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

Supporting Information

Regional Board 4 - Los Angeles Region

Water Body Name:	Peninsula Beach
Water Body ID:	CAX4031100020020131145033
Water Body Type:	Coastal & Bay Shoreline


DECISION ID	68271	Region 4
Peninsula Beach

Pollutant:	Indicator Bacteria
Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status	Revised
Sources:	A Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for removal from the CWA section 303(d) List under section 4.3 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status. 25 lines of evidence are available in the administrative record to assess this pollutant. Use of data assessed against the shellfish standard is inappropriate at this time and will not be considered in the final decision. Only 3 lines of evidence will be used for the final decision because those lines of evidence already include all the data used from the other lines of evidence. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for removing this water segment-pollutant combination from 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. 91 of 663, 0 of 566, and 16 of 717 samples exceeded the OBJECTIVE and this does not exceed the allowable frequency listed in Table 4.2 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. State Board has reviewed this Decision, and has determined that the Listing still applies. The total coliform Shellfish objective is under review, but still applies under the Ocean Plan.

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

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the following changes to the decision: 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.

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86982

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

348

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Forty-six of the 348 samples exceeded the geomean objective for enterococcus.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The enterococcus concentration shall not exceed 35/100 ml. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site 23000 collected by Ventura County. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86996

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

366

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Five of the 366 samples exceeded the objective for total coliform when the fecal/total coliform ratio exceeds 0.1.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Ratio: Total coliform density shall not exceed 1,000 per 100 ml when the fecal coliform/total coliform ratio exceeds 0.1. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site 23000 collected by Ventura County. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86983

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

208

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Thiry-two of the 208 geomeans exceeded the entercoccus objective.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for enterococcus states that the fecal coliform 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 from Peninsula Bch/Harbor Cove.

Temporal Representation:

Samples were collected approximately once a week from 2005 to 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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86978

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

222

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed BW data for Peninsula Beach to determine beneficial use support and results are as follows: 14 of 222 samples exceed the criterion for Enterococci.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2009) single sample maximum states that enterococcus density shall not exceed 104 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 Peninsula Beach was collected at 1 monitoring site [ Peninsula Bch/Harbor Cove]

Temporal Representation:

Data was collected over the time period 1/4/2005-8/30/2010.

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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86980

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

183

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Twelve of the 183 samples exceeded the objective for enterococcus.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The enterococcus concentration shall not exceed 104/100 ml. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) station M1 collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to August 2007.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86979

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

366

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Twenty-four of the three hundred and sixty six (366) samples exceeded the Enterococcus objective.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The enterococcus concentration shall not exceed more than 104/100 ml. Basin Plan for the Los Angeles Region ref1485.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at station 23000 of Peninsula Beach (Harbor Cove).

Temporal Representation:

The samples were collected once a month from January 2002 to November 2009. CAX4031100020020131145033

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

133457

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

663

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

91 of the 663 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2008 to 2017. Samples were collected year-round from 2000 to 2007. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.

Data Reference:

County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the six-week rolling geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 30 enterococci bacteria per 100 milliliters, generally not less than five samples calculated weekly.

Objective/Criterion Reference:

Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula/Harbor Cove Beach (23000).

Temporal Representation:

Samples were collected approximately once a week from 1998 to 2017.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86985

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

366

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

eight of the three hundred and sixty six (366) samples exceeded the Fecal Coliform objective.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The fecal coliform concentration shall not exceed more than 400/100 ml. Basin Plan for the Los Angeles Region ref1485.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at station 23000 of Peninsula Beach (Harbor Cove). CAX4031100020020131145033

Temporal Representation:

The samples were collected once a month from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86986

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

196

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Three of the 233 samples exceeded the objective for fecal coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The fecal coliform concentration shall not exceed 400/100 ml Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site M1. Collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to December 2008.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86987

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

141

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 141 samples exceeded the geomean objective for fecal coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The fecal coliform concentration shall not exceed 200/100 ml Basin Plan.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove)site M1 collected by the City Of Ventura.. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to December 2008.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86988

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

348

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

One of the 348 samples exceeded the geomean objective for fecal coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The fecal coliform concentration shall not exceed 200/100 ml. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove). CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86984

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

222

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed BW data for Peninsula Beach to determine beneficial use support and results are as follows: 6 of 222 samples exceed the criterion for Coliform, Fecal.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2009) single sample maximum states that fecal coliform density shall not exceed 400 per 100ml

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 Peninsula Beach was collected at 1 monitoring site [ Peninsula Bch/Harbor Cove]

Temporal Representation:

Data was collected over the time period 1/4/2005-8/30/2010.

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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86989

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

208

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Zero of the 208 geomeans exceeded the fecal coliform objective.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for fecal coliform states that the fecal 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 from Peninsula Bch/Harbor Cove.

Temporal Representation:

Samples were collected approximately once a week from 2005 to 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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

133455

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

717

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

16 of the 717 single sample exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2008 to 2017. Samples were collected year-round from 2000 to 2007. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.

Data Reference:

County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula/Harbor Cove Beach (23000).

