Final 2008 California 303(d)/305(b) Integrated Report

Supporting Information

Regional Board 8 - Santa Ana Region

Water Body Name: Crystal Cove State Beach
Water Body ID: CAX8011100020021003085116
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
12836
 
Pollutant: Enterococcus
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

Five (5) lines of evidence are available in the administrative record to assess this pollutant. Seven of the samples exceed the water quality objective.

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. Seven of 1,169 samples exceeded the AB 411 Standard and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 12836
 
LOE ID: 6033
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 676
Number of Exceedances: 4
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 676 samples collected, 4 exceed the following criteria, or guidelines as stated in the Ocean Plan: Enterococcus Standard in Ocean Plan: Enterococcus <35 MPN/100mL
Data Reference: Bacteria data for Orange County beaches downloaded from Orange County Health Care website.
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: 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: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 676 samples were collected at the Crystal Cove State Park station at Crystal Cove Beach.
Temporal Representation: The 676 samples were collected weekly between 1/8/2004 and 12/30/06
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was EPA_1600.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 28191
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 98
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 98 samples collected, 0 exceed the following criteria, or guidelines as stated in the Ocean Plan: Enterococcus Standard in Ocean Plan: Enterococcus <35 MPN/100mL
Data Reference: Bacteria data for Orange County beaches downloaded from Orange County Health Care website.
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: 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: The 98 samples were collected at Los Trancos.
Temporal Representation: The 98 samples were collected weekly between 1/8/2004 and 12/27/06
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was EPA_1600.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6034
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 130
Number of Exceedances: 2
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 130 samples collected, 2 exceed the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: 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: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 130 samples were collected at the El Morro station located in Crystal Cove Beach.
Temporal Representation: The 130 samples were collected weekly between 1/8/2004 and 12/30/2008
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was EPA_1600.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 5923
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 133
Number of Exceedances: 1
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 133 samples collected, 1 exceed the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: 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: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 133 samples were collected at the Pelican Point station located in Crystal Cove State Park.
Temporal Representation: The 133 samples were collected weekly between 1/8/2004 and 12/27/06
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was EPA_1600. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6026
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 132
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 132 samples collected, 0 exceed the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: 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: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 132 samples were collected at the Muddy Creek Surf station located in Crystal Cove Beach.
Temporal Representation: The 132 samples were collected weekly between 1/8/2004 to 12/27/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was EPA_1600. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
DECISION ID
12837
 
Pollutant: Fecal Coliform
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

Five (5) lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective.

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. None of 1221samples exceeded the AB 411 Standard and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 12837
 
LOE ID: 6032
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 130
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 130 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
  Bacteria data for Orange County beaches downloaded from Orange County Health Care website.
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometeric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 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: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 130 samples were collected at the Muddy Creek Surf station located in Crystal Cove State Park.
Temporal Representation: The 130 samples were collected weekly between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 28194
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 132
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 132 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Bacteria data for Orange County beaches downloaded from Orange County Health Care website.
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometeric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 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: The 132 samples were collected at the Pelican Point station located in Crystal Cove Beach.
Temporal Representation: The 132 samples were collected weekly between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6036
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 126
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 126 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 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: Of the 93 samples collected, 1 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Fecal Coliform Standard in Ocean Plan: Fecal Coliform <200MPN/100mL
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 126 samples were collected at the El Morro station located in Crystal Cove State Park.
Temporal Representation: The 126 samples were collected daily between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 5683
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 115
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 115 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 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: Of the 115 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Fecal Coliform Standard in Ocean Plan: Fecal Coliform <200MPN/100mL
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 115 samples were collected at the Los Trancos station located in Crystal Cove State Park.
Temporal Representation: The 115 samples were collected daily between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6027
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 718
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 718 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Fecal Coliform density shall not exceed 200 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: Of the 718 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Fecal Coliform Standard in Ocean Plan: Fecal Coliform <200MPN/100mL
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 718 samples were collected at the Crystal Cove State Park station.
Temporal Representation: The 718 samples were collected daily between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_9222_D. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
DECISION ID
12838
 
Pollutant: Total Coliform
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: New Decision
Revision Status Revised
Impairment from Pollutant or Pollution: Pollutant
 
Weight of Evidence: This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.

Five (5) lines of evidence are available in the administrative record to assess this pollutant. One (1) of the samples exceed the water quality objective.

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. One (1) of 1228 samples exceeded the AB 411 Standard and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
RWQCB Board Decision / Staff Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
SWRCB Board Decision / Staff Recommendation:
 
USEPA Decision:
 
 
Lines of Evidence (LOEs) for Decision ID 12838
 
LOE ID: 28292
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 133
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 133 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan: Total Coliform density shall not exceed 1,000 per 100 ml.
Data Reference: Bacteria data for Orange County beaches downloaded from Orange County Health Care website.
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 10,000 per 100 ml and Total Coliform density shall not exceed 1,000 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: The 133 samples were collected at the Pelican Point station located in the Crystal Cove State Park
Temporal Representation: The 133 samples were collected weekly between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_922_B. The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6038
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 116
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 116 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a 30d geometric mean maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 1,000 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: Of the 116 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan: Total Coliform <1000MPN/100mL.
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 116 samples were collected at the Los Trancos station located in the Crystal Cove State Park
Temporal Representation: The 116 samples were collected weekly between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_922_B.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6030
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 130
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 130 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a single sample maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 1,000 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: Of the 130 samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan: Total Coliform <1000MPN/100mL.
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 130 samples were collected at the Muddy Creek Surf station located in the Crystal Cove State Park
Temporal Representation: The 130 samples were collected between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_922_B.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 6029
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 720
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 720 samples collected, 0 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using a geometric mean, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 1,000 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: Of the 720samples collected, 0 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan: Total Coliform <1000MPN/100mL.
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 720 samples were collected at the Crystal Cove State Park station located in the Crystal Cove State Park
Temporal Representation: The 720 samples were collected daily between 1/8/2004 and 12/30/2006
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_922_B.

The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):
 
LOE ID: 5938
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 129
Number of Exceedances: 1
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Of the 129 samples collected, 1 exceeded the standards/guidelines listed above.
Data Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Water Quality Objective/Criterion: As stated in the California Ocean Plan, under the SWRCB Water-Contact Standards using 30d geometric mean maximum, within a zone bounded by the shoreline and a distance of 1,000 feet from the shoreline or the 30-foot depth contour, whichever is further from the shoreline, and in areas outside this zone used for water contact sports, as determined by the Regional Board (i.e., waters designated as REC-1), but including all kelp* beds, the following bacterial objectives shall be maintained throughout the water column: Total Coliform density shall not exceed 1,000 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: Of the 129 samples collected, 1 exceeded the following criteria, or guidelines as stated in the Ocean Plan: Total Coliform Standard in Ocean Plan: Total Coliform <1000MPN/100mL if Fecal Coliform.
Guideline Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Spatial Representation: The 129 samples were collected at the Crystal Cove station located in the El Morro station.
Temporal Representation: The 129 samples were collected weekly between 1/8/04 and 12/30/06
Environmental Conditions: The data spanned 3 entire years including wet and dry seasons.
QAPP Information: The EPA Method/Analytical Detection Limit used was MF_APHA_922_B.
The data’s quality is deemed appropriate because it was collected by the Orange County Environmental Health Agency and provided to the Regional Board via the State Water Resources Control Board for the sole purpose of the water quality assessment and update of the 2008 303d list.
QAPP Information Reference(s):