Final California 2014 and 2016 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 4 - Los Angeles Region

Water Body Name: Los Angeles Harbor - Fish Harbor
Water Body ID: CAB4051800020000229113919
Water Body Type: Bay & Harbor
 
DECISION ID
39670
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
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 Conclusion: This pollutant is being considered for removal from the section 303(d) list under sections 4.4 and 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess delisting status.

Three lines of evidence are available in the administrative record to assess this pollutant. There is an OEHHA fish consumption advisory in place for the Los Angeles/Long Beach Harbor area. There is no sediment quality guideline available to assess exceedances of DDT in sediment that complies with the requirements of section 6.1.3 of the Listing Policy but sediment toxicity has been observed. 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 or the chemical or biological contaminant-specific evaluation guideline for tissue is no longer exceeded shall be removed from the section 303(d) list. In this case, there are no current tissue data available for evaluation, however, fish tissue samples from nearby areas of the harbor (outer harbor) exceed the fish tissue guideline for human consumption.

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, although there are no current tissue data available for evaluation, an OEHHA fish consumption advisory remains in place for this pollutant and fish tissue samples from nearby areas of the harbor (outer harbor) exceed the fish tissue guideline for human consumption. 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 39670, DDT (Dichlorodiphenyltrichloroethane)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 198
 
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: 0
Number of Exceedances: 0
 
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):
 
Line of Evidence (LOE) for Decision ID 39670, DDT (Dichlorodiphenyltrichloroethane)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 199
 
Pollutant: DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Twelve core and grab samples are available (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: No sediment quality guideline is available that complies with the requirements of section 6.1.3 of the Listing Policy.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples are spread throughout the water body.
Temporal Representation: The samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 39670, DDT (Dichlorodiphenyltrichloroethane)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
37480
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
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 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.

Two lines of evidence are available in the administrative record to assess this pollutant. Based on section 4.6, a sufficient number of samples exceed the 1,442 ng/g low molecular and the 9,600 ng/g high molecular weight PAH sediment quality guidelines. The number of pollutant exceedances exceed the frequency allowed by the Listing Policy. Also, the water body segment exhibited sediment toxicity.

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. Five of 12 samples exceeded the 1,442 ng/g low molecular weight and 6 of 12 exceeded 9,600 ng/g high molecular weight PAH sediment quality guideline. The pollutant concentrations exceed the allowable frequency listed in Table 4.1 of the Listing Policy. Sediment toxicity is also observed.
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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 37480, PAHs (Polycyclic Aromatic Hydrocarbons)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 202
 
Pollutant: PAHs (Polycyclic Aromatic Hydrocarbons)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 11
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples: none exceeded the total PAH sediment quality guideline, 5 measurements exceeded the low molecular weight PAH guideline, and 6 measurements exceeded the high molecular weight PAH 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: Sediment quality guidelines were used as follows: 1,800 ug/g for total PAHs (Fairey et al., 2001), 1,442 ng/g for low molecular weight PAHs (MacDonald et al., 1996), and 9,600 ng/g for high molecular weight PAHs (Long et al., 1995).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 37480, PAHs (Polycyclic Aromatic Hydrocarbons)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
33883
Region 4     
Los Angeles Harbor - Fish Harbor
 
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 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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Also, sediment toxicity in a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Eight of 12 samples exceeded the 692.53 ng/l sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also, three of 7 sediment toxicity samples were considered toxic. Section 3.6 of the Listing Policy requires that the pollutant in sediment be linked to observed significant toxicity before placing a water segment on the 303(d) list. The Listing Policy requires evidence of observed toxicity to establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4. Pursuant to section 3.11 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33883, Benzo(a)anthracene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33883, Benzo(a)anthracene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 204
 
Pollutant: Benzo(a)anthracene
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 8
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples, 8 measurements exceeded the sediment quality guideline (CSTF, 2002).
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)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33589
Region 4     
Los Angeles Harbor - Fish Harbor
 
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 Conclusion: The USEPA final decision for the 2006 303(d) list was to list this water body segment for Benzo(a)pyrene (PAHs).

Two lines of evidence were used assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline.

