Water Body Name: | Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, 450 ft North of Pier |
Water Body ID: | CAC9013000020090418233959 |
Water Body Type: | Coastal & Bay Shoreline |
DECISION ID |
28573 |
Region 9 |
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, 450 ft North of Pier |
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Pollutant: | Enterococcus |
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. Four lines of evidence are available in the administrative record to assess this pollutant. Twenty-eight of the samples exceed the water quality objective for enterococcus. 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. Fifteen of 395 dry weather single samples and one of 42 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 LOE 28329, 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 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. Twenty-eight of 431 samples exceeded the enterococcus water quality objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Fifteen of 395 dry weather single samples 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 5. One of 42 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. 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. |
|
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LOE ID: | 28328 | ||||
Pollutant: | Enterococcus | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 72 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected with 72 monthly geomeans calculated. None of the 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: Enterococcus density shall not exceed 35 per 100 ml.
Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml (SWRCB, 2005). |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 31026 | ||||
Pollutant: | Enterococcus | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 42 | ||||
Number of Exceedances: | 1 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | Beach monitoring data was collected by the County of Orange within the time period from January 2002 through December 2007. A total of 42 monthly geomeans were calculated for data collected during the time frame of April 1st to October 31st (AB411 data) within the aforementioned time period. Of the 42 geomeans one 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 (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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week within the time period from January 2002 through December 2007. | ||||
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 | ||||
|
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LOE ID: | 30632 | ||||
Pollutant: | Enterococcus | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 395 | ||||
Number of Exceedances: | 15 | ||||
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 2002 through December 2007. A total of 431 single samples were collected of which 395 are dry weather (AB411) samples with 15 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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
|
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LOE ID: | 28327 | ||||
Pollutant: | Enterococcus | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 431 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected 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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
|
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LOE ID: | 28432 | ||||
Pollutant: | Indicator Bacteria | ||||
LOE Subgroup: | Health Advisories | ||||
Matrix: | -N/A | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2555 | ||||
Number of Exceedances: | 367 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | For the period from January 2000 to December 2006, there were and 367 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 2006. Data used was the number of days the beach was posting when the ocean or bay failed to meet the bacteriological standards. |
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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: | Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency | ||||
Spatial Representation: | Bacteriological monitoring samples were collected at North Beach, 450 feet North of Pier, Trafalgar Street, Avenida Calafia, Avenida de Las Palmeras. The posting covers 3.2 miles of beach shoreline. | ||||
Temporal Representation: | The beach posting covers the time frame of January 2000 -December 2006. | ||||
Environmental Conditions: | |||||
QAPP Information: | Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document (County of Orange, 2004). | ||||
QAPP Information Reference(s): | |||||
|
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LOE ID: | 28329 | ||||
Pollutant: | Enterococcus | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 36 | ||||
Number of Exceedances: | 13 | ||||
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 2002 through December 2007. A total of 431 single samples were collected.
From March 2002 through December 2007, 36 samples were correlated with a storm event. From those 36 samples, 13 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: | 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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007; however, rainfall data is only available from March 2002 through December 2007. | ||||
Environmental Conditions: | Comparisons were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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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 |
30034 |
Region 9 |
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, 450 ft North of Pier |
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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. Four lines of evidence are available in the administrative record to assess this pollutant. Seven of the samples exceed the water quality objective for fecal coliform. 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. Two of 395 dry weather single samples and zero of 42 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 LOE 28326, 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 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 431 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. Two of 395 dry weather single samples 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 5. Zero of 42 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. 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. |
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LOE ID: | 28325 | ||||
Pollutant: | Fecal Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 72 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected with 72 monthly geomeans calculated. None of the 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) |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 28326 | ||||
Pollutant: | Fecal Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 36 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected.
From March 2002 through December 2007, there were 36 samples correlated with a storm event. Of those 36 samples, five 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. |
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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). Comparison to water quality objectives were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period. |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007; however, rainfall data is only available from March 2002 through December 2007 | ||||
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 | ||||
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LOE ID: | 30732 | ||||
Pollutant: | Fecal Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 395 | ||||
Number of Exceedances: | 2 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | Beach monitoring data was collected by the County of Orange from January 2002 through December 2007. A total of 431 single samples were collected of which 395 are dry weather (AB411) samples with two 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: | 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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 31025 | ||||
Pollutant: | Fecal Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 42 | ||||
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 January 2002 through December 2007. A total of 42 monthly geomeans were calculated for data collected during the time frame of April 1st to October 31st (AB411 data) within the aforementioned time period. Of the 42 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 (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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week within the time period from January 2002 through December 2007.
