Draft California 2014 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 4 - Los Angeles Region

Water Body Name:	Los Angeles Harbor - Consolidated Slip
Water Body ID:	CAB4051200020000229082107
Water Body Type:	Bay & Harbor


DECISION ID	33475	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Cadmium (sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under sections 4.6 and 4.9 of the Listing Policy. Under section 4.6 a single line of evidence is necessary to assess delisting status while under section 4.9, a minimum of two lines of evidence are needed to assess listing status. Four lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, the site has significant sediment toxicity and the pollutant concentration exceeds the sediment guideline. The benthic community is impacted. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Six of 20 samples exceeded the 4.21 ug/g PEL cadmium sediment guideline, 8 samples exhibit toxicity, and 4 sediment stations had a degraded benthic community. The four lines of evidence show that the water body segment exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. The benthic community in this water body is impacted and this pollutant is associated with this impact. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33475, Cadmium (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan (LARWQCB, 1995): Existing habitats and associated populations of wetlands fauna and flora shall be maintained by
-Maintaining substrate characteristics necessary to support flora and fauna which would be present naturally,
-Protecting food supplies for fish and wildlife,
-Protecting reproductive and nursery areas, and
-Protecting wildlife corridors.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33475, Cadmium (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan (LARWQCB, 1995): Existing habitats and associated populations of wetlands fauna and flora shall be maintained by:

-Maintaining substrate characteristics necessary to support flora and fauna which would be present naturally,
-Protecting food supplies for fish and wildlife,
-Protecting reproductive and nursery areas, and
-Protecting wildlife corridors.

Basin Plan (LARWQCB, 1995): Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Evaluation of the benthic data were completed using the approaches developed by scientists associated with the BPTCP. The relative benthic index used is a calculated value considering the total fauna, total mollusk species, crustacean species and indicator species at a site. The index ranges from 0 to 1.0. An index value of less than or equal to 0.3 is an indication that pollutants or other factors are negatively impacting the benthic community (Anderson et al., 1998).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33475, Cadmium (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

105

Pollutant:

Cadmium

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of the 41 sediment core and grab samples, 15 exceed the sediment quality guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

PEL: 4.21 ug/g (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Samples collected between 1992 and 1997.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994). Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33475, Cadmium (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

104

Pollutant:

Cadmium

LOE Subgroup:

Narrative Description Data

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The Consolidated Toxic Hot Spots Cleanup Plan describes how the Los
Angeles Contaminated Task Force will develop a plan for the cleanup of
this site. While the planning has progressed, no remediation of the site has occurred. No responsible parties have been identified.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):


DECISION ID	33508	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Chlordane (tissue & sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for delisting under sections 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status. Four lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, there is known significant toxicity and benthic impacts associated with this pollutant and the number of pollutant exceedances exceed the frequency allowed by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of not removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies, with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Thirty of 39 samples taken between 1993 and 1997 exceeded the 6ng/g Effects Range Medium sediment guideline, There is known significant sediment toxicity data and benthic community impacts associated with the water body segment, and pollutant concentrations exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33508, Chlordane (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33508, Chlordane (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

115

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of the 39 core and grab samples, 30 exceed the sediment quality guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An Effect Range Median of 6 ng/g was used (Long and Morgan, 1990).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples are spread throughout the water body.

Temporal Representation:

Samples were collected between 1993 and 1997.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33508, Chlordane (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

116

Pollutant:

Chlordane

LOE Subgroup:

Pollutant-Tissue

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

The guideline is not exceeded in any of the 12 measurements. The original listing was based on exceeding background levels rather than valid assessment guidelines (TSMP, 2002).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

OEHHA Screening Value: 2.0 ug/kg (Brodberg and Pollock, 1999).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

One station.

Temporal Representation:

Data collected in most years from 1992 through 2003.

Environmental Conditions:

QAPP Information:

State Mussel Watch Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33508, Chlordane (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	33143	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Chromium
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for delisting under sections 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status. Three lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, there is known significant toxicity and bioassessment data associated with this pollutant and the number of pollutant exceedances exceed the frequency allowed by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of not removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies, with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Twelve of 41 samples taken between 1992 and 1997 exceeded the 370 ug/g Effects Range Medium sediment guideline, There is known significant toxicity data and benthic community impacts associated with the water body segment, and pollutant concentrations exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33143, Chromium	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33143, Chromium	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33143, Chromium	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

117

Pollutant:

Chromium (total)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of the 41 core and grab samples, 12 exceeded the sediment guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An Effects Range-Median of 370 ug/g was used (Long et al., 1995).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples are spread throughout the water body.

