Final California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground
Water Body ID:	CAC9013000020090505155824
Water Body Type:	Coastal & Bay Shoreline


DECISION ID	132168	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

Pollutant:	Indicator Bacteria
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)(2018)
Revision Status	Revised
Sources:	A Source Unknown
TMDL Name:	Bacteria Impaired Waters I (creeks and beach shorelines)
TMDL Project Code:	169
Date TMDL Approved by USEPA:	06/22/2011
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.3 of the Listing Policy. Under section 4.3 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant for REC-1. Fifty-six of the 201 samples exceed the GM threshold for Enterococci. Zero of 72 samples exceed the GM threshold for Fecal Coliform. Six lines of evidence are available in the administrative record to assess this pollutant for SHELL. Twenty-two of the 228 samples exceed the median threshold, and 73 of 228 exceed the 10% threshold. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. There is sufficient justification to place it in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by RWQCB and USEPA and is expected to result in attainment of the standard. 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. Fifty-six of 201 samples exceeded the Enterococci water quality threshold for the protection of REC-1, and this exceeds the allowable frequency listed in Table 4.2 of the Listing Policy. 4. The TMDL was approved by USEPA on 6/22/2011. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. The Water Quality Control Plan for Ocean Waters (“Ocean Plan”) contains two bacteria water quality objectives applicable to the REC-1 beneficial use: a fecal coliform water quality objective and an enterococci water quality objective. This waterbody is being considered for placement on or removal from the CWA section 303(d) List under section 3.3 or 4.3 of the Listing Policy, as applicable, using the fecal coliform and enterococci objectives. In accordance with section 6.1.5.3 of the Listing Policy, data should be representative of the critical timing that the pollutant is expected to impact the waterbody. Indicator bacteria (total coliform, fecal coliform, E. coli, enterococci) populations may fluctuate substantially on a daily, seasonal, or yearly basis. Lacking constant inputs, they do not persist in the environment for a long period and effects are of relatively short duration. As a result, the historic levels of indicator bacteria in the waterbody may be a poor indicator of current risks to human health, particularly when more recent data are available to sufficiently assess the water quality standard. Additionally, water quality conditions in waterbodies may change as a result of management actions that have been implemented to address bacteria. Unrepresentative data may result in incorrectly placing or not placing a water body segment on the list, which could result in the unnecessary expenditure of public resources or missing a human health problem. Historic lines of evidence for data collected prior to 2010 were evaluated pursuant to these considerations and were not used to assess water quality standards attainment because they do not meet the temporal representation requirements of section 6.1.5.3 of the Listing Policy. For enterococci data, Listing Policy sections 3.3 and 4.3 instructs to use the binomial distribution table in sections 3.2 and 4.2, as applicable. To use the binomial table that uses a four percent exceedance frequency, the data must be collected from coastal beaches from April 1 through October 31 only.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.

State Board Review of Regional Board Conclusion and Recommendation:	The Water Quality Control Plan for Ocean Waters (“Ocean Plan”) contains two bacteria water quality objectives applicable to the REC-1 beneficial use: a fecal coliform water quality objective and an enterococci water quality objective. This waterbody is being considered for placement on or removal from the CWA section 303(d) List under section 3.3 or 4.3 of the Listing Policy, as applicable, using the fecal coliform and enterococci objectives. In accordance with section 6.1.5.3 of the Listing Policy, data should be representative of the critical timing that the pollutant is expected to impact the waterbody. Indicator bacteria (total coliform, fecal coliform, E. coli, enterococci) populations may fluctuate substantially on a daily, seasonal, or yearly basis. Lacking constant inputs, they do not persist in the environment for a long period and effects are of relatively short duration. As a result, the historic levels of indicator bacteria in the waterbody may be a poor indicator of current risks to human health, particularly when more recent data are available to sufficiently assess the water quality standard. Additionally, water quality conditions in waterbodies may change as a result of management actions that have been implemented to address bacteria. Unrepresentative data may result in incorrectly placing or not placing a water body segment on the list, which could result in the unnecessary expenditure of public resources or missing a human health problem. Historic lines of evidence for data collected prior to 2010 were evaluated pursuant to these considerations and were not used to assess water quality standards attainment because they do not meet the temporal representation requirements of section 6.1.5.3 of the Listing Policy. For enterococci data, Listing Policy sections 3.3 and 4.3 instructs to use the binomial distribution table in sections 3.2 and 4.2, as applicable. To use the binomial table that uses a four percent exceedance frequency, the data must be collected from coastal beaches from April 1 through October 31 only.

