Final California 2014 and 2016 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name: Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
Water Body ID: CAX9061000020021127155300
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
44844
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
Pollutant: Indicator Bacteria
Final Listing Decision: Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2012)
Revision Status Revised
Sources: Source Unknown
TMDL Name: Bacteria Impaired Waters I (creeks and beach shorelines)
TMDL Project Code: 169
Date TMDL Approved by USEPA: 06/22/2011
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the CWA section 303(d) List under section 4.2 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.

Fifteen lines of evidence are available in the administrative record to assess this pollutant. Including the latest data, 125 of the 676 samples exceed the water quality objective 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 removing this water segment-pollutant combination from 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. Including the latest data, 125 of the 676 samples exceed the water quality objective for total coliform of a SSM of 230/100ml for the protection of SHELL and this exceeds the allowable frequency listed in 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 this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26428
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 93
Number of Exceedances: 2
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected with 93 geomeans calculated. Two of the 93 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 74782
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 165
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 165 geomeans exceeded the objective.
Data Reference: Data for Region 9 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The standard for fecal coliform states that the coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected at the surfzone outfall site.
Temporal Representation: Samples were collected from January 2008 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the beach watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26430
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 398
Number of Exceedances: 17
 
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 Januray 1999 through December 2007. A total of 398 single samples were collected with 17 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26434
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 90
Number of Exceedances: 6
 
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 Januray 1999 through December 2007. A total of 487 single samples were collected with 90 monthly geomeans calculated. Six of the 90 geomeans exceed 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26435
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 22
Number of Exceedances: 11
 
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 Januray 1999 through December 2007. A total of 487 single samples were collected with 22 samples correlated with a storm event. Eleven of the 22 single samples exceeded the single sample water quality objective.
Data Reference: National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station
  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).

Comparisons to water quality objectives were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26431
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 78
Number of Exceedances: 0
 
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 Januray 1999 through December 2007. A total of 398 single samples were collected with 78 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26432
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 19
Number of Exceedances: 7
 
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 Januray 1999 through December 2007. A total of 398 single samples were collected with 19 samples correlated with a storm event. Seven of the 19 samples exceeded the single sample water quality objective.
Data Reference: National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station
  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).

Comparisons to water quality objectives were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26418
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 22
Number of Exceedances: 0
 
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: 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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26426
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 21
Number of Exceedances: 16
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected with 21 samples correlated with a storm event. Sixteen of the 21 samples exceeded the single sample water quality objective.
Data Reference: National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station
  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 total coliform density shall not exceed 70 per 100 ml, and not more than 10 percent of the samples shall exceed 230 per 100 ml (SWRCB, 2005).

Comparisons were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26427
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 497
Number of Exceedances: 11
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected with 11 samples exceeded 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26425
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 497
Number of Exceedances: 120
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected with 120 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26429
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 21
Number of Exceedances: 6
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected with 21 samples correlated with a storm event. Six of the 21 samples exceeded 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: Total coliform density shall not exceed 10,000 per 100ml;

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

Comparisons to water quality objectives were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
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
  National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected at Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 28190
 
Pollutant: Indicator Bacteria
LOE Subgroup: Health Advisories
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 2555
Number of Exceedances: 35
 
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: County of Orange. March 2007. Annual Ocean and Bay Water Quality Report, 2006
  Department of Environmental Health, Land and Water Quality Division. San Diego County Beach Closure and Advisory Report
 
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
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 3631
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Not Specified
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 180
Number of Exceedances: 1
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: A total of 180 analyses were performed from 1999 through 2003. Of these, there was only one exceedance of the bacterial standards for all three indicators: The Enterococcus standard of 104 MPN/100mL was exceeded in 10/2002 (City of San Diego, 2004).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The objective is numeric.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline: From AB411: Enterococcus: 35"per 100 ml for 30-day average", single sample: 104 per 100 ml. Fecal coliform: 30-day average- 200 colonies/100 mL. Single sample- 400 colonies/100mL. Total coliform: 30-day average: 1,000 colonies/100 mL, single sample: If FC/TC ratio is < 0.1, 10,000 colonies/100 mL, if FC/TC ratio is > 0.1, 1,000 colonies/100mL.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Two stations were monitored at Anderson Canyon during this time: one at the sampling site and one 75 feet to the left of the site.
Temporal Representation: Data were available for this assessment from 01/2002 through 10/2004. The majority of samples were taken during the dry season, but samples were also taken during the wet season.
Environmental Conditions: The report notes that "there was one sewage spill that impacted Anderson Canyon. It did not appear to have an impact on bacterial indicator levels."