Temporal Representation:

Samples collected between 1992 and 1997.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):


DECISION ID	33140	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Copper (sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under sections 4.6 and 4.9 of the Listing Policy. Under section 4.6 a single line of evidence is necessary to assess delisting status while under section 4.9, a minimum of two lines of evidence are needed to assess listing status. Four lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, the site has significant sediment toxicity and the pollutant concentration exceeds the sediment guideline. The benthic community is impacted. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Two of 20 samples exceeded the 270 ug/g cadmium sediment guideline, 8 samples exhibit toxicity, and 4 sediment stations had a degraded benthic community. The four lines of evidence show that the water body segment exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. The benthic community in this water body is impacted and this pollutant is associated with this impact. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33140, Copper (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

107

Pollutant:

Copper

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

163

Number of Exceedances:

103

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Data set from 2002 has 122 core samples; 1992-1997 data set has 41 samples. Of the 163 measurements, 103 exceed the sediment quality guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

ERM of 270 ug/g (Long et al., 1995).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Samples collected from 1992 through 1997 and in 2002.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33140, Copper (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

106

Pollutant:

Copper

LOE Subgroup:

Narrative Description Data

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33140, Copper (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33140, Copper (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	37822	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	DDT (tissue & sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.4 of the Listing Policy. Under section 4.4 a single line of evidence is necessary to assess delisting status. Three lines of evidence are available in the administrative record to assess this pollutant. Tissue data was used to place this water body pollutant on the 1998 list. There is also an OEHHA fish consumption advisory established in this water body segment. Under section 4.4 of the Listing Policy any water body segment where a health advisory against consumption of edible resident organisms has been removed and the chemical or biological contaminant specific evaluation guideline for tissue is no longer exceeded shall be removed from the section 303(d) list. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of not removing 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 an OEHHA fish consumption advisory has been established for this pollutant and the water segment specific data indicates that the 100 ug/kg evaluation guideline for tissue was exceeded once. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 37822, DDT (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

120

Pollutant:

DDT (Dichlorodiphenyltrichloroethane)

LOE Subgroup:

Pollutant-Tissue

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The guideline is exceeded in one of the 12 measurements. The original listing was based on exceeding background levels rather than valid assessment guidelines (SMWP, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An OEHHA screening value of 100 ug/kg was used.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

One station.

Temporal Representation:

Samples were collected from 1992 through 2003.

Environmental Conditions:

QAPP Information:

State Mussel Watch Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37822, DDT (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

119

Pollutant:

DDT (Dichlorodiphenyltrichloroethane)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

One-hundred and sixty-two samples are available.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

No sediment quality guideline is available for this pollutant that satisfies the requirements of section 6.1.3 of the Listing Policy (LARWQCB and CCC, 2004).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples are spread throughout the water body.

Temporal Representation:

The samples were collected between 1992 and 1997.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37822, DDT (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

118

Pollutant:

DDT (Dichlorodiphenyltrichloroethane)

LOE Subgroup:

Health Advisories

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

A fish consumption advisory has been established for the DDT in the Los Angeles/Long Beach Harbor area. The advisory was established by the Office of Environmental Health Hazard Assessment.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):


DECISION ID	33363	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Dieldrin
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under sections 4.6 and 4.9 of the Listing Policy. Four lines of evidence are available in the administrative record to assess this pollutant. This pollutant was placed on the 2002-303(d) list originally using a tissue guideline that is not allowed under section 6.1.3 of the Listing Policy. When evaluating this same tissue data using the appropriate OEHHA screening value, none of the 12 samples exceeded the screening value. However, based on section 4.6, the site has significant sediment toxicity and the pollutant concentration exceeds the sediment guideline. The benthic community is impacted. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Even though the tissue samples do not exceed the criteria, ten of 38 sediment samples exceeded the ERM for dieldrin in sediment, 13 out of 17 sediment samples exhibited significant toxicity, and 5 out of 11 sediment samples exhibited degraded conditions using the Relative Benthic Index (RBI). These lines of evidence show that the water body segment exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. The benthic community in this water body is impacted and this pollutant is associated with this impact. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33363, Dieldrin	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

108

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Tissue

Matrix:

Tissue

Fraction:

Total

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fish tissue analysis

Data Used to Assess Water Quality:

The guideline is not exceeded in any of the 12 measurements. The original listing was based on exceeding background levels rather than valid assessment guidelines (SMWP, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health (LARWQCB, 1995).

