Water Body Name: | San Joaquin River ( Tuolumne River to Stanislaus River) |
Water Body ID: | CAR5353000020041020143854 |
Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 9262 |
LOE ID: | 6950 |
Pollutant: | Selenium |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 346 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | Zero of the 346 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Selenium. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Selenium levels should not to exceed 5 ug/L (CTR) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Jan 4 2001 to Sep 27 2007 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7367 |
LOE ID: | 2742 |
Pollutant: | Boron |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
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 2006 303(d) |
Water Quality Objective/Criterion: | |
Objective/Criterion Reference: | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | |
Temporal Representation: | |
Environmental Conditions: | |
QAPP Information: | QA Info Missing |
QAPP Information Reference(s): | |
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LOE ID: | 22640 |
Pollutant: | Boron |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 73 |
Number of Exceedances: | 3 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | From 15 March to 15 September, 3 out of 73 total samples exceeded the monthly mean objective and 0 out of 263 total samples exceeded the single sample maximum objective. From 16 September to 14 March, 4 out of 75 total samples exceeded the monthly mean objective and 0 out of 267 total samples exceeded the single sample maximum objective. The objective specific to critical years was not used because none of the 11 years were critically dry. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | For the San Joaquin River from the mouth of the Merced River to Vernalis (including at Maze Blvd), from 15 March to 15 September, the Boron water quality objective is 2.0 mg/L (max.) and 0.8 mg/L (monthly mean); from 16 September to 14 March the water quality objective is 2.6 mg/L (max.), 1.0 mg/L (monthly mean), except during Critical Years when the water quality objective is 1.3 mg/L (monthly mean) according to the CVRWQCB Basin Plan (2007a, Table III-1, p. III-3.00). |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | |
Guideline Reference: | Water Quality for Agriculture, Food and Agriculture Organization of the United Nations - Irrigation and Drainage Paper No. 29, Rev 1, Rome (1985) |
Spatial Representation: | Samples were collected from San Joaquin River at Maze Blvd. |
Temporal Representation: | Samples were collected approximately weekly between March 1996 and March 2006. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
Lines of Evidence (LOEs) for Decision ID 6359 |
LOE ID: | 22641 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 556 |
Number of Exceedances: | 162 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Mean daily EC values were averaged for five hundred and fifty-six weeks for the San Joaquin River between 1995 and 2006. Of the 556 weekly averages, 162 exceeded the California Secondary MCL for Municipal Water Quality Objectives for electrical conductivity in surface water. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | The water quality objective used was the California Secondary MCL recommended level of 900 uS/cm. The Basin Plan includes chemical constituent water quality objectives that include (by reference) secondary maximum contaminant levels (MCL's) protective of MUN (CVRWQCB, 2007a).The secondary MCL's for electrical conductivity provide a range of values including a recommended level (900 uS/cm), upper level (1600 uS/cm) and a short-term level (2200 uS/cm). The 'recommended' concentration was used as it is intended to be protective of all drinking water uses. Though individual listing evaluations did not look at the water supply source serving the given geographic area, there are certain areas that receive supply waters (such as the Delta Mendota Canal) that at times may be elevated above the recommended level of the secondary MCL. Where future information is made available to document this to be the case, these water bodies may be re-evaluated in future listing cycles. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
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: | Samples were collected from San Joaquin River at Maze Road, in San Joaquin County, CA. |
Temporal Representation: | Samples were collected between October 1995 and October 2006. Samples were collected at approximately weekly intervals. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
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LOE ID: | 2741 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
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 2006 303(d) |
Water Quality Objective/Criterion: | |
Objective/Criterion Reference: | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | |
Temporal Representation: | |
Environmental Conditions: | |
QAPP Information: | QA Info Missing |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 6366 |
LOE ID: | 22743 |
