Draft 2008 California 303(d)/305(b) Integrated Report

Supporting Information

Regional Board 2 - San Francisco Bay Region

Water Body Name: Castro Cove, Richmond (San Pablo Basin)
Water Body ID: CAE2066001420020530174802
Water Body Type: Estuary
 
DECISION ID
6210
 
Pollutant: Dieldrin (sediment)
Final Listing Decision: List on 303(d) list (being addressed by action other than TMDL)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2006)
Revision Status Revised
Sources: Point Source | Urban Runoff/Storm Sewers
Expected Attainment Date: 2010
Date TMDL Approved by USEPA: Regional Board has issued a cleanup and abatement order (Order No. R2-2006-0078) requiring remediation of sediment contamination in the listed portion of Castro Cove. Cleanup is underway and upon its completion it is expected that this water body will meet applicable water quality standards.

In November 2007, Regional Board received a Monitoring and Risk Management Plan which includes post-dredging confirmation monitoring to demonstrate that chemical contamination in the sediment has been reduced to levels that no longer pose unacceptable ecological risk.
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.
 
RWQCB Board Decision / Staff Recommendation: Water Board staff conclude that the water body should be placed in the category of the section 303(d) list being addressed by action other than a TMDL. The cleanup that is already taking place will result in reductions of pollutant concentrations to a level that achieves the numeric water quality standards and the proposed Monitoring and Risk Management Plan will demonstrate attainment of the standards.
 
SWRCB Board Decision / Staff Recommendation: N/A
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 6210
 
LOE ID: 3734
 
Pollutant: Dieldrin (sediment)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
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)
 
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):
 
DECISION ID
6211
 
Pollutant: Mercury (sediment)
Final Listing Decision: List on 303(d) list (being addressed by action other than TMDL)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2006)
Revision Status Revised
Sources: Point Source | Urban Runoff/Storm Sewers
Expected Attainment Date: 2010
Date TMDL Approved by USEPA: Regional Board has issued a cleanup and abatement order (Order No. R2-2006-0078) requiring remediation of sediment contamination in the listed portion of Castro Cove. Cleanup is underway and upon its completion it is expected that this water body will meet applicable water quality standards. This cleanup action that involves removal of contaminated sediment supports a mercury TMDL approved by USEPA (02/12/2008).

In November 2007, Regional Board received a Monitoring and Risk Management Plan which includes post-dredging confirmation monitoring to demonstrate that chemical contamination in the sediment has been reduced to levels that no longer pose unacceptable ecological risk.
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.
 
RWQCB Board Decision / Staff Recommendation: Water Board staff conclude that the water body should be placed in the category of the section 303(d) list being addressed by action other than a TMDL. The cleanup that is already taking place will result in reductions of pollutant concentrations to a level that achieves the numeric water quality standards and the proposed Monitoring and Risk Management Plan will demonstrate attainment of the standards.
 
SWRCB Board Decision / Staff Recommendation: N/A
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 6211
 
LOE ID: 3735
 
Pollutant: Mercury (sediment)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
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)
 
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):
 
DECISION ID
6212
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons) (sediment)
Final Listing Decision: List on 303(d) list (being addressed by action other than TMDL)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2006)
Revision Status Revised
Sources: Point Source | Urban Runoff/Storm Sewers
Expected Attainment Date: 2010
Date TMDL Approved by USEPA: Regional Board has issued a cleanup and abatement order (Resolution No. R2-2006-0078) requiring remediation of sediment contamination in the listed portion of Castro Cove. Cleanup is underway and upon its completion it is expected that this water body will meet applicable water quality standards.

In November 2007, Regional Board received a Monitoring and Risk Management Plan which includes post-dredging confirmation monitoring to demonstrate that chemical contamination in the sediment has been reduced to levels that no longer pose unacceptable ecological risk.
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.
 
RWQCB Board Decision / Staff Recommendation: Water Board staff conclude that the water body should be placed in the category of the section 303(d) list being addressed by action other than a TMDL. The cleanup that is already taking place will result in reductions of pollutant concentrations to a level that achieves the numeric water quality standards and the proposed Monitoring and Risk Management Plan will demonstrate attainment of the standards.
 
SWRCB Board Decision / Staff Recommendation: N/A
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 6212
 
LOE ID: 3736
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons) (sediment)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
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)
 
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):
 
DECISION ID
6213
 
Pollutant: Selenium (sediment)
Final Listing Decision: List on 303(d) list (being addressed by action other than TMDL)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2006)
Revision Status Revised
Sources: Point Source | Urban Runoff/Storm Sewers
Expected Attainment Date: 2010
Date TMDL Approved by USEPA: Regional Board has issued a cleanup and abatement order (Order No. R2-2006-0078) requiring remediation of sediment contamination in the listed portion of Castro Cove. Cleanup is underway and upon its completion it is expected that this water body will meet applicable water quality standards.

In November 2007, Regional Board received a Monitoring and Risk Management Plan which includes post-dredging confirmation monitoring to demonstrate that chemical contamination in the sediment has been reduced to levels that no longer pose unacceptable ecological risk.
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.
 
RWQCB Board Decision / Staff Recommendation: Water Board staff conclude that the water body should be placed in the category of the section 303(d) list being addressed by action other than a TMDL. The cleanup that is already taking place will result in reductions of pollutant concentrations to a level that achieves the numeric water quality standards and the proposed Monitoring and Risk Management Plan will demonstrate attainment of the standards.
 
SWRCB Board Decision / Staff Recommendation: N/A
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 6213
 
LOE ID: 3737
 
Pollutant: Selenium (sediment)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
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)
 
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):