Final California 2012 Integrated Report( 303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name: Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
Water Body ID: CAC9013000020090505155824
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
28978
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
Pollutant: Fecal Coliform
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2010)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status.

In LOE 29360, the Regional Board calculated exceedances for samples taken only during storm events. This information was not used in determining listing decisions, but is of interest to the Regional Board and has been included as additional anecdotal information.

Four lines of evidence are available in the administrative record to assess this pollutant. Four of the 123 samples exceed the water quality objective.
This pollutant is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status.

This water body segment is identified as an AB411 beach and data collected during the time frame of April 1st to October 31st (dry weather) is assessed using a four percent exceedance percentage (section 3.3 of Listing Policy). There are two additional lines of evidence for dry weather single sample and geometric mean calculations. Four of 117 samples exceeded the recreational use single sample criteria and zero of 20 geo-metric mean calculations exceeded the geo-metric mean criteria.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Four of 123 samples exceeded the fecal coliform water quality objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Four of 117 samples exceeded the fecal coliform recreational use water quality objective and this does not exceed the allowable limit listed in Table 3.2 (at a four percent exceedance percentage – AB411) of the Listing Policy.
5. Zero of 20 geo-metric mean calculations exceeded the recreational use geo-metric mean criteria. This does not exceed the allowable limit in Table 3.2 (at a four percent exceedance percentage – AB411).
6. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Staff Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
 
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29362
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 123
Number of Exceedances: 4
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected with four exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: : Fecal coliform density shall not exceed 200 per 100ml

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30956
 
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 Orange within the time period from May 2004 through December 2006. A total of 20 monthly geomeans were calculated for data collected within the time frame of April 1st to October 31st (AB411 data) during the aforementioned time period. Of the 20 geomeans zero exceeded the geomean water quality objective
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Fecal coliform density shall not exceed 200 per 100ml over a 30 day 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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.

The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29375
 
Pollutant: Indicator Bacteria
LOE Subgroup: Health Advisories
Matrix: -N/A
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 2920
Number of Exceedances: 2571
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: For the period from January 2000 to December 2007, there were and 2571 beach postings days for this section of shoreline. Bacteriological samples are collected on a weekly basis at approximately 150 ocean and bay location in Orange County. 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 Orange in their Annual Ocean and Bay Water Quality Report, March 2007. The reporting period was from January 2000 -December 2007. Data used was the number of days the beach was posting 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
 
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: Beach posting data was for posting for Doheny State Park beach.
Temporal Representation: The beach posting covers the time frame of January 2000 -December 2007.
Environmental Conditions:
QAPP Information: Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29361
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 32
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 Orange from May 2004 through December 2006. A total of 547 single samples were collected and 32 monthly geomeans calculated. None of the 32 geomeans exceeded the geomean water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: : Fecal coliform density shall not exceed 200 per 100ml

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29360
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 6
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected and 6 samples were correlated with a storm event. None of the 6 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
  The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: : Fecal coliform density shall not exceed 200 per 100ml

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
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 of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 28978, Fecal Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30698
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 117
Number of Exceedances: 4
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected of which 117 are dry weather (AB411) samples with four exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: : Fecal coliform density shall not exceed 200 per 100ml

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
 
DECISION ID
29492
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
Pollutant: Enterococcus
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2010)
Revision Status Original
Sources: Natural Sources | Source Unknown | Unknown Nonpoint Source | Urban Runoff/Storm Sewers
Expected TMDL Completion Date: 2021
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant. Eighteen of the 32 samples exceed the Basin Plan geometric mean water quality objective for enterococcus.

The water body segment is identified as an AB411 beach and data collected during the time frame of April 1st to October 31st (dry weather) is assessed using a four percent exceedance percentage (sections 3.3 and 4.3 of Listing Policy). There are two additional lines of evidence for dry weather single sample and geometric mean calculations. Twenty-eight of 117 dry weather single samples exceeded the criteria and this does not exceed the allowable limit based on the application of a four percent exceedance percentage (AB411) to section 3.3 of the Listing Policy. Eight of 20 geo-metric mean calculations exceeded the recreational use dry weather geo-metric mean criteria, and this exceeds the allowable limit in Section 3.3 of the listing Policy (at the applicable four percent exceedance percentage – AB411).

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Eighteen of the 32 samples exceed the water quality objective for enterococcus and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Twenty-eight of 117 dry weather single samples exceeded the recreational use criteria. This exceeds the allowable limit in section 3.3 of the Listing Policy (at the applicable four percent exceedance percentage – AB411).
5. Four of 20 dry weather geo-metric mean calculations exceeded the recreational use geo-metric mean criteria. This exceeds the allowable limit in section 3.3 of the Listing Policy (at the applicable four percent exceedance percentage – AB411).
6. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
 
State Board Staff Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
 
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29341
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 6
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected with 6 samples correlated with a storm event. Of the 6 samples, 5 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
  The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Enterococcus density shall not exceed 35 per 100 ml.