Pollutant: | Chlorpyrifos |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 20 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | 20 water samples were collected from San Joaquin River from April through August 2001, representing 20 4-day average concentrations and 20 1-hour average concentrations. 0 of 20 4-day average concentrations exceeded the 4-day maximum concentration guideline of 0.015 ug/L.0 of 20 1-hour average concentrations exceeded the maximum 1-hour concentration of 0.025 ug/L. |
Data Reference: | Surface Water database (SWDB) for Central Valley waterbodies, 2000-2005 |
Correspondence between the Department of Pesticide Regulation and Central Valley Regional Water Quality Control Board regarding water quality data for waterbodies in the Central Valley | |
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses (CVRWQCB, 2007). All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life (CVRWQCB, 2007). |
Objective/Criterion 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 |
Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region | |
Evaluation Guideline: | California Department of Fish and Game Hazard Assessment Criteria - 0.015 ug/L 4-day average and 0.025 ug/L 1-hour average (Siepmann and Finlayson, 2000, with minor corrections to significant figures as described in Beaulaurier et al., 2005). |
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 |
Spatial Representation: | Samples were collected from San Joaquin River at Maze Blvd. |
Temporal Representation: | Samples were collected from January 2000 to August 2001 at weekly interval. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Minimum requirements for the CDPR Surface Water Database are: Name of the sampling agency or organization, Date that each sample was collected, Date of each sample analysis, County where samples were taken, Detailed sampling location information (including latitude and longitude or township/range/section if available), detailed map or description of each sampling site (i.e., address, cross roads, etc.), Name or description of water body sampled, Name of the active ingredient analyzed for; concentration detected (with unit of measurement), and limit of quantitation, Description of analytical QA/QC plan, or statement that no formal plan exists. Additional optional requirements are included on DPR's webpage at http://www.cdpr.ca.gov/docs/emon/surfwtr/caps/req.htm |
QAPP Information Reference(s): | Standard Operating Procedure for Conducting Surface Water Monitoring for Pesticides |
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LOE ID: | 2738 |
Pollutant: | Chlorpyrifos |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Not Recorded |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Wildlife 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 2006 303(d) |
Water Quality Objective/Criterion: | |
Objective/Criterion Reference: | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | |
Temporal Representation: | |
Environmental Conditions: | |
QAPP Information: | QA Info Missing |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 6367 |
LOE ID: | 22755 |
Pollutant: | Diazinon |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 20 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | 20 Water samples were collected from San Joaquin River from April through August 2001, representing 20 4-day average concentrations and 20 1-hour average concentrations.0 of 20 available 4-day average concentrations exceeded the 4-day maximum concentration guideline of 0.1 ug/L. 0 of 20 available 1-hour average concentrations exceeded the maximum 1-hour concentration of 0.16 ug/L. |
Data Reference: | Surface Water database (SWDB) for Central Valley waterbodies, 2000-2005 |
Correspondence between the Department of Pesticide Regulation and Central Valley Regional Water Quality Control Board regarding water quality data for waterbodies in the Central Valley | |
Water Quality Objective/Criterion: | No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses (CVRWQCB, 2007). All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life (CVRWQCB, 2007). |
Objective/Criterion 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 |
Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region | |
Evaluation Guideline: | California Fish and Game Hazard Assessment Criteria - 0.160 ug/L 1-hour average and 0.100 ug/L 4-day average concentration not to be exceeded more than once every three years (Siepmann and Finlayson, 2000 and Finlayson, 2004). |
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 |
Spatial Representation: | Samples were collected from San Joaquin River at Maze Blvd. |
Temporal Representation: | Samples were collected at weekly from April through August 2001. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Minimum requirements for the CDPR Surface Water Database are: Name of the sampling agency or organization, Date that each sample was collected, Date of each sample analysis, County where samples were taken, Detailed sampling location information (including latitude and longitude or township/range/section if available), detailed map or description of each sampling site (i.e., address, cross roads, etc.), Name or description of water body sampled, Name of the active ingredient analyzed for; concentration detected (with unit of measurement), and limit of quantitation, Description of analytical QA/QC plan, or statement that no formal plan exists. Additional optional requirements are included on DPR's webpage at http://www.cdpr.ca.gov/docs/emon/surfwtr/caps/req.htm |
QAPP Information Reference(s): | Standard Operating Procedure for Conducting Surface Water Monitoring for Pesticides |
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LOE ID: | 2739 |
Pollutant: | Diazinon |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Not Recorded |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Wildlife 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 2006 303(d) |
Water Quality Objective/Criterion: | |
Objective/Criterion Reference: | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | |
Temporal Representation: | |
Environmental Conditions: | |
QAPP Information: | QA Info Missing |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12165 |
LOE ID: | 23421 |
Pollutant: | .alpha.-BHC (Benzenehexachloride) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 20 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | - Twenty water samples were taken from the San Joaquin River at Maze Road bridge near Modesto between April 2001 and August 2001. None of the available twenty water samples exceeded the minimum criterion for Alpha-HCH in surface water listed under the National Ambient Water Quality Criteria.- The twenty samples had high Reporting Limits hence the data could not be used in the analysis (Listing Policy Section 6.5.1.1) (SWRCB, 2004). |
Data Reference: | National Water Quality Assessment database, San Joaquin and Tulare Basins data |
Water Quality Objective/Criterion: | Total identifiable persistent chlorinated hydrocarbon pesticides shall not be present in the water column at concentrations detectable within the accuracy of analytical methods approved by the Environmental Protection Agency or the Executive Officer (CVRWQCB, 2007). |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | National Ambient Water Quality Criteria Guideline <0.0026 g/L. |
Guideline Reference: | National recommended water quality criteria: 2002. EPA-822-R-02-047 Washington, D.C. USEPA |
Spatial Representation: | Samples were collected from the San Joaquin River at Maze Road bridge near Modesto, California. |
Temporal Representation: | Samples were collected between April 2001 and August 2001. Samples were collected at weekly intervals. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. In accordance with section 6.1.4 of the Listing Policy, data from major monitoring programs in California and Published USGS reports are considered of adequate quality. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7962 |
LOE ID: | 6587 |
Pollutant: | Ammonia |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 24 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 24 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation guideline for Ammonia. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | Ammonia levels should not to exceed the calculated limit. Freshwater Aquatic Life Protection (Salmonid present) Criteria Maximum Concentration (CMC) (1-hour Average (mg N/L)) calculated based on the following formula: CMC = (0.275/(1 + 107.204-pH)) + (39.0/(1 + 10pH-7.204)) which incorporates pH (US EPA, 2005: Appendix C) |
Guideline Reference: | Compilation of Water Quality Goals |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from May 25 2000 to Jun 13 2002 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7963 |
LOE ID: | 6588 |
Pollutant: | Arsenic |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 21 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | None of the 21 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Arsenic. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | Arsenic levels should not exceed 10 ug/L (USEPA Primary MCL). |
Objective/Criterion Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology. 4304T |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Jun 7 2001 to Jun 26 2003 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7964 |
LOE ID: | 6592 |
Pollutant: | Cadmium |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 10 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 10 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Cadmium. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Dissolved Cadmium levels should not exceed the calculated limit based on the formula: Criteria Maximum Concentration (1-hour Average dissolved)=(EXP(1.128*LN(hardness)-3.6867))*(1.136672-(LN(hardness)*0.041838)) (CTR) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Compilation of Water Quality Goals | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Jun 7 2001 to Nov 21 2002 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7965 |
LOE ID: | 6593 |
Pollutant: | Copper |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 14 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | One of the 14 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Copper. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | California Toxics Rule 4-day average criteria for total Copper. |
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: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Feb 1 1986 to Jun 26 2003 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): | |
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LOE ID: | 6595 |
