# Draft 2008 California 303(d)/305(b) Integrated Report

# Supporting Information

## Regional Board 3 - Central Coast Region

Water Body Name: | Pacific Ocean at Olde Port Beach (131 yards west of restrooms)
Water Body ID: | 3024
Water Body Type: | Coastal & Bay Shoreline

DECISION ID | 11231
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 water segment-pollutant combination 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. Two lines of evidence are available in the administrative record to assess this water segment-pollutant combination. Water Board staff assessed one data set against two different evaluation criteria (i.e. single sample maximum and geomean). Nine of 109 samples exceeded the single sample maximum criterion and three of 24 geomean assessments exceeded the geomean criterion. 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. Nine of 109 samples exceeded the single sample maximum criterion and three of 24 geomean assessments exceeded the geomean criterion 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 11231

LOE ID: | 20212
Pollutant: | Enterococcus
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 109
Number of Exceedances: | 9
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 9 of 109 samples exceed the criterion for Enterococci.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (SWRCB 2005) states that the single sample maximum for Enterococcus shall not exceed 104 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one AB411 monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):
LOE ID: | 20211
Pollutant: | Enterococcus
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 24
Number of Exceedances: | 3
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 3 of 24 samples exceed the criterion for Enterococci.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (SWRCB 2005) states that the geometric mean for Enterococcus shall not exceed 35 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one AB411 monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):

DECISION ID | 11229
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 water segment-pollutant combination 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. Two lines of evidence are available in the administrative record to assess this water segment-pollutant combination. Water Board staff assessed one data set against two different evaluation criteria (i.e. single sample maximum and geomean). Three of 108 samples exceeded the single sample maximum criterion and zero of 24 geomean assessments exceeded the geomean criterion. 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. Three of 108 samples exceeded the single sample maximum criterion and zero of 24 geomean assessments exceeded the geomean criterion 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 11229

LOE ID: | 20210
Pollutant: | Fecal Coliform
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 108
Number of Exceedances: | 3
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 3 of 108 samples exceed the criterion for Coliform, Fecal.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (SWRCB 2005) states that the single sample maximum for fecal coliform shall not exceed 400 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one AB411 monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):
LOE ID: | 20209
Pollutant: | Fecal Coliform
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 24
Number of Exceedances: | 0
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 0 of 24 samples exceed the criterion for Coliform, Fecal.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (SWRCB 2005) states that the 30-day geometric mean for fecal coliform shall not exceed 200 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one AB411 monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):

DECISION ID | 11227
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 water segment-pollutant combination 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. Three lines of evidence are available in the administrative record to assess this water segment-pollutant combination. Water Board staff assessed one data set against three different evaluation criteria (i.e. single sample maximum, geomean, and total to fecal ratio.). One of 108 samples exceeded the single sample maximum criterion, zero of 24 geomean assessments exceeded the geomean criterion, and one of 108 sample ratio exceeded the total to fecal ratio criterion. 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 of 108 samples exceeded the single sample maximum criterion, zero of 24 geomean assessments exceeded the geomean criterion, and one of 108 sample ratio exceeded the total to fecal ratio criterion 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 11227

LOE ID: | 19942
Pollutant: | Total Coliform
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 108
Number of Exceedances: | 1
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 1 of 108 samples exceed the criterion for Coliform, Total.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (2005) single sample maximum states that total coliform density shall not exceed 10,000 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):
LOE ID: | 19943
Pollutant: | Total Coliform
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 24
Number of Exceedances: | 0
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 0 of 24 samples exceed the criterion for Coliform, Total.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (2005) 30-day geometric mean standard for total coliform states that total coliform density shall not exceed 1,000 MPN/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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):
LOE ID: | 19944
Pollutant: | Total Coliform
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | None
Beneficial Use: | Water Contact Recreation
Number of Samples: | 108
Number of Exceedances: | 1
Data and Information Type: | PATHOGEN MONITORING
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed data for Pacific Ocean at Olde Port Beach (131 yards west of restrooms) to determine beneficial use support and results are as follows: 1 of 108 samples exceed the criterion for Coliform, Total.
Data Reference: | AB 411 Data for 2004
| AB 411 Data for 2005
| AB 411 Data for 2006
Water Quality Objective/Criterion: | California Ocean Plan (2005) single sample maximum standard for total coliform states that total coliform density shall not exceed 1,000 MPN/100 mL when the fecal coliform/total coliform ratio exceeds 0.1.
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: | Data for this line of evidence for Pacific Ocean at Olde Port Beach was collected at one monitoring site (OLDE12)
Temporal Representation: | Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions: |
QAPP Information: | QA information not available
QAPP Information Reference(s):