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 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234274

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 72 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a 30-Day rolling geomean.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the 30 day geometric mean of fecal coliform density not exceed 200 per 100 mL, calculated based on the five most recent samples from each site.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234336

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

201

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 56 of the 201 samples exceeded the geomean water quality threshold for Enterococcus. This is a six week rolling geomean that is calculated weekly.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the bacteria water quality objective to protect the REC-1 beneficial for all ocean waters for Enterococci is a geometric mean (GM) of 30 cfu/100 mL. The waterbody GM shall not be greater that the GM magnitude in any six-week interval, calculated weekly.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234363

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 4 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a Single Sample Maximum (SSM) value that is calculated daily.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the Single Sample Maximum fecal coliform density not exceed 400 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4D

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234399

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

219

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 5 of the 219 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a Single Sample Maximum (SSM) value that is calculated daily.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the Single Sample Maximum fecal coliform density not exceed 400 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234319

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 data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 1 of the 4 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold for shellfish is based on the median concentration of Total Coliform at each station, and is calculated as a 30-day rolling median.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the median total coliform density shall not exceed 70 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4D

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234432

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

220

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 20 of the 220 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold for shellfish is based on the median concentration of Total Coliform at each station, and is calculated as a 30-day rolling median.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the median total coliform density shall not exceed 70 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234237

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

220

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 73 of the 220 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold is based on a 10% exceedance rate that is calculated for a 30-Day peroid.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that not more than 10 percent of the total coliform samples shall exceed 230 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234233

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 data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 4 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold is based on a 10% exceedance rate that is calculated for a 30-Day peroid.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that not more than 10 percent of the total coliform samples shall exceed 230 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4U

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234154

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 data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 4 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold is based on a 10% exceedance rate that is calculated for a 30-Day peroid.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that not more than 10 percent of the total coliform samples shall exceed 230 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4D

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234269

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 data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 1 of the 4 samples exceeded the water quality threshold for Coliform, Total. The water quality threshold for shellfish is based on the median concentration of Total Coliform at each station, and is calculated as a 30-day rolling median.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the median total coliform density shall not exceed 70 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4U

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29341

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 123 single samples were collected with 6 samples correlated with a storm event. Of the 6 samples, 5 exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information.

Data Reference:

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

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Enterococcus density shall not exceed 35 per 100 ml.

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

There is one sampling location located at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

Comparisons were made for all data and data associated with storm events. A storm event was defined as 0.2 inches of rainfall within a 72 hour period.

Analyzing only storm water bacteria data is important because the majority of beach monitoring data covers the months of April through October. The data may not capture the full impacts of seasonal storm events and high bacteria levels due to storm water runoff because much of the wet season for Southern California occurs in November through March.

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30576

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

541

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 548 single samples were collected of which 541 are dry weather (AB411) samples with 28 exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Enterococcus density shall not exceed 35 per 100 ml.

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

There is one sampling location at North Doheny State Park Campground, DSB4, in the Lower San Juan HSA. This location is found in Doheny State Beach, approximately 200 yards south of San Juan Creek, Dana Point (Latitude 33.46070, Longitude -117.67749).

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30959

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 20 monthly geomeans were calculated for data collected within the time frame of April 1st to October 31st (AB411 data) during the aforementioned time period. Of the 20 geomeans calculated eight exceeded the geomean water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Enterococcus density shall not exceed 35 per 100 ml. over a 30 day period

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.
The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29347

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

123

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected with 33 exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Enterococcus density shall not exceed 35 per 100 ml.

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74958

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero one of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for entercoccus states that the entercoccus density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Three Arch Bay site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74956

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

134

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Seventy-six of the 134 geomeans exceeded the enterococcus objective. For this station, samples were collected from surfzone upcoast and surfzone downcoast. The higher of the two values was used for the geomean calculation.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean for enterococcus shall not exceed 35 MPN/100 mL. Water Quality Control Plan for the San Diego Basin. California Ocean Plan.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

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 from Coastal Stormdrain at Doheny State Beach (surfzone upcoast and surfzone downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to 2009.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74957

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero one of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for entercoccus states that the entercoccus density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Dana Strands - Selva Ramp site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74955

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

147

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Forty-six of the 147 samples exceeded the enterococcus objective. For this station, samples were collected from surfzone upcoast and surfzone downcoast. The results represent the higher of the two values.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The single sample enterococcus concentration shall not exceed more than 104/100ml. Water Quality Control Plan for Ocean Waters of California. Region 9 Basion Plan.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

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 from site DSB4, Coastal Stormdrain at Doheny State Beach (surzone upcoast and downcoast).

Temporal Representation:

The samples were collected in February 2007.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29348

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 548 single samples were collected and 32 monthly geomeans calculated. Of the 32 geomeans, 18 exceeded the geomean water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Enterococcus density shall not exceed 35 per 100 ml.

Single Sample Maximum: Enterococcus density shall not exceed 104 per 100 ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29360

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 123 single samples were collected and 6 samples were correlated with a storm event. None of the 6 samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information.