Pollutant: | Copper |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 17 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | None of the 17 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Copper. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | California Toxics Rule 4-day average criteria for dissolved Copper. |
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: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected monthly from November 2000 to November 2002. |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12241 |
LOE ID: | 21909 |
Pollutant: | DDE |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms |
Number of Samples: | 5 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | - Twenty (20) water samples were taken from the San Joaquin River at Maze Road bridge near Modesto, California in the Tuolumne River to Stanislaus River stretch from April 2001 through August of 2001. - These were averaged on a 30-day basis and resulted five samples. - One of the available five water samples exceeded the California Toxic Rule/USEPA (CTR/USEPA) criteria limit of 0.00059 ug/L for DDE (p,p'-DDE; o,p'-DDE) based on a human health carcinogenic risk level of 10-6 for consumption of water and aquatic organisms.- Fifteen water samples had high reporting limits hence the data could not be used in the analysis according to the Listing Policy, Section 6.5.1.1. |
Data Reference: | National Water Quality Assessment database, San Joaquin and Tulare Basins data |
Water Quality Objective/Criterion: | - Sacramento/San Joaquin River Basin Plan (CVRWQCB. 2007)Pesticides: Total identifiable persistent chlorinated hydrocarbon pesticides shall not be present in the water column at concentrations detectable within the accuracy of analytical methods approved by the Environmental Protection Agency or the Executive Officer.- California Toxics Rule Criteria (USEPA, 2000)Inland Surface Waters based on drinking water and aquatic organism consumption. The criteria are based on human health protection for carcinogenicity at 1-in-a-million risk level (30-day average) for DDE 0.00059 ug/L. |
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 |
Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected from the San Joaquin River (in the Tuolumne River to Stanislaus River stretch) at Maze Road bridge near Modesto, California. |
Temporal Representation: | Samples were collected between April 2001 and August 2001. Samples were collected at weekly intervals. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. In accordance with section 6.1.4 of the Listing Policy, data from major monitoring programs in California and Published USGS reports are considered of adequate quality. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14045 |
LOE ID: | 23346 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 63 |
Number of Exceedances: | 9 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | The Central Valley Regional Water Quality Control Board Surface Water Ambient Monitoring Program collected 63 samples from July 2002 to June 2006. Nine out of the 63 samples exceeded the evaluation objective. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. The objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 | |
Evaluation Guideline: | The USEPA E. Coli objective of 235/100 mL in any single sample (USEPA 1986). |
Guideline Reference: | Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 |
Spatial Representation: | Samples were collected at San Joaquin River at Maze Boulevard. |
Temporal Representation: | Sampling occurred from July 2002 to June 2006. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
Lines of Evidence (LOEs) for Decision ID 7966 |
LOE ID: | 6597 |
Pollutant: | Lead |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 17 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 17 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Lead. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Dissolved Lead levels should not exceed the calculated value based on the formula: Criteria Maximum Concentration (1-hour Average, dissolved)=(EXP(1.273*LN(hardness)-1.46))*(1.46203-(LN(hardness)*0.145712)) (CTR) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Compilation of Water Quality Goals | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Nov 30 2000 to Nov 21 2002 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14038 |
LOE ID: | 23422 |
Pollutant: | Lindane/gamma Hexachlorocyclohexane (gamma-HCH) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 20 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | - Twenty water samples were collected between April 2001 and August 2001 from the San Joaquin River at Maze Road bridge near Modesto California. This site lies in the Tuolumne River to Stanislaus River Reach of the San Joaquin River.
- None of the twenty water samples exceeded the CTR criteria of 0.019 mg/g for human consumption of water and organisms. |
Data Reference: | National Water Quality Assessment database, San Joaquin and Tulare Basins data |
Water Quality Objective/Criterion: | - Sacramento/San Joaquin River Basin Plan (CVRWQCB. 2007)Pesticides: Total identifiable persistent chlorinated hydrocarbon pesticides shall not be present in the water column at concentrations detectable within the accuracy of analytical methods approved by the Environmental Protection Agency or the Executive Officer.
