|
LOE ID: |
2668 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Not Specified |
Fraction: |
None |
|
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: |
Data was obtained from the USGS NWISweb data and SRWP database. None of the concentrations from the samples from this site exceeded the CDFG criteria; the SRWP samples were non-detects. (USGS, 2005), (LWA, 2002b). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. Discharges shall not result in pesticide concentrations in bottom sediments or aquatic life that adversely affect beneficial uses. 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. Waters designated for use as domestic or municipal supply (MUN) shall not contain concentrations of pesticides in excess of the Maximum Contaminant Levels set forth in California Code of Regulations, Title 22, Division 4, Chapter 15. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
CDFG Hazard Assessment Criteria - 14 ng/L 4-day average and 25 ng/L 1-hour average |
Guideline Reference: |
Placeholder reference 2006 303(d) |
|
Spatial Representation: |
Samples taken at Colusa Basin Drain at Road 99E near Knights Landing. |
Temporal Representation: |
Samples taken from 1996-2000. |
Environmental Conditions: |
|
QAPP Information: |
Data from USGS reports are considered of adequate quality per section 6.1.4 of the Policy. Data from the Sacramento River Watershed Program (SRWP) Waters Quality Database (Larry Walker Associates, April 2002) are considered adequate |
QAPP Information Reference(s): |
|
|
LOE ID: |
21788 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
12 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Eighteen water samples were collected from Colusa Basin Drain between January and February 2003, representing twelve calculated 4-day average concentrations and eighteen 1-hour average concentrations. Zero of the twelve calculated 4-day average concentrations exceeded the 4-day average criterion of 0.015 ug/L. Zero of the eighteen 1-hour average concentrations exceeded the 1-hour average criterion of 0.025 ug/L. |
Data Reference: |
Zipped file of Central Valley Waterways Pesticide TMDL monitoring data spreadsheets and reports |
|
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 (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: |
California Department of Fish and Game Hazard Assessment chlorpyrifos criteria: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average). |
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 Colusa Basin Drain near Knights Landing. |
Temporal Representation: |
Samples were collected daily during two storm events in January and March 2003. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Calanchini, H. 2006. Quality Assurance Project Plan, Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. John Muir Institute of the Environment, U.C. Davis. Davis, CA. |
QAPP Information Reference(s): |
Quality Assurance Project Plan. Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. Final. SWAMP Project ID 02TM5001 (Revision 0.0). John Muir Institute of the Environment, U.C. Davis. Davis, CA. January 26, 2006 |
|
|
LOE ID: |
21789 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Fourteen water samples were collected from Colusa Basin Drain in January and February 2004, representing eight calculated 4-day average concentrations and fourteen 1-hour average concentrations. Zero of the eight calculated 4-day average concentrations exceeded the 4-day average criterion of 0.015 ug/L. Zero of the fourteen 1-hour average concentrations exceeded the 1-hour average criterion of 0.025 ug/L. |
Data Reference: |
Zipped file of Central Valley Waterways Pesticide TMDL monitoring data spreadsheets and reports |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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: |
California Department of Fish and Game Hazard Assessment chlorpyrifos criteria for freshwater aquatic life protection: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average), not to be exceeded more than once every three years. |
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 Colusa Basin Drain near KnightÂ’s Landing |
Temporal Representation: |
Samples were collected daily during three storm events in January and February 2004. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Calanchini, H. 2006. Quality Assurance Project Plan, Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. John Muir Institute of the Environment, U.C. Davis. Davis, CA. |
QAPP Information Reference(s): |
Quality Assurance Project Plan. Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. Final. SWAMP Project ID 02TM5001 (Revision 0.0). John Muir Institute of the Environment, U.C. Davis. Davis, CA. January 26, 2006 |
|
|
LOE ID: |
21790 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Eleven water samples were collected from Colusa Basin Drain in February 2005, representing eight calculated 4-day average concentrations and eleven 1-hour average concentrations. Zero of the eight calculated 4-day average concentrations exceeded the 4-day average criterion of 0.025 ug/L. Zero of the eleven1-hour average concentrations exceeded the 1-hour average criterion of 0.015 ug/L. |
Data Reference: |
Zipped file of Central Valley Waterways Pesticide TMDL monitoring data spreadsheets and reports |
|
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. |
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: |
California Department of Fish and Game Hazard Assessment chlorpyrifos criteria: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average). |
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: |