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

OEHHA Screening Value: 2.0 ug/kg (Brodberg and Pollock, 1999).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

One station.

Temporal Representation:

Samples collected annually from 1992 through 2003.

Environmental Conditions:

QAPP Information:

State Mussel Watch Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33363, Dieldrin	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33363, Dieldrin	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

109

Pollutant:

Dieldrin

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of 38 sediment samples (cores or grabs), 10 exceeded the sediment guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995).

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An Effects Range-Median of 8 ng/g was used (Long et al., 1995).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Thirty-eight samples were collected throughout the estuary.

Temporal Representation:

Samples collected between 1992 and 1997.

Environmental Conditions:

QAPP Information:

Contaminated Sediments Task Force Database (Stephenson et al. 1994)
Bay Protection and Toxic Cleanup Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33363, Dieldrin	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	37852	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Lead (sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for delisting under sections 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status. Three lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, there is known significant toxicity and bioassessment data associated with this pollutant and the number of pollutant exceedances exceed the frequency allowed by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of not removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies, with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Twenty-two of 41 samples taken between 1992 and 1997 and 77 of 122 samples taken in 2002 exceeded the 112.18 ug/g Effects Range Medium sediment guideline, There is known significant toxicity data and benthic community impacts associated with the water body segment, and pollutant concentrations exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 37852, Lead (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37852, Lead (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37852, Lead (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

125

Pollutant:

Lead

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

163

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Data set from 2002: 77 of 122 core and grab samples exceed the sediment guideline. Data from 1992-1997: 22 of 41 core and grab samples exceed the sediment guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A probable Effects Level of 112.18 ug/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The 163 samples are spread throughout the water body.

Temporal Representation:

Samples were collected from 1992 to 1997 and in 2002.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program (Stephenson et al., 1994) Contaminated Sediments Task Force Database.

QAPP Information Reference(s):


DECISION ID	33203	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Mercury (sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under sections 4.6 and 4.9 of the Listing Policy. Under section 4.6 a single line of evidence is necessary to assess delisting status while under section 4.9, a minimum of two lines of evidence are needed to assess listing status. Four lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, the site has significant sediment toxicity and the pollutant concentration exceeds the sediment guideline. The benthic community is impacted. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Two of 20 samples exceeded the 2.1 ug/g mercury sediment guideline, 8 samples exhibit toxicity, and 4 sediment stations had a degraded benthic community. The four lines of evidence show that the water body segment exceeds the allowable frequency listed in Table 4.1 of the Listing Policy. The benthic community in this water body is impacted and this pollutant is associated with this impact. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33203, Mercury (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

111

Pollutant:

Mercury

LOE Subgroup:

Narrative Description Data

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

The Consolidated Toxic Hot Spots Cleanup Plan describes how the Los
Angeles Contaminated Sediment Task Force will develop a plan for the cleanup of
this site. While the planning has progressed, no remediation of the site has occurred. No responsible parties have been identified.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33203, Mercury (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33203, Mercury (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

112

Pollutant:

