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

Supporting Information

Regional Board 3 - Central Coast Region

Water Body Name:	Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)
Water Body ID:	CAO3091100020210611061936
Water Body Type:	Ocean


DECISION ID	150790	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Aldrin
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. Note, one of the water sample results were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. For the commercial or recreational collection of fish, shellfish, or organisms, zero of 17 total water samples (active sampler), zero of one dissolved water samples (active sampler) and zero of zero water samples (water) exceed the evaluation guideline. For the shellfish harvesting beneficial use, zero of 17 total water samples (active sampler), zero of one dissolved water samples (active sampler) and zero of zero water samples (water) exceed the evaluation guideline. These beneficial uses are fully supported. 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. 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. No samples exceed the evaluation guideline for the municipal and domestic supply or the shellfish harvesting beneficial uses, and these do not exceed the allowable frequency listed in Table 3.1 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:

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303975

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 9 samples exceeded the water quality threshold for Aldrin. Although a total of 10 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303971

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 8 samples exceeded the water quality threshold for Aldrin. Although a total of 10 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303998

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 1 samples exceeded the water quality threshold for Aldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2015-10-16

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303999

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2015-10-16

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303946

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Aldrin. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

Data for this waterbody were collected over the date range 2018-08-13 to 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303950

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303949

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 8 samples exceeded the water quality threshold for Aldrin. Although a total of 10 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150790, Aldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303947

Pollutant:

Aldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000022 ug/L for aldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

Data for this waterbody were collected over the date range 2018-08-13 to 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150780	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Endosulfan
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the marine habitat beneficial use, zero of 14 total water samples (active sampler), zero of one dissolved water samples (active sampler) and zero of two water samples (water) exceed the evaluation guideline. The readily available data and information are insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 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. 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. No samples exceed the evaluation guideline for the marine habitat beneficial use, and this does not exceed the allowable frequency listed in Table 3.1 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. 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 150780, Endosulfan	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304257

Pollutant:

Endosulfan

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.009 ug/L for Endosulfan to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150780, Endosulfan	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304256

Pollutant:

Endosulfan

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Endosulfan.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.009 ug/L for Endosulfan to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150780, Endosulfan	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304254

Pollutant:

Endosulfan

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.009 ug/L for Endosulfan to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150780, Endosulfan	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304253

Pollutant:

Endosulfan

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Endosulfan.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.009 ug/L for Endosulfan to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150780, Endosulfan	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304255

Pollutant:

Endosulfan

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.009 ug/L for Endosulfan to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2016-03-24 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150781	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Endrin
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the marine habitat beneficial use, zero of 14 samples (active sampler, total fraction), and zero of one sample (active sampler, dissolved fraction), and zero of three water samples exceed the evaluation guideline. The readily available data and information are insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 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. 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. No samples exceed the evaluation guidelines for the marine habitat beneficial use. This does not exceed the allowable frequency listed in Table 3.1 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. 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 150781, Endrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303981

Pollutant:

Endrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.002 ug/L for Endrin to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2016-03-24 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150781, Endrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303958

Pollutant:

Endrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Endrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.002 ug/L for Endrin to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150781, Endrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303955

Pollutant:

Endrin

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Endrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.002 ug/L for Endrin to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150781, Endrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303935

Pollutant:

Endrin

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.002 ug/L for Endrin to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150781, Endrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

303957

Pollutant:

Endrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Endrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.002 ug/L for Endrin to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150782	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Fluoranthene
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, zero of 18 water samples (active sampler) and zero of four water samples exceed the evaluation guideline. For the shellfish harvesting beneficial use, zero of 18 water samples (active sampler) and zero of four water samples exceed the evaluation guideline. 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. 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. No samples exceed the evaluation guidelines and these do not exceed the allowable frequency listed in Table 3.1 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. 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 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304287

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304265

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304288

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304285

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304263

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304264

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304262

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150782, Fluoranthene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304290

Pollutant:

