Draft California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 2 - San Francisco Bay Region

Water Body Name: San Francisco Bay, Central
Water Body ID: CAB2031201019981217171707
Water Body Type: Bay & Harbor
 
DECISION ID
88747
Region 2     
San Francisco Bay, Central
 
Pollutant: Diazinon
Final Listing Decision: Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Reason for Delisting: Applicable WQS attained; reason for recovery unspecified
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Seven lines of evidence are available in the administrative record to assess this pollutant. Zero of seventy-nine samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3.Zero of seventy-nine samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 9
 
Pollutant: Diazinon
LOE Subgroup: Toxicity
Matrix: Not Specified
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: TOXICITY TESTING
Data Used to Assess Water Quality: Ambient water toxicity in San Francisco Bay appears to have disappeared. The results of ambient water toxicity monitoring at Mallard Island indicate a significant reduction in the frequency, duration, and magnitude of toxicity: 4-5% of the ambient water samples were toxic in 1998-99 (34 total samples) and 1999-2000 (23 samples), relative to 14% toxicity frequency observed in 1997-98 (27 samples); none of the 28 samples collected during the 2000-2001 season were significantly toxic.

In addition, the 1998-2000 and 2000-2001 monitoring at Mallard Island did not document any sets of consecutively toxic samples indicative of an extended period of ambient water toxicity, such as were observed in February and May of 1998. The magnitude of toxicity (as reflected by the degree [or percentage] of test organism mortality) is also markedly reduced in the later years, indicating a reduction in the degree of ambient water toxicity. Subsequent RMP monitoring of ambient water toxicity in water samples collected from 10/2001 through 4/2003 also indicated an absence of toxicity to the test organisms (Ogle, 2004).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Basin Plan: There shall be no acute toxicity in ambient waters. There shall be no chronic toxicity in ambient waters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation:
Temporal Representation:
Environmental Conditions:
QAPP Information: QA Info Missing
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 95160
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 51 samples exceed the criterion for diazinon. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for diazinon in fish tissue is 1,500 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at five sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected in May 2000, June 2000, July 2003, August 2003, and June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 92818
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 46
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 46 samples exceed the criterion for Diazinon.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The freshwater chronic value for diazinon is 0.1 ug/L, expressed as a continuous concentration (Finlayson, 2004).
Guideline Reference: Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 10 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/12/2005.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 8
 
Pollutant: Diazinon
LOE Subgroup: Narrative Description Data
Matrix: -N/A
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: In response to the RMP observations of ambient water toxicity, and given the linkage established between similar toxicity and pesticides in upstream ambient water, the SFBRWQCB identified all San Francisco Bay segments as being impaired due to Pesticides in 1998:

Pesticides have been added as a cause of impairment to all Bay segments. The pesticide diazinon has been measured at levels that cause water column toxicity. The pesticide chlorpyrifos may also be a problem. This listing is consistent with listing of the Delta for these pesticides by the Central Valley Regional Water Quality Control Board. This listing was subsequently made specific for the organophosphate pesticide diazinon by the USEPA.
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. There shall be no chronic toxicity in ambient waters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation:
Temporal Representation:
Environmental Conditions:
QAPP Information: QA Info Missing
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 92817
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 46
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 46 samples exceed the criterion for Diazinon.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The chronic criterion for diazinon to protect saltwater aquatic organisms is 0.82 ug/L (EPA-822-R-05-006).
Guideline Reference: Water quality for diazinon. Memorandum to J. Karkoski, Central Valley RWQCB. Rancho Cordova, CA: Pesticide Investigation Unit, CA Department of Fish and Game
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 10 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/12/2005.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 11
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 34
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: 1st sample site: None of the 18 samples exceeded, pollutant range: 240-32,000 pg/l, average: 3,492.8.
2nd sample site: None of the 16 viable samples exceeded, pollutant range: 370-13,000 pg/l, average: 2,907.5 (SFEI, 2001).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. There shall be no chronic toxicity in ambient waters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline: For salt water, USEPA has developed draft water quality criteria of 820 ng/L (acute) and 400 ng/L (chronic). The use of these values may not comply with all the requirements of section 6.1.3 of the Listing Policy.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Two sample sites.
Temporal Representation: 1st sample site: Date Range: 02/07/94-08/02/01.
2nd sample site: Date Range: 03/03/93-08/03/01.
Environmental Conditions:
QAPP Information: SFEI RMP QA/QC program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 88747, Diazinon
Region 2     
San Francisco Bay, Central
 
LOE ID: 10
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 33
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: 1st sample site: None of the 17 samples exceeded, pollutant range: 240-32,000 pg/L, average: 3,555.0.
2nd sample site: None of the 16 samples exceeded, pollutant range: 370-13,000 pg/L, average: 2,898.0 (SFEI, 2001).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that are lethal to or that produce other detrimental responses in aquatic organisms. Detrimental responses include, but are not limited to, decreased growth rate and decreased reproductive success of resident or indicator species. There shall be no acute toxicity in ambient waters. There shall be no chronic toxicity in ambient waters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline: For salt water, USEPA has developed draft water quality criteria of 820 ng/L (acute) and 400 ng/L (chronic). The use of these values may not comply with all the requirements of section 6.1.3 of the Listing Policy.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Two sample sites.
Temporal Representation: 1st sample site: Date Range: 02/07/94-08/02/01.
2nd sample site: Date Range: 03/03/93-08/03/01
Environmental Conditions:
QAPP Information: SFEI RMP QA/QC program.
QAPP Information Reference(s):
 
 
DECISION ID
90236
Region 2     
San Francisco Bay, Central
 
Pollutant: Chlordane
Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2013
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.

Eight lines of evidence are available in the administrative record to assess pollutant. Thirty-seven of the hundred samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Thirty-seven of the hundred samples exceed the guideline and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 95205
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 100
Number of Exceedances: 36
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 36 of 100 samples exceed the criterion for chlordane. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at fifteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 92806
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 60
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 60 samples exceed the criterion for Chlordane, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Chlordane, Total criteria for the protection of human health from consumption of organisms only is 0.00059 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 92803
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The results did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Chlordane result was calculated by summing the results for chlordane isomers: cis- and trans-nonachlor, alpha- and gamma-chlordane, and oxychlordane.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total chlordane in shellfish tissue is 6.0 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 93624
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. Total chlordane was calculated as the sum of the following chlordane isomers: cis- and trans-chlordane, cis- and trans-nonachlor, and oxychlordane.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total chlordane in shellfish tissue is 6.0 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 3823
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Not Recorded
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 95882
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 4
Number of Exceedances: 3
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for the Richmond Marina to determine beneficial use support and results are as follows: 3 of 4 samples exceed the criterion for chlordane. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total chlordane in fish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in the Richmond Marina. Because these sportfish are wide-ranging, the contaminants they accumulate best represent conditions in the Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 92804
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 56
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 56 samples exceed the criterion for Chlordane, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The chlordane criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.004 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90236, Chlordane
Region 2     
San Francisco Bay, Central
 
LOE ID: 92805
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 56
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 56 samples exceed the criterion for Chlordane, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The chlordane criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.004 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
68978
Region 2     
San Francisco Bay, Central
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2013
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the CWA section 303(d) List under section 4.5 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.

Nine lines of evidence are available in the administrative record to assess pollutant. Seventy-five of one hundred seven samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seventy-five of one hundred seven samples exceed the guideline and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92997
 
Pollutant: Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 60
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 1 of 60 samples exceed the criterion for DDT, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The DDT, Total criteria for the protection of human health from consumption of organisms only is 0.00059 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92995
 
Pollutant: Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for DDT, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The DDT criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.001 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 93625
 
Pollutant: Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. Total DDT was calculated as the sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total DDT in shellfish tissue is 23 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92994
 
Pollutant: Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 1
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: One of the three results did exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. The total DDTs were calculated as the sum of 4,4- and 2,4- isomers of DDT, DDE, and DDD.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total DDT in shellfish tissue is 23 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92996
 
Pollutant: Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for DDT, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The DDT criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.001 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 3824
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Not Recorded
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95194
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 100
Number of Exceedances: 69
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 69 of 100 samples exceed the criterion for DDT. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at fifteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95880
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 3
Number of Exceedances: 3
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Berkeley Marina to determine beneficial use support and results are as follows: Three of three samples exceed the criterion for DDT. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in Berkeley Marina, but these sportfish represent contaminant concentrations in the Central San Francisco Bay.
Temporal Representation: The samples were collected in July 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 68978, DDT (Dichlorodiphenyltrichloroethane)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95884
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 4
Number of Exceedances: 3
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for the Richmond Marina to determine beneficial use support and results are as follows: 3 of 4 samples exceed the criterion for DDT. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for total DDT in fish tissue is 15 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in the Richmond Marina. The sportfish sampled are wide-ranging species so these data represent Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
90565
Region 2     
San Francisco Bay, Central
 
Pollutant: Dieldrin
Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2013
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the CWA section 303(d) List under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.

