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) |
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) |
|
DECISION ID |
10346 |
|
Pollutant: |
Nitrate |
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 listing under sections 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Data is available from 1 line of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that 0 of 2 available concentrations exceeded the USEPA Primary MCL and this does not exceed the allowable frequency using Table 3.1 of the Listing Policy. The recommendation is based on staff findings that 0 of 2 available concentrations exceeded the USEPA National Ambient Water Quality Objective and this does not exceed the allowable frequency using Table 3.1 of the Listing Policy. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 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: |
|
|
|
|
LOE ID: |
20758 |
|
Pollutant: |
Nitrate as Nitrate (NO3) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
0 of the 2 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Nitrate-N. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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 exceed 45 mg/L (Department of Public Health Primary MCL) |
Guideline Reference: |
Compilation of Water Quality Goals |
|
Spatial Representation: |
Samples were collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jun 13 2002 to Jun 26 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): |
|
|
LOE ID: |
8667 |
|
Pollutant: |
Nitrate as Nitrate (NO3) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 2 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation guideline for Nitrate-N. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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 Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jun 13 2002 to Jun 26 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): |
|
DECISION ID |
9223 |
|
Pollutant: |
Oxygen, Dissolved |
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 listing under sections 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Data is available from 1 line of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that 1 of 21 available concentrations exceeded the water quality objective and this does not exceed the allowable frequency using Table 3.2 of the Listing Policy.
The data used satisfies the data quality requirements of section 6.1.4 of the Policy. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 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 9223 |
|
LOE ID: |
8656 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
21 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
One of the 21 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Dissolved Oxygen. The exceeded results are as follows: 11/7/2002 - a sample taken at Sutter Creek at Highway 49 had a result of 5.7mg/L. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
Water Quality Objective/Criterion: |
The Basin Plan Objective sets the minimum Dissolved Oxygen content at 7 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: |
Samples were collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jan 9 2002 to Dec 23 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): |
|
DECISION ID |
11668 |
|
Pollutant: |
Sediment Toxicity |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 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. 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 1 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 11668 |
|
LOE ID: |
23321 |
|
Pollutant: |
Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
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: |
Only one sample tested with Hyalella azteca survival. |
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 t-test with 10-day Hyalella azteca sediment toxicity tests. |
Guideline Reference: |
|
Spatial Representation: |
Sample was collected from Sutter Creek at Highway 49. |
Temporal Representation: |
Sample was collected on May 31, 2002. |
Environmental Conditions: |
|
QAPP Information: |
Data quality: Fair. 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)
|
|
DECISION ID |
10347 |
|
Pollutant: |
Selenium |
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 listing under sections 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Data is available from 1 line of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that only 1 sample is available and a minimum of 2 samples is needed for evaluation under section 3.1 for the Municipal Beneficial Use and for the Cold Water Habitat. |
|
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 10347 |
|
LOE ID: |
20273 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
0 of the 1 sample collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Selenium. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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: |
Selenium levels should not exceed 50 ug/L (Department of Public Health Primary MCL) |
Guideline Reference: |
Compilation of Water Quality Goals |
|
Spatial Representation: |
The sample was collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The sample was collected on Oct 24 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): |
|
|
LOE ID: |
8664 |
|
Pollutant: |
Selenium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 1 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Selenium. |
Data Reference: |
Compilation of Water Quality Goals |
|
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 Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Oct 24 2002 to Oct 24 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): |
|
DECISION ID |
10352 |
|
Pollutant: |
Specific Conductivity |
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 listing under sections 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Data is available from 1 line of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that 0 of 21 available concentrations exceeded the water quality objective and this does not exceed 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 21 has 5 or more samples that exceed the evaluation criteria.
The data used satisfies the data quality requirements of section 6.1.4 of the Policy. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 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 10352 |
|
LOE ID: |
20854 |
|
Pollutant: |
Specific Conductivity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
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: |
0 of the 21 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Specific Conductivity. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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: |
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 (MCLs) protective of MUN (CVRWQCB, 2007a).The secondary MCLs 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. |
Guideline Reference: |
Compilation of Water Quality Goals |
|
Spatial Representation: |
Samples were collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jan 9 2002 to Dec 23 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): |
|
DECISION ID |
10353 |
|
Pollutant: |
Zinc |
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 listing under sections 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Data is available from 2 lines of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that 0 of 2 available concentrations exceeded the California Toxics Rule for Cold Freshwater Habitat and this does not exceed the allowable frequency using Table 3.1 of the Listing Policy. The recommendation is also based on staff findings that 0 of 2 available concentrations exceeded the Department of Public Health Secondary MCL for Municipal & Domestic Supply and this does not exceed the allowable frequency using Table 3.1 of the Listing Policy.
The data used satisfies the data quality requirements of section 6.1.4 of the Policy. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 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 10353 |
|
LOE ID: |
8666 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 2 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Zinc. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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 Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jun 13 2002 to Jun 26 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): |
|
|
LOE ID: |
20771 |
|
Pollutant: |
Zinc |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
2 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
0 of the 2 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for Zinc. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
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: |
Zinc levels should not exceed 5000 ug/L (Department of Public Health Secondary MCL) |
Guideline Reference: |
Compilation of Water Quality Goals |
|
Spatial Representation: |
Samples were collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jun 13 2002 to Jun 26 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): |
|
DECISION ID |
9226 |
|
Pollutant: |
pH |
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 listing under sections 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Data is available from 1 line of evidence for this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification for placing this water segment-pollution combination on the section 303(d) list. The recommendation is based on staff findings that 0 of 21 available concentrations exceeded the water quality objective and this does not exceed 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 21 has 5 or more samples that exceed the evaluation criteria.
The data used satisfies the data quality requirements of section 6.1.4 of the Policy. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 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 9226 |
|
LOE ID: |
8657 |
|
Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
21 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 21 samples collected by the Surface Water Ambient Monitoring Program exceeded the evaluation objective for pH. |
Data Reference: |
SWAMP data entered by SWRCB into BDAT database |
|
Water Quality Objective/Criterion: |
pH levels should not be lower than 6.5 or higher than 8.5 (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 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected at Sutter Creek at Highway 49. |
Temporal Representation: |
The samples were collected from Jan 9 2002 to Dec 23 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): |