Water samples were collected from Colusa Basin Drain near Knights Landing. |
Temporal Representation: |
Samples were collected daily during storms between 15 and 25 February, 2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Calanchini, H. 2006. Quality Assurance Project Plan, Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. John Muir Institute of the Environment, U.C. Davis. Davis, CA. |
QAPP Information Reference(s): |
Quality Assurance Project Plan. Sacramento and San Joaquin River Basins and Sacramento-San Joaquin Delta TMDL Monitoring for Organophosphorus Pesticides and Other Pesticides Identified as Posing a High Risk to Surface Waters. Final. SWAMP Project ID 02TM5001 (Revision 0.0). John Muir Institute of the Environment, U.C. Davis. Davis, CA. January 26, 2006 |
|
|
LOE ID: |
21793 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Ten water samples were collected from Colusa Basin Drain between December 2004 and February 2005, representing six calculated 4-day average concentrations and ten 1-hour average concentrations. Zero of the six calculated 4-day average concentrations exceeded the 4-day average criterion of 0.015 ug/L. Zero of the ten 1-hour average concentrations exceeded the 1-hour average criterion of 0.025 ug/L. |
Data Reference: |
Report and data files for pesticides in the Sacramento River, Winter 2005 |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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: |
California Department of Fish and Game Hazard Assessment chlorpyrifos criteria for freshwater aquatic life protection: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average), not to be exceeded more than once every three years. |
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 two locations: at Colusa Basin Drain 5, and at County Road 99E. |
Temporal Representation: |
One sample was collected on 12/4/2004, and the other samples were collected once or twice a day from between 26 January 2005 and 1 February 2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. All sampling, analysis and QA/QC followed CDPR protocols described in Guo and Kelley, 2004. |
QAPP Information Reference(s): |
Standard Operating Procedure for Conducting Surface Water Monitoring for Pesticides |
|
Protocol for event-based monitoring of organophosphorus insecticides and preemergent herbicides in the Sacramento Valley, winter 2004-2005. California Department of Pesticide Regulation. Sacramento, CA |
|
|
LOE ID: |
2669 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Wildlife Habitat |
|
Number of Samples: |
14 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Isokinetic, depth integrated water samples were collected at 6-10 equally spaced points across the channel width with a USGS D-77 sampler using the equal-width-increment method (EWI). Depth integrated samples were collected in 3-L (liter) PTFE (polytetrafluoroethylene) bottles strapped to a weighted cage and lowered by line at three points across the width of the channel.
Fourteen samples were taken; none of the samples exceeded the CDFG criteria. (Calanchini, 2004).Immediately after collection, sample bottles were placed on ice and delivered to CDFA Center for Analytical Chemistry in Sacramento. Samples were usually delivered on the same day and no later than 48 hours after collection. |
Data Reference: |
Placeholder reference 2006 303(d) |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. Discharges shall not result in pesticide concentrations in bottom sediments or aquatic life that adversely affect beneficial uses. 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. Pesticide concentrations shall not exceed the lowest levels technically and economically achievable. Waters designated for use as domestic or municipal supply (MUN) shall not contain concentrations of pesticides in excess of the Maximum Contaminant Levels set forth in California Code of Regulations, Title 22, Division 4, Chapter 15. |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
CDFG Hazard Assessment Criteria - 14 ng/L 4-day average and 25 ng/L 1-hour average |
Guideline Reference: |
Placeholder reference 2006 303(d) |
|
Spatial Representation: |
Seven sites were monitored in the Sacramento River Basin; samples were collected at the Colusa Basin Drain near Knights Landing. Sampling frequency for each storm event was one sample/day was taken for 7days. |
Temporal Representation: |
Two storm events were sampled for the 2004 TMDL project in the Sacramento River Basin. The first storm event (Storm 1) was the period 28 January to 6 February 2004. The second storm event (Storm 2) was the period 15-23 February, 2004. For storm 1 sampling was conducted from 28 January to 3 February. For storm 2 the sampling period began on 16 February and extended until 22 February. |
Environmental Conditions: |
Discharge was measured in conjunction with water collection using a Price Type AA current meter, a USGS bridge board and sounding reel, following standard USGS current-meter methods. Instantaneous loads were calculated by multiplying the discharge with the measured concentration of chlorpyrifos for the appropriate sampling period (24 hours). |
QAPP Information: |
Sample quality control was measured through collection of sequential duplicates (n=8), blanks (n=5) and matrix spikes (n=5). The relative percent difference (RPD) between environmental and duplicate sample concentrations of chlorpyrifos ranged from 0-104%. |
QAPP Information Reference(s): |
|
|
LOE ID: |
21792 |
|
Pollutant: |