- California Toxics Rule Criteria (USEPA, 2000) based on criteria for human consumption of water and organisms with a 10-6 risk for carcinogens of 0.019 mg/g. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected from the San Joaquin River at Maze Road bridge near Modesto California. This site lies in the Tuolumne River to Stanislaus River Reach of the San Joaquin River. |
Temporal Representation: | Samples were collected at weekly intervals between April 2001 and August 2001. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. U.S. Geological Survey, variously dated, National field manual for the collection of water-quality data: U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chaps. A1-A9, available online at http://pubs.water.usgs.gov/twri9A |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7967 |
LOE ID: | 6609 |
Pollutant: | Molybdenum |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 11 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 11 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Molybdenum. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Molybdenum levels should not to exceed 15 ug/L (Basin Plan Objective) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Compilation of Water Quality Goals | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Aug 27 1998 to Oct 30 2003 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7968 |
LOE ID: | 6611 |
Pollutant: | Nickel |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 17 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 17 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Nickel. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Dissolved Nickel levels should not exceed the calculated limit based on the formula: Criteria Maximum Concentration (1-hour Average, dissolved)=(EXP(0.846*LN(hardness)+2.255))*(0.998)(CTR) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Compilation of Water Quality Goals | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Feb 1 1986 to Jun 26 2003 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 7969 |
LOE ID: | 6612 |
Pollutant: | Nitrate as Nitrate (NO3) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 22 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 22 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation guideline for Nitrate-N. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | Nitrate-N levels should not to exceed 100 mg/L (USEPA National Ambient Water Quality Objective) |
Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology. 4304T |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Jun 29 2000 to Sep 27 2001 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 15929 |
LOE ID: | 23345 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Cold Freshwater Habitat |
Aquatic Life Use: | Cold Freshwater Habitat |
Number of Samples: | 252 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Two hundred and fifty-two samples were taken from the San Joaquin River between 2004 and 2006. Two of the two hundred and fifty-two samples fell below the Water Quality Objective for minimum dissolved oxygen content in surface water. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | From the Sacramento/San Joaquin River Basin Plan the (COLD) Cold Freshwater Habitat criterion is a Minimum Dissolved Oxygen content of 7mg/L. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected from the San Joaquin River at Maze Boulevard. |
Temporal Representation: | Samples were collected between June 2001 and June 2006. Samples were collected at bi-monthly and monthly intervals. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
Lines of Evidence (LOEs) for Decision ID 7970 |
LOE ID: | 6614 |
Pollutant: | Zinc |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 17 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | 0 of the 17 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Zinc. |
Data Reference: | San Joaquin River SWAMP Monitoring Data - Main-Stem San Joaquin River |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CRWQCB, 2006) Dissolved Zinc levels should not exceed the calculated limit based on the formula: Criteria Maximum Concentration=EXP((0.8473*LN(hardness))+0.884)*(0.978) (CTR) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Compilation of Water Quality Goals | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected at SJR @ Maze. |
Temporal Representation: | The samples were collected from Nov 30 2000 to Nov 21 2002 |
Environmental Conditions: | |
QAPP Information: | Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program Plan for the State of California's Surface Water Ambient Monitoring Program. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14041 |
LOE ID: | 23347 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 532 |