Eight lines of evidence are available in the administrative record to assess pollutant. Sixty-five of sixty-six samples exceed the evaluation guideline.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Sixty-five of sixty-six samples exceed the evaluation guideline and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 93626
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 49
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Fourty-nine of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for dieldrin in shellfish tissue is 0.49 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92819
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 3
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: All three results exceeded the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for dieldrin in shellfish tissue is 0.49 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 3825
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Not Recorded
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 95881
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 3
Number of Exceedances: 3
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Berkeley Marina to determine beneficial use support and results are as follows: Three of three samples exceed the criterion for dieldrin. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in Berkeley Marina, but the sportfish have a wide range. Thus, these fish represent conditions in Central San Francisco Bay.
Temporal Representation: The samples were collected in July 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 95167
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 66
Number of Exceedances: 65
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 65 of 66 samples exceed the criterion for dieldrin. 49 samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at fourteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through August 2003.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92822
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for Dieldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0019 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92820
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for Dieldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Dieldrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0019 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92821
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 60
Number of Exceedances: 5
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 5 of 60 samples exceed the criterion for Dieldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Dieldrin criteria for the protection of human health from consumption of organisms only is 0.00014 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90565, Dieldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 95885
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 4
Number of Exceedances: 4
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for the Richmond Marina to determine beneficial use support and results are as follows: 4 of 4 samples exceed the criterion for dieldrin. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for dieldrin in fish tissue is 0.32 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in the Richmond Marina. These sportfish are wide-ranging so these data represent Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
69415
Region 2     
San Francisco Bay, Central
 
Pollutant: Mercury
Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)(2016)
Revision Status Original
Sources: Atmospheric Deposition | Industrial Point Sources | Municipal Point Sources | Natural Sources | Nonpoint Source | Resource Extraction
TMDL Name: San Francisco Bay Mercury
TMDL Project Code: 6
Date TMDL Approved by USEPA: 02/12/2008
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal on the CWA section 303(d) List under sections 2.2 and Section 4.1 of the Listing Policy. Under Section 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Eighty of one hundred eighty five samples exceeded the evaluation guidelines and these exceed the allowable frequency listed in Table 4.1 of the Listing Policy.
4. The SF Bay Mercury TMDL was approved by USEPA on 2/12/2008.
5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 69415, Mercury
Region 2     
San Francisco Bay, Central
 
LOE ID: 93689
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 34
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 34 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. If a dry weight result did not have a corresponding moisture result for conversion to wet weight, the sample was not included in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The USEPA 304(a) recommended water quality criterion for concentrations of methylmercury in shellfish tissue (wet weight) is 0.20 ppm. (Brodberg, R.K., and G.A. Pollock, 1999; USEPA, 2001)
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
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 69415, Mercury
Region 2     
San Francisco Bay, Central
 
LOE ID: 3829
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Not Recorded
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 69415, Mercury
Region 2     
San Francisco Bay, Central
 
LOE ID: 95178
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 157
Number of Exceedances: 78
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 78 of 157 samples exceed the criterion for mercury. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The Water Quality Control Plan for the San Francisco Bay Basin has a water quality objective in all parts of San Francisco Bay of 0.2 mg mercury per kg fish tissue for the protection of human health.
Guideline Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Spatial Representation: The samples were collected at sixteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through October 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 69415, Mercury
Region 2     
San Francisco Bay, Central
 
LOE ID: 92848
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The three samples did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The USEPA 304(a) recommended water quality criterion for concentrations of methylmercury in shellfish tissue (wet weight) is 0.2 ppm. (Brodberg, R.K., and G.A. Pollock, 1999; USEPA, 2001)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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 are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
 
DECISION ID
91401
Region 2     
San Francisco Bay, Central
 
Pollutant: PCBs (Polychlorinated biphenyls)
Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)(2016)
Revision Status Original
Sources: A Source Unknown
TMDL Name: San Francisco Bay PCBs
TMDL Project Code: 7
Date TMDL Approved by USEPA: 03/29/2010
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal on the CWA section 303(d) List under sections 2.2 and Section 4.1 of the Listing Policy. Under Section 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status.

Eight lines of evidence are available in the administrative record to assess this pollutant.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Fifty-two of fifty-four samples exceeded the evaluation guidelines and these exceed the allowable frequency listed in Table 4.1 of the Listing Policy.
4. The SF Bay PCBs TMDL was approved by USEPA on March 29, 2010.
5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92779
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for PCB, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The PCB, Total criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saltwater is 0.03 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92778
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for PCB, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The PCB, Total criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saltwater is 0.03 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95883
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 4
Number of Exceedances: 3
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for the Richmond Marina to determine beneficial use support and results are as follows: 3 of 4 samples exceed the criterion for PCBs. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in fish tissue is 2.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at one site in the Richmond Marina. The sportfish are wide-ranging so these data represent fish from Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95101
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 127
Number of Exceedances: 31
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 31 of 127 samples exceed the criterion for PCBs. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in fish tissue is 2.6 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at seventeen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through October 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 3830
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Not Recorded
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: Placeholder reference pre-2006 303(d)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 93666
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 49
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Fourty-nine of the 51 samples exceeded the guideline. Composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. Total PCB was assessed for as follows: PCB aroclors and congeners were summed separately and the sum that yielded the highest value was used for the assessment. The results for Station BC61 collected on 5/8/1997 were not valid samples and so were not used in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin (2013): Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in shellfish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC10 - Yerba Buana Island, BC21 - Horseshoe Bay, and BC61 - Red Rock.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during fall season from years 2000 - 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92777
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 3
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: All three results did exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Total PCB was assessed for as follows: PCB aroclors and congeners were summed separately and the sum that yielded the highest value was used for the assessment.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for polychlorinated biphenyls in shellfish tissue is 3.9 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 91401, PCBs (Polychlorinated biphenyls)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92780
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 60
Number of Exceedances: 51
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 51 of 60 samples exceed the criterion for PCB, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Polychlorinated Biphenyls criteria for the protection of human health from consumption of organisms only is 0.00017 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
90566
Region 2     
San Francisco Bay, Central
 
Pollutant: Selenium
Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)(2016)
Revision Status Original
Sources: A Source Unknown
TMDL Name: San Francisco Bay Selenium - North Bay
TMDL Project Code: 540
Date TMDL Approved by USEPA: 08/23/2016
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal on the CWA section 303(d) List under sections 2.2 and 4.1 of the Listing Policy. Under 4.1 of the Policy, a minimum of one line of evidence is needed to assess listing status.

Six lines of evidence are available in the administrative record to assess this pollutant.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the CWA section 303(d) List. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Impairment should be based on protection of aquatic life beneficial uses and the existing aquatic life value referenced in the CTR is not sufficiently protective of sensitive fish species. Numeric targets to protect aquatic life are included in the North SF Bay Selenium TMDL and this listing will be reevaluated in accordance with the TMDL
4. The North SF Bay Selenium TMDL was approved by USEPA on 8/23/2016.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. Impairment should be based on protection of aquatic life beneficial uses and the existing aquatic life value referenced in the CTR is not sufficiently protective of sensitive fish species. Numeric targets to protect aquatic life are included in the North SF Bay Selenium TMDL and this listing will be reevaluated in accordance with the TMDL
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92789
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Selenium.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 5 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92790
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Selenium.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved selenium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 5 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 95105
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 22
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 22 samples exceed the criterion for selenium. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The OEHHA Fish Contaminant Goal for selenium in fish tissue is 7.4 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A background dietary consumption rate of 0.114 mg/day is applied for this micronutrient. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at eight sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 3832
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Estuarine 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)
 
SWAMP Data: Non-SWAMP
 
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):
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 93690
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 44
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 44 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. If a dry weight result did not have a corresponding moisture result for conversion to wet weight, the sample was not included in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for selenium in shellfish tissue is 11 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. A background dietary consumption rate of 0.114 mg/day is applied for this micronutrient. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
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
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during fall of 2000 and 2001. Samples were collected at BC10 and BC61 during fall 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 90566, Selenium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92788
 
Pollutant: Selenium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The three samples did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for selenium in shellfish tissue is 11 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. A background dietary consumption rate of 0.114 mg/day is applied for this micronutrient. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
 
DECISION ID
98674
Region 2     
San Francisco Bay, Central
 
Pollutant: Acenaphthene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of forty-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of forty-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98674, Acenaphthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92782
 
Pollutant: Acenaphthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 44
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 44 samples exceed the criterion for Acenaphthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The available data for acenaphthene indicate that chronic toxicity to saltwater aquatic life occurs at concentrations as low as 710 ug/Land would occur at lower concentrations among species that are more sensitive than those tested. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 2/7/1996-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98674, Acenaphthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92783
 
Pollutant: Acenaphthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 38
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 38 samples exceed the criterion for Acenaphthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Acenaphthene criteria for the protection of human health from consumption of organisms only is 2,700 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 11 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 2/7/1996-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98674, Acenaphthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92781
 
Pollutant: Acenaphthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 44
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 44 samples exceed the criterion for Acenaphthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The available data for acenaphthene indicate that chronic toxicity to saltwater aquatic life occurs at concentrations as low as 710 ug/Land would occur at lower concentrations among species that are more sensitive than those tested. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 2/7/1996-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98675
Region 2     
San Francisco Bay, Central
 
Pollutant: Aldrin
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of eight samples exceed the guideline.