Mercury

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

155

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Data set from 2002 has 122 samples and the data from 1992 through 1997 has 33 samples (cores and grabs). Twenty-three measures exceed the sediment guideline in 155 samples (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use. (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Sediment Quality Guideline: 2.1 ug/g (PTI Environmental Services, 1991).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Samples were collected between 1992 and 2002.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan. (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33203, Mercury (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	44944	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	PCBs (Polychlorinated biphenyls) (tissue & sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under sections 4.4, 4.5, and 4.6 of the Listing Policy. Under section 4.4 and 4.5 a single line of evidence is necessary to assess delisting status while under section 4.6, a minimum of two lines of evidence are needed to assess listing status. Five lines of evidence are available in the administrative record to assess this pollutant. There is a PCB fish consumption health advisory established for the Los Angeles/ Long Beach harbor area. Tissue data shows exceedances of the OEHHA tissue guidelines, sediment core samples taken between 1992 and 2002 exceed PCBs sediment guidelines and significant sediment toxicity has been documented in the segment. In addition, the benthic community is impacted as well. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The tissue and sediment quality guidelines used comply with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Eighty-eight of 161 samples exceeded the 400 ng/g sediment guideline, 13 of 17 samples exhibit toxicity. Twelve of 12 tissue samples exceeded the 20 ug/kg OEHHA tissue guidelines. All of these exceedances surpass the allowable frequency listed in Table 4.1 of the Listing Policy. There is a PCB fish consumption health advisory established for the Los Angeles/ Long Beach harbor area and the benthic community in this water body is impacted. 5.Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 44944, PCBs (Polychlorinated biphenyls) (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

122

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Health Advisories

Matrix:

Not Specified

Fraction:

None

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

A fish consumption advisory has been established for PCBs in the Los Angeles/Long Beach Harbor area. The advisory was established by the Office of Environmental Health Hazard Assessment.

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Temporal Representation:

Environmental Conditions:

QAPP Information:

QA Info Missing

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 44944, PCBs (Polychlorinated biphenyls) (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

123

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Tissue

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Commercial or recreational collection of fish, shellfish, or organisms

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fish tissue analysis

Data Used to Assess Water Quality:

The tissue guideline is exceeded in 12 of 12 measurements (SMWP, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An OEHHA tissue guideline of 20 ug/kg was used (Brodberg & Pollack, 1999)

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

One station.

Temporal Representation:

Samples were collected between 1992 and 2003.

Environmental Conditions:

QAPP Information:

State Mussel Watch Program.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 44944, PCBs (Polychlorinated biphenyls) (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

124

Pollutant:

PCBs (Polychlorinated biphenyls)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

161

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of the 161 core and grab samples, 88 exceed the guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 400 ng/g was used (MacDonald et al., 2000).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples are spread throughout the water body.

Temporal Representation:

Samples were collected between 1992 and 2002.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program (Stephenson et al., 1994).
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 44944, PCBs (Polychlorinated biphenyls) (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 44944, PCBs (Polychlorinated biphenyls) (tissue & sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	33157	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Toxaphene (tissue)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for removal from the section 303(d) list under section 4.5 of the Listing Policy. Under section 4.5 a single line of evidence is necessary to assess delisting status. One line of evidence is available in the administrative record to assess this pollutant. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Five of 12 samples exceeded the 30 ug/kg OEHHA tissue guideline but the number of samples is insufficient to determine with the confidence and power required by the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33157, Toxaphene (tissue)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

126

Pollutant:

Toxaphene

LOE Subgroup:

Pollutant-Tissue

Matrix:

Tissue

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Fish tissue analysis

Data Used to Assess Water Quality:

Five measurements of 12 total measurements exceed the tissue guideline (SMWP, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels that are harmful to aquatic life or human health (LARWQCB, 1995).

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An OEHHA tissue guideline of 30 ug/kg was used (Brodberg and Pollock, 1999).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

One station.

Temporal Representation:

One sample per year from 1992 through 2003.

Environmental Conditions:

QAPP Information:

State Mussel Watch Program.

QAPP Information Reference(s):


DECISION ID	33171	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Zinc (sediment)
Final Listing Decision:	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	Do Not Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for delisting under sections 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status. Three lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, there is known significant toxicity and bioassessment data associated with this pollutant and the number of pollutant exceedances exceed the frequency allowed by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies, with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. Thirty of 41 samples taken between 1992 and 1997 and 76 of 122 samples taken in 2002 exceeded the 410 ug/g Effects Range Medium sediment guideline. There is known significant toxicity data and benthic community impacts associated with the water body segment, and pollutant concentrations exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 33171, Zinc (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

127

Pollutant:

Zinc

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

163

Number of Exceedances:

106

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

From the 2002 data set, 76 of 122 core and grab samples exceed the sediment guideline. For the 1992-1997 data set, 30 of 41 core and grab samples exceed the sediment guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995).

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

An Effects Range-Median of 410 ug/g was used (Long et al., 1995).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The 163 samples are spread throughout the water body.

