved Solids |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
94 |
Number of Exceedances: |
93 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
93 of 94 samples exceeded the California Code of Regulations' secondary MCL for Total Dissolved Solids in Coyote Creek. Water quality samples were taken and analyzed for Total Dissolved Solids in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The California Code of Regulations' Table 64449-B lists a recommended maximum contamination level (secondary MCL) of 500 mg/L for Total Dissolved Solids to protect drinking water sources. |
Objective/Criterion Reference: |
California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring. http://www.cdph.ca.gov/certlic/drinkingwater/Pages/Lawbook.aspx |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: receiving water station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; receiving water station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples taken and analyzed on a bimonthly and monthly basis from June 2004 to February 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
25173 |
|
Pollutant: |
Total Dissolved Solids |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
24 |
Number of Exceedances: |
11 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
11 of 24 samples exceeded the California Code of Regulations' secondary MCL for Total Dissolved Solids in Coyote Creek. Water quality samples were taken and analyzed for Total Dissolved Solids in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
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 California Code of Regulations' Table 64449-B lists a recommended maximum contamination level (secondary MCL) of 500 mg/L for Total Dissolved Solids to protect drinking water sources. |
Objective/Criterion Reference: |
California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring. http://www.cdph.ca.gov/certlic/drinkingwater/Pages/Lawbook.aspx |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples, approximately six per year (four wet-weather events and two dry-weather events), from October 2003 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
26260 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
16 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 16 samples exceeded the Basin Plan water quality objectives for pH in inland surface water bodies. Water quality samples were taken and analyzed for pH in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
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 states, "pH of inland surface waters shall not be depressed below 6.5 or raised above 8.5 as a result of wastes discharges." |
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: |
The Los Angeles County Department of Public Works conducted sampling at the mass emmission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year (four wet-weather events and two dry-weather events), from December 2004 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
26860 |
|
Pollutant: |
Ammonia |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
76 |
Number of Exceedances: |
11 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
11 of 76 samples exceeded the 30-day average objective and 2 of 280 samples exceeded the one-hour objective for ammonia. Water quality samples were taken and analyzed for ammonia in accordance with the Long Beach Waste Water Reclamation Plant permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The Basin Plan states, "In order to protect aquatic life, ammonia concentrations in inland surface waters characteristic of freshwater shall not exceed the values calculated for the appropriate instream conditions shown in Tables 3-1 to 3-3." The one-hour average objective is dependent on pH and the presence or absence of early life stages of fish (ELS) but not temperature. The 30-day average objective is dependent on pH, temperature and ELS in Tables 3-1 to 3-3. The ammonia objectives and the pH and temperature dependent formulas 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: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples were taken and analyzed on a weekly basis from December 2004 to January 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County (NPDES No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
|
LOE ID: |
27248 |
|
Pollutant: |
Ammonia |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
18 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 18 samples exceeded the one-hour objective for ammonia. Water quality samples were taken and analyzed for Ammonia in accordance with the County of Los Angeles MS4 Permit monitoring and testing parameters. |
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 states, "In order to protect aquatic life, ammonia concentrations in inland surface waters characteristic of freshwater shall not exceed the values calculated for the appropriate instream conditions shown in Tables 3-1 to 3-3." The one-hour average objective is dependent on pH and the presence or absence of early life stages of fish (ELS) but not temperature. The 30-day average objective is dependent on pH, temperature and ELS in Tables 3-1 to 3-3. 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: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year (four wet-weather events and two dry-weather events), from October 2003 through April 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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: |
28699 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Narrative Description Data |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
A TMDL has been established for this water segment-pollutant combination. The San Gabriel River MetalsTMDL was established by USEPA on March 26, 2007. |
Data Reference: |