Data Reference:

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

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: : Fecal coliform density shall not exceed 200 per 100ml

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml; (SWRCB, 2005)

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30698

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

117

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected of which 117 are dry weather (AB411) samples with four exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: : Fecal coliform density shall not exceed 200 per 100ml

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml; (SWRCB, 2005)

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30956

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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

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:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74959

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

147

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Nine of the 147 samples exceeded the fecal coliform objective. For this station, samples were collected from surfzone upcoast and surfzone downcoast. The results represent the higher of the two values.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The single sample fecal coliform concentration shall not exceed more than 400/100ml. Water Quality Control Plan for Ocean Waters of California. Region 9 Basion Plan.

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 from site DSB4, Coastal Stormdrain at Doheny State Beach (surzone upcoast and downcoast).

Temporal Representation:

The samples were collected in February 2007.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29361

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 547 single samples were collected and 32 monthly geomeans calculated. None of the 32 geomeans exceeded the geomean water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: : Fecal coliform density shall not exceed 200 per 100ml

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml; (SWRCB, 2005)

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74982

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The standard for fecal coliform states that the coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Three Arch Bay site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the beach watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74981

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The standard for fecal coliform states that the coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Dana Strands - Selva Ramp site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the beach watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29362

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

123

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected with four exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: : Fecal coliform density shall not exceed 200 per 100ml

Single Sample Maximum: Fecal coliform density shall not exceed 400 per 100 ml; (SWRCB, 2005)

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74980

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

134

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

One of the 134 geomeans exceeded the fecal coliform objective. For this station, samples were collected from surfzone upcoast and surfzone downcoast. The higher of the two values was used for the geomean calculation.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean for fecal coliform shall not exceed more than 200/100ml. Water Quality Control Plan for the San Diego Basin. California Ocean Plan.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

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 from Coastal Stormdrain at Doheny State Beach (surfzone upcoast and surfzone downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to 2009.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29375

Pollutant:

Indicator Bacteria

LOE Subgroup:

Health Advisories

Matrix:

-N/A

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

2920

Number of Exceedances:

2571

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

For the period from January 2000 to December 2007, there were and 2571 beach postings days for this section of shoreline. Bacteriological samples are collected on a weekly basis at approximately 150 ocean and bay location in Orange County. When a bacteriological sample exceeds water quality standards, signs are posted indicating that waters have exceeded public health standards.

Data and information on the number of beach posting were summarized by the County of Orange in their Annual Ocean and Bay Water Quality Report, March 2007. The reporting period was from January 2000 -December 2007. Data used was the number of days the beach was posting when the ocean or bay failed to meet the bacteriological standards.

Data Reference:

County of Orange. March 2007. Annual Ocean and Bay Water Quality Report, 2006

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Code of Regulations. Title 17, Section 7960.

(a) When a public beach or public water-contact sports area fails to meet any of the standards as set forth in Section 7957 or 7958 above, the local health officer or the Department, after taking into consideration the causes therefor, may at his or its discretion close, post with warning signs, or otherwise restrict use of said public beach or public water-contact sports area, until such time as corrective action has been taken and the standards as set forth in 7957 and 7958 above are met.

Objective/Criterion Reference:

California Code of Regulations, Title 17, Section 7960

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Beach posting data was for posting for Doheny State Park beach.

Temporal Representation:

The beach posting covers the time frame of January 2000 -December 2007.

Environmental Conditions:

QAPP Information:

Samples were collected in compliance with County of Orange's Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

77641

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

242

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Zero of the 242 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, Lower San Juan HSA, at North Doheny State Park Campground.

Temporal Representation:

The samples were collected from January 2008 through August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the beach watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29331

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

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 January 2004 through December 2006. A total of 123 single samples were collected with 6 samples associated with storm events. Of those 6 samples, six exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information.

Data Reference:

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

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

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

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from January 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29329

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

123

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from January 2004 through December 2006. A total of 123 single samples were collected with 22 samples exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

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

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from January 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74983

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

285

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, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and results are as follows: 4 of 285 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, Lower San Juan HSA, at North Doheny State Park Campground was collected at 2 monitoring sites [ 10000' SOUTH OUTFALL, Dana Strands - Selva Ramp]

Temporal Representation:

Data was collected over the time period 1/3/2008-8/30/2010.

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 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29563

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 123 single samples were collected with 6 samples correlated with a storm event. None of the 6 samples exceeded the single sample water quality objective. This information will not be used in determining a listing decision, but is of interest to the Regional Board and has been included here as additional anecdotal information.

Data Reference:

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

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Total coliform density shall not exceed 1,000 per 100ml.

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30813

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

117

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected of which 117 are dry weather (AB411) samples with none exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Total coliform density shall not exceed 1,000 per 100ml.

