Final California 2010 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	San Diego Bay Shoreline, near sub base
Water Body ID:	CAB9081000019990210085507
Water Body Type:	Bay & Harbor


DECISION ID	7471	Region 9
San Diego Bay Shoreline, near sub base

Pollutant:	Benthic Community Effects
Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Revised
Sources:	Other
Expected TMDL Completion Date:	2021
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.9 of the Listing Policy. Under this section 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. None of samples exceeded the water quality criteria for benthic invertebrates. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the nineteen samples exceeded the water quality criteria for benthic invertebrates and this does not satisfy the minimum sample requirements to de-list according to Table 4.2 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.

USEPA Action (if applicable):	USEPA approved the listing of this water body as a water quality limited segment requiring a TMDL for this pollutant.

Line of Evidence (LOE) for Decision ID 7471, Benthic Community Effects	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

4707

Pollutant:

Benthic Community Effects

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

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):

Line of Evidence (LOE) for Decision ID 7471, Benthic Community Effects	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30045

Pollutant:

Benthic Community Effects

LOE Subgroup:

Pollution

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Twelve of the 14 sediment samples had BRI scores less than 31. The remaining two stations had BRI scores of 31.3 and 34.4 which place them in the lower end of Response Level 1.

Sample collection was conducted by Space and Naval Warfare Systems Center San Diego in April 2004 at Submarine Base San Diego.

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

The magnitude of disturbance shown by the benthic assemblage at each station was described by the embayment Benthic Response Index (BRI). BRI values in Response Level 2 or greater were consider degraded.

Benthic Response Index (BRI) Categories:

Reference: < 31

Response Level 1. 31 to 42

Response Level 2: 42 to 53

Response Level 3: 53 to 73

Response Level 4: > 73

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Fourteen sampling stations were layed out in a grid pattern covering approximately 60 acres in around Piers November, Mike, and Sierra. Three of the stations are in the area originally listed as impaired on the current 303d list.

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

Sampling and analysis and quality assurance plans followed the general guidelines from previous San Diego Bay TMDL studies conducted by the Southern California Coastal Water Research Project, U.S. Navy, and the Regional Water Quality Control Board.

QAPP Information Reference(s):


DECISION ID	7473	Region 9
San Diego Bay Shoreline, near sub base

Pollutant:	Sediment Toxicity
Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Revised
Sources:	Major Industrial Point Source
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.6 of the Listing Policy. Seven lines of evidence are available in the administrative record to assess pollutant. Ten of 35 samples exceed the water quality objective for water toxicity. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Ten of 35 samples exceeded the toxicity objective and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):	USEPA approved the listing of this water body as a water quality limited segment requiring a TMDL for this pollutant.

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30035

Pollutant:

Toxicity

LOE Subgroup:

Toxicity

Matrix:

Water

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

One of the 14 sediment samples were statistically significantly different from the control and below the minimum significant difference threshold for mussel larvae Mytilus galloprovincialis.

Three of the 14 sediment samples were statistically significantly different from the control and below the minimum significant difference threshold for purple sea urchin Strongylocentrotus purpuratus.

Sample collection was conducted by Space and Naval Warfare Systems Center San Diego in April 2004 at Submarine Base San Diego.

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

The sample is consider toxic if there is statistically significant difference from the control and the minimum significant difference threshold is exceeded for the test species.

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

29978

Pollutant:

Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

None of the 14 sediment samples were statistically significantly different from the control and below the minimum significant difference threshold for marine amphipods. Sample collection was conducted by Space and Naval Warfare Systems Center San Diego in April 2004 at Submarine Base San Diego.

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

The sample is consider toxic if there is statistically significant difference from the control and the minimum significant difference threshold is exceeded for the test species Eohaustorius estuarius.

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30045

Pollutant:

Benthic Community Effects

LOE Subgroup:

Pollution

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

4708

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

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):

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30072

Pollutant:

LOE Subgroup:

Pollution

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

None of the bioaccumulation composite tissue samples (n = 7) exceeded the tissue screening values for cadmium, mercury, total DDT, total PAHs, tributyltin or total chlordane.

Sample collection was conducted by Space and Naval Warfare Systems Center San Diego in April 2004 at Submarine Base San Diego.

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

OEHHA screening value for cadmium, mercury and total DDT for protection of human health from consumption of fish and shellfish.

USEPA screening value for total PAHs, tributyltin and total chlordane for protection of human health from consumption of fish and shellfish.

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

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:

Fourteen sampling stations were layed out in a grid pattern covering approximately 60 acres in around Piers November, Mike, and Sierra. Of those stations, seven were selected for bioaccumulation studies. Three of the seven stations were in the area originally listed as impaired on the current 303d list.

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 7473, Sediment Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30036

Pollutant:

LOE Subgroup:

Pollution

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fixed station physical/chemical monitoring (conventional pollutants only)

Data Used to Assess Water Quality:

None of the 14 sediment samples exceeded the ERM or consensus base guidelines for marine sediment.

Sample collection was conducted by Space and Naval Warfare Systems Center San Diego on April 2004 at Submarine Base San Diego.

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Effects Range Median (ERM) for metals. Consensus base guidelines for polynuclear aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), Chlordane, and DDT.

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Incidence of Adverse Biological Effects Within Ranges of Chemical Concentrations in Marine and Estuarine Sediments

Development and Evaluation of Consensus-based Sediment Effect Concentrations for Polychlorinated Biphenyls

Development and Evaluation of Sediment Quality Guidelines for Florida Coastal Waters

Consensus Sediment Quality Guidelines for Polycyclic Aromatic Hydrocarbon Mixtures. Environmental Toxicology and Chemistry

Sediment Toxicity, Contamination and Amphipod Abundance at a DDT-Dieldrin-Contaminated Site in San Francisco Bay. Environmental Toxicology and Chemistry 13:6 pp. 949-962. 1994

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	17860	Region 9
San Diego Bay Shoreline, near sub base

Pollutant:	Toxicity
Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	Other Urban Runoff \| Unknown Nonpoint Source \| Unknown Point Source
Expected TMDL Completion Date:	2021
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.1 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. [In 2006, water toxicity had been included in the Sediment Toxicity listing] Two lines of evidence are available in the administrative record to assess pollutant. Three of 28 samples exceed the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Three of 28 samples exceeded the toxicity water quality objective and this exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):	USEPA approved the listing of this water body as a water quality limited segment requiring a TMDL for this pollutant.

Line of Evidence (LOE) for Decision ID 17860, Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30035

Pollutant:

Toxicity

LOE Subgroup:

Toxicity

Matrix:

Water

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

The sample is consider toxic if there is statistically significant difference from the control and the minimum significant difference threshold is exceeded for the test species.

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 17860, Toxicity	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

29978

Pollutant:

Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	17537	Region 9
San Diego Bay Shoreline, near sub base

Pollutant:	Arsenic \| Cadmium \| Chlordane \| Chromium (total) \| Copper \| Lead \| Mercury \| Nickel \| PAHs (Polycyclic Aromatic Hydrocarbons) \| PCBs (Polychlorinated biphenyls) \| Silver
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	These pollutants are being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the 14 sediment samples exceeded the ERM or consensus base guidelines for marine sediment. 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. None of the 14 sediment samples exceeded the ERM or consensus base guidelines for marine sediment and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 17537, Multiple Pollutants	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30036

Pollutant:

LOE Subgroup:

Pollution

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fixed station physical/chemical monitoring (conventional pollutants only)

Data Used to Assess Water Quality:

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Effects Range Median (ERM) for metals. Consensus base guidelines for polynuclear aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), Chlordane, and DDT.

Guideline Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

Incidence of Adverse Biological Effects Within Ranges of Chemical Concentrations in Marine and Estuarine Sediments

Development and Evaluation of Consensus-based Sediment Effect Concentrations for Polychlorinated Biphenyls

Development and Evaluation of Sediment Quality Guidelines for Florida Coastal Waters

Consensus Sediment Quality Guidelines for Polycyclic Aromatic Hydrocarbon Mixtures. Environmental Toxicology and Chemistry

Sediment Toxicity, Contamination and Amphipod Abundance at a DDT-Dieldrin-Contaminated Site in San Francisco Bay. Environmental Toxicology and Chemistry 13:6 pp. 949-962. 1994

Spatial Representation:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	17539	Region 9
San Diego Bay Shoreline, near sub base

Pollutant:	Cadmium \| Chlordane \| DDT (Dichlorodiphenyltrichloroethane) \| Mercury \| PAHs (Polycyclic Aromatic Hydrocarbons) \| Tributyltin TBT (Tributylstanne)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the seven samples exceed the OEHHA or USEPA screening value. 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. None of the seven samples exceed the OEHHA or USEPA screening value and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 17539, Multiple Pollutants	Region 9
San Diego Bay Shoreline, near sub base

LOE ID:

30072

Pollutant:

LOE Subgroup:

Pollution

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Marine Habitat

Aquatic Life Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Data Reference:

Sediment Site Assessment Study, Submarine Base, San Diego, Draft Final Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

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

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:

Temporal Representation:

Samples were collected in April 2004.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):