Staff report, appendix, and letter to SWRCB and Los Angeles RWQCB establishing a TMDL for Metals in the San Gabriel River Watershed. |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
|
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
QA information unavailable. |
QAPP Information Reference(s): |
|
|
LOE ID: |
28716 |
|
Pollutant: |
Lead |
LOE Subgroup: |
Narrative Description Data |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
A TMDL has been established for this water segment-pollutant combination. The San Gabriel River MetalsTMDL was established by USEPA on March 26, 2007. |
Data Reference: |
Staff report, appendix, and letter to SWRCB and Los Angeles RWQCB establishing a TMDL for Metals in the San Gabriel River Watershed. |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
|
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
QA information unavailable. |
QAPP Information Reference(s): |
|
|
LOE ID: |
30225 |
|
Pollutant: |
Benthic-Macroinvertebrate Bioassessments |
LOE Subgroup: |
Population/Community Degradation |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wetland Habitat | Wildlife Habitat |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Benthic macroinvertebrate surveys |
Data Used to Assess Water Quality: |
The IBI scores at this site ranked in the very poor range (3 in 2003 and 2 in 2004). |
Data Reference: |
Los Angeles County 1994-2005 Integrated Receiving Water Impacts Report. Section 4, San Gabriel River Watershed Management Area, pp4.1 - 4.36. |
|
Water Quality Objective/Criterion: |
Los Angeles RWQCB Basin Plan Objectives for Toxicity which states All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant or animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, bioassays of appropriate duration or other appropraite methods as specified by the State or Regional Board. |
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: |
The IBI is a multi-metric assessment that employs biological metrics that respond to a habitat or water quality impairment. Each of the biological metrics measured at a site are converted to an IBI score then summed. These cumulative scores are then ranked according to very good (80-56), good (41-55), fair (27-40), poor (14-26) and very poor (0-13) habitat conditions. Sites with scores below 26 are considered to have impaired conditions. |
Guideline Reference: |
A Quantitative Tool for Assessing the Integrity of Southern Coastal California Streams. Environmental Management Vol. 35, No. 4, pp. 493-504. |
|
Los Angeles County 1994-2005 Integrated Receiving Water Impacts Report. Section 3, Methods, pp3.1 - 3.28 |
|
Los Angeles County 1994-2005 Integrated Receiving Water Impacts Report. Section 4, San Gabriel River Watershed Management Area, pp4.1 - 4.36. |
|
Spatial Representation: |
One site in San Jose Creek was sampled, downstream of Willow Street, at N 33º 47.719 W 118º 05.361. |
Temporal Representation: |
Sites were sampled in October of 2003 and October of 2004. |
Environmental Conditions: |
Benthic macroinvertebrate populations and IBI scores may also be affected by a wide range of anthropogenic stressors. |
QAPP Information: |
Data was collected in compliance with California Stream Bioassessment Procedure. |
QAPP Information Reference(s): |
California Stream Bioassessment Procedure (Protocol Brief for Biological and Physical/Habitat Assessment in Wadeable Streams) California Department of Fish and Game Water Pollution Control Laboratory Aquatic Bioassessment Laboratory Revision Date - December, 2003 |
|
Los Angeles County 1994-2005 Integrated Receiving Water Impacts Report. Section 3, Methods, pp3.1 - 3.28 |
|
|
LOE ID: |
25142 |
|
Pollutant: |
Sulfates |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
94 |
Number of Exceedances: |
53 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
53 of 94 samples exceeded the Basin Plan California Code of Regulations secondary MCL for Sulfate in Coyote Creek. Water quality samples were taken and analyzed for Sulfate in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
|
Water Quality Objective/Criterion: |
The California Code of Regulations' Table 64449-B lists a recommended maximum contamination level (secondary MCL) of 250 mg/L for Sulfate to protect drinking water sources. |
Objective/Criterion Reference: |
California Code of Regulations, Title 22, Division 4, Chapter 15. Domestic Water Quality and Monitoring. http://www.cdph.ca.gov/certlic/drinkingwater/Pages/Lawbook.aspx |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: receiving water station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; receiving water station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples taken and analyzed on a bimonthly and monthly basis from June 2004 to February 2007. |
Environmental Conditions: |
|
QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
|
DECISION ID |
4549 |
|
Pollutant: |
Copper, Dissolved |
Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: |
Do Not Delist from 303(d) list (TMDL required list)(2006) |
Revision Status |
Revised |
Sources: |
Source Unknown |
TMDL Name: |
San Gabriel River Metals (39) |
TMDL Project Code: |
385 |
Date TMDL Approved by USEPA: |
03/27/2007 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for removal from the section 303(d) list under section 2.2 and 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.
Five 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 established by USEPA, and is expected to result in attainment of the standard.
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. 19 of 76 samples exceeded the lead CTR Criterion Continuous Concentration for the dissolved fraction, four of 178 samples exceeded the lead CTR Criterion Continuous Concentration for the total fraction, and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy for the dissolved fraction.
4.The San Gabriel River Metals TMDL has been established by USEPA on 03/26/2007.
5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
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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 established by USEPA, and applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 4549 |
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LOE ID: |
2432 |
|
Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
21 |
Number of Exceedances: |
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|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 21 samples taken from 10/30/00 to 4/30/03 at one to two-week sampling interval. It was not possible to determine any exceedances of total copper concentration in this water body because there is not guideline applicable to assess total copper (LACDPW, 2004). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
There is no guideline for total copper. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
One sample site sampled during the dry and wet season beginning from 10/12/00 through 4/30/03 at approximately one to two week intervals. |
Temporal Representation: |
Twenty-one samples where taken during the wet and dry season from 10/12/00 to 4/30/03 at approximately one to two week intervals as part of the Los Angeles County Storm water monitoring program prepared by the Los Angeles County Department of Public Works. |
Environmental Conditions: |
The Coyote Creek Monitoring Station (S13) is located at the existing ACOE stream gauge station (Stream Gauge No. F354-R) below Spring Street in the lower San Gabriel River watershed. The site assists in determining mass loading for the San Gabriel River watershed. At this location, the upstream tributary area is 150 square miles (extending into Orange County). The sampling site was chosen to avoid backwater effects from the San Gabriel River. Coyote Creek, at the gauging station, is a concrete lined trapezoidal channel. The Coyote Creek sampling location has been an active stream gauging station since 1963. |
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): |
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LOE ID: |
25036 |
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Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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Number of Samples: |
14 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 14 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for copper and zero of 13 samples exceeded the hardness dependent California Toxics Rule Criterion Maximum Concentration. Water quality samples were taken and analyzed for Copper in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
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 |
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Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Continuous Concentrations for copper to protect aquatic life in freshwater. The copper criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criterion. |
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 |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples were taken approximately six per year (four wet-weather events and two dry-weather events), from March 2005 through April 2007. |
Environmental Conditions: |
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QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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
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LOE ID: |
25038 |
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Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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Number of Samples: |
157 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Four of 157 samples exceeded the California Toxics Rule Criterion Continuous Concentration for Copper and three of 157 samples exceeded the Criterion Maximum Concentration. Water quality samples were taken and analyzed for Copper in accordance with the Long Beach Waste Water Reclamation Plant permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
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Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Maximum Concentrations and Criterion Continuous Concentrations for Copper to protect aquatic life in freshwater. The Copper criteria in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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 |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples were taken and analyzed on an approximately and monthly basis from August 2004 to February 2007. |
Environmental Conditions: |
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QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County (NPDES No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
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LOE ID: |
28699 |
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Pollutant: |
Copper |
LOE Subgroup: |
Narrative Description Data |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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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 established for this water segment-pollutant combination. The San Gabriel River MetalsTMDL was established by USEPA on March 26, 2007. |
Data Reference: |
Staff report, appendix, and letter to SWRCB and Los Angeles RWQCB establishing a TMDL for Metals in the San Gabriel River Watershed. |
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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: |
2429 |
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Pollutant: |
Copper |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
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Beneficial Use: |
Warm Freshwater Habitat |
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Number of Samples: |
62 |
Number of Exceedances: |
19 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Numeric data generated from 62 samples taken from 11/10/97 to 1/7/05 at one to two-week sampling interval. Nineteen samples exceeded the dissolved copper continuous criterion concentration (CCC) (LARWQCB, 2006). |
Data Reference: |
Placeholder reference 2006 303(d) |
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Water Quality Objective/Criterion: |
CTR Dissolved Copper Criterion for continuous concentration (CCC) in water for the protection of aquatic life is expressed as a function of the total hardness of the water body. The aquatic life criteria will vary depending of total hardness reported at the sampling site. The CCC for dissolved copper 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: |
Placeholder reference 2006 303(d) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Station S13 on Coyote Creek. |
Temporal Representation: |
Samples collected between 11/10/97 and 1/7/05. |
Environmental Conditions: |
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QAPP Information: |
San Gabriel River metals TMDL monitoring. |
QAPP Information Reference(s): |
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DECISION ID |
4518 |
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Pollutant: |
Lead |
Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: |
Do Not Delist from 303(d) list (TMDL required list)(2006) |
Revision Status |
Revised |
Sources: |
Major Municipal Point Source-wet weather discharge |
TMDL Name: |
San Gabriel River Metals (39) |
TMDL Project Code: |
385 |
Date TMDL Approved by USEPA: |
03/27/2007 |
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 and 4.1 of the Listing Policy. Under section 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant. Data from lines of evidence 2428 and 2438 will not be considered and will be disassociated in this decision due to lines of evidence 21346 and 21353 including all the data listed in lines of evidence 2428 and 2438 along with newer data.
