Final California 2010 Integrated Report (303(d) List/305(b) Report)

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2005) states that the single sample maximum for Enterococcus shall not exceed 104 MPN/100 mL.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Data for this line of evidence for Pacific Ocean at Asilomar State Beach was collected at one AB411 monitoring site (Sunset Dr. @ Arena)

Temporal Representation:

Data was collected over the time period 2/1/2005 - 10/30/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.

Environmental Conditions:

QAPP Information:

QA information not available

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4623, Enterococcus	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

367

Pollutant:

Enterococcus

LOE Subgroup:

Health Advisories

Matrix:

Not Specified

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:

Monterey County posted 5 advisories/warnings for Sunset Drive at Arena Beach from 1999 to 2003. Advisories were for high bacteria (enterococcus), (CCRWQCB, 2004d).

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Assembly Bill 411:
Weekly monitoring is required from April to October at all beaches with more than 50,000 annual visitors or at beaches located in areas adjacent to storm drains that flow during the summer. Some counties continue testing year round. Weekly samples must be tested for three indicator organisms: total coliform, fecal coliform, and enterococcus. Beaches that fail to meet the state's criteria for any one of the three indicators are to be posted with conspicuous warning signs to notify the public of health risks associated with swimming in these areas. Closings and advisories are issued on a discretionary basis. AB 411 requires the State Water Resources Control Board (SWRCB) to post monthly beach data from coastal counties throughout the state. The surveys list beach warnings, beach closures, and rain advisories resulting from bacterial contamination.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Sunset Drive at Arena Beach is between beach located at Sunset Drive and Arena and rocky outcropping separating Spanish Bay from Asilomar Beach, City of Pacific Grove and Pebble Beach community.

Temporal Representation:

Advisories were posted in 1999, 2002, and 2003. Each was posted for a few days.

Environmental Conditions:

QAPP Information:

Monterey County Health Department, Division of Environmental Health QAPP

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4623, Enterococcus	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

368

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:

Not Specified

Data Used to Assess Water Quality:

Monterey County collected 113 bacteria samples from 2001 through 2004 at Sunset Drive at Arena Beach. Thirty-day mean concentrations of Enterococcus were calculated. None of 76 means were in exceedance of the criteria (CCRWQCB, 2004d).

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

AB411: Based on the mean of the logarithms of the results of at least five weekly samples during any 30-day sampling period, the density of Enterococcus in water from any sampling station at a public beach or public water contact sports area, shall not exceed 35 MPN/100 ml.

Guideline Reference:

Spatial Representation:

Sunset Drive at Arena Beach is between beach located at Sunset Drive and Arena and rocky outcropping separating Spanish Bay from Asilomar Beach, City of Pacific Grove and Pebble Beach community

Temporal Representation:

Samples were collected from 4/2/2001 through 6/7/2004. As an AB411 beach, Sunset Drive at Arena Beach was sampled weekly April 1 - October 31 and monthly November 1 - March 30.

Environmental Conditions:

QAPP Information:

Monterey County Health Department, Division of Environmental Health QAPP

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4623, Enterococcus	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

369

Pollutant:

Enterococcus

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

113

Number of Exceedances:

Data and Information Type:

PATHOGEN MONITORING

Data Used to Assess Water Quality:

Monterey County collected 113 bacteria samples from 2001 through 2004 at Sunset Drive at Arena Beach. Four of 113 samples were in exceedance of the single sample criterion for Enterococcus (CCRWQCB, 2004d).

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

AB411: The single sample maximum criterion for Enterococcus in marine waters = 104 MPN/100 ml.

Guideline Reference:

Spatial Representation:

Sunset Drive at Arena Beach is between beach located at Sunset Drive and Arena and rocky outcropping separating Spanish Bay from Asilomar Beach, City of Pacific Grove and Pebble Beach community.

Temporal Representation:

Samples were collected from 4/2/2001 through 6/7/2004. As an AB411 beach, Sunset Drive at Arena Beach was sampled weekly April 1 - October 31 and monthly November 1 - March 30.

Environmental Conditions:

QAPP Information:

Monterey County Health Department, Division of Environmental Health QAPP

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4623, Enterococcus	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

366

Pollutant:

Enterococcus

LOE Subgroup:

Health Advisories

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Water Contact Recreation

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Monterey County posted Rain Advisories for all beaches in the county on 15 occasions from 2000 to 2004. Each advisory was posted for several days surrounding rain events in the county (CCRWQCB, 2004d).

