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

Supporting Information

Regional Board 3 - Central Coast Region

Water Body Name:	Pacific Ocean, Pt. Arguello to Coal Oil Pt.
Water Body ID:	CAO3151006020200702054742
Water Body Type:	Ocean


DECISION ID	115340	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	2-Methylnaphthalene
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 Clean Water Act (CWA) section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use and use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use and 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 115340, 2-Methylnaphthalene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155043

Pollutant:

2-Methylnaphthalene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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 Southern California Bight Project 2013 data for Pacific Ocean, Pt. Arguello to Coal Oil Pt. to determine beneficial use support and the results are as follows: 0 of the 1 samples exceeded the evaluation guideline for Methylnaphthalene, 2- .

Data Reference:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries).

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for 2-methyl-naphthalene from MacDonald et al. 1996, which states that the probable effect level for 2-methyl-naphthalene is 201.28 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115340, 2-Methylnaphthalene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155042

Pollutant:

2-Methylnaphthalene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for 2-methyl-naphthalene from MacDonald et al. 1996, which states that the probable effect level for 2-methyl-naphthalene is 201.28 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115326	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Antimony
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 sections 3.1 and 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. Two lines of evidence are available in the administrative record to assess this pollutant. Zero of the 2 samples exceed the evaluation guideline used to interpret the narrative water quality objective for aquatic life protection. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported using table 3.1. Therefore, the use support rating is set to 'insufficient information'. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 2 samples exceed the evaluation guideline 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 115326, Antimony	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151270

Pollutant:

Antimony

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The eavaluation gudieline used in this assessment comes from Long and Morgan 1990, and is 25 ug/g dw = Dry Weight

Guideline Reference:

The potential for biological effects of sediment-sorbed contaminants tested in the National Status of Trends Program. NOAA Technical Memorandum NOS OMA 52. Seattle, WA: National Oceanic and Atmospheric Administration

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115326, Antimony	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151268

Pollutant:

Antimony

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The eavaluation gudieline used in this assessment comes from Long and Morgan 1990, and is 25 ug/g dw = Dry Weight

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115327	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

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

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 115327, Arsenic	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151277

Pollutant:

Arsenic

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995 and is the effects range median (ERM) value of 70 ug/g.

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115327, Arsenic	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151148

Pollutant:

Arsenic

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995 and is the effects range median (ERM) value of 70 ug/g.

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115329	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Benzo(a)anthracene
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115329, Benzo(a)anthracene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151137

Pollutant:

Benzo(a)anthracene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Benz[a]anthrazene from MacDonald et al. 1996, which states that the probable effect level for Benz[a]anthrazene is 692.53 ug/Kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115329, Benzo(a)anthracene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151361

Pollutant:

Benzo(a)anthracene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Benz[a]anthrazene from MacDonald et al. 1996, which states that the probable effect level for Benz[a]anthrazene is 692.53 ug/Kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115328	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Benzo(a)pyrene
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115328, Benzo(a)pyrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151237

Pollutant:

Benzo(a)pyrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Benzo[a]pyrene from MacDonald et al. 1996, which states that the probable effect level for Benzo[a]pyrene is 763.22 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115328, Benzo(a)pyrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151241

Pollutant:

Benzo(a)pyrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Benzo[a]pyrene from MacDonald et al. 1996, which states that the probable effect level for Benzo[a]pyrene is 763.22 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115330	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

Regional Board Conclusion:	Insufficient information is available to determine beneficial use support for this waterbody-pollutant combination with the statistical power and confidence required by the Listing Policy. A minimum of 16 samples is needed to determine if a beneficial use is supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported using table 3.1. Therefore, the use support ratings are set to 'insufficient information'. Beneficial use support will be reassessed in a future cycle, if more data are available.

Regional Board Decision Recommendation:	After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.

State Board Review of Regional Board Conclusion and Recommendation:

State Board Decision Recommendation:

Line of Evidence (LOE) for Decision ID 115330, Cadmium	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151469

Pollutant:

Cadmium

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Cadmium from MacDonald et al. 1996, which states that the probable effect level for Cadmium is 4.21 ug/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115330, Cadmium	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151674

Pollutant:

Cadmium

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Cadmium from MacDonald et al. 1996, which states that the probable effect level for Cadmium is 4.21 ug/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115331	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Chlordane
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115331, Chlordane	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151986

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes from Long and Morgan, 1990, and is the Effects Range Median (ERM) value of 6 ng/g DW

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115331, Chlordane	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

152025

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes from Long and Morgan, 1990, and is the Effects Range Median (ERM) value of 6 ng/g DW

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115342	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Chromium
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 Clean Water Act (CWA) section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the warm freshwater habitat beneficial use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of zero of two samples exceed the evaluation guideline for the warm freshwater 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 115342, Chromium	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151855

Pollutant:

Chromium

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the effects range median (ERM) value of 370 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115342, Chromium	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151794

Pollutant:

Chromium

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the effects range median (ERM) value of 370 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115332	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Chrysene (C1-C4)
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115332, Chrysene (C1-C4)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

151779

Pollutant:

Chrysene (C1-C4)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Chrysene from MacDonald et al. 1996, which states that the probable effect level for Chrysene is 845.98 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115332, Chrysene (C1-C4)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

152208

Pollutant:

Chrysene (C1-C4)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Chrysene from MacDonald et al. 1996, which states that the probable effect level for Chrysene is 845.98 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115333	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

Regional Board Conclusion:	This pollutant is being considered for placement on the Clean Water Act (CWA) section 303(d) List under section 4.1 and 4.6 of the Listing Policy. Under section 4.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in removal of the pollutant from the Section 303(d) List. A total of two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use and use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use and use. This does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are 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 115333, Copper	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

152172

Pollutant:

Copper

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the effects range median (ERM) value of 270 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115333, Copper	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

152090

Pollutant:

Copper

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the effects range median (ERM) value of 270 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115334	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Dibenz[a,h]anthracene
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115334, Dibenz[a,h]anthracene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

153555

Pollutant:

Dibenz[a,h]anthracene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the Effects Range Median (ERM) value and is 260 PPB (ng/g) dw = Dry Weight

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115334, Dibenz[a,h]anthracene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

153571

Pollutant:

Dibenz[a,h]anthracene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, is the Effects Range Median (ERM) value and is 260 PPB (ng/g) dw = Dry Weight

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115335	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

Regional Board Conclusion:	This pollutant is being considered for placement on the CWA section 303(d) List under sections 3.1 and 3.6 of the Listing Policy. Under section 3.1 at least one line of evidence is necessary to assess listing status, but under section 3.6 at least two lines of evidence are necessary to assess listing status and the pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the section 303(d) List. Two lines of evidence are available in the administrative record to assess this pollutant. Zero of two sediment samples exceed the evaluation guideline used to interpret the narrative water quality objective for aquatic life protection. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported using table 3.1. Therefore, the use support rating is set to 'insufficient information'. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115335, Lead	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154582

Pollutant:

Lead

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Lead from MacDonald et al. 1996, which states that the probable effect level for Lead is 112.18 mg/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115335, Lead	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154708

Pollutant:

Lead

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Lead from MacDonald et al. 1996, which states that the probable effect level for Lead is 112.18 mg/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	130750	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Mercury
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 section 303(d) List under section 3.1 and section 3.6 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the 303(d) List. Two lines of evidence are available in the administrative record to assess this pollutant. Two LOEs summarize sediment samples. Zero of two sediment samples exceed the mercury evaluation guideline (MacDonald et al., 2000a) set to protect for marine habitat beneficial uses. 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. 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 sediment 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. 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 130750, Mercury	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154631

Pollutant:

Mercury

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes form PTI Environmental Services, 1991, and is 2.1 ug/g.

Guideline Reference:

An evaluation of methods for calculating mean sediment quality guideline quotients as indicators of contamination and acute toxicity to amphipods by chemical mixtures. Environmental Toxicology and Chemistry. 20(10): 2276-2286

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130750, Mercury	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154587

Pollutant:

Mercury

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes form PTI Environmental Services, 1991, and is 2.1 ug/g.

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	130680	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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 section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the 303(d) List. Six lines of evidence are available in the administrative record to assess this pollutant. Six LOEs summarize sediment samples. Zero of six sediment samples exceed the total PAHs evaluation guideline (Long et al., 1995) set to protect for the marine habitat beneficial use. 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. 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 sediment samples exceeded the evaluation guidelines set to protect marine habitat beneficial uses 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 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154661

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes from Long et al., 1995, and is 9600 ng/g dw = Dry Weight

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154924

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

In marine and estuarine sediments the sediment quality guideline (predictive of sediment toxicity for sediment-dwelling organisms) for Total PAHs is 1800 ug/g dw = Dry Weight (Fairey et al., 2001).

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155193

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

In marine and estuarine sediments the sediment quality guideline (predictive of sediment toxicity for sediment-dwelling organisms) for Total PAHs is 1800 ug/g dw = Dry Weight (Fairey et al., 2001).

Guideline Reference:

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154793

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Low molecular weight from MacDonald et al. 1996, which states that the probable effect level for Low molecular weight is 1442 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154641

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline used in this assessment comes from Long et al., 1995, and is 9600 ng/g dw = Dry Weight

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 130680, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154794

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Low molecular weight from MacDonald et al. 1996, which states that the probable effect level for Low molecular weight is 1442 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115337	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	PCBs (Polychlorinated biphenyls)
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 section 303(d) List under section 3.1 and section 3.6 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the 303(d) List. Two lines of evidence are available in the administrative record to assess this pollutant. Zero of two sediment samples exceed the PCBs evaluation guideline set to protect for aquatic life beneficial uses. 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. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 2 sediment 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 115337, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

154972

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from MacDonald et al., 2000b is the effects range median (ERM) value of 400 ng/g

Guideline Reference:

Development and evaluation of consensus-based sediment effect concentrations for polychlorinated biphenyls. Environmental Toxicology and Chemistry. 19(5): 1403-1413

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115337, PCBs (Polychlorinated biphenyls)	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155040

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from MacDonald et al., 2000b is the effects range median (ERM) value of 400 ng/g

Guideline Reference:

Development and evaluation of consensus-based sediment effect concentrations for polychlorinated biphenyls. Environmental Toxicology and Chemistry. 19(5): 1403-1413

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115336	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Phenanthrene
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115336, Phenanthrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155279

Pollutant:

Phenanthrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Phenanthrene from MacDonald et al. 1996, which states that the probable effect level for Phenanthrene is 543.53 ng/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115336, Phenanthrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155531

Pollutant:

Phenanthrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Phenanthrene from MacDonald et al. 1996, which states that the probable effect level for Phenanthrene is 543.53 ng/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115338	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

Pollutant:	Pyrene
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 Clean Water Act (CWA) section 303(d) List under section 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence (LOEs) are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. This sample size is insufficient to determine an applicable beneficial use support rating with the power and confidence of the Listing Policy. In accordance with Table 3.1 of the Listing Policy, a minimum of 16 samples is needed to determine if a beneficial use is fully supported and a minimum of two exceedances is needed to determine if beneficial uses are not supported. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the CWA section 303(d) List in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Zero of the 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 115338, Pyrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155356

Pollutant:

Pyrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Pyrene from MacDonald et al. 1996, which states that the probable effect level for Pyrene is 1397.4 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115338, Pyrene	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155357

Pollutant:

Pyrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Pyrene from MacDonald et al. 1996, which states that the probable effect level for Pyrene is 1397.4 ug/kg. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115339	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

Regional Board Conclusion:	This pollutant is being considered for placement on the Clean Water Act (CWA) section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of zero of two samples exceed the evaluation guideline 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 115339, Silver	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155580

Pollutant:

Silver

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Silver from MacDonald et al. 1996, which states that the probable effect level for Silver is 1.77 ug/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115339, Silver	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155596

Pollutant:

Silver

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The evaluation guideline for Silver from MacDonald et al. 1996, which states that the probable effect level for Silver is 1.77 ug/g. (dw = Dry Weight)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual


DECISION ID	115341	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

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

Regional Board Conclusion:	This pollutant is being considered for placement on the Clean Water Act (CWA) section 303(d) List under section 3.1 and 3.6 of the Listing Policy. Under section 3.6 at least two lines of evidence are necessary to assess listing status for pollutants in sediment. The pollutant concentration in sediment must be associated with toxicity to result in addition of the pollutant to the Section 303(d) List. A total of two lines of evidence are available in the administrative record to assess this pollutant. A total of zero of two samples exceed the evaluation guideline for the marine habitat beneficial use. These data are insufficient to determine the applicable beneficial use support rating with the power and confidence required by the Listing Policy. After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. A total of zero of two samples exceed the evaluation guideline 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 115341, Zinc	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

155955

Pollutant:

Zinc

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, and is the effects range median value of 410 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9482.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual

Line of Evidence (LOE) for Decision ID 115341, Zinc	Region 3
Pacific Ocean, Pt. Arguello to Coal Oil Pt.

LOE ID:

156030

Pollutant:

Zinc

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

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:

Sediment data for the 2020/2022 integrated report in Region 3.

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Water Quality Control Plan for the Central Coastal Basin

Evaluation Guideline:

The value used in this assessment comes from Long et al., 1995, and is the effects range median value of 410 PPM (ug/g)

Guideline Reference:

Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278

Spatial Representation:

Data were collected from 1 station(s). Station Code(s): B13-9474.

Temporal Representation:

Data for this waterbody were collected over the date range 2013-09-23 to 2013-09-23

Environmental Conditions:

QAPP Information:

Bight Coastal Ecology Committee. 2013. Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual.

QAPP Information Reference(s):

Southern California Bight 2013 Regional Marine Monitoring Survey (Bight 13) Quality Assurance Manual