Line of Evidence (LOE) for Decision ID 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30474 |
|
Pollutant: |
Indicator Bacteria |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Not Recorded |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
0 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
For the 2008 assessment , the 2006 listed coastline 'Pacific Ocean Shoreline, San Marcos HA' was renamed Batiquitos HSA and was split into smaller segments that each represent an area near the sampling location of the data being assessed. This segment 'Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet)' is one of the sampling locations. This LOE is a copy of the 2006 listing placeholder LOE for Pacific Ocean Shoreline, San Marcos HA and is considered by the Regional Board to be applicable to this more specific segment formed from the split. |
Data Reference: |
Placeholder reference pre-2006 303(d) |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
Unspecified |
Objective/Criterion Reference: |
Placeholder reference pre-2006 303(d) |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
|
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
Unspecified |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
77585 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Shellfish Harvesting |
|
Number of Samples: |
155 |
Number of Exceedances: |
59 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Fifty nine of the 155 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, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet). |
Temporal Representation: |
The samples were collected from January 2008 through 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30477 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
38 |
Number of Exceedances: |
1 |
|
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 March 2004 through December 2007. A total of 258 single samples were collected with 38 monthly geomeans calculated. One of the 38 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: |
Geomean: Enterococcus density shall not exceed 35 per 100 ml. |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30480 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
29 |
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 March 2004 through December 2007. A total of 166 single samples were collected and 29 geomeans calculated. None of the 29 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: |
Geomean; Fecal coliform density shall not exceed 200 per 100 ml; |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30481 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
166 |
Number of Exceedances: |
3 |
|
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 March 2004 through December 2007. A total of 166 single samples were collected with three 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; Fecal coliform density shall not exceed 400 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30482 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
3 |
Number of Exceedances: |
1 |
|
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 March 2004 through December 2007. A total of 166 single samples were collected with three samples correlating with a storm event. One of the three samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information. |
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 (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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 through December 2007. |
Environmental Conditions: |
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.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30483 |
|
Pollutant: |
Indicator Bacteria |
LOE Subgroup: |
Health Advisories |
Matrix: |
-N/A |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
2555 |
Number of Exceedances: |
78 |
|
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 and 78 beach advisory days for this section of shoreline. Bacteriological samples are collected on a weekly basis at ocean and bay locations in San Diego County. When a bacteriological sample exceeds water quality standards, signs are posted indicating that an advisory for 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 - December 2007. Data used was the number of days the beach was advisories were issued 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
|
|
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: |
|
Spatial Representation: |
Bacteriological monitoring samples were collected at Moonlight beach in Encinitas, CA. |
Temporal Representation: |
The beach advisory covers the time frame of January January 2001 to December 2007. |
Environmental Conditions: |
|
QAPP Information: |
Samples were collected in compliance with County of San Diego's Quality Assessment/Quality Control document |
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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30484 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
5 |
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 March 2004 through December 2007. A total of 258 single samples were collected with five samples correlating with a storm event. None of the five samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information. |
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: Total coliform density shall not exceed 10,000 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 through December 2007. |
Environmental Conditions: |
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.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30486 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
38 |
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 March 2004 through December 2007. A total of 258 single samples were collected with 38 monthly geomeans calculated. None of the 38 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: |
Geomean: Total coliform density shall not exceed 1,000 per 100ml; |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
31246 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
20 |
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 July 2002 through October 2007. A total of 124 dry month (April through October) single samples were collected with 20 dry month geomeans calculated. None of the 20 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: |
Geomean; Fecal coliform density shall not exceed 200 per 100 ml; |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from July 2002 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
31247 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
26 |
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 July 2002 through October 2007. A total of 202 dry month (April through October) single samples were collected with 26 dry month geomeans calculated. None of the 26 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: |
Geomean: Total coliform density shall not exceed 1,000 per 100ml; |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from July 2002 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
31245 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
26 |
Number of Exceedances: |
1 |
|
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 July 2002 through October 2007. A total of 202 dry month (April through October) single samples were collected with 26 dry month geomeans calculated. 1 of the 26 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: |
Geomean: Enterococcus density shall not exceed 35 per 100 ml. |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from July 2002 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30475 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Shellfish Harvesting |
|
Number of Samples: |
5 |
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 March 2004 through December 2007. A total of 258 single samples were collected with five samples correlating with a storm event. Two of the five samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information. |
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 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 through December 2007. |
Environmental Conditions: |
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.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30485 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
258 |
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 March 2004 through December 2007. A total of 258 single samples were collected with two samples exceeding 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: Total coliform density shall not exceed 10,000 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30792 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
253 |
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 March 2004 through December 2007. A total of 258 single samples were collected of which 253 are dry weather (AB411) samples with two samples exceeding 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: Total coliform density shall not exceed 10,000 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30556 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
253 |
Number of Exceedances: |
20 |
|
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 March 2004 through December 2007. A total of 258 single samples were collected of which 253 are dry weather (AB411) samples with 20 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 (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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
74552 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
156 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 156 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 Cottonwood Creek outlet 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
74553 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
156 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 156 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 Cottonwood Creek outlet site. |
Temporal Representation: |
Samples were collected approximately once a week 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
74554 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Shellfish Harvesting |
|
Number of Samples: |
169 |
Number of Exceedances: |
19 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BW data for Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) to determine beneficial use support and results are as follows: 19 of 169 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, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) was collected at 1 monitoring site [ Cottonwood Creek outlet] |
Temporal Representation: |
Data was collected over the time period Jauary 2008 through August 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
74555 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
156 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 156 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 Cottonwood Creek outlet 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30678 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
163 |
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 March 2004 through December 2007. A total of 166 single samples were collected of which 163 are dry weather (AB411) samples with two 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; Fecal coliform density shall not exceed 400 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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30478 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
5 |
Number of Exceedances: |
1 |
|
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 March 2004 through December 2007. A total of 258 single samples were collected with five samples correlating with a storm event. One of the five samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information. |
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 (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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 through December 2007. |
Environmental Conditions: |
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.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30479 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
258 |
Number of Exceedances: |
21 |
|
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 March 2004 through December 2007. A total of 258 single samples were collected with 21 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 (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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 43762, Indicator Bacteria
|
Region 9 |
Pacific Ocean Shoreline, Batiquitos HSA, at Moonlight State Beach (Cottonwood Creek outlet) |
|
|
LOE ID: |
30476 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Shellfish Harvesting |
|
Number of Samples: |
258 |
Number of Exceedances: |
80 |
|
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 March 2004 through December 2007. A total of 258 single samples were collected with 80 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: |
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 Moonlight State Beach (Cottonwood Creek outlet), San Diego, California. Department of Environmental Health identification number is EH-420. |
Temporal Representation: |
Samples were collected from March 2004 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 |
|