Eleven of 13 samples exceeded the sediment quality guideline and 3 of 7 sediment toxicity samples were considered toxic.
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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33589, Benzo(a)pyrene (3,4-Benzopyrene -7-d)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33589, Benzo(a)pyrene (3,4-Benzopyrene -7-d)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 205
 
Pollutant: Benzo(a)pyrene (3,4-Benzopyrene -7-d)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 13
Number of Exceedances: 11
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 13 sediment core and grab samples, 11 measurements exceeded the sediment quality guideline (CSTF, 2003) (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: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33753
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Chlordane
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1.The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2.The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3.Four of 6 samples exceeded the 6 ng/l Chlordane ERM sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also, 3 of 7 sediment toxicity samples were considered toxic. The Listing Policy requires evidence of observed toxicity to establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4.Pursuant to section 3.11 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33753, Chlordane
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33753, Chlordane
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 196
 
Pollutant: Chlordane
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 6
Number of Exceedances: 4
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the six sediment core samples, 4 exceeded sediment quality guideline (CSTF. 2002).
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: An Effects Range-Median of 6 ng/g was used (Long and Morgan, 1990).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1999.
Environmental Conditions:
QAPP Information: Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33708
Region 4     
Los Angeles Harbor - Fish Harbor
 
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Nine of 12 samples exceeded the 845.98 ng/l Chrysene (C1-C4) sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also 3 of 7 sediment toxicity samples were considered toxic. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33708, Chrysene (C1-C4)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33708, Chrysene (C1-C4)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 206
 
Pollutant: Chrysene (C1-C4)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 9
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples, 9 measurements exceeded the sediment quality guideline (CSTF, 2002).
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: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
34044
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Copper
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Ten of 10 samples exceeded the 270 ug/g copper ERM sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Three of 7 sediment toxicity samples were considered toxic.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 34044, Copper
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 197
 
Pollutant: Copper
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 10
Number of Exceedances: 10
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 10 sediment core and grab samples, all measurements exceeded sediment quality guideline (CSTF, 2002).
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: An Effects Range-Median of 270 ug/g was used (Long et al., 1995).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 34044, Copper
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
33774
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Dibenz[a,h]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 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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Four of 12 samples exceeded the 260 ng/g Dibenz[a,h]anthracene sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also, 3 of 7 sediment toxicity samples were considered toxic. 4. Pursuant to section 3.11 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33774, Dibenz[a,h]anthracene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 207
 
Pollutant: Dibenz[a,h]anthracene
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 4
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples, 4 measurements exceeded the sediment quality guideline (CSTF, 2002).
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 260 ng/g was used (Long et al., 1995).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33774, Dibenz[a,h]anthracene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
33368
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Lead
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: 03/23/2016
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is significant and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Eight of 10 samples exceeded the 112.18 ug/g Lead sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Additionally, three of seven samples were toxic. Section 3.6 of the Listing Policy requires that the pollutant in sediment be linked to observed significant toxicity before placing a water segment on the 303(d) list. The Listing Policy requires evidence of observed toxicity to establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33368, Lead
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33368, Lead
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 210
 
Pollutant: Lead
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 10
Number of Exceedances: 8
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 10 sediment core and grab samples, 8 measurements exceeded the sediment quality guideline (CSTF, 2002).
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 112.18 ug/g was used (MacDonald et al., 1996).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33754
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Mercury
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. There is significant sediment toxicity and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Seven of 10 samples exceeded the 2.1 ug/g mercury sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Additionally, three of 7 sediment toxicity samples were considered toxic. Section 3.6 of the Listing Policy requires that the pollutant in sediment be linked to observed toxicity before placing a water segment on the 303(d) list. The Listing Policy requires evidence of observed toxicity to establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33754, Mercury
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 200
 
Pollutant: Mercury
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 10
Number of Exceedances: 7
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 10 sediment core and grab samples, 7 exceeded sediment quality guideline (CSTF, 2002).
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 2.1 ug/g was used (PTI Environmental Services, 1991).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33754, Mercury
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
33457
Region 4     
Los Angeles Harbor - Fish Harbor
 
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Six of 12 samples exceeded the 543.53 ng/g Phenanthrene sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also, 3 of 7 sediment toxicity samples were considered toxic.
4. Pursuant to section 3.11 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33457, Phenanthrene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33457, Phenanthrene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 208
 
