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)(2010) |
Revision Status |
Original |
Reason for Delisting: |
Applicable WQS attained; reason for recovery unspecified |
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. |
|
|
Line of Evidence (LOE) for Decision ID 18674, Diazinon
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
471 |
|
Pollutant: |
Diazinon |
LOE Subgroup: |
Toxicity |
Matrix: |
Not Specified |
Fraction: |
None |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
|
Number of Exceedances: |
|
|
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. Moreover, the magnitude of toxicity (as reflected by the degree [or percentage] of test organism mortality) is also markedly reduced in the later years, again suggesting a reduction in the degree of ambient water toxicity. Subsequent RMP monitoring of ambient water toxicity in water samples collected from October 2001 through April 2003, also indicated an absence of toxicity to the test organisms. |
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: |
SFEI Regional Monitoring Program QAPP. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 18674, Diazinon
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
472 |
|
Pollutant: |
Diazinon |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Estuarine Habitat |
|
Number of Samples: |
|
Number of Exceedances: |
|
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
The maximum concentration observed in Regional Monitoring Program samples was 44 ng/L (mean 6.6 ng/L) (Ogle, 2004). |
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 (SFBRWQCB, 1995). |
Objective/Criterion Reference: |
Placeholder reference 2006 303(d) |
|
Evaluation Guideline: |
For salt water, USEPA has developed a draft water quality criteria of 400 ng/L (chronic) (USEPA, 2000). The use of these values may not comply wtih all the requirements of section 6.1.3 of the Listing Policy. |
Guideline Reference: |
Placeholder reference 2006 303(d) |
|
Spatial Representation: |
One station. |
Temporal Representation: |
Samples were collected between 1993 and 2001. |
Environmental Conditions: |
|
QAPP Information: |
SFEI Regional Monitoring Program QAPP (Lowe, S.R., et al., 1998) (Ogle, 2004). |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 18674, Diazinon
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
470 |
|
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 OP pesticide diazinon by the USEPA. |
Data Reference: |
Placeholder reference 2006 303(d) |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
|
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
QA Info Missing |
QAPP Information Reference(s): |
|
Pollutant: |
Chlordane |
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. |
|
|
Line of Evidence (LOE) for Decision ID 18360, Chlordane
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3724 |
|
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: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
Pollutant: |
DDT (Dichlorodiphenyltrichloroethane) |
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 Regional Board will update this decision when new data and information become available and are assessed. |
|
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. |
|
|
Line of Evidence (LOE) for Decision ID 18361, DDT (Dichlorodiphenyltrichloroethane)
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3725 |
|
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): |
|
Pollutant: |
Dieldrin |
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. |
|
|
Line of Evidence (LOE) for Decision ID 19888, Dieldrin
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3726 |
|
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: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
Pollutant: |
Dioxin compounds (including 2,3,7,8-TCDD) |
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 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. |
|
|
Line of Evidence (LOE) for Decision ID 30452, Dioxin compounds (including 2,3,7,8-TCDD)
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3727 |
|
Pollutant: |
Dioxin compounds (including 2,3,7,8-TCDD) |
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): |
|
Pollutant: |
Furan Compounds |
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 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. |
|
|
Line of Evidence (LOE) for Decision ID 19890, Furan Compounds
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3729 |
|
Pollutant: |
Furan Compounds |
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): |
|
Pollutant: |
Invasive Species |
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 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. |
|
|
Line of Evidence (LOE) for Decision ID 19889, Invasive Species
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3728 |
|
Pollutant: |
Invasive Species |
LOE Subgroup: |
Population/Community Degradation |
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: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Unspecified |
Temporal Representation: |
Unspecified |
Environmental Conditions: |
Unspecified |
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
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: |
2008 |
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. |
|
|
Line of Evidence (LOE) for Decision ID 19906, PCBs (Polychlorinated biphenyls)
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3731 |
|
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): |
|
Pollutant: |
PCBs (Polychlorinated biphenyls) (dioxin-like) |
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: |
2008 |
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. |
|
|
Line of Evidence (LOE) for Decision ID 19904, PCBs (Polychlorinated biphenyls) (dioxin-like)
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3732 |
|
Pollutant: |
PCBs (Polychlorinated biphenyls) (dioxin-like) |
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): |
|
Pollutant: |
Selenium |
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: |
2010 |
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. |
|
|
Line of Evidence (LOE) for Decision ID 19905, Selenium
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3733 |
|
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): |
|
Pollutant: |
Mercury |
Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL) |
Last Listing Cycle's Final Listing Decision: |
List on 303(d) list (being addressed by USEPA approved TMDL)(2010) |
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: |
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: |
Water Board staff conclude that the water body should be placed in the Water Quality Limited Segments Being Addressed category of the section 303(d) list because a TMDL has been approved by USEPA and an approved implementation plan is in place. |
|
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. |
|
|
Line of Evidence (LOE) for Decision ID 21148, Mercury
|
Region 2 |
Carquinez Strait |
|
|
LOE ID: |
3730 |
|
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): |
|