Temporal Representation:

Samples were collected between 1992 and 1997 and in 2002.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Cleanup Program.
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33171, Zinc (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 33171, Zinc (sediment)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	34652	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	2-Methylnaphthalene
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 34652, 2-Methylnaphthalene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 34652, 2-Methylnaphthalene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

129

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:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for 2-Methylnaphthalene. There were 12 out of 50 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 201.28 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Environmental Conditions:

QAPP Information:

Data record: 1992-2002, CSTF database

QAPP Information Reference(s):


DECISION ID	44623	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Benzo(a)pyrene (3,4-Benzopyrene -7-d)
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 44623, Benzo(a)pyrene (3,4-Benzopyrene -7-d)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 44623, Benzo(a)pyrene (3,4-Benzopyrene -7-d)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

131

Pollutant:

Benzo(a)pyrene (3,4-Benzopyrene -7-d)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for benzo[a]pyrene. There were 23 out of 57 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quailty guideline of 763.22 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Environmental Conditions:

QAPP Information:

Data record: 1992-2002, CSTF database

QAPP Information Reference(s):


DECISION ID	36808	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Chrysene (C1-C4)
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 36808, Chrysene (C1-C4)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 36808, Chrysene (C1-C4)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

132

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:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for chrysene. There were 16 out of 53 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 845.98 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Environmental Conditions:

QAPP Information:

Data record: 1992-2002, CSTF database

QAPP Information Reference(s):


DECISION ID	34031	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Phenanthrene
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 34031, Phenanthrene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

134

Pollutant:

Phenanthrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for phenanthrene. There were 13 out of 53 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 543.53 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Environmental Conditions:

QAPP Information:

Data record: 1992-2002, CSTF database

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 34031, Phenanthrene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	34636	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Pyrene
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 34636, Pyrene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

135

Pollutant:

Pyrene

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for pyrene. There were 28 out of 53 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 1,397.4 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the water body.

Temporal Representation:

Environmental Conditions:

QAPP Information:

Data record: 1992-2002, CSTF database.

QAPP Information Reference(s):


DECISION ID	44511	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Toxicity
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Revised
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 44511, Toxicity	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	33361	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Nickel
Final Listing Decision:	Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Original
Reason for Delisting:	Flaws in original listing
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This water body-pollutant combination was originally placed on the 2002-303(d) list in error. BPTCP data was used as the basis for determining whether the water body combination would be placed on the 303(d) list. However, nickel is not identified in the Consolidated Toxic Hot Spots Cleanup Plan as a chemical contributing to the creation or maintenance of the toxic hot spot within this water body because there is no available sediment quality guideline that meets the requirements of section 6.1.3 of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of removing this water segment-pollutant combination from the section 303(d) list. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. No guideline is available to evaluate this data. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

Regional Board Staff Decision Recommendation:	This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.

Line of Evidence (LOE) for Decision ID 33361, Nickel	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

110

Pollutant:

Nickel

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

A total of 26 samples are available. BPTCP sediment samples ranging in concentration from 23 ppm to 53.6 ppm. Nickel is not identified in the Consolidated Toxic Hot Spots Cleanup Plan as a chemical contributing to the creation or maintenance of the toxic hot spot (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use (LARWQCB, 1995)

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

There is no available sediment quality guideline that meets the requirements of section 6.1.3 of the Listing Policy.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout water body.

Temporal Representation:

Samples collected from 1992 through 1997.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994)
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):


DECISION ID	37793	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	PAHs (Polycyclic Aromatic Hydrocarbons)
Final Listing Decision:	Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Delist from 303(d) list (TMDL required list)(2012)
Revision Status	Original
Reason for Delisting:	Other
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	This pollutant is being considered for delisting under sections 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status. Three lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, there is known significant toxicity and bioassessment data associated with this water body segment but the number of pollutant sediment exceedances does not exceed the frequency allowed by the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of removing this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The sediment quality guideline used complies, with the requirements of section 6.1.3 of the Policy. 2. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 3. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 4. One of 41 samples taken between 1992 and 1997 exceeded the 1,800 ug/g Effects Range Medium sediment guideline. Further sampling in 2002, recorded no exceedances out of 120 samples. Although significant toxicity data and benthic community impacts are associated with this water body segment, pollutant sediment concentrations does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 5. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

Regional Board Staff Decision Recommendation:	This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.

