Draft California 2024 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park
Water Body ID:	CAC9011100020110512164024
Water Body Type:	Coastal & Bay Shoreline


DECISION ID	149195	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Ammonia
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149195, Ammonia	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301919

Pollutant:

Nitrogen, ammonia (Total Ammonia)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

None of three sample medians exceeded the water quality objective for total ammonia. Each samples was calculated a median using the sample and all other samples taken previously within a 180-day period.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life. The Ocean Plan objective for total ammonia as nitrogen is a moving 6-month median of 600 ug/L.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Aster Street LBD2.

Temporal Representation:

Samples were collected on 9/13/07, 5/21/08 and 10/2/08.

Environmental Conditions:

QAPP Information:

A signed QAPP was included with the stated goal of ensuring the consistent collection of accurate water quality information that will used to satisfy the objectives of the Orange County Stormwater Program.

QAPP Information Reference(s):

This is a placeholder for previously assessed data that does not have quality assurance information but would require it under newly developed policies. These LOEs were previously assessed and approved at the Regional, State and Federal level in past cycles. The LOEs needed to be moved and/or reassessed but required this reference code for movement within the decision making database.


DECISION ID	149112	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Cadmium
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149112, Cadmium	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301929

Pollutant:

Cadmium

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

None of the three samples exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 1 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

Data were submitted with the County of Orange Stormwater Program Quality Assurance Management Plan (QAMP) dated January 2010. However, data were collected prior to the development of this QAMP, therefore the quality of these data are unknown.

QAPP Information Reference(s):


DECISION ID	149113	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Chlorpyrifos
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149113, Chlorpyrifos	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301930

Pollutant:

Chlorpyrifos

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fixed station physical/chemical (conventional plus toxic pollutants)

Data Used to Assess Water Quality:

None of two samples exceeded the Criteria Continuous Concentration for Chlorpyrifos of 9 ng/L, however for one sample the reporting limit was 10 ng/L which is greater than the evaluation guideline, therefore this data is not usable.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Marine communities, including vertebrate, invertebrate, and plant species, shall not be degraded.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game

Spatial Representation:

Samples were collected from site LB-2.

Temporal Representation:

Samples were collected 2007 to 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149114	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Copper
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149114, Copper	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301921

Pollutant:

Copper

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

All three samples did not exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 3 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149115	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Diazinon
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149115, Diazinon	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301922

Pollutant:

Diazinon

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fixed station physical/chemical (conventional plus toxic pollutants)

Data Used to Assess Water Quality:

None of the six samples exceed the maximum concentration for Diazinon criteria of 820.0 ng/L.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Marine communities, including vertebrate, invertebrate, and plant species, shall not be degraded.

Objective/Criterion Reference:

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

Evaluation Guideline:

The Criteria Continuous Concentration for diazinon in saltwater is 820 ng/L.

Guideline Reference:

Spatial Representation:

Samples were collected from site NI-1d.

Temporal Representation:

Samples were collected from 2007 to 2009.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	132159	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

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)(2018)
Revision Status	Revised
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 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status. Four lines of evidence are available in the administrative record to assess this pollutant for REC-1. Three of 199 samples exceed the GM threshold for Enterococci. Zero of 64 samples exceed the GM threshold for Fecal Coliform. 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. Three of 199 samples exceeded the Enterococci water quality threshold, and zero of 64 samples exceeded the Fecal Coliform water quality threshold for the protection of REC-1, 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. 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 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:	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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234369

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 12 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): HEISLRD

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234470

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:

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): HEISLRU

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234339

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 1 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): HEISLRD

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234337

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

197

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 3 of the 197 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:

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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234262

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:

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): HEISLRU

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234382

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 5 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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234406

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

216

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 2 of the 216 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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234227

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 64 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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234413

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 20 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): HEISLRU

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234440

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:

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): HEISLRD

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234201

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

216

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 38 of the 216 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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234216

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 20 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): HEISLRD

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234280

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

216

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed data for Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 5 of the 216 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): HEISLRZ

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234162

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 20 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): HEISLRU

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234286

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 3 of the 20 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): HEISLRD

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

234292

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, San Joaquin Hills HSA, at Heisler Park to determine beneficial use support and the results are as follows: 0 of the 20 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): HEISLRU

Temporal Representation:

The samples were collected between the days of 2015-10-26 and 2018-11-19 .

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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75184

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

138

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

None of the 138 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 Heisler Park Stormdrain (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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75183

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

149

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 149 samples exceeded the total 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 HEISLR, Heisler Park Stormdrain at High Drive (surfzone upcoast and downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to April 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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75182

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

138

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

None of the 138 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 Heisler Park Stormdrain (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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75177

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

149

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 149 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:

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 HEISLR, Heisler Park Stormdrain at High Drive (surfzone upcoast and downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to April 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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75175

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

149

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 149 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 HEISLR, Heisler Park Stormdrain at High Drive (surfzone upcoast and surfzone downcoast).

Temporal Representation:

The samples were collected once a week from July 2006 to April 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 132159, Indicator Bacteria	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

75176

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

138

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

None of the 138 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 Heisler Park Stormdrain (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):


DECISION ID	149116	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Lead
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149116, Lead	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301916

Pollutant:

Lead

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

None of the three samples exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 2 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149117	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Malathion
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149117, Malathion	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301917

Pollutant:

Malathion

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fixed station physical/chemical (conventional plus toxic pollutants)

Data Used to Assess Water Quality:

None of the samples exceeded the maximum concentration for Malathion of 100 ng/L.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Marine communities, including vertebrate, invertebrate, and plant species, shall not be degraded.

Objective/Criterion Reference:

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

Evaluation Guideline:

The maximum (Instantaneous) concentration for Malathion in saltwater is 100 ng/L.

Guideline Reference:

Spatial Representation:

Samples were collected from site LB-2.

Temporal Representation:

Samples were collected between 5/21/08 and 9/13/07.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149118	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Nickel
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded.

Line of Evidence (LOE) for Decision ID 149118, Nickel	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301918

Pollutant:

Nickel

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

The reporting limits for all three non-detect samples exceed the water quality objective, these data could not be used in the assessment.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 2 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149119	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Oxygen, Dissolved
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149119, Oxygen, Dissolved	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301920

Pollutant:

Oxygen, Dissolved

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Numeric data generated from 3 minimums of Dissolved Oxygen concentrations had no exceedences.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Dissolved oxygen levels shall not be less than 5.0 mg/l in inland surface waters with designated MAR or WARM beneficial uses. The annual mean dissolved oxygen concentration shall not be less than 7 mg/l more than 10% of the time.

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from the LB-2d station.

Temporal Representation:

Samples were collected once in 2007 and twice in 2008.

Environmental Conditions:

QAPP Information:

NPDES quality assurance.

QAPP Information Reference(s):


DECISION ID	149120	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Selenium
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149120, Selenium	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301923

Pollutant:

Selenium

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

None of the three samples exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 15 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149121	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Silver
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149121, Silver	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301924

Pollutant:

Silver

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

None of the three samples exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 0.7 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):


DECISION ID	149122	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Toxicity
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149122, Toxicity	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301927

Pollutant:

Toxicity

LOE Subgroup:

Toxicity

Matrix:

Water

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

TOXICITY TESTING

Data Used to Assess Water Quality:

Three samples were collected to test for toxicity. One of the three samples exhibited statistically significant toxicity. The toxicity tests that exhibited significant toxicity included Purple Urchin development.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life

Objective/Criterion Reference:

Water Quality Control Plan for the San Diego Basin

Evaluation Guideline:

Toxicity is defined as a statistically significant effect in the sample exposure compared to the control using EPA-recommended hypothesis testing. The t-test is used to determine if there is a statistically significant decrease in organism response in the sample as compared to the control.

Guideline Reference:

Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fifth Edition. EPA-821-R-02-012

Guideline Reference:

Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fourth Edition. U.S. Environmental Protection Agency Office of Water, Washington, DC EPA-821-R-02-013

Spatial Representation:

The samples were collected at station LB-2d Coastal Stormdrain.

Temporal Representation:

The samples were collected in September and May 2007 and October 2008.

Environmental Conditions:

QAPP Information:

The data collected under the Quality Assurance Management Plan for The Orange County Stormwater Program. The SWAMP measurement quality objectives were followed for toxicity data. The performance of toxicity bioassays and evaluation of reference toxicants were performed using USEPA and Standard Methods.

QAPP Information Reference(s):


DECISION ID	149123	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

Pollutant:	Zinc
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. Beneficial use support will be reassessed in a future cycle, if more data are available.

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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 149123, Zinc	Region 9
Pacific Ocean Shoreline, San Joaquin Hills HSA, at Heisler Park

LOE ID:

301928

Pollutant:

Zinc

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total Dissolved

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Non-fixed station physical/chemical (conv + toxicants during key seasons and flows)

Data Used to Assess Water Quality:

None of the three samples exceed the water quality objective.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan Table B lists 6-month median concentration of 20 ug/L to protect aquatic life in marine waters.

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

All three samples were collected from station LB-2d.

Temporal Representation:

Samples were collected from 2007 and 2008.

Environmental Conditions:

QAPP Information:

QAPP Information Reference(s):