Pollutant: Phenanthrene
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 6
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples, 6 measurements exceeded the sediment quality guideline (CSTF, 2002).
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: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33155
Region 4     
Los Angeles Harbor - Fish Harbor
 
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is observed and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Ten of 12 samples exceeded the 1,397.4 ng/g Pyrene sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Also, 3 of 7 sediment toxicity samples were considered toxic.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33155, Pyrene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33155, Pyrene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 209
 
Pollutant: Pyrene
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 12
Number of Exceedances: 10
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 12 sediment core and grab samples, 10 measurements exceeded the sediment quality guideline (CSTF, 2002).
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: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33757
Region 4     
Los Angeles Harbor - Fish Harbor
 
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: 03/23/2013
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 a water segment can be placed on the 303(d) list if the water segment exhibits significant toxicity and the observed toxicity is associated with a pollutant or pollutants. The water body segment may also be listed for toxicity alone.

One line of evidence is available in the administrative record to assess this pollutant. A sufficient number of samples exceed the water quality objective.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Three of 7 samples exhibited significant amphipod toxicity and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.


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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33757, Toxicity
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
33146
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Zinc
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 Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Sediment toxicity is significant and a sufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Ten of 10 samples exceeded the 410 ug/g sediment quality guideline and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. Additionally, three of 7 sediment toxicity samples were considered toxic. Section 3.6 of the Listing Policy requires that the pollutant in sediment be linked to observed significant toxicity before placing a water segment on the 303(d) list. The Listing Policy requires evidence of observed toxicity to establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33146, Zinc
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 215
 
Pollutant: Zinc
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 10
Number of Exceedances: 10
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 10 sediment core and grab samples, all of the measurements exceeded the sediment quality guideline (CSTF, 2002).
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 410 ug/g was used (Long et al., 1995).
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33146, Zinc
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
 
DECISION ID
44513
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: PCBs (Polychlorinated biphenyls)
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 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 Conclusion: This pollutant is being considered for removal from the section 303(d) list under sections 4.4 and 4.6 of the Listing Policy. Under section 4.6, two lines of evidence are necessary to assess delisting status.

Three lines of evidence are available in the administrative record to assess this pollutant. There is an OEHHA fish consumption advisory in place for the Los Angeles/Long Beach Harbor area. There is no new information indicating that this health advisory has been removed or not applicable to this specific water segment. Although there are no current tissue data for evaluation, a sufficient number of samples exceeded sediment quality guidelines and sediment toxicity has been observed in this water body.

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 is in place for this pollutant, six of 13 sediment samples exceeded the 400 ug/l PCB sediment quality evaluation guideline, and sediment toxicity is observed. 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 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 44513, PCBs (Polychlorinated biphenyls)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44513, PCBs (Polychlorinated biphenyls)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 211
 
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: 0
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: A fish consumption advisory has been established for the PCB 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 44513, PCBs (Polychlorinated biphenyls)
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 212
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 13
Number of Exceedances: 6
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 13 samples available, 6 measurements exceeded 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.
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: The samples were collected in 1992, 1995, and 1999. All of the exceedances occurred in 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
33702
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: 2-Methylnaphthalene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2012)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 two lines of evidence are necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Although sediment toxicity was observed, an insufficient number of samples exceeded the sediment quality guideline. Under section 3.6 documented pollutant exceedances in sediment must be associated with observed toxicity before listing can occur.

Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1.The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2.The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3.Even though sediment toxicity was observed, only one of 9 samples exceeded the 201.28 ng/l sediment quality guideline for 2-Methylnaphtalene in sediment. These data does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. Section 3.6 of the Listing Policy requires that the pollutant concentration in sediment be linked to observed toxicity before placing a water segment on the 303(d) list. Evidence of observed toxicity helps establish a connection between the pollutant in the sediment and toxicity impacts to the aquatic habitat in the water body segment.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 33702, 2-Methylnaphthalene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 33702, 2-Methylnaphthalene
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 203
 
Pollutant: 2-Methylnaphthalene
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 9
Number of Exceedances: 1
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Of the 9 sediment core and grab samples, 1 measurement exceeded the sediment quality guideline (CSTF, 2002).
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 spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
 
DECISION ID
36714
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Benthic Community Effects
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2012)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.9 of the Listing Policy. Under section 3.9 a water segment can be placed on the 303(d) list if the water segment exhibits significant degradation in biological populations and/or communities as compared to reference sites and is associated with water or sediment pollutant concentrations.