Line of Evidence (LOE) for Decision ID 37793, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

114

Pollutant:

Estuarine Bioassessments

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Benthic macroinvertebrate surveys

Data Used to Assess Water Quality:

Eleven samples are available with 5 exhibiting degraded conditions and 6 with transitional community characteristics (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

Samples were collected in 1992 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37793, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

121

Pollutant:

PAHs (Polycyclic Aromatic Hydrocarbons)

LOE Subgroup:

Pollutant-Sediment

Matrix:

Sediment

Fraction:

None

Beneficial Use:

Marine Habitat

Number of Samples:

161

Number of Exceedances:

Data and Information Type:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Of the 120 core and grab samples from 2002, none exceeded the guideline. For the 41 samples collected between 1992 and 1997, one exceeded the sediment guideline (LARWQCB and CCC, 2004).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 1,800 ug/g was used (Fairey et al., 2001).

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

The samples were collected throughout the water body.

Temporal Representation:

The samples were collected between 1992 and 1997.

Environmental Conditions:

QAPP Information:

Bay Protection and Toxic Clean up Program.
Contaminated Sediments Task Force Database.

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 37793, PAHs (Polycyclic Aromatic Hydrocarbons)	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):


DECISION ID	35168	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Benthic Community Effects
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Original
Sources:	Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed.

Regional Board Staff Decision Recommendation:	This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.

Line of Evidence (LOE) for Decision ID 35168, Benthic Community Effects	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

3909

Pollutant:

Benthic Community Effects

LOE Subgroup:

Population/Community Degradation

Matrix:

Sediment

Fraction:

Not Recorded

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.

Data Reference:

Placeholder reference pre-2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Evaluation Guideline:

Guideline Reference:

Spatial Representation:

Unspecified

Temporal Representation:

Unspecified

Environmental Conditions:

Unspecified

QAPP Information:

Unspecified

QAPP Information Reference(s):


DECISION ID	34653	Region 4
Los Angeles Harbor - Consolidated Slip

Pollutant:	Benzo(a)anthracene
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2012)
Revision Status	Original
Sources:	Source Unknown
TMDL Name:	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)
TMDL Project Code:	416
Date TMDL Approved by USEPA:	03/23/2012
Impairment from Pollutant or Pollution:	Pollutant

Regional Board Staff Conclusion:	USEPA placed this water body-pollutant combination on the section 303(d) list using the data and information contained in the line of evidence. The original listing for PAHs has been replaced with listings for specific PAH compounds. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012.

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

Line of Evidence (LOE) for Decision ID 34653, Benzo(a)anthracene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

113

Pollutant:

Sediment Toxicity

LOE Subgroup:

Toxicity

Matrix:

Sediment

Fraction:

Total

Beneficial Use:

Marine Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Toxicity testing of sediments

Data Used to Assess Water Quality:

Thirteen of 17 samples were significantly toxic (Anderson et al., 1998).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

Significant toxicity as compared to control conditions.

Guideline Reference:

Placeholder reference 2006 303(d)

Spatial Representation:

Samples were collected throughout the estuary.

Temporal Representation:

Samples were collected in 1994 and 1996.

Environmental Conditions:

QAPP Information:

BPTCP Quality Assurance Project Plan (Stephenson et al., 1994).

QAPP Information Reference(s):

Line of Evidence (LOE) for Decision ID 34653, Benzo(a)anthracene	Region 4
Los Angeles Harbor - Consolidated Slip

LOE ID:

130

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:

Chemical monitoring of sediments

Data Used to Assess Water Quality:

Available data shows evidence of sediment toxicity and sediment chemistry exceedances for benzo[a]anthracene. There were 15 out of 53 samples exceeding the evaluation guideline (USEPA, 2007).

Data Reference:

Placeholder reference 2006 303(d)

SWAMP Data:

Non-SWAMP

Water Quality Objective/Criterion:

Basin Plan: Surface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use.

Objective/Criterion Reference:

Placeholder reference 2006 303(d)

Evaluation Guideline:

A sediment quality guideline of 692.53 ng/g was used (MacDonald et al., 1996).

Guideline Reference:

Placeholder reference 2006 303(d)