Final California 2018 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach
Water Body ID:	CAC9013000020090418235132
Water Body Type:	Coastal & Bay Shoreline


DECISION ID	77608	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

Pollutant:	Indicator Bacteria
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)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the CWA 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. Fourteen lines of evidence are available in the administrative record to assess this pollutant. With the latest data, 26 of the 338 samples exceed the water quality objective for total coliform of a SSM of 230/100ml in a 30-day period for the protection of SHELL. 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 CWA section 303(d) List. 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. With the latest data, 26 of the 338 samples exceed the water quality objective for total coliform of a SSM of 230/100ml in a 30-day period for the protection of SHELL 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.

Regional Board Decision 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.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28447

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 35 samples correlated with a storm event. From the 35 samples, eight 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

National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28440

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 66 monthly geomeans calculated. None of the 66 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:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from July May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28445

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

278

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 17 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:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

31035

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange within the time period from May 2002 through December 2007. A total of 39 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 39 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: 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:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week within the time period from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

30634

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

243

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected of which 243 are dry weather (AB411) samples with nine 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:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28444

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 35 samples correlated with a storm event. From the 35 samples, two 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

National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

30735

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

243

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected of which 243 are dry weather (AB411) samples with three 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:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

31034

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

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:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28443

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 66 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:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28442

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

278

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with five 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:

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml;

Geomean: Fecal coliform density shall not exceed 200 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

77656

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Four of the 41 samples exceeded the objective of 70 mpn/100ml applied as a rolling 30 day geomean.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Ocean Plan states that at all areas where shellfish may be harvested for human consumption, the median total coliform density shall not exceed 70 per 100 mL. Staff applied the objective as a rolling 30 day geometric mean consistent with other state bacteria objectives and with guidance from the National Shellfish Sanitation Program from which the objectives were taken.

Objective/Criterion Reference:

California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach.

Temporal Representation:

The samples were collected from January 2008 to October 2009.

Environmental Conditions:

QAPP Information:

The samples were collected for the beach watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28438

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 35 samples correlated with a storm event. From the 35 samples, 10 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

National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

From the Ocean Plan the median coliform density shall not exceed 70 per 100ml, and not more than 10 percent of the samples shall exceed 230 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28437

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

278

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 24 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:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

74918

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed Beach Watch data for Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach to determine beneficial use support and results are as follows: 2 of 60 samples exceed the criterion for Coliform, Total.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Ocean Plan states that at all areas where shellfish may be harvested for human consumption, not more than 10 percent of the samples shall exceed 230 per 100 mL.

Objective/Criterion Reference:

California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Data for this line of evidence for Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach was collected at 1 monitoring site [ Trafalgar Street Beach]

Temporal Representation:

Data was collected over the time period 1/3/2008-10/29/2009.

Environmental Conditions:

Staff is not aware of any special conditions that might affect interpretation of the data.

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28441

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 35 samples correlated with a storm event. From the 35 samples, only one 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

National Weather Service Forecast Office, San Diego, California, Chronological Regional Temperature and Precipitation Listings by Station

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

30840

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

243

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected of which 243 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:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28439

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

278

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with one sample 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:

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml;

Geomean: Total coliform density shall not exceed 1,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

31033

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

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:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week within the time period from July May 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 Bacteria specific

Line of Evidence (LOE) for Decision ID 77608, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, Trafalgar Street Beach

LOE ID:

28446

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2002 through December 2007. A total of 278 single samples were collected with 66 monthly geomeans calculated. From the 66 geomeans only 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:

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml;

Geomean: Enterococcus density shall not exceed 35 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Trafalgar Street, station id OSC01, in the San Clemente HA. (Latitude 33.41825, Longitude:-117.61921).

Temporal Representation:

Samples were collected at least once a week from May 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 Bacteria specific