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 CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of eight samples exceed the guideline and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1.
4. Pursuant to SECTION 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98675, Aldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92786
 
Pollutant: Aldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 3 samples exceed the criterion for Aldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Aldrin criteria for the protection of human health from consumption of organisms only is 0.00014 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 1 monitoring site [ Yerba Buena Island - BC10]
Temporal Representation: Data was collected over the time period 7/19/2004-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98675, Aldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92784
 
Pollutant: Aldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Aldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The aldrin criterion maximum concentration to protect aquatic life in saline water is 1.3 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 5 monitoring sites [ Yerba Buena Island - BC10, Central Bay - CB011W, Central Bay - CB005W, Central Bay - CB009W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 8/12/2003-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98675, Aldrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92785
 
Pollutant: Aldrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 8
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Aldrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The aldrin criterion maximum concentration to protect aquatic life in saline water is 1.3 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 5 monitoring sites [ Yerba Buena Island - BC10, Central Bay - CB011W, Central Bay - CB005W, Central Bay - CB009W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 8/12/2003-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98677
Region 2     
San Francisco Bay, Central
 
Pollutant: Anthracene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of forty-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of forty-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98677, Anthracene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92793
 
Pollutant: Anthracene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 44
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 44 samples exceed the criterion for Anthracene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Anthracene criteria for the protection of human health from consumption of organisms only is 110,000 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 9 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99610
Region 2     
San Francisco Bay, Central
 
Pollutant: Arsenic
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Six lines of evidence are available in the administrative record to assess this pollutant. Zero of ninety-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 93687
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 35
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Zero of the thirty-five samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. The fraction of total arsenic in inorganic form was taken to be 0.115%, which was the maximum fraction of inorganic arsenic found in shellfish tissue from SF Bay. This number was screened against the guideline. Laboratory replicates were averaged. If a dry weight result did not have a corresponding moisture result for conversion to wet weight, the sample was not included in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
  Contaminant Concentrations in Fish from San Francisco Bay, 2000
  Calculating Fraction of Inorganic Arsenic in SF Bay Fish and Shellfish
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Advisory Tissue Level for arsenic in shellfish tissue is 0.52 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in ten thousand. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2004)

Advisory Tissue Levels (ATLs), while still conferring no significant health risk to
individuals consuming sport fish in the quantities shown over a lifetime, were developed
with the recognition that there are unique health benefits associated with fish
consumption and that the advisory process should be expanded beyond a simple risk
paradigm in order to best promote the overall health of the fish consumer. ATLs provide
a number of recommended fish servings that correspond to the range of contaminant
concentrations found in fish and are used to provide consumption advice to prevent
consumers from being exposed to more than the average daily reference dose for noncarcinogens
or to a risk level greater than 1x10-4 for carcinogens (not more than one
additional cancer case in a population of 10,000 people consuming fish at the given
consumption rate over a lifetime). ATLs are designed to encourage consumption of fish
that can be eaten in quantities likely to provide significant health benefits, while
discouraging consumption of fish that, because of contaminant concentrations, should not
be eaten or cannot be eaten in amounts recommended for improving overall health (eight
ounces total, prior to cooking, per week). ATLs are one of the criteria that will be used
by OEHHA for issuing fish consumption guidelines.
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during fall 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 92794
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Arsenic.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline: The Arsenic criteria for the protection of human health from consumption of organisms only is 0.14 ug/L (National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 92795
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Zero of three samples exceeded the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. The fraction of total arsenic in inorganic form was taken to be 0.115%, which was the maximum fraction of inorganic arsenic found in shellfish tissue from SF Bay. This number was screened against the guideline.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
  Contaminant Concentrations in Fish from San Francisco Bay, 2000
  Calculating Fraction of Inorganic Arsenic in SF Bay Fish and Shellfish
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Advisory Tissue Level for arsenic in shellfish tissue is 0.52 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in ten thousand. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2004)

Advisory Tissue Levels (ATLs), while still conferring no significant health risk to
individuals consuming sport fish in the quantities shown over a lifetime, were developed
with the recognition that there are unique health benefits associated with fish
consumption and that the advisory process should be expanded beyond a simple risk
paradigm in order to best promote the overall health of the fish consumer. ATLs provide
a number of recommended fish servings that correspond to the range of contaminant
concentrations found in fish and are used to provide consumption advice to prevent
consumers from being exposed to more than the average daily reference dose for noncarcinogens
or to a risk level greater than 1x10-4 for carcinogens (not more than one
additional cancer case in a population of 10,000 people consuming fish at the given
consumption rate over a lifetime). ATLs are designed to encourage consumption of fish
that can be eaten in quantities likely to provide significant health benefits, while
discouraging consumption of fish that, because of contaminant concentrations, should not
be eaten or cannot be eaten in amounts recommended for improving overall health (eight
ounces total, prior to cooking, per week). ATLs are one of the criteria that will be used
by OEHHA for issuing fish consumption guidelines.
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 95215
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 24
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 24 samples exceed the criterion for Arsenic. The fraction of total arsenic in inorganic form was taken to be 3.2%, which was the maximum fraction of inorganic arsenic found in shark tissue from SF Bay. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Contaminant Concentrations in Fish from San Francisco Bay, 2000
  Calculating Fraction of Inorganic Arsenic in SF Bay Fish and Shellfish
  Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Advisory Tissue Level for arsenic in fish tissue is 0.34 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in ten thousand. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2004).

Advisory Tissue Levels (ATLs), while still conferring no significant health risk to
individuals consuming sport fish in the quantities shown over a lifetime, were developed
with the recognition that there are unique health benefits associated with fish
consumption and that the advisory process should be expanded beyond a simple risk
paradigm in order to best promote the overall health of the fish consumer. ATLs provide
a number of recommended fish servings that correspond to the range of contaminant
concentrations found in fish and are used to provide consumption advice to prevent
consumers from being exposed to more than the average daily reference dose for noncarcinogens
or to a risk level greater than 1x10-4 for carcinogens (not more than one
additional cancer case in a population of 10,000 people consuming fish at the given
consumption rate over a lifetime). ATLs are designed to encourage consumption of fish
that can be eaten in quantities likely to provide significant health benefits, while
discouraging consumption of fish that, because of contaminant concentrations, should not
be eaten or cannot be eaten in amounts recommended for improving overall health (eight
ounces total, prior to cooking, per week). ATLs are one of the criteria that will be used
by OEHHA for issuing fish consumption guidelines.
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: The samples were collected at nine sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994 and June 2003.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 92796
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Arsenic.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.036 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99610, Arsenic
Region 2     
San Francisco Bay, Central
 
LOE ID: 92797
 
Pollutant: Arsenic
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Arsenic.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved arsenic criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.036 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98731
Region 2     
San Francisco Bay, Central
 
Pollutant: Benzo(a)pyrene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-three samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-three samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98731, Benzo(a)pyrene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92798
 
Pollutant: Benzo(a)pyrene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 53
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 53 samples exceed the criterion for Indeno(1, 2, 3-C, D)Pyrene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Indeno(1, 2, 3-C, D)Pyrene criteria for the protection of human health from consumption of organisms only is 0.049 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 12 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/14/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98733
Region 2     
San Francisco Bay, Central
 
Pollutant: Cadmium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Five lines of evidence are available in the administrative record to assess this pollutant. Zero of ninety-three samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety-three samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98733, Cadmium
Region 2     
San Francisco Bay, Central
 
LOE ID: 93688
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 42
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 42 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. If a dry weight result did not have a corresponding moisture result for conversion to wet weight, the sample was not included in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for cadmium in shellfish tissue is 3.3 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during fall of 2000 and 2001. Samples were collected at BC10 and BC61 during fall 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98733, Cadmium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92800
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The three samples did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for cadmium in shellfish tissue is 3.3 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 98733, Cadmium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92801
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Cadmium.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.093 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98733, Cadmium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92802
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Cadmium.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved cadmium criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.093 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98733, Cadmium
Region 2     
San Francisco Bay, Central
 
LOE ID: 95144
 
Pollutant: Cadmium
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 22
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 22 samples exceed the criterion for cadmium. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for cadmium in fish tissue is 2.2 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at eight sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98734
Region 2     
San Francisco Bay, Central
 