Number of Exceedances: | 32 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | The Central Valley Regional Water Quality Control Board Surface Water Ambient Monitoring Program collected 532 samples from October 1995 to June 2006. Thirty-two out of 532 samples were outside the acceptable range; twenty-five samples were higher than the acceptable range and seven samples were lower than the acceptable range. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | The pH of water shall not be depressed below 6.5,raised above 8.5, or changed at any time more than 0.5 units from normal ambient pH. |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | Measurement of pH within the range of 6.5 and 8.5 |
Guideline Reference: | |
Spatial Representation: | Samples were collected from San Joaquin River at Maze Boulevard. |
Temporal Representation: | Sampling occurred from October 1995 to June 2006. |
Environmental Conditions: | |
QAPP Information: | Data quality: Good. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
Lines of Evidence (LOEs) for Decision ID 15203 |
LOE ID: | 26523 |
Pollutant: | Temperature, water |
LOE Subgroup: | Pollutant-Water |
Matrix: | Not Specified |
Fraction: | None |
Beneficial Use: | Fish Migration |
Number of Samples: | 12 |
Number of Exceedances: | 9 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Stream temperatures were measured by CDFG using data loggers (Stowaways, Tidbits and Hobo Temp Pros). Monitoring occurred from 1997 to 2007 depending on the monitoring station, identified by a river mile. The 7DADM was recorded weekly for each river mile. The maximum 7DADM value was calculated for each year. Based on the data provided, 9 out of 12 maximum 7DADM values exceeded the <20oC criteria from 1997 to 2007. |
Data Reference: | Cover letter, data and information regarding elevated water temperatures in the San Joaquin, Merced, Stanislaus, and Tuolumne rivers |
Access and DSS database files of water temperature data, one each for the San Joaquin, Merced, Stanislaus, and Tuolumne rivers | |
Water Quality Objective/Criterion: | The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses.
In determining compliance with the water quality objectives for temperature, appropriate averaging period may be applies provided that beneficial uses will be fully protected. (Central Valley Regional Board Basin Plan, Pg. III-8.00, Water Quality Objectives) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | The guideline used was the 2003 US EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards (USEPA, 2003). The document includes recommended temperature criteria for salmon and trout based on different life stages. The recommended temperature for salmon and trout migration is <20oC for a 7DADM. The adult migration life stage occurs from river mile 80 (Gardner Cove) to river mile 84 (above West Side Lift Canal). This life stage occurs during Julian weeks 11 through 24, which is approximately March 15th through June 15th. |
Guideline Reference: | EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. U.S. Environmental Protection Agency Region 10 Office of Water, Seattle, WA. |
Spatial Representation: | The migration life stage occurs from river mile 80 (Gardner Cove) to river mile 84 (above West Side Lift Canal). Stream temperatures were monitored at the following stream location during the migration life stage: River Miles 80 (Gardner Cove), 81 (Old Fishermans Club), 83 (above Tuolumne River), and 84 (above West Side Lift Canal). |
Temporal Representation: | The migration life stageoccurs from river mile 80 (Gardner Cove) to river mile 84 (above West Side Lift Canal). Data was collected during this life stage on a continuous basis (hourly intervals) from 1997 to 2007, depending on the station and year monitored. Refer to the CDFG 2007 report (Gordus, 2007) for specific years for each location. |
Environmental Conditions: | |
QAPP Information: | Data is supported by a Quality Assurance Project Plan (QAPP) pursuant to the requirements of 40 CFR 31.45 and are acceptable for use in developing the section 303(d) list. |
QAPP Information Reference(s): | |
| |
LOE ID: | 26229 |
Pollutant: | Temperature, water |
LOE Subgroup: | Pollutant-Water |
Matrix: | Not Specified |
Fraction: | None |
Beneficial Use: | Fish Migration |
Number of Samples: | 13 |
Number of Exceedances: | 13 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Stream temperatures were measured by California Department of Fish and Game (CDFG) using data loggers (Stowaways, Tidbits and Hobo Temp Pros). Monitoring occurred from 1996 to 2006 depending on the monitoring station, identified by a river mile. The 7DADM was recorded weekly for each river mile. The maximum 7DADM value was calculated for each year. Based on the data provided, 13 out of 13 maximum 7DADM values exceeded the <20 degrees C criteria from 1996 to 2006. |
Data Reference: | Cover letter, data and information regarding elevated water temperatures in the San Joaquin, Merced, Stanislaus, and Tuolumne rivers |
Access and DSS database files of water temperature data, one each for the San Joaquin, Merced, Stanislaus, and Tuolumne rivers | |
Water Quality Objective/Criterion: | The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses.