Southern California has three distinct weather/hydrological conditions: summer dry weather, winter dry weather, and storm events. The data set used in this analysis includes summer and winter season data. Whether or not storm event samples are included in the data set are not known. For future water quality assessments, the RWQCB may classify bacteria samples as summer dry, winter dry, or storm event samples to ensure adequate representation of all three weather/hydrological conditions.
QAPP Information: QA Info Missing
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 30713
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 379
Number of Exceedances: 10
 
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 Januray 1999 through December 2007. A total of 398 single samples were collected of which 379 are dry weather (AB411) samples with 10 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 31307
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 50
Number of Exceedances: 0
 
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 1999 through October 2007. A total of 271 dry month (April through October) single samples were collected with 50 dry month geomeans calculated. None of the 50 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from April 1999 through October 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 31308
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 60
Number of Exceedances: 0
 
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 1999 through October 2007. A total of 351 dry month (April through October) single samples were collected with 60 dry month geomeans calculated. None of the 60 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from April 1999 through October 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 30602
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 465
Number of Exceedances: 16
 
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 Januray 1999 through December 2007. A total of 487 single samples were collected of which 465 are dry weather (AB411) samples with 16 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 30818
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 476
Number of Exceedances: 5
 
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 Januray 1999 through December 2007. A total of 497 single samples were collected of which 476 are dry weather (AB411) samples with five samples exceeded 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 74783
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 179
Number of Exceedances: 5
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed Beach Watch data for Pacific Ocean Shoreline, Miramar Reservoir HA, Los Penasquitos River mouth to determine beneficial use support and results are as follows: 5 of 179 samples exceed the criterion for Coliform, Total.
Data Reference: Data for Region 9 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Ocean Plan states that at all areas where shellfish may be harvested for human consumption, not more than 10 percent of the samples shall exceed 230 per 100 mL.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean Shoreline, Miramar Reservoir HA, Los Penasquitos River mouth was collected at 1 monitoring site [ Torrey Pine at Los Peħasquitos Lagoon mouth]
Temporal Representation: Data was collected over the time period 1/9/2008-8/30/2010.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 74784
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 165
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 165 geomeans exceeded the objective.
Data Reference: Data for Region 9 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The geometric mean standard for total coliform states that the coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected at the Torrey Pines site.
Temporal Representation: Samples were collected from January 2008 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 31306
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 60
Number of Exceedances: 2
 
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 1999 through October 2007. A total of 352 dry month (April through October) single samples were collected with 60 dry month geomeans calculated. Two of the 60 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from April 1999 through October 2007.
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 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 77644
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 164
Number of Exceedances: 5
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Five of the 164 samples exceeded the objective of 70 mpn/100ml applied as a rolling 30 day geomean.
Data Reference: Data for Region 9 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Ocean Plan states that at all areas where shellfish may be harvested for human consumption, the median total coliform density shall not exceed 70 per 100 mL. Staff applied the objective as a rolling 30 day geometric mean consistent with other state bacteria objectives and with guidance from the National Shellfish Sanitation Program from which the objectives were taken.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at Pacific Ocean Shoreline, Miramar Reservoir HA, Los Penasquitos River mouth.
Temporal Representation: The samples were collected from September 2008 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the beach watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 74781
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 165
Number of Exceedances: 9
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Nine of the 165 geomeans exceeded the objective.
Data Reference: Data for Region 9 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The geometric mean standard for entercoccus states that the entercoccus density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected at the Torrey Pines site.
Temporal Representation: Samples were collected from January 2008 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44844, Indicator Bacteria
Region 9     
Pacific Ocean Shoreline, Miramar Reservoir HA, at Los Penasquitos River mouth
 
LOE ID: 26433
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 487
Number of Exceedances: 27
 
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 Januray 1999 through December 2007. A total of 487 single samples were collected with 27 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: 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 Los Penasquitos River mouth outlet at Torrey Pines State Beach, Del Mar, California. Station identification number is FM-100.
Temporal Representation: Samples were collected from Januray 1999 through December 2007.
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