| Water Body Name: | Lafayette Reservoir |
| Water Body ID: | CAL2073201020050519182313 |
| Water Body Type: | Lake & Reservoir |
DECISION ID |
19168 |
Region 2 |
Lafayette Reservoir |
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| Pollutant: | Mercury |
| Final Listing Decision: | List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Original |
| Sources: | Source Unknown |
| Expected TMDL Completion Date: | 2013 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Region 2 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle. |
| Regional Board Decision Recommendation: | No new data were assessed for 2012. The decision has not changed. |
| State Board Staff 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. |
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| LOE ID: | 693 | ||||
| Pollutant: | Mercury | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
| Number of Samples: | 10 | ||||
| Number of Exceedances: | 5 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Five out of 10 samples exceeded. A total of 10 composite samples were collected and analyzed from Lafayette Reservoir - 3 black crappie, 1 channel catfish, 3 largemouth bass, and 3 goldfish. Three goldfish and two largemouth bass samples exceeded the guideline (TSMP, 2002). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | San Francisco Bay RWQCB Basin Plan: 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: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | 0.3 ug/g Hg - OEHHA Screening Value (Interim Health Advisory for Hg and PCB, Contra Costa County) (Brodberg and Pollock, 1999). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | One station located on the lake. | ||||
| Temporal Representation: | All samples were collected on 9/9/2002. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Environmental Chemistry Quality Assurance and Data Report for the Toxic Substances Monitoring Program, 2001-2002. Department of Fish and Game. | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
19169 |
Region 2 |
Lafayette Reservoir |
||
| Pollutant: | PCBs (Polychlorinated biphenyls) |
| Final Listing Decision: | List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Original |
| Sources: | Source Unknown |
| Expected TMDL Completion Date: | 2019 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Region 2 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle. |
| Regional Board Decision Recommendation: | No new data were assessed for 2008. The decision has not changed. |
| State Board Staff 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. |
|
|||||
| LOE ID: | 694 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
| Number of Samples: | 3 | ||||
| Number of Exceedances: | 2 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Two out of 3 samples exceeded. A total of 3 composite samples were collected and analyzed from Lafayette Reservoir - 1 each: channel catfish, goldfish, and largemouth bass. Channel catfish and goldfish samples exceeded guideline (TSMP, 2002). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | San Francisco Bay RWQCB Basin Plan: 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: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | 20.0 ng/g PCB - OEHHA Screening Value (Interim Health Advisory for Hg and PCB, Contra Costa County) (Brodberg and Pollock, 1999). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | One station located on the lake. | ||||
| Temporal Representation: | All samples were collected on 9/9/2002. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Environmental Chemical Quality Assurance and Data Report for the Toxic Substances Monitoring Program. 2001-2002. Department of Fish and Game. | ||||
| QAPP Information Reference(s): | |||||