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: There is one sampling location located at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
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 of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29375
 
Pollutant: Indicator Bacteria
LOE Subgroup: Health Advisories
Matrix: -N/A
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 2920
Number of Exceedances: 2571
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: For the period from January 2000 to December 2007, there were and 2571 beach postings days for this section of shoreline. Bacteriological samples are collected on a weekly basis at approximately 150 ocean and bay location in Orange County. 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 Orange in their Annual Ocean and Bay Water Quality Report, March 2007. The reporting period was from January 2000 -December 2007. Data used was the number of days the beach was posting 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
 
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: Beach posting data was for posting for Doheny State Park beach.
Temporal Representation: The beach posting covers the time frame of January 2000 -December 2007.
Environmental Conditions:
QAPP Information: Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29347
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 123
Number of Exceedances: 33
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected with 33 exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Enterococcus density shall not exceed 35 per 100 ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30959
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 20
Number of Exceedances: 8
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange within the time period from May 2004 through December 2006. A total of 20 monthly geomeans were calculated for data collected within the time frame of April 1st to October 31st (AB411 data) during the aforementioned time period. Of the 20 geomeans calculated eight exceeded the geomean water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Enterococcus density shall not exceed 35 per 100 ml. over a 30 day 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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29348
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 32
Number of Exceedances: 18
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 548 single samples were collected and 32 monthly geomeans calculated. Of the 32 geomeans, 18 exceeded the geomean water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Enterococcus density shall not exceed 35 per 100 ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29492, Enterococcus
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30576
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 541
Number of Exceedances: 28
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 548 single samples were collected of which 541 are dry weather (AB411) samples with 28 exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Enterococcus density shall not exceed 35 per 100 ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
 
DECISION ID
29171
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
Pollutant: Total Coliform
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2010)
Revision Status Original
Sources: Source Unknown
Expected TMDL Completion Date: 2021
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status.

Six lines of evidence are available in the administrative record to assess this pollutant. There were 2,571 days of beach postings for this beach.

The coastal beach at this water segment is identified as an AB411 beach. To comply with the requirements of AB411 the dry weather data collected during the time frame of April 1st to October 31st is assessed using a four percent exceedance percentage, as described in section 3.3 (and 4.3) of the Listing Policy. An assessment for dry weather single sample and the geometric mean calculation was conducted and two additional lines of evidence are available in the administrative record. None of 117 single samples and none of 20 geometric mean calculations exceeded the criteria for recreational use and this does not exceed the allowable limit based on the application of a four percent exceedance percentage (AB411) to section 3.3 of the Listing Policy.

In LOEs 29563 and 29331, the Regional Board calculated exceedances for samples taken only during storm events. This information was not used in determining listing decisions, but is of interest to the Regional Board and has been included as additional anecdotal information.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Two thousand five hundred seventy-one of 2,920 days were listed as beach postings and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. None of 117 dry weather single samples exceeded the total coliform criteria for recreational use and this does not exceed the allowable limit (at a four percent exceedance percentage - AB411) in section 3.3 of the Listing Policy.
5. None of 20 dry weather geometric mean calculations exceeded the total coliform criteria for recreational use and this does not exceed the allowable limit (at a four percent exceedance percentage - AB411) in section 3.3 of the Listing Policy.
6. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
 
State Board Staff Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: Region 9 data was not included in the 2012 Integrated Report so all decisions are carried over from the 2010 listing cycle.

After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
 
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29565
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 123
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected with none exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Total coliform density shall not exceed 1,000 per 100ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29329
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 123
Number of Exceedances: 22
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: Beach monitoring data was collected by the County of Orange from January 2004 through December 2006. A total of 123 single samples were collected with 22 samples exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 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).
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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from January 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30813
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 117
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected of which 117 are dry weather (AB411) samples with none exceeding the single sample water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Total coliform density shall not exceed 1,000 per 100ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29563
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 6
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected with 6 samples correlated with a storm event. None of the 6 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
  The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Total coliform density shall not exceed 1,000 per 100ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
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 of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29331
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 6
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 Orange from January 2004 through December 2006. A total of 123 single samples were collected with 6 samples associated with storm events. Of those 6 samples, six 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
  The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 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).
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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from January 2004 through December 2006.
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 of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29375
 
Pollutant: Indicator Bacteria
LOE Subgroup: Health Advisories
Matrix: -N/A
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 2920
Number of Exceedances: 2571
 
Data and Information Type: PWS pathogen monitoring (ambient water)
Data Used to Assess Water Quality: For the period from January 2000 to December 2007, there were and 2571 beach postings days for this section of shoreline. Bacteriological samples are collected on a weekly basis at approximately 150 ocean and bay location in Orange County. 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 Orange in their Annual Ocean and Bay Water Quality Report, March 2007. The reporting period was from January 2000 -December 2007. Data used was the number of days the beach was posting 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
 
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: Beach posting data was for posting for Doheny State Park beach.
Temporal Representation: The beach posting covers the time frame of January 2000 -December 2007.
Environmental Conditions:
QAPP Information: Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 30952
 
Pollutant: Total 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 Orange within the time period from May 2004 through December 2006. A total of 20 monthly geomeans were calculated for data collected within the time frame of April 1st to October 31st (AB411 data) during the aforementioned time period. Of the 20 geomeans 0 exceeded the geomean water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Total coliform density shall not exceed 1,000 per 100ml. over a 30 day 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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.

The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004
 
Line of Evidence (LOE) for Decision ID 29171, Total Coliform
Region 9     
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
 
LOE ID: 29564
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 32
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 Orange from May 2004 through December 2006. A total of 123 single samples were collected and 32 monthly geomeans calculated. From the 32 geomeans, none exceeding the geomean water quality objective.
Data Reference: The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Geomean: Total coliform density shall not exceed 1,000 per 100ml.

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: There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).
Temporal Representation: Samples were collected at least once a week from May 2004 through December 2006.
Environmental Conditions:
QAPP Information: Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.
QAPP Information Reference(s): County of Orange. Quality Assurance/Quality Control Manual, February 2004