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 established by USEPA, and is expected to result in attainment of the standard.
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. Seven of 51 samples exceeded the lead CTR Criterion Continuous Concentration for the dissolved fraction, zero out of 75 samples exceeded the lead CTR Criterion Continuous Concentration for the total fraction, and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy for the dissolved fraction.
4.The San Gabriel River Metals TMDL has been established by USEPA on 03/26/2007.
5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
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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 established by USEPA, and applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 4518 |
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LOE ID: |
21346 |
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Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
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Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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Number of Samples: |
75 |
Number of Exceedances: |
0 |
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Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Zero of 75 samples exceeded the hardness dependent California Toxics Rule Criterion Maximum Concentration for Lead and zero of 75 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for Lead. Water quality samples were taken and analyzed for Lead in accordance with the Sanitation Districts of Los Angeles County permit monitoring and testing parameters. |
Data Reference: |
NPDES receiving water monitoring reports for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
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NPDES receiving water metals data for Long Beach Water Reclamation Plant (NPDES No. CA0054119), Los Coyotes Water Reclamation Plant (NPDES No. CA0053716), Pomona Water Reclamation Plant (NPDES No. CA0053911), San Jose Creek Water Reclamation Plant (NPDES No. CA0053619), and Whittier Narrows Creek Water Reclamation Plant (NPDES No. CA0054011). |
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Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Continuous Concentrations for Lead to protect aquatic life in freshwater. The Lead criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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 |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
The Sanitation Districts of Los Angeles County conducted sampling in Coyote Creek in the following receiving water monitoring stations: station RA1 located upstream of discharge from Long Beach Water Reclamation Plant; station RA located downstream of discharge from Long Beach Water Reclamation Plant; and station R9 East located at the downstream end of the pavement lining (near Atherton Street) in the eastern low flow channel of San Gabriel River. |
Temporal Representation: |
Grab samples were taken and analyzed on a yearly basis from August 1995 to July 2001 and on a bimonthly and monthly basis from July 2001 to February 2007 |
Environmental Conditions: |
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QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Sanitation Districts of Los Angeles County Permit (No. CA0054119) Monitoring and Reporting Program. |
QAPP Information Reference(s): |
Long Beach Water Reclamation Plant Monitoring and Reporting Program for NPDES No. CA0054119 (County Sanitation Districts of Los Angeles County) |
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LOE ID: |
21353 |
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Pollutant: |
Lead |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
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Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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Number of Samples: |
51 |
Number of Exceedances: |
7 |
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Data and Information Type: |
Fixed station physical/chemical (conventional plus toxic pollutants) |
Data Used to Assess Water Quality: |
Seven of 51 samples exceeded the hardness dependent California Toxics Rule Criterion Continuous Concentration for lead and zero of 100 samples exceeded the hardness dependent Criterion Maximum Concentration. Water quality samples were taken and analyzed for lead in accordance with the Municipal Separate Storm Sewer System (MS4) permit monitoring and testing parameters. |
Data Reference: |
Lead Monitoring Data (MS4 Data) for Coyote Creek. Municipal Storm Water and Urban Runoff Discharges within the County of Los Angeles, and the Incorporated Cities therein, Except the City of Long Beach. |
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Water Quality Objective/Criterion: |
The California Toxics Rule lists Criterion Continuous Concentrations for Lead to protect aquatic life in freshwater. The Lead criterion in freshwater is hardness dependent for each sample and varies based on the on the ambient hardness during sampling. Section (b)(1) in CTR contains the hardness dependent formula for metals criteria. |
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 |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
The Los Angeles County Department of Public Works conducted sampling at the mass emission monitoring station S13 located below Spring Street in Coyote Creek (Lat: 33.8098610175, Long: -118.077061937). |
Temporal Representation: |
Composite samples, sampled periodically throughout the year from June 1995 through April 2007. |
Environmental Conditions: |
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QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in County of Los Angeles MS4 Permit (NPDES 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
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LOE ID: |
28716 |
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Pollutant: |
Lead |
LOE Subgroup: |
Narrative Description Data |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Preservation of Rare & Endangered Species | Wildlife Habitat |
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Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
A TMDL has been established for this water segment-pollutant combination. The San Gabriel River MetalsTMDL was established by USEPA on March 26, 2007. |
Data Reference: |
Staff report, appendix, and letter to SWRCB and Los Angeles RWQCB establishing a TMDL for Metals in the San Gabriel River Watershed. |
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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): |