Chlorpyrifos |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Twenty-seven water samples were collected from Colusa Basin Drain between June 1999 and May 2002, representing one calculated 4-day average concentration and one 1-hour average concentration. Twenty-six of the water samples had a method detection limit (0.05 ug/L) that is higher than the 4-day average criterion (0.015 ug/L) and, therefore, these twenty-six water samples were not included in this assessment. The single calculated 4-day average concentration exceeded the 4-day average criterion of 0.015 ug/L. The single usable1-hour average concentration exceeded the 1-hour average criterion of 0.025 ug/L. |
Data Reference: |
Sacramento River watershed program (SRWP) water quality database. Davis, CA |
|
Sacramento River Watershed Program Annual Reports for 1999-2000, 2000-2001, 2001-2002, 2002-2003, and 2003-2004; and BDAT data 1998-2003 |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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 chlorpyrifos criteria for freshwater aquatic life protection: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average), not to be exceeded more than once every three years. |
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 |
|
Central Valley Regional Water Quality Control Board. Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board - Central Valley Region |
|
Spatial Representation: |
Samples were collected from Colusa Basin Drain above Knights Landing. |
Temporal Representation: |
Samples were collected monthly between June 1999 and May 2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Monitoring was conducted in accordance with the Quality Assurance Project Plan for Monitoring prepared for the Sacramento River Watershed Program (SRWP 1999a, 1999b, 2000b, 2001b, 2002b, 2003b, 2006). |
QAPP Information Reference(s): |
|
|
LOE ID: |
21791 |
|
Pollutant: |
Chlorpyrifos |
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: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Twelve water samples were collected from Colusa Basin Drain between March and September 2006, representing eleven calculated 4-day average concentrations and twelve 1-hour average concentrations. Zero of the eleven calculated 4-day average concentrations exceeded the 4-day average criterion of 0.015 ug/L. Zero of the twelve 1-hour average concentrations exceeded the 1-hour average criterion of 0.025 ug/L. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. |
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 chlorpyrifos criteria: 0.015 ug/L (4-day average) and 0.025 ug/L (1-hour average). |
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 Colusa Basin Drain near Maxwell Road. |
Temporal Representation: |
Samples were collected between March and September 2006 at variable intervals (monthly or biweekly). |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
DECISION ID |
14304 |
|
Pollutant: |
DDT |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.4 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. None of 2 composite fish samples exceeded the OEHHA FCG for DDT of 21 ug/kg, and do not exceed the narrative toxicity objective, and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14304 |
|
LOE ID: |
26075 |
|
Pollutant: |
DDT |
LOE Subgroup: |
Pollutant-Tissue |
Matrix: |
Tissue |
Fraction: |
Fish whole body |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
|
Number of Exceedances: |
|
|
Data and Information Type: |
Fish tissue analysis |
Data Used to Assess Water Quality: |
White Catfish and Carp were taken from Colusa Basin Drain on 25 August 2005 for the Sacramento River Watershed Program and were analyzed for different forms of DDT.
The forms of DDT analyzed included: DDT (o,pÂ’), DDT (p,pÂ’), DDD (o,pÂ’), DDD (p,pÂ’), DDE (o,pÂ’), DDE (p,pÂ’), DDMU (p,pÂ’).
Two composite samples exceeded the OEHHA screening value of 21 ug/kg for total DDT in fish tissue. One composite was for White catfish (44.009 ug/kg) and the second composite was for Carp (65.903 ug/kg). |
Data Reference: |
Sacramento River Watershed Program Annual Reports for 1999-2000, 2000-2001, 2001-2002, 2002-2003, and 2003-2004; and BDAT data 1998-2003 |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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: |
OEHHA 2008 Fish Contaminant Goals (FCG) are based on cancer risk assessments using an 8-Ounce/Week (prior to cooking) consumption rate of 32 g/day. The FCG used as a screening value for total DDT (with a cancer slope factor of 0.34 mg/kg/day) should be less than 21 ug/kg. |
Guideline Reference: |
Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene |
|
Spatial Representation: |
Fish were collected from the Colusa Basin Drain at Road 99E. |
Temporal Representation: |
Fish were collected on 25 August 2005. |
Environmental Conditions: |
|
QAPP Information: |
Monitoring was conducted in accordance with Sacramento River Watershed Program QAPP requirements (SRWP, 2001). |
QAPP Information Reference(s): |
|
DECISION ID |
14782 |
|
Pollutant: |
Diuron |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant. One of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. One of 33 samples exceeded the narrative toxicity objective and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14782 |
|
LOE ID: |
21764 |
|
Pollutant: |
Diuron |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
4 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Four water samples were collected along various points of Colusa Basin Drain in 2006.1 of 4 concentrations exceeded the maximum concentration of 1.3 ug/L. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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: |