One line of evidence is available in the administrative record to assess this pollutant. No bioassessment measurement was considered degraded.

Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1.The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2.The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3.One of 5 samples taken exhibited significant degradation and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating.
 
Regional Board 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 36714, Benthic Community Effects
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 214
 
Pollutant: Estuarine Bioassessments
LOE Subgroup: Population/Community Degradation
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 5
Number of Exceedances: 1
 
Data and Information Type: Benthic macroinvertebrate surveys
Data Used to Assess Water Quality: Of the 5 samples collected, no measurements were considered degraded (BPTCP, 1998).
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: The relative benthic index (RBI) is based on toxicology and natural history considerations concerning responses of marine benthic communities to anthropogenic and natural disturbances. The community patterns used in the index include number of species; and the number of individuals of crustaceans, the number of individuals of selected species that are indicators of relatively disturbed benthic habitats, and the number of individuals of selected species that are indicators of relatively undisturbed benthic habitats. The RBI ranges from 0 to 1.0. Values less than 0.3 are considered degraded and values greater than 0.6 are not degraded.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Three samples were collected at the entrance to Fish Harbor.
Temporal Representation: The samples were collected in 1992.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
QAPP Information Reference(s):
 
 
DECISION ID
44512
Region 4     
Los Angeles Harbor - Fish Harbor
 
Pollutant: Nickel
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2012)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 At least two lines of evidence are necessary to assess listing status. One line of evidence documents the presence of the pollutant. The other line of evidence documents non-significant sediment toxicity. Both lines of evidence must establish a connection between the water or sediment concentrations of pollutant(s) and toxicity.

In this case, there is no sediment guideline for this pollutant that meets the requirements of section 6.1.3 of the Listing Policy. Ten samples were taken in 1992 and 1999.

Based on the readily available data and information, the weight of evidence indicates that there is insufficient information to justify placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that there is no sediment guideline for this pollutant that meets the requirements of section 6.1.3 of the Listing Policy. It is not possible to determine any exceedances and there is no significant toxicity associated with this water body segment. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: 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.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 44512, Nickel
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 201
 
Pollutant: Nickel
LOE Subgroup: Pollutant-Sediment
Matrix: Sediment
Fraction: None
 
Beneficial Use: Marine Habitat
 
Number of Samples: 0
Number of Exceedances: 0
 
Data and Information Type: Chemical monitoring of sediments
Data Used to Assess Water Quality: Ten 10 sediment core and grab samples are available (CSTF, 2002).
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: No sediment quality guideline is available that complies with the requirements of section 6.1.3 of the Listing Policy.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: The samples were spread throughout the water body.
Temporal Representation: Samples were collected in 1992 and 1999.
Environmental Conditions:
QAPP Information: Bay Protection and Toxic Cleanup Program QAPP.
Quality assurance for other samples presented in the Contaminated Sediments Task Force Database.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 44512, Nickel
Region 4     
Los Angeles Harbor - Fish Harbor
 
LOE ID: 213
 
Pollutant: Sediment Toxicity
LOE Subgroup: Toxicity
Matrix: Sediment
Fraction: Total
 
Beneficial Use: Marine Habitat
 
Number of Samples: 7
Number of Exceedances: 3
 
Data and Information Type: Toxicity testing of sediments
Data Used to Assess Water Quality: Overall, three of seven samples were toxic. This total was created from two different sediment studies within Fish Harbor. In one study, three of six samples were toxic (BPTCP). In the other, none of one sample was toxic (Bight, 1998) (LARWQCB & 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: Samples were considered toxic if (1) there was a significant difference in mean organism response between the sample and the control, and (2) the mean organism response in the test, as a percent of the control, was less than the threshold based on the 90th percentile minimum significant difference value.
Guideline Reference: Placeholder reference 2006 303(d)
 
Spatial Representation: Seven sites were sampled throughout LA/LB Fish Harbor.
Temporal Representation: Samples were collected in 1992, 1997 and 1998.
Environmental Conditions:
QAPP Information: Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP).
QAPP Information Reference(s):