The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) within 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 | ||||
|
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LOE ID: | 28432 | ||||
Pollutant: | Indicator Bacteria | ||||
LOE Subgroup: | Health Advisories | ||||
Matrix: | -N/A | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2555 | ||||
Number of Exceedances: | 367 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | For the period from January 2000 to December 2006, there were and 367 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 2006. 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: | Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency | ||||
Spatial Representation: | Bacteriological monitoring samples were collected at North Beach, 450 feet North of Pier, Trafalgar Street, Avenida Calafia, Avenida de Las Palmeras. The posting covers 3.2 miles of beach shoreline. | ||||
Temporal Representation: | The beach posting covers the time frame of January 2000 -December 2006. | ||||
Environmental Conditions: | |||||
QAPP Information: | Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document (County of Orange, 2004). | ||||
QAPP Information Reference(s): | |||||
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LOE ID: | 28324 | ||||
Pollutant: | Fecal Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 431 | ||||
Number of Exceedances: | 7 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | Beach monitoring data was collected by the County of Orange from January 2002 through December 2007. A total of 431 single samples were collected with seven 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: | 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) |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 |
29507 |
Region 9 |
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, 450 ft North of Pier |
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Pollutant: | Total 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. Six lines of evidence are available in the administrative record to assess this pollutant. Forty-five of the samples exceed the water quality objective for Shellfish Harvesting. 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. Zero of 395 dry weather single samples and zero of 42 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 28320 and 28323, 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 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. Forty-five of 431samples exceeded the Shellfish Harvesting water quality objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Zero of 395 dry weather single samples 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 5. Zero of 42 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. 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. |
|
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LOE ID: | 28321 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 72 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected with 72 monthly geomeans calculated. None of the 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: 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). |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 28432 | ||||
Pollutant: | Indicator Bacteria | ||||
LOE Subgroup: | Health Advisories | ||||
Matrix: | -N/A | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 2555 | ||||
Number of Exceedances: | 367 | ||||
Data and Information Type: | PWS pathogen monitoring (ambient water) | ||||
Data Used to Assess Water Quality: | For the period from January 2000 to December 2006, there were and 367 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 2006. Data used was the number of days the beach was posting when the ocean or bay failed to meet the bacteriological standards. |
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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. |
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Objective/Criterion Reference: | California Code of Regulations, Title 17, Section 7960 | ||||
Evaluation Guideline: | |||||
Guideline Reference: | Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency | ||||
Spatial Representation: | Bacteriological monitoring samples were collected at North Beach, 450 feet North of Pier, Trafalgar Street, Avenida Calafia, Avenida de Las Palmeras. The posting covers 3.2 miles of beach shoreline. | ||||
Temporal Representation: | The beach posting covers the time frame of January 2000 -December 2006. | ||||
Environmental Conditions: | |||||
QAPP Information: | Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document (County of Orange, 2004). | ||||
QAPP Information Reference(s): | |||||
|
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LOE ID: | 31024 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 42 | ||||
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 January 2002 through December 2007. A total of 42 monthly geomeans were calculated for data collected during the time frame of April 1st to October 31st (AB411 data) within the aforementioned time period. Of the 42 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: Total coliform density shall not exceed 1,000 per 100ml. over a 30 day period (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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week within the time period from January 2002 through December 2007.
The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) within the aforementioned time period. |
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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 | ||||
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LOE ID: | 28322 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 431 | ||||
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 January 2002 through December 2007. A total of 431 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). |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 28319 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Shellfish Harvesting | ||||
Number of Samples: | 431 | ||||
Number of Exceedances: | 45 | ||||
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 2002 through December 2007. A total of 431 single samples were collected with 45 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 coliform density shall not exceed 70 per 100ml, and not more than 10 percent of the samples shall exceed 230 per 100ml (SWRCB, 2005). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | There is one sampling location for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||
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LOE ID: | 28320 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Shellfish Harvesting | ||||
Number of Samples: | 36 | ||||
Number of Exceedances: | 19 | ||||
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 2002 through December 2007. A total of 430 single samples were collected.
From March 2002 through December 2007, 36 samples were correlated with a storm event. Of those 36 samples, 19 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. |
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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 coliform density shall not exceed 70 per 100ml, and not more than 10 percent of the samples shall exceed 230 per 100ml (SWRCB, 2005). | ||||
Objective/Criterion Reference: | Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency | ||||
Evaluation Guideline: | |||||
Guideline Reference: | |||||
Spatial Representation: | There is one sampling location for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007; however, rainfall data is only available from March 2002 through December 2007. | ||||
Environmental Conditions: | Comparisons were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
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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 | ||||
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LOE ID: | 28323 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 36 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected.
From March 2002 to August 2007, 34 samples were correlated with a storm event. None of the 34 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. |
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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). |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
Environmental Conditions: | Comparisons were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.
Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March. |
||||
QAPP Information: | Quality control for the bacteria analysis portion 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 | ||||
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LOE ID: | 30838 | ||||
Pollutant: | Total Coliform | ||||
LOE Subgroup: | Pollutant-Water | ||||
Matrix: | Water | ||||
Fraction: | None | ||||
Beneficial Use: | Water Contact Recreation | ||||
Number of Samples: | 395 | ||||
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 January 2002 through December 2007. A total of 431 single samples were collected of which 395 are dry weather (AB411) samples with none of those 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: | 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). |
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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 for this line of evidence located 450 feet north of the pier, S-19, in the San Clemente HA. Lat/Long: 33.42074/-117.62134. | ||||
Temporal Representation: | Samples were collected at least once a week from January 2002 through December 2007. | ||||
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 | ||||