In determining compliance with the water quality objectives for temperature, appropriate averaging period may be applies provided that beneficial uses will be fully protected. (Central Valley Regional Board Basin Plan, Pg. III-8.00, Water Quality Objectives) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | The guideline used was the 2003 US EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards (USEPA, 2003). The document includes recommended temperature criteria for salmon and trout based on different life stages. The recommended temperature for salmon and trout adult migration is <20 degrees C for a 7DADM. The adult migration life stage occurs from river mile river mile 80 (Gardner Cove) to river mile 84 (above West Side Lift Canal). This life stage occurs during Julian weeks 36 through 43, which is approximately September 1st through October 31st. |
Guideline Reference: | EPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards. EPA 910-B-03-002. U.S. Environmental Protection Agency Region 10 Office of Water, Seattle, WA. |
Spatial Representation: | The adult migration life stage occurs from river mile 80 (Gardner Cove) to river mile 84 (above West Side Lift Canal). Stream temperatures were monitored at the following stream locations during the adult migration life stage: River Miles 80 (Gardner Cove), 81 (Old Fishermans Club), 83 (above Tuolumne River), and 84 (above West Side Lift Canal). |
Temporal Representation: | The adult migration life stage occurs during Julian weeks 36 through 43, which is approximately September 1st through October 31st. Data was collected during this life stage on a continuous basis (hourly intervals) from 1996 to 2006, depending on the station and year monitored. Refer to the CDFG 2007 report (Gordus, 2007) for specific years for each location. |
Environmental Conditions: | |
QAPP Information: | Data is supported by a Quality Assurance Project Plan (QAPP) pursuant to the requirements of 40 CFR 31.45 and are acceptable for use in developing the section 303(d) list. |
QAPP Information Reference(s): | |
| |
LOE ID: | 26524 |
Pollutant: | Temperature, water |
LOE Subgroup: | Pollutant-Water |
Matrix: | Not Specified |
Fraction: | None |
Beneficial Use: | Cold Freshwater Habitat |
Aquatic Life Use: | Fish Migration |
Number of Samples: | 0 |
Number of Exceedances: | 0 |
Data and Information Type: | QUALITATIVE (EVALUATED) ASSESSMENT - UNSPECIFIED |
Data Used to Assess Water Quality: | The San Joaquin watershed had a large spring-run of chinook salmon, along with a much smaller fall-run (Hatton and Clark, 1942). By about 1920, chinook salmon populations declined due to changes within the upper San Joaquin watershed. Many changes such as dams, water diversion, mining and harvest have been suggested for their decline. By 1950s salmon became extinct in the mainstem San Joaquin River and populations of less than 500 were a common occurrence in the Merced, Tuolumne and Stanislaus Rivers.
However, the gradual decline in salmon populations has been tied to the unsuitable high water temperatures, which increases juveniles susceptibility to disease, predation and accumulation of contaminants (Myrick and Cech 2001). Since 1952 there have been several peak escapement trends, but overall, the trend over time to 2006 has been declining dramatically with the 1952 peak of over 8,000 salmon to 1,000 salmon in 2006. Steelhead, described by Latta (1929, 1949) and other authors write about good numbers and casually being taken by indigeneous peoples. Now the runs are extinct in the mainstem and are listed as a Federally Threatened species. |
Data Reference: | |
Water Quality Objective/Criterion: | The natural receiving water temperature of intrastate waters shall not be altered unless it can be demonstrated to the satisfaction of the Regional Water Board that such alteration in temperature does not adversely affect beneficial uses.