Fluoranthene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Fluoranthene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 15 ug/L for Fluoranthene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150783	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Heptachlor
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. Note, one of the water sample results were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, zero of 20 total water samples (active sampler), zero of two dissolved water samples (active sampler) and zero of zero water samples (water) exceed the evaluation guideline. For the shellfish harvesting beneficial use, zero of 20 total water samples (active sampler), zero of two dissolved water samples (active sampler) and zero of zero water samples (water) exceed the evaluation guideline. 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. 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. No samples exceed the evaluation guidelines, and this does not exceed the allowable frequency listed in Table 3.1 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:

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304269

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Heptachlor. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

Data for this waterbody were collected over the date range 2018-08-13 to 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304271

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304040

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support, and the results are as follows: 0 of the 0 samples exceeded the evaluation guideline for Heptachlor. Although a total of 1 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

Data for this waterbody were collected over the date range 2018-08-13 to 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304266

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304062

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304268

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304267

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150783, Heptachlor	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304016

Pollutant:

Heptachlor

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 10 samples exceeded the water quality threshold for Heptachlor.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00005 ug/L for heptachlor to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150784	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Heptachlor epoxide
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, zero of 15 total water samples (active sampler), zero of two dissolved water samples (active sampler) and one of three water samples (water) exceed the evaluation guideline. For the shellfish harvesting beneficial use, zero of 15 total water samples (active sampler), zero of two dissolved water samples (active sampler) and one of three water samples (water) exceed the evaluation guideline. The readily available data and information are insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 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. 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. While one of three water samples exceed the evaluation guidelines for both the commercial or recreation collection of fish shellfish, or organisms and the shellfish harvesting beneficial use, no other water samples exceed the evaluation guidelines and this does not exceed the allowable frequency listed in Table 3.1 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. 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 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304212

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 8 samples exceeded the water quality threshold for Heptachlor Epoxide. Although a total of 10 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304141

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304065

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304216

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Heptachlor Epoxide.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304067

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Heptachlor Epoxide.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304142

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Heptachlor Epoxide. Although a total of 9 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304213

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Heptachlor Epoxide.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304217

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Heptachlor Epoxide.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304066

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 7 samples exceeded the water quality threshold for Heptachlor Epoxide. Although a total of 9 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150784, Heptachlor epoxide	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304140

Pollutant:

Heptachlor epoxide

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 8 samples exceeded the water quality threshold for Heptachlor Epoxide. Although a total of 10 samples were collected, 2 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00002 ug/L for heptachlor epoxide to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150785	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Hexachlorobenzene/ HCB
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, zero of 18 water samples (active sampler) and zero of four water samples (water) exceed the evaluation guideline. For the shellfish harvesting beneficial use, zero of 18 water samples (active sampler) and zero of four water samples (water) exceed the evaluation guideline. 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. 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. No samples exceed the evaluation guidelines and this does not exceed the allowable frequency listed in Table 3.1 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:

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304168

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304164

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304165

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304163

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304089

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304239

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304162

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150785, Hexachlorobenzene/ HCB	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304090

Pollutant:

Hexachlorobenzene/ HCB

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobenzene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for hexachlorobenzene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150786	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Hexachlorobutadiene
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the both the commercial or recreational collection of fish, shellfish, or organisms beneficial use and the shellfish harvesting beneficial use, zero of 17 total water samples (active sampler), zero of two dissolved water samples (active sampler) and zero of two water samples (water) exceed the evaluation guideline. 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. 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. No samples exceed the evaluation guidelines and this does not exceed the allowable frequency listed in Table 3.1 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:

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304116

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304112

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 8 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304114

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304111

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304043

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304041

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304243

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304244

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304245

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150786, Hexachlorobutadiene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304242

Pollutant:

Hexachlorobutadiene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Hexachlorobutadiene.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 14 ug/L for hexachlorobutadiene to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150787	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Hexachlorocyclohexane (HCH)
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the marine habitat beneficial use, zero of 14 samples (active sampler, total fraction), and zero of one sample (active sampler, dissolved fraction), and zero of four water samples exceed the evaluation guideline. The readily available data and information are insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. 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. 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. No samples exceed the evaluation guidelines for the marine habitat beneficial use. This does not exceed the allowable frequency listed in Table 3.1 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. 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 150787, Hexachlorocyclohexane (HCH)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304188

