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

Supporting Information

Regional Board 3 - Central Coast Region

Water Body Name: Pacific Ocean at Toro Beach
Water Body ID: CAC3101801020100622151648
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
75799
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 75799, Chlorpyrifos
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14873
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Chlorpyrifos.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Chlorpyrifos is 10000.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75799, Chlorpyrifos
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14857
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Chlorpyrifos.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Chlorpyrifos is 10,000 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
75846
Region 3     
Pacific Ocean at Toro Beach
 
Pollutant: Diazinon
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 75846, Diazinon
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14894
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Diazinon.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Diazinon is 300.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75846, Diazinon
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14893
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Diazinon.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Diazinon is 300 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
76035
Region 3     
Pacific Ocean at Toro Beach
 
Pollutant: Dieldrin
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 76035, Dieldrin
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14915
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Dieldrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Dieldrin is 2.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 76035, Dieldrin
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14914
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Dieldrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Dieldrin is 2.0 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84065
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 84065, Endosulfan
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14933
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Endosulfan I.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Endoculfan is 20000.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
76258
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 76258, Endrin
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14954
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Endrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Endrin is 1000.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 76258, Endrin
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14953
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Endrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Policy For Developing California's Clean Water Act Section 303(d) List. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency.
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Endrin is 1,000 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
76303
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 76303, Heptachlor epoxide
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14974
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Heptachlor epoxide.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Heptachlor Epoxide is 4.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 76303, Heptachlor epoxide
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14973
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Heptachlor epoxide.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Total Heptachlor Epoxide is 4.0 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84066
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 84066, Hexachlorobenzene/ HCB
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14994
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Hexachlorobenzene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Total Hexachlorobenzene is 20 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 84066, Hexachlorobenzene/ HCB
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 14995
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Hexachlorobenzene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Hexachlorobenzene is 20.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
76259
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 76259, Mirex
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 15014
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Mirex.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Policy For Developing California's Clean Water Act Section 303(d) List. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency.
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the EPA screening value for Mirex is 800 ug/Kg wet weight (USEPA 2000)
Guideline Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 76259, Mirex
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 15015
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Mirex.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: USEPA Recommended Screening Values for target analytes - recreational fishers (Table 5-3 in USEPA 2000 (page 5-11)).
Objective/Criterion Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Evaluation Guideline: USEPA Screening Value in fish and shellfish tissue for Mirex is 800.0 ug/Kg
Guideline Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84105
Region 3     
Pacific Ocean at Toro Beach
 
Pollutant: PCBs (Polychlorinated biphenyls)
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 84105, PCBs (Polychlorinated biphenyls)
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 15730
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for PCB congener 195.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion:
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Total PCBs is 20.0 ppb 9ug/Kg or ng/g)
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 locations, considered by the Listing Policy as a single monitoring sites, because they are less than 200m apart. [ SCS02OOTB001 - Toro Beach at toro creek mouth, SCS02OOTB002 - Toro Beach at Toro Creek mouth south, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84106
Region 3     
Pacific Ocean at Toro Beach
 
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: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the 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 out of six sand crab tissue samples exceeded the evaluation guideline. 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 supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of six sand crab tissue samples exceeded the evaluation guideline. 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: 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 cycle. 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 84106, Toxaphene
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 15798
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
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: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Toxaphene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion 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
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for total Toxaphene is 30 ug/Kg wet weight (Brodberg and Pollock 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
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 84106, Toxaphene
Region 3     
Pacific Ocean at Toro Beach
 
LOE ID: 15799
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Toro Beach to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Toxaphene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion 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
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Toxaphene is 30.0 ug/Kg
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: Data for this line of evidence for Pacific Ocean at Toro Beach was collected at 6 monitoring sites [ SCS02OOTB001 - Toro Beach at river, SCS02OOTB002 - Toro Beach at river, SCS02OOTB003 - Toro Beach 100W of river, SCS02OOTB004 - Toro Beach 100W of river, SCS02OOTB005 - Toro Beach 100E of river, SCS02OOTB006 - Toro Beach 100E of river]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):