Pollutant: Chlorpyrifos
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant. Zero of one hundred samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of one hundred samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98734, Chlorpyrifos
Region 2     
San Francisco Bay, Central
 
LOE ID: 92808
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 50
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Chlorpyrifos.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Basin Plan).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The saltwater criterion continuous concentration to protect aquatic organisms is 0.009 ug/L (Siepmann and Finlayson 2000).
Guideline Reference: 10-Day toxicity test exposing freshwater amphipods (Hyalella azteca) to fenpropathrin applied to formulated sediment under static-renewal conditions. Springborn Smithers Laboratories Study No. 13656.6137, Wareham, MA. Submitted to pyrethroid working group. DPR record number 254438
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 10 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/12/2005.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98734, Chlorpyrifos
Region 2     
San Francisco Bay, Central
 
LOE ID: 92809
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 50
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Chlorpyrifos.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Basin Plan).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The saltwater criterion continuous concentration to protect aquatic organisms is 0.009 ug/L (Siepmann and Finlayson 2000).
Guideline Reference: 10-Day toxicity test exposing freshwater amphipods (Hyalella azteca) to fenpropathrin applied to formulated sediment under static-renewal conditions. Springborn Smithers Laboratories Study No. 13656.6137, Wareham, MA. Submitted to pyrethroid working group. DPR record number 254438
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 10 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/12/2005.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98734, Chlorpyrifos
Region 2     
San Francisco Bay, Central
 
LOE ID: 92807
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: All three results did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for chlorpyrifos in shellfish tissue is 1,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 98734, Chlorpyrifos
Region 2     
San Francisco Bay, Central
 
LOE ID: 95151
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 100
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 100 samples exceed the criterion for chlorpyrifos. One sample was discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for chlorpyrifos in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at fifteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98735
Region 2     
San Francisco Bay, Central
 
Pollutant: Chromium
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-nine samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-nine samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98735, Chromium
Region 2     
San Francisco Bay, Central
 
LOE ID: 92810
 
Pollutant: Chromium
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 59
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 59 samples exceed the criterion for Chromium.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved chromium (III) criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in freshwater is 0.180 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 3 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60]
Temporal Representation: Data was collected over the time period 3/2/1993-7/16/1999.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
97864
Region 2     
San Francisco Bay, Central
 
Pollutant: Chrysene (C1-C4)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-eight samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-eight samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 97864, Chrysene (C1-C4)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92811
 
Pollutant: Chrysene (C1-C4)
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 58
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 58 samples exceed the criterion for Chrysene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Chrysene criteria for the protection of human health from consumption of organisms only is 0.049 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 15 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
97865
Region 2     
San Francisco Bay, Central
 
Pollutant: Copper
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero of one hundred three samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of one hundred three samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 97865, Copper
Region 2     
San Francisco Bay, Central
 
LOE ID: 92812
 
Pollutant: Copper
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Copper.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: According to table 3-3A, the Copper site-specific objective for San Francisco Bay, Central is 6 ug/L.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97865, Copper
Region 2     
San Francisco Bay, Central
 
LOE ID: 92813
 
Pollutant: Copper
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 9
Number of Exceedances: 0
 
Data and Information Type: Fixed station physical/chemical (conventional plus toxic pollutants)
Data Used to Assess Water Quality: None of the nine samples exceeded the SSO value of 6 ug/L for dissolved copper.
Data Reference: Data for Various Pollutants in California Marinas, 2006.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses. Table 3.3A lists a site specific objective (SSO) for criteria continuous concentration of dissolved copper.The SSO for dissolved copper in this portion of the Central San Francisco Bay is 6.0 ug/L.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: A total of four separate grab samples were collected at the same sampling event from outside three marina basins (Berkeley, Loch Lomond, and San Francisco). The four grab samples were averaged into one result.
Temporal Representation: Samples were collected on three separate sampling events during the dry season (July - October) in 2006.
Environmental Conditions: Samples were collected during the dry season only.
QAPP Information: Samples were collected and analyzed in accordance with a Quality Assurance Project Plan that was prepared per State Water Resources Control Board Agreement No. 05-218-250 California Department of Pesticide Regulation, Sacramento, CA. (Available online at http://www.cdpr.ca.gov/docs/emon/surfwtr/protocols/qapp_study236.pdf)
QAPP Information Reference(s):
 
 
DECISION ID
97866
Region 2     
San Francisco Bay, Central
 
Pollutant: Cyanide
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of six samples exceed the guideline.

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 CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of six samples exceed the guideline and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1.
4. Pursuant to SECTION 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 97866, Cyanide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92814
 
Pollutant: Cyanide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Cyanide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: According to table 3-3C, the Cyanide site-specific objective for San Francisco Bay, Central is 2.9 ug/L.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 2 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41]
Temporal Representation: Data was collected over the time period 3/2/1993-9/14/1993.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97866, Cyanide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92816
 
Pollutant: Cyanide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Cyanide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The cyanide criteria for the protection of human health from consumption of organisms only is 220,000 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 2 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41]
Temporal Representation: Data was collected over the time period 3/2/1993-9/14/1993.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97866, Cyanide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92815
 
Pollutant: Cyanide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Cyanide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Cyanide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.001 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 2 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41]
Temporal Representation: Data was collected over the time period 3/2/1993-9/14/1993.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
97867
Region 2     
San Francisco Bay, Central
 
Pollutant: Endosulfan
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

Five lines of evidence are available in the administrative record to assess this pollutant. Zero of seventy-three samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of seventy-three samples exceed the OEHHA guideline and this number exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 97867, Endosulfan
Region 2     
San Francisco Bay, Central
 
LOE ID: 93627
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 5
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 5 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in shellfish tissue is 20,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were collected at BC21 on 9/5/2002, and at BC61 and BC10 on 9/5/2002 and 9/24/2003.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97867, Endosulfan
Region 2     
San Francisco Bay, Central
 
LOE ID: 95134
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 73
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 73 samples exceed the criterion for endosulfan. 27 samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in fish tissue is 13,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at fifteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97867, Endosulfan
Region 2     
San Francisco Bay, Central
 
LOE ID: 92825
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Endosulfan, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The total Endosulfan criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saltwater is 0.0087 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 6 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB001W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 97867, Endosulfan
Region 2     
San Francisco Bay, Central
 
LOE ID: 92823
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The result did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Total Endosulfan result was calculated by summing the results for Endosulfan I and Endosulfan II.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endosulfan (l and ll) in shellfish tissue is 20,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 97867, Endosulfan
Region 2     
San Francisco Bay, Central
 
LOE ID: 92824
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Endosulfan, Total.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The total Endosulfan criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saltwater is 0.0087 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 6 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB001W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98881
Region 2     
San Francisco Bay, Central
 
Pollutant: Endosulfan sulfate
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-five samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-five samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98881, Endosulfan sulfate
Region 2     
San Francisco Bay, Central
 
LOE ID: 92826
 
Pollutant: Endosulfan sulfate
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 55
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 55 samples exceed the criterion for Endosulfan Sulfate.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Endosulfan Sulfate criteria for the protection of human health from consumption of organisms only is 240 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 14 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 2/3/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98937
Region 2     
San Francisco Bay, Central
 
Pollutant: Endrin
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

Six lines of evidence are available in the administrative record to assess this pollutant. Zero of ninety-nine samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety-nine samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92830
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 50
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Endrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Endrin criteria for the protection of human health from consumption of organisms only is 0.81ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 14 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 8/17/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92829
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Endrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0023 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 11 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 8/17/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92828
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Endrin.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Endrin criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0023 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 11 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 8/17/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 95102
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 99
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 99 samples exceed the criterion for endrin. One sample was discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endrin in fish tissue is 660 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at fourteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 93628
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endrin in shellfish tissue is 1,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98937, Endrin
Region 2     
San Francisco Bay, Central
 
LOE ID: 92827
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The result did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for endrin in shellfish tissue is 1,000 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
 
DECISION ID
98992
Region 2     
San Francisco Bay, Central
 
Pollutant: Ethion
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

One line of evidence is available in the administrative record to assess this pollutant. Zero of twenty samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of twenty samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98992, Ethion
Region 2     
San Francisco Bay, Central
 
LOE ID: 95071
 
Pollutant: Ethion
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 20
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 20 samples exceed the criterion for ethion. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for ethion in fish tissue is 1,100 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at two sites in Central San Francisco Bay.
Temporal Representation: The samples were collected in May and June 2000..
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
100140
Region 2     
San Francisco Bay, Central
 
Pollutant: Fluoranthene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-nine samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-nine samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 100140, Fluoranthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92832
 
Pollutant: Fluoranthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for Fluoranthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The available data for Fluoranthene indicate that chronic toxicity to saltwater aquatic life occurs at concentrations as low as 16 ug/Land would occur at lower concentrations among species that are more sensitive than those tested. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100140, Fluoranthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92831
 
Pollutant: Fluoranthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 57
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 57 samples exceed the criterion for Fluoranthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The available data for Fluoranthene indicate that chronic toxicity to saltwater aquatic life occurs at concentrations as low as 16 ug/Land would occur at lower concentrations among species that are more sensitive than those tested. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100140, Fluoranthene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92833
 
Pollutant: Fluoranthene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 59
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 59 samples exceed the criterion for Fluoranthene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Fluoranthene criteria for the protection of human health from consumption of organisms only is 370 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 17 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99049
Region 2     
San Francisco Bay, Central
 
Pollutant: Fluorene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of forty-one samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of forty-one samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99049, Fluorene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92834
 
Pollutant: Fluorene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 41
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 41 samples exceed the criterion for Fluorene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Fluorene criteria for the protection of human health from consumption of organisms only is 14,000 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB006W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 2/7/1996-7/14/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98994
Region 2     
San Francisco Bay, Central
 
Pollutant: Heptachlor
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98994, Heptachlor
Region 2     
San Francisco Bay, Central
 
LOE ID: 92837
 
Pollutant: Heptachlor
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 38
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 38 samples exceed the criterion for Heptachlor.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor criteria for the protection of human health from consumption of organisms only is 0.00021 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 5 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB011W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98994, Heptachlor
Region 2     
San Francisco Bay, Central
 
LOE ID: 92836
 
Pollutant: Heptachlor
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 50
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Heptachlor.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0036 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 11 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98994, Heptachlor
Region 2     
San Francisco Bay, Central
 
LOE ID: 92835
 
Pollutant: Heptachlor
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 50
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Heptachlor.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0036 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 11 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
100139
Region 2     
San Francisco Bay, Central
 
Pollutant: Heptachlor epoxide
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Six lines of evidence are available in the administrative record to assess this pollutant. Zero of fifty-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92839
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 54 samples exceed the criterion for Heptachlor Epoxide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor Epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0036 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 2/3/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 93629
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 46
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 46 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. Five samples were not used in the assessment because the laboratory data reporting limit(s) weres above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in shellfish tissue is 1.4 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92838
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The result did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California's Ocean Plan states that, "The concentration of organic materials in fish, shellfish or other marine resources used for human consumption shall not bioaccumulate to levels that are harmful to human health".
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in shellfish tissue is 1.4 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92840
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 54 samples exceed the criterion for Heptachlor Epoxide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor Epoxide criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0036 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 2/3/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 95085
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 49
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 50 samples exceed the criterion for Heptachlor epoxide. Sixty-eight samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for heptachlor epoxide in fish tissue is 0.93 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1999)
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
Guideline Reference: Public Health Goal for Heptachlor and Heptachlor Epoxide in Drinking Water
 
Spatial Representation: The samples were collected at fifteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100139, Heptachlor epoxide
Region 2     
San Francisco Bay, Central
 
LOE ID: 92841
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 53
Number of Exceedances: 1
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 1 of 53 samples exceed the criterion for Heptachlor Epoxide.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Heptachlor Epoxide criteria for the protection of human health from consumption of organisms only is 0.00011 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 13 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W]
Temporal Representation: Data was collected over the time period 2/3/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98875
Region 2     
San Francisco Bay, Central
 
Pollutant: Hexachlorobenzene/ HCB
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant. Zero of ninety-nine samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety-nine samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98875, Hexachlorobenzene/ HCB
Region 2     
San Francisco Bay, Central
 
LOE ID: 95081
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 99
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 99 samples exceed the criterion for hexachlorobenzene. One sample was discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in fish tissue is 2.8 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 2005)
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: The samples were collected at fourteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98875, Hexachlorobenzene/ HCB
Region 2     
San Francisco Bay, Central
 
LOE ID: 92842
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The results did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in shellfish tissue is 4.3 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2005)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 98875, Hexachlorobenzene/ HCB
Region 2     
San Francisco Bay, Central
 
LOE ID: 92843
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 41
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 41 samples exceed the criterion for Hexachlorobenzene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Hexachlorobenzene criteria for the protection of human health from consumption of organisms only is 0.00077 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 5 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W]
Temporal Representation: Data was collected over the time period 3/3/1993-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98875, Hexachlorobenzene/ HCB
Region 2     
San Francisco Bay, Central
 
LOE ID: 93630
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for hexachlorobenzene in shellfish tissue is 4.3 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2005)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
98877
Region 2     
San Francisco Bay, Central
 
Pollutant: Lead
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero of ninety samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 98877, Lead
Region 2     
San Francisco Bay, Central
 
LOE ID: 92844
 
Pollutant: Lead
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 90
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 90 samples exceed the criterion for Lead.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0081 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 98877, Lead
Region 2     
San Francisco Bay, Central
 
LOE ID: 92845
 
Pollutant: Lead
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 90
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 90 samples exceed the criterion for Lead.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved lead criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0081 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99103
Region 2     
San Francisco Bay, Central
 
Pollutant: Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero of fifty-four samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-four samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99103, Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
Region 2     
San Francisco Bay, Central
 
LOE ID: 93631
 
Pollutant: Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 51
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 51 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for lindane in shellfish tissue is 7.1 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2005)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99103, Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92846
 
Pollutant: Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The result did not exceed the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for lindane in shellfish tissue is 7.1 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 2005)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Air Toxics Hotspots Program Risk Assessment Guidelines. Part ll Technical Support Document for Describing Available Cancer Potency Values.
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
 
DECISION ID
99104
Region 2     
San Francisco Bay, Central
 
Pollutant: Manganese
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of thirty-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of thirty-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99104, Manganese
Region 2     
San Francisco Bay, Central
 
LOE ID: 92847
 
Pollutant: Manganese
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 34
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 34 samples exceed the criterion for Manganese.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Manganese criteria for the protection of human health from the consumption of organisms only is 100 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The Lead criteria for the protection of human health from fish consumption only is 100 ug/L (National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 2/3/2000-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99105
Region 2     
San Francisco Bay, Central
 
Pollutant: Mirex
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Six lines of evidence are available in the administrative record to assess this pollutant. Zero of forty-seven samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of forty-seven samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 92769
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Mirex.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The Mirex criteria for the protection of human health from consumption of organisms only is 0.000097 ug/L (National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 8 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB017W, Central Bay - CB019W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 95228
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Mirex. 119 samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for mirex in fish tissue is 0.28 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008; OEHHA, 1992)
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
Guideline Reference: Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens.
 
Spatial Representation: The samples were collected at fourteen sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through June 2006.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 92770
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Mirex.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The USEPA Gold Book states 0.001 ug/L for the protection of freshwater and marine aquatic life. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 7 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 92768
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The non detect result was not included in the assessment since the reporting limit was above the evaluation guideline. MDL were provided by NOAA Federal and RL were calculated by multiplying 3.18 by the MDL.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for mirex in shellfish tissue is 0.43 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 1992)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens.
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 2/4/2009
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 93632
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 17
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 17 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Thirty-four samples were not used in the assessment because the laboratory data reporting limit(s) were above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for mirex in shellfish tissue is 0.43 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; OEHHA, 1992)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens.
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99105, Mirex
Region 2     
San Francisco Bay, Central
 
LOE ID: 92771
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 47
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 47 samples exceed the criterion for Mirex.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The USEPA Gold Book states 0.001 ug/L for the protection of freshwater and marine aquatic life. (USEPA Gold Book - EPA 440/5-86-001)
Guideline Reference: Quality Criteria for Water 1986. United States Environmental Protection Agency. Office of Water. Regulations and Standards. Washington D.C. EPA 440/5-86-001.
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 7 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB023W, Central Bay - CB003W]
Temporal Representation: Data was collected over the time period 4/20/1994-8/13/2007.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
100141
Region 2     
San Francisco Bay, Central
 
Pollutant: Nickel
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of ninety-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of ninety-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 100141, Nickel
Region 2     
San Francisco Bay, Central
 
LOE ID: 92774
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Nickel.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Nickel criteria for the protection of human health from consumption of organisms only is 4.6 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100141, Nickel
Region 2     
San Francisco Bay, Central
 
LOE ID: 92772
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Nickel.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0082 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 17 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100141, Nickel
Region 2     
San Francisco Bay, Central
 
LOE ID: 92773
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Nickel.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved nickel criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.0082 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 17 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB011W, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB017W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB009W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB019W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99152
Region 2     
San Francisco Bay, Central
 
Pollutant: Oxygen, Dissolved
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 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. Zero of thirty-six samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of thirty-six samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99152, Oxygen, Dissolved
Region 2     
San Francisco Bay, Central
 