Pollutant:

Hexachlorocyclohexane (HCH)

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorocyclohexane (HCH).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.004 ug/L for total Hexachlorocyclohexane to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150787, Hexachlorocyclohexane (HCH)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304189

Pollutant:

Hexachlorocyclohexane (HCH)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Hexachlorocyclohexane (HCH).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.004 ug/L for total Hexachlorocyclohexane to protect aquatic life in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150787, Hexachlorocyclohexane (HCH)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304191

Pollutant:

Hexachlorocyclohexane (HCH)

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Hexachlorocyclohexane (HCH).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.004 ug/L for total Hexachlorocyclohexane to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150787, Hexachlorocyclohexane (HCH)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304187

Pollutant:

Hexachlorocyclohexane (HCH)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 7 samples exceeded the water quality threshold for Hexachlorocyclohexane (HCH).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.004 ug/L for total Hexachlorocyclohexane to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150787, Hexachlorocyclohexane (HCH)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304190

Pollutant:

Hexachlorocyclohexane (HCH)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

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:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 6-month median concentration of 0.004 ug/L for total Hexachlorocyclohexane to protect aquatic life in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2016-03-24 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	151991	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Omega Aragonite
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:	Omega Aragonite is being assessed using Listing Policy section 3.11, a situation-specific weight of evidence approach. As additional research is needed to increase confidence that the data assessed reflect waterbody conditions, the LOEs for this pollutant are not used to place waterbodies on the CWA section 303(d) list. Instead, an exceedance of the mean Omega Aragonite threshold of <1.4 will indicate the beneficial use may be potentially threatened and the waterbody will be placed in Category 3 if the number of measured exceedances supports rejection of the null hypothesis as presented in Table 3.2 of the Listing Policy for conventional or other pollutants. Eight lines of evidence are available in the administrative record to assess this pollutant. Four of the 8 samples exceed the Omega Aragonite threshold of <1.4. The number of exceedances does not indicate impairment under Listing Policy section 3.2; however, insufficient information is available to determine if the beneficial use is fully supported for this waterbody-pollutant combination. Beneficial use support will be reassessed in a future cycle, if more data are available. In order to make recommendations to list an ocean segment as impaired or to determine that the beneficial use is fully supported for ocean acidification using Omega Aragonite as an evaluation guideline, further research on the following points is needed to increase confidence that data assessed reflects waterbody conditions. 1. Impact of depth on aragonite saturation state, especially within the 0-200m range. 2. Timing in relation to data collection: Determining the number of days at a certain threshold for pteropod life stages. 3. Understanding natural aragonite saturation state levels in an upwelling state. 4. Seasonal variation and shift in dissolution rates.

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 the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:	In order to make recommendations to list an ocean segment as impaired or to determine that the beneficial use is fully supported for ocean acidification using Omega Aragonite as an evaluation guideline, further research on the following points is needed to increase confidence that data assessed reflects waterbody conditions. 1. Impact of depth on aragonite saturation state, especially within the 0-200m range. 2. Timing in relation to data collection: Determining the number of days at a certain threshold for pteropod life stages. 3. Understanding natural aragonite saturation state levels in an upwelling state. 4. Seasonal variation and shift in dissolution rates.

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 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308583

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed NOAA West Coast ocean acidification data for Pacific Ocean, Monterey Bay to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded (<1.4) the impairment threshold for Omega Aragonite.

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2016 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

The California SWRCB Marine Habitat Beneficial Use is defined as "Uses of water that support marine ecosystems including, but not limited to,
preservation or enhancement of marine habitats, vegetation such as kelp, fish, shellfish, or wildlife (e.g.,
marine mammals, shorebirds)." A beneficial use was chosen as the assessment criteria for ocean acdification as impacts due to Omega Aragonite can be from global and local sources.