Temporal Representation:

Samples were collected approximately once a week from 1998 to 2017.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

133456

Pollutant:

Fecal Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

566

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

0 of the 566 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2008 to 2017. Samples were collected year-round from 2000 to 2007. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.

Data Reference:

County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the 30-day geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 200 fecal coliform bacteria per 100 milliliters, calculated based on the five most recent samples.

Objective/Criterion Reference:

Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula/Harbor Cove Beach (23000).

Temporal Representation:

Samples were collected approximately once a week from 1998 to 2017.

Environmental Conditions:

QAPP Information:

The samples were collected for the Beach Watch program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

3526

Pollutant:

Indicator Bacteria

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Water Contact Recreation

Number of Samples:

102

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

One hundred two samples, 19 samples exceeding.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows:
(1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters, if the ratio of fecal/total coliform bacteria exceeds 0.1; or
(B) 10,000 total coliform bacteria per 100 milliliters; or
(C) 400 fecal coliform bacteria per 100 milliliters; or
(D) 104 enterococcus bacteria per 100 milliliters.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

1 station: VC(23000). This station represents the beach 50 yards on either
side of the sampling point. Samples were collected in the beach area within two rock jetties.

Temporal Representation:

Data collected in 1999, 2000, and 2001.

Environmental Conditions:

QAPP Information:

County Health Department.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86990

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Shellfish Harvesting

Number of Samples:

222

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed bw data for Peninsula Beach to determine beneficial use support and results are as follows: 98 of 222 samples exceed the criterion for Coliform, Total.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California Ocean Plan (2009) states the following: At all areas where shellfish may be harvested for human consumption, the following bacterial objectives shall be maintained throughout the water column: Ten percent of the samples collected during any 30-day period shall not exceed 230 MPN/100mL.

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 Peninsula Beach was collected at 1 monitoring site [ Peninsula Bch/Harbor Cove]

Temporal Representation:

Data was collected over the time period 1/4/2005-8/30/2010.

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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86993

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

196

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Two of the 196 samples exceeded the objective for total coliform when the fecal/total coliform ratio exceeds 0.1.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Ratio: Total coliform density shall not exceed 1,000 per 100 ml when the fecal coliform/total coliform ratio exceeds 0.1. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site M1. Collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to December 2008.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86998

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

208

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Fourteen of the 208 geomeans exceeded the total coliform objective.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The geometric mean standard for total coliform states that the fecal 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 from Peninsula Bch/Harbor Cove.

Temporal Representation:

Samples were collected approximately once a week from 2005 to 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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86994

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

141

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Twenty-one of the 141 samples exceeded the geomean objective for total coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The total coliform concentration shall not exceed 1000/100 ml. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site M1 collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to December 2008.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86995

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

196

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Seven of the 196 samples exceeded the objective for total coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The total coliform concentration shall not exceed 10000/100 ml. Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site M1 collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to December 2008.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86991

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

222

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed BW data for Peninsula Beach to determine beneficial use support and results are as follows: 9 of 222 samples exceed the criterion for Coliform, Total.

Data Reference:

Data for Region 4 Beach Watch.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (2009) single sample maximum states that total coliform density shall not exceed 10,000 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 Peninsula Beach was collected at 1 monitoring site [ Peninsula Bch/Harbor Cove]

Temporal Representation:

Data was collected over the time period 1/4/2005-8/30/2010.

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 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86992

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

366

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Fifteen of the three hundred and sixty six (366) samples exceeded the total coliform objective.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The total coliform concentration shall not exceed more than 10000/100 ml. Basin Plan for the Los Angeles Region ref1485.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The samples were collected at station 23000 of Peninsula Beach (Harbor Cove). CAX4031100020020131145033

Temporal Representation:

The samples were collected once a month from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86997

Pollutant:

Total Coliform

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

348

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Thirty-five of the 348 samples exceeded the geomean objective for total coliform.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The total coliform concentration shall not exceed 1000/100 ml Basin Plan Region 4. ref1485 California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) site 23000 collected by Ventura County. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to November 2009.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 68271, Indicator Bacteria	Region 4
Peninsula Beach

LOE ID:

86981

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

133

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Fifteen of the 133 samples exceeded the geomean objective for enterococcus.

Data Reference:

Data for Bacteria Indicator from Peninsula Beach (Harbor Cove), Ventura Harbor, Ventura Keys, and Arundell Baranca, 2002-2009.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Geometric Mean: The enterococcus concentration shall not exceed 35/100 ml. Basin Plan. California Ocean Plan 2006.

Objective/Criterion Reference:

Water Quality Control Plan Los Angeles Region R4 Basin Plan

Objective/Criterion Reference:

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

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected from Peninsula Beach (Harbor Cove) Site M1 collected by the City of Ventura. CAX4031100020020131145033

Temporal Representation:

Samples were collected approximately weekly from January 2002 to August 2007.

Environmental Conditions:

QAPP Information:

Laboratory QA document is provided. The samples were analyzed under the Quality Assurance Program for the City of Buenaventura Wastewater Laboratory.

QAPP Information Reference(s):