The Board will use the best available technical information to evaluate compliance with the narrative objectives. Other available technical information on the pesticide (such as Lowest Observed Effect Concentrations and No Observed Effect Levels), the water bodies and organisms involved will be evaluated to determine if lower concentrations are required to meet the narrative objectives. (CRWQCB, 2006).The 96 hour EC50 for the most sensitive species, Chlorella pyrenoidosa is 1.3 ug/L (ECOTOX, 2008 and Ma et al. 2001). |
Guideline Reference: |
Ecotox database, http://cfpub.epa.gov/ecotox/ |
|
Acute toxicity of 33 herbicides to the green alga Chlorella pyrenoidosa. Bulletin of Environmental Contamination and Toxicology. 66:536-541. Springer-Verlag New York Inc. |
|
Spatial Representation: |
Two samples were collected at Colusa Basin Drain above Knights Landing (CBD1) (38.8125, -121.7731), one sample was collected at Colusa Basin Drain #5 (CBD5) (39.1833, -122.0500), and one sample was collected at Colusa Basin Drain near Maxwell Road (38.8121, -121.7741). |
Temporal Representation: |
Samples were collected 03/01/2006 (one sample), 08/01/2006 (one sample), and 09/20/2006 (two samples).Colusa Basin Drain and Colusa Drain are terms used synonymously. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
|
LOE ID: |
21766 |
|
Pollutant: |
Diuron |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
10 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Ten water samples were collected from Colusa Basin Drain in late 2004- early 2005.0 of 10 sample concentration samples exceeded the maximum concentration of 1.3ug/L. |
Data Reference: |
Report and data files for pesticides in the Sacramento River, Winter 2005 |
|
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: |
The Board will use the best available technical information to evaluate compliance with the narrative objectives. Other available technical information on the pesticide (such as Lowest Observed Effect Concentrations and No Observed Effect Levels), the water bodies and organisms involved will be evaluated to determine if lower concentrations are required to meet the narrative objectives. (CRWQCB, 2006).The 96 hour EC50 for the most sensitive species, Chlorella pyrenoidosa is 1.3 ug/L (ECOTOX, 2008 and Ma et al. 2001). |
Guideline Reference: |
Ecotox database, http://cfpub.epa.gov/ecotox/ |
|
Acute toxicity of 33 herbicides to the green alga Chlorella pyrenoidosa. Bulletin of Environmental Contamination and Toxicology. 66:536-541. Springer-Verlag New York Inc. |
|
Spatial Representation: |
Colusa Basin Drain at County Road 99E (38.8122, -121.7732) |
Temporal Representation: |
One sample was collected on 12/4/2004, and the other samples were collected once or twice a day from 1/26/200-2/1/2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good.. |
QAPP Information Reference(s): |
Standard Operating Procedure for Conducting Surface Water Monitoring for Pesticides |
|
|
LOE ID: |
21765 |
|
Pollutant: |
Diuron |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
19 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Nineteen water samples were collected from January 2000 through May 2002.0 of 19 concentrations exceeded the maximum concentration of 1.3ug/L. |
Data Reference: |
Sacramento River watershed program (SRWP) water quality database. Davis, CA |
|
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: |
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 Board will use the best available technical information to evaluate compliance with the narrative objectives. Other available technical information on the pesticide (such as Lowest Observed Effect Concentrations and No Observed Effect Levels), the water bodies and organisms involved will be evaluated to determine if lower concentrations are required to meet the narrative objectives. (CRWQCB, 2006).The 96 hour EC50 for the most sensitive species, Chlorella pyrenoidosa is 1.3 ug/L (ECOTOX, 2008 and Ma et al. 2001). |
Guideline Reference: |
Ecotox database, http://cfpub.epa.gov/ecotox/ |
|
Acute toxicity of 33 herbicides to the green alga Chlorella pyrenoidosa. Bulletin of Environmental Contamination and Toxicology. 66:536-541. Springer-Verlag New York Inc. |
|
Spatial Representation: |
Colusa Basin Drain (UTM Zone 10 NAD83 606794, 4296411) |
Temporal Representation: |
Samples were collected 1/19/2000, 2/15/2000, 3/21/2000, 4/18/2000, 5/16/2000, 7/21/2000, 9/20/2000, 10/18/2000, 10/30/2000, 1/27/2001, 2/7/2001, 4/9/2001, 5/29/2001, 6/22/2001, 9/25/2001, 11/4/2001, 2/22/2002, 3/7/2002, and 5/15/2002. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Monitoring was conducted in accordance with the Quality Assurance Project Plan for Monitoring prepared for the Sacramento River Watershed Program (SRWP 1999a, 1999b, 2000b, 2001b, 2002b, 2003b, 2006). |
QAPP Information Reference(s): |
|
DECISION ID |
14305 |
|
Pollutant: |
Propanil (DCPA mono- and di-acid degrad) |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. One of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. One of 38 water samples exceeded the 5-day EC50 tested for freshwater diatom (Navicula pelliculosa) of 16 µg/L, which does not exceed the narrative toxicity objective, and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14305 |
|
LOE ID: |
26077 |
|
Pollutant: |
Propanil (DCPA mono- and di-acid degrad) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Warm Freshwater Habitat |
|
Number of Samples: |
38 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Thirty-eight water samples were collected from Colusa Basin Drain between April and July 2001.