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

The omega aragonite criterion for the protection of the marine habitat beneficial use is used to determine potential impairment of waterbodies due to ocean acidification; a threshold below 1.4 would indicate potential impairment of a waterbody. The omega aragonite saturation state is calculated by the product of the concentrations of dissolved calcium and carbonate ions divided by their product at equilibrium. Lower levels of omega aragonite are correlated with increased dissolution of pteropods (shell species) and a loss of marine life. In Bednaršek 2019, thresholds between 0.9 and 1.5 were found to indicate severe to mild shell dissolution of pteropods, with potential impairment indicated at approximately 1.2 ± 0.1 (for an overall threshold of 1.3) or below. A study conducted by Oregon State University concluded that the “maximum uncertainty of ±0.2 in the calculation of mean omega aragonite saturation state is required to adequately link changes in ocean chemistry to changes in ecosystem function” (McLaughlin 2015). Thus, the mean aragonite saturation state of 1.4 (1.2 ± 0.2), has been used for the assessment of omega aragonite data.

Guideline Reference:

McLaughlin, K., Weisberg, S. B., Dickson, A. G., Hofmann, G. E., Newton, J. A., Aseltine-Neilson, D., ... & Steele, B. (2015). Core principles of the California Current Acidification Network: Linking chemistry, physics, and ecological effects. Oceanography, 28(2), 160-169. doi:10.5670/oceanog.2015.39

Guideline Reference:

Bednaršek, N., R.A. Feely, E.L. Howes, B.P.V. Hunt, F. Kessouri, P. Leon, R. Lischka, A.E. Maas, K. McLaughlin, N.P. Nezlin, M. Sutula, S.B. Weisberg. 2019. Systematic Review and Meta-Analysis Toward Synthesis of Thresholds of Ocean Acidification Impacts on Calcifying Pteropods and Interactions With Warming. Frontiers in Marine Science 6:227.

Spatial Representation:

Samples were collected at Station WCOA2016_46.

Temporal Representation:

One sample was collected on 5/18/2016.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

NOAA West Coast Ocean Acidification Cruise methods, discussion, metadata, and analysis for ocean acidification sampling of the Pacific Coast in 2016. Lead Investigators: Simone R. Alin and Richard A. Feely of NOAA PMEL. https://doi.org/10.7289/v5v40shg

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308578

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2013 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2013_123.

Temporal Representation:

One sample was collected on 8/27/2011.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

NOAA West Coast Ocean Acidification Cruise methods, discussion, metadata, and analysis for ocean acidification sampling of the Pacific Coast in 2013. Lead Investigators: Simone R. Alin and Richard A. Feely of NOAA PMEL. doi.org/10.7289/v5c53hxp

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308574

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed NOAA West Coast ocean acidification data for Pacific Ocean, Monterey Bay to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded (<1.4) the impairment threshold for Omega Aragonite.

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2011 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2011_78.

Temporal Representation:

One sample was collected on 8/26/2011.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

NOAA West Coast Ocean Acidification Cruise methods, discussion, metadata, and analysis for ocean acidification sampling of the Pacific Coast in 2011. Lead Investigators: Simone R. Alin and Richard A. Feely of NOAA PMEL. doi.org/10.7289/v5jq0xz1

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308573

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2011 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2011_77.

Temporal Representation:

One sample was collected on 8/25/2011.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308579

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2013 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2013_122.

Temporal Representation:

One sample was collected on 8/27/2011.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308581

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2016 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2016_44.

Temporal Representation:

One sample was collected on 5/18/2016.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308582

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2016 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2016_45.

Temporal Representation:

One sample was collected on 5/18/2016.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 151991, Omega Aragonite	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

308577

Pollutant:

Omega Aragonite

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Aragonite saturation state (Omega Aragonite) data from the NOAA WCOA 2013 Ocean Acidification Cruise for the 2024 Integrated Report.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Marine Habitat (MAR) Beneficial use definition for Regional and Statewide use. The California Water Boards' Annual Performance Report - Fiscal Year 13/14 (CA SWRCB, 2014).

