Draft California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon
Water Body ID:	CAX9063000020020805132658
Water Body Type:	Coastal & Bay Shoreline


DECISION ID	75669	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

Pollutant:	Indicator Bacteria
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)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the CWA section 303(d) List under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Based on data collected from 2002 to 2005, one of 71 samples exceed the water quality objective for enterococcus of a SSM of 104/100ml for the protection of REC-1 and zero of 72 samples exceed the WQO for total coliform of a SSM of 230/100ml for the protection of SHELL. 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 CWA 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. Based on data collected from 2002 to 2005, one of 71 samples exceed the water quality objective for enterococcus of a SSM of 104/100ml for the protection of REC-1 and zero of 72 samples exceed the WQO for total coliform of a SSM of 230/100ml for the protection of SHELL and this does not exceed the allowable frequency listed in Table 3.2 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.

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28278

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of San Diego from April 2002 through June 2005. A total of 71 single samples with one sample exceeding the water quality objective.

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28277

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of San Diego from April 2002 through June 2005. A total of 72 single samples were collected with 22 monthly geomeans calculated. None of the geomeans exceeded the geomean water quality objective.

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28276

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of San Diego from April 2002 through June 2005. A total of 72 single samples were collected with none exceeding the single sample water quality objective.

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28279

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of San Diego from April 2002 through June 2005. A total of 71 single samples with 22 monthly geomeans calculated. None of the geomeans exceeded the geomean water quality objective.

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28273

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of San Diego from April 2002 through June 2005. A total of 72 single samples were collected with no samples exceeding the single sample water quality objective.

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

From the Ocean Plan the median coliform density shall not exceed 70 per 100ml, and not more than 10 percent of the samples shall exceed 230 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28275

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28274

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Data Reference:

Department of Environmental Health, Ocean & Bay Recreational Water Quality Program, 2007. AB 411 monitoring data 1999 to 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Anderson Canyon at Torrey Pines State Beach, Del Mar, California. Station identification number is EH-353. Lat 32.94210 Long -117.26230.

Temporal Representation:

Samples were collected from April 2002 through June 2005. The majority of the samples came from April through October of 2002 and 2003.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006

Line of Evidence (LOE) for Decision ID 75669, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, Anderson Canyon

LOE ID:

28280

Pollutant:

Indicator Bacteria

LOE Subgroup:

Health Advisories

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

2555

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

For the period from January 2001 to December 2007, there were 35 beach advisory days for two locations in Del Mar. Bacteriological samples are collected on a weekly basis from April through October. When a bacteriological sample exceeds water quality standards, signs are posted indicating that waters have exceeded public health standards.

Data and information on the number of beach posting were summarized by the County of San Diego in their annual San Diego County Beach Closure and Advisory Reports. The reporting period was from January 2001 to December 2007. Data used was the number of days the beach was postedb with an Advisory when the ocean or bay failed to meet the bacteriological standards.

Data Reference:

Department of Environmental Health, Land and Water Quality Division. San Diego County Beach Closure and Advisory Report

County of Orange. March 2007. Annual Ocean and Bay Water Quality Report, 2006

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Code of Regulations. Title 17, Section 7960.

(a) When a public beach or public water-contact sports area fails to meet any of the standards as set forth in Section 7957 or 7958 above, the local health officer or the Department, after taking into consideration the causes therefor, may at his or its discretion close, post with warning signs, or otherwise restrict use of said public beach or public water-contact sports area, until such time as corrective action has been taken and the standards as set forth in 7957 and 7958 above are met.

Objective/Criterion Reference:

California Code of Regulations, Title 17, Section 7960

Evaluation Guideline:

Guideline Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Spatial Representation:

Bacteriological monitoring samples were collected at Anderson Canyon on Torrey Pines State Beach and at the mouth of Los Penasquitos Lagoon.

Temporal Representation:

The beach advisory covers the time frame of January 2001 -December 2007. For Anderson Canyon, the sampling occurred in 2002 through 2005.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion was conducted in accordance with the County of San Diego, Department Public Health Laboratory Quality Assurance Manual.

QAPP Information Reference(s):

County of San Diego, 2006. Department Public Health Laboratory, Quality Assurance Manual, December 2006