LOE ID: 92775
 
Pollutant: Oxygen, Dissolved
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 36
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Numeric data generated from 36 minimum samples of Dissolved Oxygen concentrations had no exceedences.
Data Reference: Data for Various Pollutants in California Marinas, 2006.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved oxygen content of bays/estuaries downstream of the Carquinez Bridge must be above 5 mg/L.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from the following stations: Berkeley Marina 5.1 Berkeley Marina 5.2 Berkeley Marina 5.3 Berkeley Marina 6.1 Berkeley Marina 6.2 Berkeley Marina 6.3 Berkeley Marina 7.1 Berkeley Marina 7.2 Berkeley Marina 7.3 Berkeley Marina 8.1 Berkeley Marina 8.2 Berkeley Marina 8.3 Loch Lomond Marina 5.1 Loch Lomond Marina 5.2 Loch Lomond Marina 5.3 Loch Lomond Marina 6.1 Loch Lomond Marina 6.2 Loch Lomond Marina 6.3 Loch Lomond Marina 7.1 Loch Lomond Marina 7.2 Loch Lomond Marina 7.3 Loch Lomond Marina 8.1 Loch Lomond Marina 8.2 Loch Lomond Marina 8.3 San Francisco Marina 5.1 San Francisco Marina 5.2 San Francisco Marina 5.3 San Francisco Marina 6.1 San Francisco Marina 6.2 San Francisco Marina 6.3 San Francisco Marina 7.1 San Francisco Marina 7.2 San Francisco Marina 7.3 San Francisco Marina 8.1 San Francisco Marina 8.2 San Francisco Marina 8.3
Temporal Representation: Samples were collected on the following dates: 7/24/2006 7/25/2006 7/26/2006 8/21/2006 8/22/2006 8/23/2006 9/18/2006 9/19/2006 9/20/2006
Environmental Conditions:
QAPP Information: Samples were collected and analyzed in accordance with a Quality Assurance Project Plan that was prepared per State Water Resources Control Board Agreement No. 05-218-250 California Department of Pesticide Regulation, Sacramento, CA. (Available online at http://www.cdpr.ca.gov/docs/emon/surfwtr/protocols/qapp_study236.pdf)
QAPP Information Reference(s):
 
 
DECISION ID
99611
Region 2     
San Francisco Bay, Central
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 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. Zero of fifty-five samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-five samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99611, PAHs (Polycyclic Aromatic Hydrocarbons)
Region 2     
San Francisco Bay, Central
 
LOE ID: 93672
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 52
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Zero of the fifty-two samples exceeded the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Laboratory replicates were averaged. The total PAHs were calculated as the potency equivalency concentration or the sum of the toxic equivalency factors multiplied by the concentrations of: Acenaphthene, Acenaphthylene, Anthracene, Benz[a]anthracene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, Dibenzo[a,h]anthracene, Chrysene, Fluoranthene, Fluorene, Indeno[1,2,3-c,d]pyrene, Phenanthrene, and Pyrene.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Advisory Tissue Level for polycyclic aromatic hydrocarbons in shellfish tissue is 110 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in ten thousand. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)

Advisory Tissue Levels (ATLs), while still conferring no significant health risk to
individuals consuming sport fish in the quantities shown over a lifetime, were developed
with the recognition that there are unique health benefits associated with fish
consumption and that the advisory process should be expanded beyond a simple risk
paradigm in order to best promote the overall health of the fish consumer. ATLs provide
a number of recommended fish servings that correspond to the range of contaminant
concentrations found in fish and are used to provide consumption advice to prevent
consumers from being exposed to more than the average daily reference dose for noncarcinogens
or to a risk level greater than 1x10-4 for carcinogens (not more than one
additional cancer case in a population of 10,000 people consuming fish at the given
consumption rate over a lifetime). ATLs are designed to encourage consumption of fish
that can be eaten in quantities likely to provide significant health benefits, while
discouraging consumption of fish that, because of contaminant concentrations, should not
be eaten or cannot be eaten in amounts recommended for improving overall health (eight
ounces total, prior to cooking, per week). ATLs are one of the criteria that will be used
by OEHHA for issuing fish consumption guidelines.
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during most fall seasons during years 2000 - 2008. Samples collected at BC21 through year 2002. Samples collected at BC10 and BC61 through year 2008.
Temporal Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 99611, PAHs (Polycyclic Aromatic Hydrocarbons)
Region 2     
San Francisco Bay, Central
 
LOE ID: 95069
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 22
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 22 samples exceed the criterion for polyaromatic hydrocarbons. No samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for polycyclic aromatic hydrocarbons in fish tissue is 0.7 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: The samples were collected at eight sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected in May 1994.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99611, PAHs (Polycyclic Aromatic Hydrocarbons)
Region 2     
San Francisco Bay, Central
 
LOE ID: 92776
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 3
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: Zero of three samples exceeded the guideline. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. The total PAHs were calculated as the potency equivalency concentration or the sum of the toxic equivalency factors multiplied by the concentrations of: Acenaphthene, Acenaphthylene, Anthracene, Benz[a]anthracene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[g,h,i]perylene, Benzo[k]fluoranthene, Dibenzo[a,h]anthracene, Chrysene, Fluoranthene, Fluorene, Indeno[1,2,3-c,d]pyrene, Phenanthrene, and Pyrene.
Data Reference: State Mussel Watch Program Data 1977-2000; Winter 2007-Winter 2009. State Water Resources Control Board
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish and other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Advisory Tissue Level for polycyclic aromatic hydrocarbons in shellfish tissue is 110 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in ten thousand. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)

Advisory Tissue Levels (ATLs), while still conferring no significant health risk to
individuals consuming sport fish in the quantities shown over a lifetime, were developed
with the recognition that there are unique health benefits associated with fish
consumption and that the advisory process should be expanded beyond a simple risk
paradigm in order to best promote the overall health of the fish consumer. ATLs provide
a number of recommended fish servings that correspond to the range of contaminant
concentrations found in fish and are used to provide consumption advice to prevent
consumers from being exposed to more than the average daily reference dose for noncarcinogens
or to a risk level greater than 1x10-4 for carcinogens (not more than one
additional cancer case in a population of 10,000 people consuming fish at the given
consumption rate over a lifetime). ATLs are designed to encourage consumption of fish
that can be eaten in quantities likely to provide significant health benefits, while
discouraging consumption of fish that, because of contaminant concentrations, should not
be eaten or cannot be eaten in amounts recommended for improving overall health (eight
ounces total, prior to cooking, per week). ATLs are one of the criteria that will be used
by OEHHA for issuing fish consumption guidelines.
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
 
Spatial Representation: Samples are collected by hand from three sub-locations for each site. The composite samples were collected from sites San Francisco Bay Emeryville (SFEM) and two separate years from site San Francisco Bay Yerba Buena Island (SFYB).
Temporal Representation: Representative samples of locally abundant species were collected during the winter on 12/22/2007, 12/8/2008, and 2/4/2009.
Environmental Conditions:
QAPP Information: Samples were collected as part of the State Water Board's Mussel Watch Program which is a part of the National Oceanic Administration's (NOAAs) National Status and Trends (NS&T). Mussels are shipped to NOAAs contract labs for analysis of trace constituents and mussel condition. Analytical protocols follow those approved by NOAAs NS&T Program Additional background information can be found at:
http://ccma.nos.noaa.gov/stressors/pollution/nsandt/
QAPP Information Reference(s):
 
 
DECISION ID
68585
Region 2     
San Francisco Bay, Central
 
Pollutant: Polybrominated Diphenyl Ethers (PBDEs)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for listing under sections 2.1 and 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant. Based on section 3.5, some data are available showing concentrations of this pollutant in animal tissues. It cannot be determined if the pollutant is likely to cause or contribute to the adverse effects because a numeric guideline or water quality objective is not available. Based on the readily available data and information, the weight of evidence indicates that there is not 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. An evaluation guideline is not available that complies with the requirements of section 6.1.3 of the Policy. 2. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 68585, Polybrominated Diphenyl Ethers (PBDEs)
Region 2     
San Francisco Bay, Central
 
LOE ID: 6
 
Pollutant: Polybrominated Diphenyl Ethers (PBDEs)
LOE Subgroup: Pollutant-Tissue
Matrix: Not Specified
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 2004 List Comments:

Numeric information, along with circumstantial, anecdotal, and non-specific referenced evidence, was submitted in 2004 with the request that the San Francisco Bay (presumably San Pablo Bay; San Francisco Bay, Central; San Francisco Bay, South; San Francisco Bay, Lower; and/or Suisun Bay) be listed for the PBDE family of flame retardant chemicals.

Studies based on findings from other states and other countries (Sweden) cannot, by themselves, provide sufficient evidence to list a pollutant for a California water body. Instead, this data provides background information only.

Data on contamination by PBDEs of human (breast) tissue from residents in and around the Bay is not usable for listing those water bodies due to the fact that there is no way to meaningfully link such contamination directly to water quality and to a particular water body. The presence of PBDEs in eggs and seal tissues is also inadequate to list a water body.

The report does not specify where bird's nests and seal carcasses were sampled in relation to the five Bay area water bodies. Even if specific sample sites were included, it would be difficult to determine the relationship between the presence of PBDEs in the tissues of a widely ranging species, and the water of a specific water body. It is easier to establish this link when the tissues of filter-feeding organisms (e.g., mussels and clams) or organisms that forage locally are exclusively used.

While some data presented was from local fish species, the volume and reliability of the data is questionable. Leopard shark, halibut, striped bass, and other species may move considerable distances before being captured, making it difficult to establish a relationship between pollutants in tissue and the water body of capture. The 'tainted catch' report states: 'PBDE levels varied widely among fish species and between individuals of the same species in part due to location in the Bay.'
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Basin Plan Narrative Objectives:

"Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish or other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered."

"Controllable water quality factors shall not cause a detrimental increase in the concentrations of toxic pollutants in sediments or aquatic life."
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline: None available.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Unknown.
Temporal Representation: Multiple studies are cited ( She et al., 2002). PBDEs in the San Francisco Bay Area: measurements in harbor seal blubber and human breast adipose tissue. Chemosphere 46(2002): 697-707; Petreas et al., 2003. High Body Burdens of 2,2',4,4'-Tetrabromodiphenyl Ether (BDE-47) in California Women. Environ. Heath Perspect. 111(9): 1175-1179; She et al., 2003. High PBDE Levels in Shorebird Eggs from the San Francisco Bay and Washington State. Proceedings. 2003 Georgia Basin/Puget Sound Research Conference.
Environmental Conditions:
QAPP Information: QA Info Missing
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 68585, Polybrominated Diphenyl Ethers (PBDEs)
Region 2     
San Francisco Bay, Central
 
LOE ID: 7
 
Pollutant: Polybrominated Diphenyl Ethers (PBDEs)
LOE Subgroup: Testimonial Evidence
Matrix: -N/A
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 2002 List Fact Sheet Information:

PBDEs research literature will be reviewed by the RWQCB to ascertain any new information on actual effects thresholds for these persistent bioaccumulative substances in the next listing cycle. These actions can be conducted regionally through the RMP, the Bay Area Pollution Prevention Group, or other association of dischargers. During the subsequent listing cycle, RWQCB staff evaluation of current research, applicable water quality criteria, and local actions to characterize sources and pollution prevention of PBDEs will determine whether a listing is needed.
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Basin Plan Narrative Objectives:

"Many pollutants can accumulate on particles, in sediment, or bioaccumulate in fish or other aquatic organisms. Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered."

"Controllable water quality factors shall not cause a detrimental increase in the concentrations of toxic pollutants in sediments or aquatic life."
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation:
Temporal Representation:
Environmental Conditions:
QAPP Information: QA Info Missing
QAPP Information Reference(s):
 
 
DECISION ID
99154
Region 2     
San Francisco Bay, Central
 
Pollutant: Pyrene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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. Zero of fifty-four samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of fifty-four samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99154, Pyrene
Region 2     
San Francisco Bay, Central
 
LOE ID: 92787
 
Pollutant: Pyrene
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 54
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 54 samples exceed the criterion for Pyrene.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Pyrene criteria for the protection of human health from consumption of organisms only is 11,000 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 16 monitoring sites [ Yerba Buena Island - BC10, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/3/1993-7/14/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
100142
Region 2     
San Francisco Bay, Central
 
Pollutant: Silver
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero of seventy-five samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of seventy-five samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 100142, Silver
Region 2     
San Francisco Bay, Central
 
LOE ID: 92791
 
Pollutant: Silver
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Marine Habitat
 
Number of Samples: 75
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 75 samples exceed the criterion for Silver.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved silver criterion maximum concentration to protect aquatic life in saline water is 0.0019 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 14 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB007W, Central Bay - CB006W, Central Bay - CB005W, Central Bay - CB021W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB001W, Central Bay - CB023W, Central Bay - CB015W, Central Bay - CB003W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 100142, Silver
Region 2     
San Francisco Bay, Central
 
LOE ID: 92993
 
Pollutant: Silver
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 75
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 75 samples exceed the criterion for Silver.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved silver criterion maximum concentration to protect aquatic life in saline water is 0.0019 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 14 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99208
Region 2     
San Francisco Bay, Central
 
Pollutant: Toxaphene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.
Two lines of evidence are available in the administrative record to assess this pollutant. Zero of zero samples exceed the OEHHA guideline.

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 CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of zero samples exceed the OEHHA guideline and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is fully supported using table 3.1.
4. Pursuant to SECTION 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99208, Toxaphene
Region 2     
San Francisco Bay, Central
 
LOE ID: 95123
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Fish fillet
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Fish tissue analysis
Data Used to Assess Water Quality: Water Board staff assessed Regional Monitoring Program data for Central San Francisco Bay to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for toxaphene. Eighty-nine samples were discarded for being non-detect, unquantifiable or the reporting limit exceeding the water quality objective.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for toxaphene in fish tissue is 4.3 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 32 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. A cooking reduction factor of 1 is applied for skin-off fillets. (Klasing, S., and R. Brodberg, 2008)
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: The samples were collected at eleven sites throughout Central San Francisco Bay.
Temporal Representation: The samples were collected every three years from May 1994 through August 2003.
Environmental Conditions:
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99208, Toxaphene
Region 2     
San Francisco Bay, Central
 
LOE ID: 93633
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: The five samples were not used in the assessment because the laboratory data reporting limit(s) were above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. All composite samples were comprised of Mytilus californianus.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for toxaphene in shellfish tissue is 6.5 ppb. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day for a 30 year exposure over a 70-year lifetime. This constituent is a carcinogen therefore the risk level is set to one in a million. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
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: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were collected at BC21 on 9/5/2002, and at BC10 and BC61 on 9/5/2002 and 9/24/2003.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99375
Region 2     
San Francisco Bay, Central
 
Pollutant: Toxicity
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Twenty-nine of eighty-five sediment toxicity samples exceed the evaluation guideline. Zero of twenty-four water column toxicity samples exceed the evaluation guideline

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. As explained in findings 3 and 4, the sediment toxicity data used do not satisfy the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfy the data quantity requirements of section 6.1.5 of the Policy.
3. The Regional Board identified concerns about evaluating sediment quality based solely on toxicity data without consideration of sediment chemistry and benthic community condition; all three lines of evidence are referred to as the sediment quality triad. While the State has sediment quality objectives that incorporate all three lines of evidence (sediment chemistry, toxicity and benthic community condition), and these data exist for this waterbody, they could not be considered at this time because they were not available during the solicitation period. SQO data will be considered in future listing cycles. See also finding 8 below.

4 The Regional Board and general public identified concerns about the quality of toxicity data for which the amphipod Eohaustorius estuarius was the test organism because peer-reviewed scientific literature has revealed that this test organism can be impacted by the presence of naturally occurring clay in the sample, which is common in many Bay sediments.
5. Twenty-nine of eighty-five sediment toxicity samples exceed the guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy, but these data are not considered sufficient information on which to base a defensible listing determination for toxicity as described in findings 3 and 4.
6. Zero of twenty-four samples exceed the water column toxicity evaluation guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
7. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

8. The Listing Policy requires listing for toxicity only if the toxicity is associated with a pollutant, but the Policy provides the Regional Boards the option to list in circumstances in which the toxicity is not associated with a pollutant. Based on the data quantity and quality concerns summarized in findings 3 and 4, the Regional Board does not recommend listing this waterbody for toxicity.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99375, Toxicity
Region 2     
San Francisco Bay, Central
 
LOE ID: 95751
 
Pollutant: Toxicity
LOE Subgroup: Toxicity
Matrix: Water
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 24
Number of Exceedances: 0
 
Data and Information Type: TOXICITY TESTING
Data Used to Assess Water Quality: Zero of the 24 samples exhibited toxicity. A sample may have multiple toxicity test results but will be counted only once. A sample is defined as being collected on the same day at the same location with the same lab sample id (if provided).

The following test organisms and parameters were utilized for the toxicity tests: Thalassiosira pseudonana (cell count), 1993; Crassostrea gigas (mean % normal development),1993; Mytilus edulis (mean % normal development), 1993-1996; Americamysis bahia - formerly Mysidopsis bahia (mean % survival), 1994-96, 2002, and 2007.