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Samples were collected at Station WCOA2013_124.

Temporal Representation:

One sample was collected on 8/27/2011.

Environmental Conditions:

QAPP Information:

The documents submitted meet the narrative and qualitative guidelines for QA submissions in Listing Policy 6.1.4.

QAPP Information Reference(s):


DECISION ID	150938	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	PAHs (Polycyclic Aromatic Hydrocarbons)
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 pollutant is being considered for placement on the CWA section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For both the commercial or recreational collection of fish, shellfish, or organisms beneficial use and the shellfish harvesting beneficial use: zero of 20 water samples (active sampler, total fraction), zero of one water samples (active sampler, dissolved fraction) and one of four water samples (total fraction) exceed the evaluation guideline. 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. 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. While one of four water samples exceeded the evaluation guidelines for both the commercial or recreational collection of fish, shellfish, or organisms beneficial use and the shellfish harvesting beneficial use, no other samples exceeded the evaluation guidelines and this does not exceed the allowable frequency listed in Table 3.1 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:

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304453

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304443

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304440

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304444

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2016-03-24 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304458

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 11 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304442

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304445

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2016-03-24 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304441

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304457

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150938, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304446

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 9 samples exceeded the water quality threshold for Total PAHs.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.0088 ug/L for PAHs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150778	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Chlordane
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	No Source Analysis Available
Expected TMDL Completion Date:	2037
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 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, nine of 20 samples (active sampler), one of three samples (water, total) and zero of two samples (water, dissolved) exceed the evaluation guideline. For the shellfish harvesting beneficial use, nine of 20 samples (active sampler), one of three samples (water, total) and zero of two samples (water, dissolved) exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA 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. Nine of 20 samples (active sampler) exceed the evaluation guidelines for the commercial or recreational collection of fish, shellfish, or organisms and shellfish harvesting beneficial uses. This exceeds the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304197

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 5 of 10 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304173

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304174

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304219

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304194

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 4 of 10 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304199

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304198

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 5 of 10 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304195

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 4 of 10 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304196

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2018-08-13

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150778, Chlordane	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304193

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 2 samples exceeded the water quality threshold for Chlordane.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000023 ug/L for chlordane to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150822	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	DDT (Dichlorodiphenyltrichloroethane)
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	No Source Analysis Available
Expected TMDL Completion Date:	2037
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Conclusion:	This pollutant is being considered for placement on the section 303(d) List under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that this decision combines the pollutant ‘DDT’ and ‘total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).’ Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, three of 20 samples (active sampler, total), zero of one sample (active sampler, dissolved), and two of four samples (water) exceed the evaluation guideline. For the shellfish harvesting beneficial use, three of 20 samples (active sampler, total), zero of one sample (active sampler, dissolved), and two of four samples (water) exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA 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. Three of 20 samples (active sampler, total) and two of four water samples exceed the evaluation guidelines for both the commercial or recreational collection of fish, shellfish, or organisms and the shellfish harvesting beneficial uses. This exceeds the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304428

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2015-10-16

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304430

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304419

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 10 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304431

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 10 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304427

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2015-10-16

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304417

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304416

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304432

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 10 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304429

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 10 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150822, DDT (Dichlorodiphenyltrichloroethane)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304418

Pollutant:

Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00017 ug/L for Total DDTs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150779	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Dieldrin
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	No Source Analysis Available
Expected TMDL Completion Date:	2037
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 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Eight lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use, four of 15 samples (active sampler), two of four samples (water), exceed the evaluation guideline. For the shellfish harvesting beneficial use, four of 15 samples (active sampler), two of four samples (water), exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA 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. Four of 15 samples (active sampler) and two of four (water) samples exceed the evaluation guidelines for the commercial or recreational collection of fish, shellfish, or organisms and shellfish harvesting beneficial uses. These exceed the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304153

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304202

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304175

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304201

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 3 of 7 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304178

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 3 of 7 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304154

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 1 of 8 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-10-06 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304204

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150779, Dieldrin	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304200