One of the 38 water samples had a propanil concentration that exceeded the Evaluation Guideline value of 16 ug/L. |
Data Reference: |
Surface Water database (SWDB) for Central Valley waterbodies, 2000-2005 |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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: |
Where valid testing has developed 96 hour LC50 values for aquatic organisms (the concentration that kills one half of the test organisms in 96 hours), the Board will consider one tenth of this value for the most sensitive species tested as the upper limit (daily maximum) for the protection of aquatic life. Other available technical information on the pesticide (such as Lowest Observed Effect Concentrations and No Observed Effect Levels), the water bodies and the organisms involved will be evaluated to determine if lower concentrations are required to meet the narrative objectives (CVRWQCB, 2007). The 5-day EC50 tested for freshwater diatom (Navicula pelliculosa) is 16 ug/L. |
Guideline 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 |
|
Ecotoxicity database. U.S. Environmental Protection Agency, Office of Pesticide Programs |
|
Spatial Representation: |
Water samples were collected from Colusa Basin Drain #5. |
Temporal Representation: |
Water samples were collected at irregular intervals, including twice per day, weekly, monthly, between April and July 2001. |
Environmental Conditions: |
|
QAPP Information: |
Data Quality: Good. Minimum requirements for the 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 DPRÂ’s webpage at http://www.cdpr.ca.gov/docs/emon/surfwtr/caps/req.htm. |
QAPP Information Reference(s): |
|
DECISION ID |
14778 |
|
Pollutant: |
pH (high) |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.
One lines of evidence are available in the administrative record to assess this pollutant. Two of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Two of 74 samples had pH values higher than the pH objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14778 |
|
LOE ID: |
21785 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
74 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
The Sacramento Valley Water Quality Coalition and the California Rice Commission collected 74 samples from September 2004 to October 2006. Two of the 74 samples did not meet the evaluation objective and had a pH higher than 8.5. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. A high pH value is greater than 8.5 |
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Colusa Basin Drain at four locations: Colusa Basin Drain #5, Above Knights Landing, At Highway 162, and Near Maxwell Road. |
Temporal Representation: |
Sampling occurred from September 2004 to October 2006 |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
DECISION ID |
14779 |
|
Pollutant: |
pH (low) |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.
One lines of evidence are available in the administrative record to assess this pollutant. Four of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Four of 74 samples had pH values lower than the pH objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14779 |
|
LOE ID: |
21786 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
74 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
The Sacramento Valley Water Quality Coalition and the California Rice Commission collected 74 samples from September 2004 to October 2006. Four of the 74 samples did not meet the evaluation objective and had a pH lower than 6.5. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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. A low pH value is lower than 6.5 |
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Colusa Basin Drain at four locations: Colusa Basin Drain #5, Above Knights Landing, At Highway 162, and Near Maxwell Road. |
Temporal Representation: |
Sampling occurred from September 2004 to October 2006 |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements (CVRWQCB, 2003) |
QAPP Information Reference(s): |
|
DECISION ID |
14303 |
|
Pollutant: |
Dieldrin |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.5 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. Two of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Two of 2 composite fish samples exceed the OEHHA FCG for dieldrin of 0.46 ug/kg, which exceeds the narrative toxicity objective and, therefore, exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 14303 |
|
LOE ID: |
26076 |
|
Pollutant: |
Dieldrin |
LOE Subgroup: |
Pollutant-Tissue |
Matrix: |
Tissue |
Fraction: |
Fish whole body |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
2 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Fish tissue analysis |
Data Used to Assess Water Quality: |
Fish samples (White catfish and Carp) were taken from Colusa Basin Drain on 25 August 2005 and were analyzed for Dieldrin.
Two composite samples exceeded the OEHHA screening value of 0.46 ug/kg for Dieldrin in fish tissue. One composite was for White catfish (0.7 ug/kg) and the second composite was for Carp (1.14 ug/kg). |
Data Reference: |
Sacramento River Watershed Program Annual Reports for 1999-2000, 2000-2001, 2001-2002, 2002-2003, and 2003-2004; and BDAT data 1998-2003 |
|
Water Quality Objective/Criterion: |
No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. |
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: |
OEHHA 2008 Fish Contaminant Goals (FCG) are based on OEHHA 2008 Fish Contaminant Goals (FCG) are based on cancer risk assessments using an 8-Ounce/Week (prior to cooking) consumption rate of 32 g/day. The FCG used as a screening value for Dieldrin (with a cancer slope factor of 16 mg/kg/day) should be less than 0.46 ug/kg. |
Guideline Reference: |
Development of Fish Contaminant Goals and Advisory Tissue Levels for Common Contaminants in California Sport Fish: Chlordane, DDTs, Dieldrin, Methylmercury, PCBs, Selenium, and Toxaphene |
|
Spatial Representation: |
Fish were collected from the Colusa Basin Drain at Road 99E. |
Temporal Representation: |
Fish were collected on 25 August 2005. |
Environmental Conditions: |
|
QAPP Information: |
Monitoring was conducted in accordance with Sacramento River Watershed Program QAPP requirements (SRWP, 2001). |
QAPP Information Reference(s): |
|
DECISION ID |
13066 |
|
Pollutant: |
Escherichia coli (E. Coli) |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Source Unknown |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. The recommendation is based on staff findings that 6 of 11 available concentrations exceeded the USEPA's E. coli guideline of 235/100 mL and, therefore, the narrative toxicity objective, and this exceeds the allowable frequency using Table 3.2 of the Listing Policy. Table 3.2 of the listing policy recommends listing if a sample size of 11 has 5 or more samples that exceed the evaluation criteria.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 13066 |
|
LOE ID: |
21798 |
|
Pollutant: |
Escherichia coli (E. Coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
11 |
Number of Exceedances: |
6 |
|
Data and Information Type: |
Water column surveys (e.g. fecal coliform) |
Data Used to Assess Water Quality: |
Under the Irrigated Lands Reporting Program, the Sac Valley Water Quality Coalition collected 11 water samples from Colusa Basin Drain, between May 2005 and September 2006. Six of 11 samples exceeded the evaluation objective. |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
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 guideline 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: |
Water samples were collected from two locations in the Colusa Basin Drain: above Knights Landing, and near Maxwell Road. |
Temporal Representation: |
Sampling occurred monthly between 3 May 2005 and 3 August 2005, twice in March 2006, and monthly between 24 May 2006 and 19 September 2006. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements. |
QAPP Information Reference(s): |
|
DECISION ID |
13069 |
|
Pollutant: |
Low Dissolved Oxygen |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Source Unknown |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Thirty of 73 water samples collected from Colusa Basin Drain exceed the Basin Plan minimum dissolved oxygen objective for COLD and SPWN beneficial uses of 7 mg/l, and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 13069 |
|
LOE ID: |
21752 |
|
Pollutant: |
Low Dissolved Oxygen |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
73 |
Number of Exceedances: |
30 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Thirty of 73 water samples collected under the Irrigated Lands Program from Colusa Basin Drain between September 2004 and October 2006 exceed the Basin Plan minimum dissolved oxygen objective for COLD and SPWN (7 mg/L), and 5 of the 73 water samples also exceed the Basin Plan minimum dissolved oxygen objective for WARM beneficial uses (5 mg/L). |
Data Reference: |
Revised Draft of the 2007 Review of the Monitoring Data for the Irrigated Lands Regulatory Conditional Waiver Program |
|
Monitoring and Reporting Program, Order Nos. R5-2003-0826, R5-2005-0833, and R5-2008-0005 for Coalition Groups Under Resolution No. R5-2003-0105, Conditional Waiver of Waste Discharge Requirements for Discharges From Irrigated Lands Within the Central Valley Region |
|
Water Quality Objective/Criterion: |
The Basin Plan minimum dissolved oxygen objective for COLD and SPWN beneficial uses is 7 mg/l, and the Basin Plan minimum dissolved oxygen objective for WARM beneficial uses is 5 mg/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: |
Water samples were collected from Colusa Basin Drain at several locations, including:near Maxwell Road, above Knight Landing, at Highway 162, and at "Colusa Basin Drain #5 (CBD5)". |
Temporal Representation: |
Samples were collected between September 2004 and October 2006 at irregular intervals, including every other day, weekly, every other week, and monthly, with gaps of up to 6 months at some locations. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good. Monitoring was conducted in accordance with Central Valley Water Board Monitoring and Reporting Program (order number R5-2003-0826) requirements. |
QAPP Information Reference(s): |
|
DECISION ID |
13075 |
|
Pollutant: |
Mercury |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Resource Extraction |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under sections 3.1 and 3.5 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Three lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Three of 34 fish tissue samples exceed the USEPA fish tissue criterion for human health, and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 13075 |
|
LOE ID: |
22601 |
|
Pollutant: |
Mercury |
LOE Subgroup: |
Pollutant-Tissue |
Matrix: |
Tissue |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
7 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Fish tissue analysis |
Data Used to Assess Water Quality: |
Fish were sampled for tissue analysis at one location from the Colusa Basin Drain. A total of 2 out of 7 samples exceeded the USEPA fish tissue criterion for human health. The average wet weight mercury concentration in fish tissue was 0.21 ppm for all 7 samples collected. The number of fish collected per sample, the measured mercury concentrations in fish tissue, and the number of exceedances are, by species: Carp- 4 composite samples, 0.11-0.41 ppm (average 0.22 ppm), 1 exceedance; Crappie- 1 composite sample, 0.08 ppm, no exceedances; White Catfish- 2 composite samples, 0.21 and 0.30 ppm, 1 exceedance. All 7 composite samples were collected from fish with average total lengths greater than 150 mm, which represent fish most commonly caught and consumed by sport fishers and their families. |
Data Reference: |
Sacramento River Watershed Program Annual Reports for 1999-2000, 2000-2001, 2001-2002, 2002-2003, and 2003-2004; and BDAT data 1998-2003 |
|
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 |
|
Evaluation Guideline: |
The USEPA Fish Tissue Residue Criterion for methylmercury in fish is 0.3 mg/kg (0.3 ppm) for the protection of human health. This is the concentration in fish tissue that should not be exceeded based on a total fish and shellfish consumption-weighted rate of 0.0175 kg fish/day. |
Guideline Reference: |
Water Quality Criterion for the Protection of Human Health: Methylmercury. Final. United States Environmental Protection Agency Office of Science and Technology Office of Water. EPA-823-R-01-001. January 2001 |
|
Spatial Representation: |
Samples were collected from the Colusa Basin Drain at the County Road 99E bridge crossing. |
Temporal Representation: |
Fish samples were collected during five sampling events conducted in 1997, 1998, 2000, 2001 and 2002. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Quality Control for all of the elements described in section 6.1.4 of the Policy was conducted in accordance with the Sacramento River Watershed Program QAPPs prepared by Larry Walker Associates (LWA, 1998; LWA, 2000; LWA, 2001b; LWA, 2002b). |
QAPP Information Reference(s): |
Quality Assurance Project Plans prepared for Sacramento River Watershed Program |
|
|
LOE ID: |
22600 |
|
Pollutant: |
Mercury |
LOE Subgroup: |
Pollutant-Tissue |
Matrix: |
Tissue |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
17 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Fish tissue analysis |
Data Used to Assess Water Quality: |
Fish were sampled for tissue analysis at one location from the Colusa Basin Drain. A total of 0 of 17 fish tissue samples exceeded the USEPA fish tissue criterion for human health. The average wet weight mercury concentration in fish tissue was 0.15 ppm for all 17 samples collected. The number of fish collected per sample, the measured mercury concentrations in fish tissue, and the number of exceedances are, by species: Carp- 4 samples, 0.11-0.25 ppm (average 0.18 ppm), no exceedances; White Catfish- 13 samples, 0.10-0.20 ppm (average 0.14 ppm), no exceedances. All 17 samples were collected from fish with total lengths greater than 150 mm, which represent fish most commonly caught and consumed by sport fishers and their families. |
Data Reference: |
Fish Mercury Project, Year 1 Annual Report, Sport Fish Sampling and Analysis. Collaborating parties: San Francisco Estuary Institute, California Department of Fish and Game, Moss Landing Marine Laboratories, California Office of Environmental Health Hazard Assessment. Final Technical Report. CBDA Project # ERP 02D-P6729. May 2007 |
|
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 |
|
Evaluation Guideline: |
The USEPA Fish Tissue Residue Criterion for methylmercury in fish is 0.3 mg/kg (0.3 ppm) for the protection of human health. This is the concentration in fish tissue that should not be exceeded based on a total fish and shellfish consumption-weighted rate of 0.0175 kg fish/day. |
Guideline Reference: |
Water Quality Criterion for the Protection of Human Health: Methylmercury. Final. United States Environmental Protection Agency Office of Science and Technology Office of Water. EPA-823-R-01-001. January 2001 |
|
Spatial Representation: |
Fish samples were collected from the Colusa Basin Drain approximately 1.4 miles northwest of the County Road 99E bridge crossing. |
Temporal Representation: |
Fish samples were collected during one sampling event on 8/25/2005. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Excellent. Quality Control for all of the elements described in section 6.1.4 of the Policy was conducted in accordance with the Laboratory QAPP developed by Moss Landing Marine Laboratories (MLML, 2005). This data was also collected and analyzed in accordance with the CALFED Mercury Project QAPP (Puckett and van Buuren, 2000). |
QAPP Information Reference(s): |
|
|
LOE ID: |
22609 |
|
Pollutant: |
Mercury |
LOE Subgroup: |
Pollutant-Tissue |
Matrix: |
Tissue |
Fraction: |
Total |
|
Beneficial Use: |
Commercial or recreational collection of fish, shellfish, or organisms |
|
Number of Samples: |
10 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Fish tissue analysis |
Data Used to Assess Water Quality: |
Fish were sampled for tissue analysis at three locations from Colusa Basin Drain. A total of 1 out of 10 samples exceeded the USEPA fish tissue criterion for human health.