In determining compliance with the water quality objectives for temperature, appropriate averaging period may be applies provided that beneficial uses will be fully protected. (Central Valley Regional Board Basin Plan, Pg. III-8.00, Water Quality Objectives) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | In the absence of necessary data to interpret numeric water quality objectives, recent temperature monitoring data shall be compared to the temperature requirements of aquatic life in the water segment. In many cases, fisheries, particularly salmonids, represent the beneficial uses most sensitive to temperature. Information on current and historic conditions and distribution of sensitive beneficial uses (e.g., fishery resources) in the water segment is necessary, as well as recent temperature data reflective of conditions experienced by the most sensitive life stage of the aquatic life species. If temperature data from past (historic) periods corresponding to times when the beneficial use was fully supported are not available, information about presence/absence or abundance of sensitive aquatic life species shall be used to infer past (historic) temperature conditions if loss of habitat, diversions, toxic spills, and other factors are also considered (SWRCB, 2004). |
Guideline Reference: | |
Spatial Representation: | San Joaquin River |
Temporal Representation: | Information referenced from year 1920 through 2006. |
Environmental Conditions: | |
QAPP Information: | San Joaquin Fall-Run Chinook Salmon and Steelhead Rainbow Trout Historical Population Trend Summary. Dean Marston. September 2007. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 6957 |
LOE ID: | 4547 |
Pollutant: | Unknown 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: | 22688 |
Pollutant: | Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | Total |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 0 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | The one sample tested with Pimephales promelas was not toxic nor did it violate the narrative toxicity objective. |
Data Reference: | Monitoring Data from the Surface Water Ambient Monitoring Program (SWAMP), San Joaquin River Basin - 2007 Data Review |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. (CVRWQCB, 2007) |
Objective/Criterion Reference: | Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
Evaluation Guideline: | Statistically significant difference from control using a Fisher's Exact test with 4-day acute-style toxicity tests. |
Guideline Reference: | Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fifth Edition. U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-821-R-02-012 |
Spatial Representation: | The sample was collected from San Joaquin River at Maze. |
Temporal Representation: | The sample was collected in October 2000 |
Environmental Conditions: | |
QAPP Information: | Data quality: Excellent. Monitoring was conducted in accordance with the State Water Resources Control Board's Quality Assurance Program 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) |
Lines of Evidence (LOEs) for Decision ID 6954 |
LOE ID: | 4544 |
Pollutant: | DDT |
LOE Subgroup: | Pollutant-Tissue |
Matrix: | Tissue |
Fraction: | Not Recorded |
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms |
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: | Unspecified |
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) |
Evaluation Guideline: | Unspecified |
Guideline Reference: | Placeholder reference pre-2006 303(d) |
Spatial Representation: | Unspecified |
Temporal Representation: | Unspecified |
Environmental Conditions: | Unspecified |
QAPP Information: | Unspecified |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 6955 |
LOE ID: | 4545 |
Pollutant: | Group A Pesticides |
LOE Subgroup: | Pollutant-Tissue |
Matrix: | Tissue |
Fraction: | Not Recorded |
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms |
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: | Unspecified |
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) |
Evaluation Guideline: | Unspecified |
Guideline Reference: | Placeholder reference pre-2006 303(d) |
Spatial Representation: | Unspecified |
Temporal Representation: | Unspecified |
Environmental Conditions: | Unspecified |
QAPP Information: | Unspecified |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 6956 |
LOE ID: | 4546 |
Pollutant: | Mercury |
LOE Subgroup: | Pollutant-Tissue |
Matrix: | Tissue |
Fraction: | Not Recorded |
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms |
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: | Unspecified |
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) |
Evaluation Guideline: | Unspecified |
Guideline Reference: | Placeholder reference pre-2006 303(d) |
Spatial Representation: | Unspecified |
Temporal Representation: | Unspecified |
Environmental Conditions: | Unspecified |
QAPP Information: | Unspecified |
QAPP Information Reference(s): |