Data Reference:

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

The rain advisories are issued for all beaches in Monterey County, including Sunset Drive at Arena Beach is between beach located at Sunset Drive and Arena and rocky outcropping separating Spanish Bay from Asilomar Beach, City of Pacific Grove and Pebble Beach community.

Temporal Representation:

Rain advisories for the beaches were issued from February 2000 through November 2004.

Environmental Conditions:

QAPP Information:

Monterey County Health Department, Division of Environmental Health QAPP

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 4623, Enterococcus	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

20058

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:

Central Coast Regional Board Staff assessed data for Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach) to determine beneficial use support and results are as follows: 0 of 16 samples exceed the criterion for Enterococci.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2005) states that the geometric mean for Enterococcus shall not exceed 35 MPN/100 mL.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Data for this line of evidence for Pacific Ocean at Asilomar State Beach was collected at one AB411 monitoring site (Sunset Dr. @ Arena)

Temporal Representation:

Data was collected over the time period 2/1/2005 - 10/30/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.

Environmental Conditions:

QAPP Information:

QA information not available

QAPP Information Reference(s):


DECISION ID	12256	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

Pollutant:	Escherichia coli (E. coli)
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:	This water segment-pollutant combination is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this water segment-pollutant combination. Zero of four samples exceeded the single sample maximum criterion and one of four geomean assessments exceeded the geomean criterion. 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. Zero of four samples exceeded the single sample maximum criterion and one of four geomean assessments exceeded the geomean criterion and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

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

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:	After review of 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.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 12256, Escherichia coli (E. coli)	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

20068

Pollutant:

Escherichia coli (E. coli)

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:

Central Coast Regional Board Staff assessed data for Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach) to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Escherichia coli.

Data Reference:

Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

USEPA Ambient Water Quality Criteria for Bacteria -1986.

Objective/Criterion Reference:

Evaluation Guideline:

Single sample maximum allowable density for E. coli in freshwater is 235 MPN/100mL (as stated in Table 4, page 15)

Guideline Reference:

Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002

Spatial Representation:

Data for this line of evidence for Pacific Ocean at Asilomar State Beach was collected at one AB411 monitoring site (Sunset Dr. @ Arena)

Temporal Representation:

Data was collected over the time period 2/1/2005 - 10/30/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.

Environmental Conditions:

QAPP Information:

QA information not available

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 12256, Escherichia coli (E. coli)	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

20067

Pollutant:

Escherichia coli (E. coli)

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:

Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

USEPA Ambient Water Quality Criteria for Bacteria -1986.

Objective/Criterion Reference:

Evaluation Guideline:

Steady State Geometric Mean Indicator Density is 126 MPN/100mL (as stated in Table 4, Page 15).

Guideline Reference:

Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002

Spatial Representation:

Data for this line of evidence for Pacific Ocean at Asilomar State Beach was collected at one AB411 monitoring site (Sunset Dr. @ Arena)

Temporal Representation:

Data was collected over the time period 2/1/2005 - 10/30/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.

Environmental Conditions:

QAPP Information:

QA information not available

QAPP Information Reference(s):


DECISION ID	12254	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

Pollutant:	Fecal Coliform
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:	This water segment-pollutant combination is being considered for placement on the section 303(d) list under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this water segment-pollutant combination. Water Board staff assessed one data set against two different evaluation criteria (i.e. single sample maximum and geomean). Zero of 60 samples exceeded the single sample maximum criterion and zero of 16 geomean assessments exceeded the geomean criterion. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of 60 samples exceeded the single sample maximum criterion and zero of 16 geomean assessments exceeded the geomean criterion and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.

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

State Board Review of Regional Board Conclusion and Recommendation:

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

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 12254, Fecal Coliform	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

20057

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:

Central Coast Regional Board Staff assessed data for Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach) to determine beneficial use support and results are as follows: 0 of 60 samples exceed the criterion for Coliform, Fecal.

Data Reference:

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

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California Ocean Plan (SWRCB 2005) states that the single sample maximum for fecal coliform shall not exceed 400 MPN/100 mL.

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Data for this line of evidence for Pacific Ocean at Asilomar State Beach was collected at one AB411 monitoring site (Sunset Dr. @ Arena)

Temporal Representation:

Data was collected over the time period 2/1/2005 - 10/30/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.

Environmental Conditions:

QAPP Information:

QA information not available

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 12254, Fecal Coliform	Region 3
Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach)

LOE ID:

20056

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:

Central Coast Regional Board Staff assessed data for Pacific Ocean at Sunset Drive at Arena Beach (part of Asilomar Beach) to determine beneficial use support and results are as follows: 0 of 16 samples exceed the criterion for Coliform, Fecal.

Data Reference: