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, at South Bay Power Plant
Water Body ID:	CAB9091200020020307125116
Water Body Type:	Bay & Harbor


DECISION ID	4795	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

Pollutant:	Chlorine
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	One line of evidence is available in the administrative record. Information is not backed with data. Based on the information presented, the water body-pollutant should not be placed on the section 303(d) list because it cannot be determined if the pollutant contribute or cause a toxicological effect (section 2 of the Listing Policy).

Regional Board Decision Recommendation:	No new data were assessed for 2008. 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.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4795, Chlorine	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

LOE ID:

333

Pollutant:

Chlorine

LOE Subgroup:

Testimonial Evidence

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Industrial Service Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

From the letter from San Diego Baykeeper, dated 06/14/2004: San Diego Baykeeper, the Environmental Health Coalition, and other local environmental groups have also presented site-specific studies on the area that have shown, year after year, that the beneficial uses in the South Bay are not being protected, and that the waters suffer from impairment by heat, chlorine, and copper. (San Diego Baykeeper, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

No non-numeric objective is included in the criteria used (Basin Plan, CTR, etc.)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The site is South San Diego Bay at South Bay Power Plant.

Temporal Representation:

The letter reporting this exceedance is dated 06/14/2004, and mentions that this has been the case "year after year."

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):


DECISION ID	4794	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

Pollutant:	Copper
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	One line of evidence is available in the administrative record. Information is not backed with data. Based on the information presented, the water body-pollutant should not be placed on the section 303(d) list because it cannot be determined if the pollutant contribute or cause a toxicological effect (section 2 of the Listing Policy).

Regional Board Decision Recommendation:	No new data were assessed for 2008. 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.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4794, Copper	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

LOE ID:

334

Pollutant:

Copper

LOE Subgroup:

Testimonial Evidence

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Industrial Service Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

From the letter from San Diego Baykeeper dated 06/14/2004: San Diego Baykeeper, the Environmental Health Coalition, and other local environmental groups have also presented site-specific studies on the area that have shown, year after year, that the beneficial uses in the South Bay are not being protected, and that the waters suffer from impairment by heat, chlorine, and copper. (San Diego Baykeeper, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objectives for copper (from CTR) are numeric.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

From the CTR, saltwater acute standard is 4.8 ppb and the saltwater chronic standard is 3.1 ppb. US Fish and Wildlife Services biological effects criteria for the support of aquatic life is 15 ppm for wet weight. The Effects Range Median for Marine and Estuary Sediment is 270 ppm. From the Ocean Plan, for the protection of Marine Aquatic Life, the 6-month median is 3 ppb, the daily maximum is 12 ppb and the instantaneous maximum is 30 ppb.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The letter from San Diego Baykeeper, written on June 14, 2004, notes that exceedances occur for South San Diego Bay at South Bay Power Plant. The letter does not specifically mention which beneficial uses are not supported by the water quality at this location.

Temporal Representation:

The letter documenting this problem was dated June 14, 2004.

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):


DECISION ID	4707	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

Pollutant:	Oxygen, Dissolved
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	One line of evidence is available in the administrative record. Information is not backed with data. Based on the information presented, the water body-pollutant should not be placed on the section 303(d) list because it cannot be determined if the pollutant contribute or cause a toxicological effect (section 2 of the Listing Policy).

Regional Board Decision Recommendation:	No new data were assessed for 2008. 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.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4707, Oxygen, Dissolved	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

LOE ID:

332

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Testimonial Evidence

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Estuarine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

From San Diego BayKeeper Memo, dated 06/14/2004: We recommend listing for excess temperature and low dissolved oxygen, based on a report prepared for the San Diego Bay Council: Recommended Options For Maximum Water Temperature Limits And Minimum Dissolved Oxygen Limits At A Compliance Point For Discharges From The South Bay Power Plant In San Diego Bay, Necessary To Protect Beneficial Uses, Richard F. Ford, Ph.D., Professor Emeritus of Biology at San Diego State University, April, 2003. (San Diego Baykeeper, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

From the Basin Plan: Dissolved oxygen levels shall not be less than 5.0 mg/l in inland surface waters with designated MAR or WARM beneficial uses or less than 6.0 mg/l in waters with designated COLD beneficial uses. The annual mean dissolved oxygen concentrations shall not be less than 7 mg/l more than 10% of the time.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The area is reported as South San Diego Bay at South Bay Power Plant.

Temporal Representation:

The cited report is dated April 2003. The letter submitted in response to public solicitation is dated June, 14 2004.

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):


DECISION ID	4779	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

Pollutant:	Temperature, water
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	One line of evidence is available in the administrative record. Information is not backed with data. Based on the information presented, the water body-pollutant should not be placed on the section 303(d) list because it cannot be determined if the pollutant contribute or cause a toxicological effect (section 2 of the Listing Policy).

Regional Board Decision Recommendation:	No new data were assessed for 2008. 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.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 4779, Temperature, water	Region 9
San Diego Bay Shoreline, at South Bay Power Plant

LOE ID:

331

Pollutant:

Temperature, water

LOE Subgroup:

Testimonial Evidence

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Industrial Service Supply

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Testimonial evidence was provided by the San Diego Bay Keeper. The recommendation for a listing for excess temperature was based on a report prepared for the San Diego Bay Council. This testimony also cites that other studies done by San Diego Baykeeper, the Environmental Health Coalition, and other local environmental groups have also presented site-specific studies on the area that have shown, year after year, that the beneficial uses in the South Bay are not being protected, and that the waters suffer from impairment by heat. (San Diego Baykeeper, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

From the Basin Plan: The terms and conditions of the State Board's "Water Quality Control Plan for Ocean Waters of California" (Ocean Plan), "Water Quality Control Plan for Control of Temperature in the Coastal and Interstate Waters and Enclosed Bays and Estuaries of California" (Thermal Plan), and any revisions thereto are incorporated into the Basin Plan by reference. The terms and conditions of the Ocean Plan and Thermal Plan apply to the ocean waters within this Region.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Testimonial evidence applies to San Diego Bay at the South Bay Power Plant.

Temporal Representation:

The document in which the testimonial was included was dated June 14, 2004.

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):