Additional results were not included in the assessment due to control results of less than 90 percent for test parameter.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2)
 
Evaluation Guideline: Toxicity is defined as a significant reduction of test organism relative to the control (alpha < 0.05) and test organism survival is 80% or less than the control survival (at least 20% effect).
Guideline Reference: SWAMP_Memo_Toxicity_Data_Intrepretation
Guideline Reference: Method 1007.0: Mysid, Mysidopsis bahia, Survival, Growth, and Fecundity Test; Chronic Toxicity. Excerpt from: Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Marine and Estuarine Organisms. 3rd edition EPA-821-R-02-014
Guideline Reference: Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Water to Marine and Estuarine Organisms. EPA/600/4-91-003.
 
Spatial Representation: Samples were collected at sites BB70, BC10, BC60, CB001W, and CB021W
Temporal Representation: The samples were collected twice each year (generally winter and summer) from 1993-96, 2002, and 2007.
Environmental Conditions:
QAPP Information: Data collected after 1999 follows the San Francisco Estuary Institute 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99375, Toxicity
Region 2     
San Francisco Bay, Central
 
LOE ID: 95805
 
Pollutant: Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: None
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 85
Number of Exceedances: 29
 
Data and Information Type: TOXICITY TESTING
Data Used to Assess Water Quality: Twenty-nine of the 85 samples exhibited toxicity. A sample may have multiple toxicity test results but will be counted only once. A sample is defined as being collected on the same day at the same location with the same lab sample id (if provided).

The following test organisms and parameters were utilized for the toxicity tests: Eohaustorius estuarius (mean % survival),1993-2008; Mytilus edulis (mean % normal alive), 1993-97; Mytilus galloprovincialis (mean % normal alive), 1998-2001, 2005-08; and Strongylocentrotus purpuratus (mean % normal development), 1998.

The following samples exhibited toxicity: Eohaustorius estuarius collected during 1993, and 1995-2008; Mytilus edulis collected 1995; and Mytilus galloprovincialis collected 1998, 2005 and 2007-08. Additional results were not included in the assessment due to control results of less than 90 percent for test parameter.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in, human, plant, animal, or aquatic life. Region 2 Basin Plan.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - San Francisco Bay Region (Region 2)
 
Evaluation Guideline: Toxicity is defined as a significant reduction of test organism relative to the control (alpha < 0.01) and test organism survival is 80% or less than the control survival (at least 20% effect).
Guideline Reference: SWAMP_Memo_Toxicity_Data_Intrepretation
Guideline Reference: Methods for Assessing the Toxicity of Sediment-associated Contaminants with Estuarine and Marine Amphipods. June 1994. EPA 600/R-94/025
Guideline Reference: Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to West Coast Marine and Estuarine Organisms. EPA/600/R-95-136.
 
Spatial Representation: Samples were collected at sites BC21, BC60, BC11, BB70, CB001S, CB004S, CB005S, CB007S, CB011S, CB013S, CB021S, CB023S, CB025S, CB027S, CB029S, CB037S, CB039S, CB075S, and CB077S.
Temporal Representation: The samples were collected twice each year (winter and summer) from 1993, 1995 - 1999 and the summers of 2000 - 2008.
Environmental Conditions:
QAPP Information: Data collected after 1999 follows the San Francisco Estuary Institute 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
100185
Region 2     
San Francisco Bay, Central
 
Pollutant: Tributyltin TBT (Tributylstanne)
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA section 303(d) List under section 3.5 of the Listing Policy. Under section 3.5 a single line of evidence is necessary to assess listing status.

One line of evidence is available in the administrative record to assess this pollutant. Zero of thirty-eight samples exceed the guideline.

Based on the readily available data and information, the weight of evidence indicates that there is not sufficient justification in favor of placing this water segment-pollutant combination on the CWA section 303(d) List.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of thirty-eight samples exceed the OEHHA guideline and this number does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. There is not a fish consumption advisory in effect for this waterbody.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 100185, Tributyltin TBT (Tributylstanne)
Region 2     
San Francisco Bay, Central
 
LOE ID: 93691
 
Pollutant: Tributyltin TBT (Tributylstanne)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: Shellfish
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 38
Number of Exceedances: 0
 
Data and Information Type: Shellfish surveys
Data Used to Assess Water Quality: None of the 38 samples exceeded the guideline. All composite samples were comprised of Mytilus californianus. Data were reported on a dry weight basis and were converted to a wet weight basis by multiplying the dry-weight concentration by a factor of 1 minus the percentage of moisture content expressed as a decimal. Three samples were not used in the assessment because the laboratory data reporting limit was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. Laboratory replicates were averaged. If a dry weight result did not have a corresponding moisture result for conversion to wet weight, the sample was not included in the assessment.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Water Quality Control Plan for the San Francisco Bay Basin: Controllable water quality factors shall not cause a detrimental increase in concentrations of toxic substances found in bottom sediments or aquatic life. Effects on aquatic organisms, wildlife, and human health will be considered.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The modified OEHHA Fish Contaminant Goal for tributyltin in shellfish tissue is 1 ppm. This screening level assumes an average body weight of 70 kg and a consumption rate of 21 g/day. (Brodberg, R.K., and G.A. Pollock, 1999; Klasing, S., and R. Brodberg, 2008; USEPA, 2000)
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
Guideline Reference: Guidance for Assessing Chemical Contaminant Data for Use In Fish Advisories Volume 1: Fish Sampling and Analysis
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Samples were collected at the following stations: BC21 - Horseshoe Bay, BC61 - Red Rock and BC10 - Yerba Buena Island.
Temporal Representation: Samples were generally collected in spring and fall seasons from years 1993 - 1999 and then during fall of 2000 and 2001.
Environmental Conditions:
QAPP Information: 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
 
DECISION ID
99433
Region 2     
San Francisco Bay, Central
 
Pollutant: Zinc
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the CWA 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.

Four lines of evidence are available in the administrative record to assess this pollutant. Zero of one hundred two samples exceed the guideline.

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 CWA section 303(d) List in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of one hundred two samples exceed the guideline 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.
 
Regional Board Decision 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 99433, Zinc
Region 2     
San Francisco Bay, Central
 
LOE ID: 92884
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Total
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 94
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 94 samples exceed the criterion for Zinc.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline: The Zinc criteria for the protection of human health from consumption of fish only is 26000 ug/L (National Recommended Water Quality Criteria, 2009).
Guideline Reference: National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances was used.
QAPP Information Reference(s): 1999 Quality Assurance Project Plan Regional Monitoring Program for Trace Substances
 
Line of Evidence (LOE) for Decision ID 99433, Zinc
Region 2     
San Francisco Bay, Central
 
LOE ID: 92887
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 9
Number of Exceedances: 0
 
Data and Information Type: Fixed station physical/chemical (conventional plus toxic pollutants)
Data Used to Assess Water Quality: None of the nine samples exceeded the CTR value of 81 ug/L for dissolved zinc in saline water.
Data Reference: Data for Various Pollutants in California Marinas, 2006.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses. California Toxics Rule (CTR) lists criterion continuous concentrations to protect aquatic life in saline water. The CTR value is 81 ug/L.
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) San Francisco Bay Basin (Region 2)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: A total of four separate grab samples were collected at the same sampling event from outside three marina basins (Berkeley, Loch Lomond, and San Francisco). The four grab samples were averaged into one result.
Temporal Representation: Samples were collected on three separate sampling events during the dry season (July - October) in 2006.
Environmental Conditions: Samples were collected during the dry season only.
QAPP Information: Samples were collected and analyzed in accordance with a Quality Assurance Project Plan that was prepared per State Water Resources Control Board Agreement No. 05-218-250 California Department of Pesticide Regulation, Sacramento, CA. (Available online at http://www.cdpr.ca.gov/docs/emon/surfwtr/protocols/qapp_study236.pdf)
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 99433, Zinc
Region 2     
San Francisco Bay, Central
 
LOE ID: 92886
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Dissolved
 
Beneficial Use: Estuarine Habitat
 
Number of Samples: 93
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: State Water Board staff assessed SFEI data for San Francisco Bay, Central to determine beneficial use support and results are as follows: 0 of 93 samples exceed the criterion for Zinc.
Data Reference: Regional Monitoring Program data, Feb. 1993-Sep. 2008
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The dissolved zinc criterion continuous concentration (expressed as a 4-day average) to protect aquatic life in saline water is 0.081 mg/L (California Toxics Rule, 2000).
Objective/Criterion Reference: Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for San Francisco Bay, Central was collected at 18 monitoring sites [ Yerba Buena Island - BC10, Point Isabel - BC41, Red Rock - BC60, Central Bay - CB001W, Central Bay - CB003W, Central Bay - CB005W, Central Bay - CB006W, Central Bay - CB007W, Central Bay - CB008W, Central Bay - CB009W, Central Bay - CB011W, Central Bay - CB013W, Central Bay - CB015W, Central Bay - CB017W, Central Bay - CB019W, Central Bay - CB021W, Central Bay - CB023W, Central Bay - CB025W]
Temporal Representation: Data was collected over the time period 3/2/1993-7/15/2008.
Environmental Conditions: Staff is not aware of any