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for Dieldrin.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00004 ug/L for Dieldrin to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150788	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	PCBs (Polychlorinated biphenyls)
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	No Source Analysis Available
Expected TMDL Completion Date:	2037
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 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrices ‘active sampler’ and ‘water’ represent different sampling methods and will not be added together. Both methods represent a concentration in water. For the commercial or recreational collection of fish, shellfish, or organisms, and the shellfish harvesting beneficial uses, 20 of 20 samples (active sampler, total fraction), zero of two samples (active sampler, dissolved fraction) and four of four samples (water, total) exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA 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. 20 of 20 samples (active sampler, total fraction) and four of four samples (water, total) exceed the evaluation guidelines for the commercial or recreational collection of fish, shellfish, or organisms and shellfish harvesting beneficial uses. This exceeds the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304424

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304448

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304439

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 10 of 10 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304422

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304447

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 10 of 10 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304433

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 10 of 10 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304449

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 0 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2015-10-16 and 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304438

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 10 of 10 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2012-03-23 and 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304426

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: NoMoBay (North Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150788, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304423

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and results are as follows: 2 of 2 samples exceeded the water quality threshold for PCBs (Polychlorinated biphenyls).

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.000019 ug/L for PCBs to protect human health in marine waters.

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: SoMoBay (South Monterey Bay).

Temporal Representation:

The samples were collected between the dates of 2018-08-13 and 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network


DECISION ID	150789	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Pollutant:	Toxaphene
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	No Source Analysis Available
Expected TMDL Completion Date:	2037
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 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Ten lines of evidence are available in the administrative record to assess this pollutant. Note that the matrix ‘active sampler’ represents a concentration in water. Note that multiple samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5. For the commercial or recreational collection of fish, shellfish, or organisms beneficial use and the shellfish harvesting beneficial use: three of four samples (active sampler, total fraction) and zero of one sample (active sampler, dissolved) exceed the evaluation guideline. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the CWA 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. Three of four samples (active sampler, total fraction) exceed the evaluation guidelines for the commercial or recreational collection of fish, shellfish, or organisms and shellfish harvesting beneficial uses. This exceeds the allowable frequency listed in Table 3.1 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 be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304489

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2018-08-13 to 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304497

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2015-10-16 to 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304477

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 10 samples were collected, 9 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304488

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2018-08-13 to 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304486

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 10 samples were collected, 9 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304476

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 10 samples were collected, 9 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304478

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Dissolved

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2015-10-16 to 2016-03-24

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304474

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2018-08-13 to 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304487

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 10 samples were collected, 9 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (SoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2012-03-23 to 2018-03-03

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network

Line of Evidence (LOE) for Decision ID 150789, Toxaphene	Region 3
Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

LOE ID:

304465

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Water

Matrix:

Active Sampler

Fraction:

Total

Beneficial Use:

Shellfish Harvesting

Number of Samples:

Number of Exceedances:

Data and Information Type:

PHYSICAL/CHEMICAL MONITORING

Data Used to Assess Water Quality:

Water Board staff assessed RWB3 CCLEAN data for Pacific Ocean, Monterey Bay (excludes inner three miles nearshore) to determine beneficial use support and the results are as follows: 1 of the 1 samples exceeded the water quality threshold for Toxaphene. Although a total of 2 samples were collected, 1 of these samples were not included in the assessment because the laboratory data reporting limit(s) was above the water quality threshold and therefore the results could not be quantified with the level of certainty required by the Listing Policy Section 6.1.5.5.

Data Reference:

Tissue, Water or the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

California's Ocean Plan, Table 3 lists the 30-day average concentration of 0.00021 ug/L for toxaphene to protect human health in marine waters.

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 (NoMoBay).

Temporal Representation:

Data for this waterbody was collected over the date range 2018-08-13 to 2019-03-15

Environmental Conditions:

QAPP Information:

Applied Marine Sciences. 2019. Central Coast Long-Term Environmental Assessment Network.

QAPP Information Reference(s):

Central Coast Long-Term Environmental Assessment Network