1) Colusa Basin Drain near Knights Landing: The average wet weight mercury concentration in fish tissue was 0.13 ppm for the 3 samples collected at this location. The number of fish collected per sample, the measured mercury concentrations in fish tissue, and the number of exceedances are, by species: Channel Catfish- 2 composite samples, 0.12 and 0.19 ppm, no exceedances; Sacramento Sucker- one sample, 0.07 ppm, no exceedances. 2) Colusa Basin Drain at the Yolo-Colusa County Line: One 5-fish composite sample of Channel Catfish was collected from this location. The wet weight mercury concentration of this fish tissue sample was 0.13 ppm, which does not exceed the USEPA criterion. 3) Colusa Basin Drain at Abel Road: The average wet weight mercury concentration in fish tissue was 0.22 ppm for the 6 samples collected at this location. The number of fish collected per sample, the measured mercury concentrations in fish tissue, and the number of exceedances are, by species: Brown Bullhead- 2 composite samples, 0.20 and 0.58 ppm, 1 exceedance; Carp- one 2-fish composite sample, 0.10 ppm, no exceedances; Channel Catfish- 3 composite samples, 0.14-0.16 ppm (average 0.15 ppm), no exceedances. All 10 samples were collected from fish with total lengths greater than 150 mm, which represent fish most commonly caught and consumed by sport fishers and their families. |
Data Reference: |
SWRCB-DWQ. 2002. Toxic Substances Monitoring Program: Freshwater Bioaccumulation Monitoring: TSM Program Data 1978-2000. State Water Resources Control Board, Division of Water Quality |
|
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 |
|
Evaluation Guideline: |
The USEPA Fish Tissue Residue Criterion for methylmercury in fish is 0.3 mg/kg (0.3 ppm) for the protection of human health. This is the concentration in fish tissue that should not be exceeded based on a total fish and shellfish consumption-weighted rate of 0.0175 kg fish/day. |
Guideline Reference: |
Water Quality Criterion for the Protection of Human Health: Methylmercury. Final. United States Environmental Protection Agency Office of Science and Technology Office of Water. EPA-823-R-01-001. January 2001 |
|
Spatial Representation: |
Fish samples were collected at three locations from the Colusa Basin Drain: near Knights Landing (approximately 1.4 miles northwest of the County Road 99E bridge crossing); at the Yolo-Colusa County Line; and at Abel Road (approximately 0.8 miles northwest of the Abel Road bridge crossing). |
Temporal Representation: |
Fish samples were collected during five sampling events, on: 10/23/1980, 7/23/1981, 9/25/1987, 9/16/1988, and 9/23/1988. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Good.. Quality Control for the fish sampling, tissue preparation, mercury analysis, and QA sample analysis portions of this study was conducted as described in the Toxic Substance Monitoring Reports for 1980, 1981, 1987 and 1988-89. (McCleneghan et al., 1981; La Karo et al., 1982; Rasmussen and Starrett, 1989; Rasmussen and Blethrow, 1991). |
QAPP Information Reference(s): |
|
DECISION ID |
6640 |
|
Pollutant: |
Azinphos-methyl (Guthion) |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2019 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The Regional Board will update this decision when new data and information become available and are assessed. |
|
SWRCB Board Decision / Staff Recommendation: |
N/A |
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 6640 |
|
LOE ID: |
4297 |
|
Pollutant: |
Azinphos-methyl (Guthion) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold 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: |
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): |
|
DECISION ID |
6642 |
|
Pollutant: |
Carbofuran |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2021 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
|
|
SWRCB Board Decision / Staff Recommendation: |
N/A |
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 6642 |
|
LOE ID: |
4298 |
|
Pollutant: |
Carbofuran |
LOE Subgroup: |
Pollutant-Water |
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: |
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): |
|
DECISION ID |
6643 |
|
Pollutant: |
Group A Pesticides |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2019 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
|
|
SWRCB Board Decision / Staff Recommendation: |
N/A |
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 6643 |
|
LOE ID: |
4299 |
|
Pollutant: |
Group A Pesticides |
LOE Subgroup: |
Pollutant-Water |
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: |
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): |
|
DECISION ID |
6645 |
|
Pollutant: |
Malathion |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2010 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The Regional Board will update this decision when new data and information become available and are assessed. |
|
SWRCB Board Decision / Staff Recommendation: |
N/A |
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 6645 |
|
LOE ID: |
4300 |
|
Pollutant: |
Malathion |
LOE Subgroup: |
Pollutant-Water |
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: |
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): |
|
DECISION ID |
6158 |
|
Pollutant: |
Unknown Toxicity |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (TMDL required list)(2006) |
Revision Status |
Original |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2019 |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
|
RWQCB Board Decision / Staff Recommendation: |
No new data were assessed for 2008. The Regional Board will update this decision when new data and information become available and are assessed. |
|
SWRCB Board Decision / Staff Recommendation: |
N/A |
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 6158 |
|
LOE ID: |
4303 |
|
Pollutant: |
Unknown Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Cold 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): |