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

30952

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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

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:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

The data assessed is AB411 data which is data collected during the time frame of April 1st to October 31st (summer months) during the aforementioned time period.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74984

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

134

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

None of the 134 samples exceeded the total coliform objective. For these stations, samples were collected from surfzone upcoast and surfzone downcoast. The higher of the two values was used for the geomean calculation.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean for total coliform shall not exceed more than 1000/100ml. Water Quality Control Plan for the San Diego Basin. Water Quality Control Plan for Ocean Waters.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

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 from Coastal Stormdrain at Doheny State Beach (surfzone upcoast and surfzone downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to 2009.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74985

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

147

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

One of the 147 samples exceeded the fecal coliform objective. For this station, samples were collected from surfzone upcoast and surfzone downcoast. The results represent the higher of the two values.

Data Reference:

Data for Various Waterbodies in Region 8 and Region 9, 2006-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The single sample total coliform concentration shall not exceed more than 10000/100ml. Water Quality Control Plan for Ocean Waters of California. Region 9 Basion Plan.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

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 from site DSB4, Coastal Stormdrain at Doheny State Beach (surzone upcoast and surzone downcoast).

Temporal Representation:

The samples were collected in February 2007.

Environmental Conditions:

QAPP Information:

The samples were collected and analyzed under the Quality Assurance Management Plan for The Orange County Stormwater Program. Coastal Stormdrain Outfall Monitoring Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

75010

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for total coliform states that the coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Three Arch Bay site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29565

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

123

Number of Exceedances:

Data and Information Type:

PWS pathogen monitoring (ambient water)

Data Used to Assess Water Quality:

Beach monitoring data was collected by the County of Orange from May 2004 through December 2006. A total of 123 single samples were collected with none exceeding the single sample water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Total coliform density shall not exceed 1,000 per 100ml.

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

29564

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

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 2004 through December 2006. A total of 123 single samples were collected and 32 monthly geomeans calculated. From the 32 geomeans, none exceeding the geomean water quality objective.

Data Reference:

The National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permit, Coastal Storm Drain Outfall Program. Bacteria Shoreline Data. 2002 through 2007

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geomean: Total coliform density shall not exceed 1,000 per 100ml.

Single Sample Maximum: Total coliform density shall not exceed 10,000 per 100ml (SWRCB, 2005).

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Samples were collected at least once a week from May 2004 through December 2006.

Environmental Conditions:

QAPP Information:

Quality control for the bacteria analysis portion of this study was conducted in accordance with the County of Orange Quality Assessment/Quality Control document.

QAPP Information Reference(s):

County of Orange. Quality Assurance/Quality Control Manual, February 2004 Bacteria specific

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

74986

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

121

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 121 geomeans exceeded the objective.

Data Reference:

Data for Region 9 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for total coliform states that the coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at the Dana Strands - Selva Ramp site.

Temporal Representation:

Samples were collected from January 2008 to August 2010.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234476

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 1 of the 4 samples exceeded the Statistical Threshold Value (STV) water quality threshold for Enterococcus. The STV is based on a 10% exceedance rate that is calculated monthly.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the bacteria water quality objective to protect the REC-1 beneficial for all ocean waters for Enterococci is a statistical value threshold (STV) of 110 cfu/100 mL. The STV shall not be exceeded by more than 10 percent of the samples collected in a calendar month, calculated in a static manner.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4U

Temporal Representation:

The samples were collected between the days of 2016-01-04 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234498

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 4 samples exceeded the Statistical Threshold Value (STV) water quality threshold for Enterococcus. The STV is based on a 10% exceedance rate that is calculated monthly.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4D

Temporal Representation:

The samples were collected between the days of 2016-01-04 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234373

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 16 of the 51 samples exceeded the Statistical Threshold Value (STV) water quality threshold for Enterococcus. The STV is based on a 10% exceedance rate that is calculated monthly.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4Z

Temporal Representation:

The samples were collected between the days of 2015-04-06 and 2019-06-10 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.

Line of Evidence (LOE) for Decision ID 132168, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground

LOE ID:

234395

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:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, Lower San Juan HSA, at North Doheny State Park Campground to determine beneficial use support and the results are as follows: 0 of the 4 samples exceeded the water quality threshold for Coliform, Fecal. The water quality threshold is based on a Single Sample Maximum (SSM) value that is calculated daily.

Data Reference:

Coastal Counties in Region 9 including: Orange, San Diego, and Los Angeles counties.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2019) states that the Single Sample Maximum fecal coliform density not exceed 400 per 100 mL.

Objective/Criterion Reference:

SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at 1 monitoring site(s), station(s): DSB4U

Temporal Representation:

The samples were collected between the days of 2017-09-23 and 2019-03-21 .

Environmental Conditions:

QAPP Information:

QAPP for the Orange County Beachwatch data

QAPP Information Reference(s):

QAPP for the Orange County Beachwatch data for the 2020 Integrated Report.