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DECISION ID |
16615 |
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| Pollutant: |
Benzo(a)pyrene (3,4-Benzopyrene -7-d) |
| Final Listing Decision: |
List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: |
New Decision |
| Revision Status |
Revised |
| Sources: |
Atmospheric Deposition | Nonpoint Source | Surface Runoff | Urban Runoff/Storm Sewers |
| Expected TMDL Completion Date: |
2021 |
| Impairment from Pollutant or Pollution: |
Pollutant |
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| Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
Four lines of evidence are available in the administrative record to assess this pollutant.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification 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. Five of 26 samples exceed the exceeded the probable effects level for benzo[a]pyrene in marine sediment and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
4. One of one sediment samples exhibited toxicity based on the 90th percentile minimum significant difference value or were deemed moderately or highly toxic and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.
5. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are met. |
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| RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
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| SWRCB Board Decision / Staff Recommendation: |
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| USEPA Decision: |
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| LOE ID: |
28698 |
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| Pollutant: |
Sediment Toxicity |
| LOE Subgroup: |
Toxicity |
| Matrix: |
Sediment |
| Fraction: |
None |
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| Beneficial Use: |
Marine Habitat |
| Aquatic Life Use: |
Preservation of Rare & Endangered Species |
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| Number of Samples: |
1 |
| Number of Exceedances: |
1 |
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| Data and Information Type: |
Toxicity testing of sediments |
| Data Used to Assess Water Quality: |
One of one sediment samples were deemed either moderately toxic. |
| Data Reference: |
Southern California Bight 2003 Regional Marine Monitoring Survey Data |
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| Water Quality Objective/Criterion: |
The Basin Plan states that, "[a]ll waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life." |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
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Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
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| Evaluation Guideline: |
Bay et. al. classifies sediment toxicity based on the following survival percentages: Non toxic if greater than or equal to 80% survival; moderately toxic if between 50 to 80% survival; and highly toxic if less than 50% survival. |
| Guideline Reference: |
Southern California Bight 1998 Regional Monitoring Program. Volume IV. |
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| Spatial Representation: |
One station was monitored in the Los Angeles/Long Beach Inner Harbor area which include the following station 4138 (Lat: 33.7226847331, Long: -118.27960612). |
| Temporal Representation: |
Composite surface sediment samples were taken on 07/14/2003. |
| Environmental Conditions: |
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| QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Southern California Bight 2003 Regional Marine Monitoring Survey Quality Assurance Manual. |
| QAPP Information Reference(s): |
Southern California Bight 2003 Regional Marine Monitoring Survey (Bight 03) Quality Assurance Manual |
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| LOE ID: |
28697 |
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| Pollutant: |
Benzo(a)pyrene (3,4-Benzopyrene -7-d) |
| LOE Subgroup: |
Pollutant-Sediment |
| Matrix: |
Sediment |
| Fraction: |
Total |
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| Beneficial Use: |
Marine Habitat |
| Aquatic Life Use: |
Preservation of Rare & Endangered Species |
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| Number of Samples: |
1 |
| Number of Exceedances: |
1 |
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| Data and Information Type: |
Chemical monitoring of sediments |
| Data Used to Assess Water Quality: |
One out of one samples exceeded the probable effects level for benzo[a]pyrene in marine sediment. |
| Data Reference: |
Port of Los Angeles and Port of Long Beach sediment and overlaying and pore water data. |
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| Water Quality Objective/Criterion: |
The Basin Plan states that, "[s]urface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use." |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
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Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
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| Evaluation Guideline: |
Macdonald et al. lists a probable effects level of 763.22 ng/g dry weight for benzo[a]pyrene. |
| Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
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| Spatial Representation: |
One station was monitored in the Los Angeles Harbor Cabrillo Marina area. |
| Temporal Representation: |
A composite surface sediment samples were collected in fall 2006. |
| Environmental Conditions: |
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| QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Draft Sampling and Analysis Plan for Characterization of Sediment Contaminant Flux for the Inner Harbor and Outer Harbor Waterbodies to Support Sediment TMDL Implementation. |
| QAPP Information Reference(s): |
Sampling and Analysis Plan for Characterization of Sediment Contaminant Flux for the Inner Harbor and Outer Harbor Waterbodies to Support Sediment TMDL Implementation. Prepared for the Port of Los Angeles and Port of Long Beach. |
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| LOE ID: |
28696 |
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| Pollutant: |
Benzo(a)pyrene (3,4-Benzopyrene -7-d) |
| LOE Subgroup: |
Pollutant-Sediment |
| Matrix: |
Sediment |
| Fraction: |
Total |
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| Beneficial Use: |
Marine Habitat |
| Aquatic Life Use: |
Preservation of Rare & Endangered Species |
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| Number of Samples: |
25 |
| Number of Exceedances: |
4 |
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| Data and Information Type: |
Chemical monitoring of sediments |
| Data Used to Assess Water Quality: |
Four out of 25 samples exceeded the probable effects level for benzo[a]pyrene in marine sediment. |
| Data Reference: |
Southern California Bight 2003 Regional Marine Monitoring Survey Data |
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Contaminated Sediments Task Force Sediment Chemistry and Toxicity data for Los Angeles Harbor - Cabrillo Marina. 1999-2003. |
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| Water Quality Objective/Criterion: |
The Basin Plan states that, "[s]urface waters shall not contain concentrations of chemical constituents in amounts that adversely affect any designated beneficial use." |
| Objective/Criterion Reference: |
Water Quality Control Plan Los Angeles Region R4 Basin Plan |
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Basin Plan Amendments to the Water Quality Control Plan Los Angeles Region R4 Basin Plan as of 02/02/2009 |
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| Evaluation Guideline: |
Macdonald et al. lists a probable effects level of 763.22 ng/g dry weight for benzo[a]pyrene. |
| Guideline Reference: |
Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 |
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| Spatial Representation: |
A total of 25 stations were monitored in the Los Angeles/Long Beach Inner Harbor area. |
| Temporal Representation: |
Composite surface sediment samples were taken and analyzed during spring/summer/fall of 1992-98 and 2003. |
| Environmental Conditions: |
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| QAPP Information: |
Data was collected in compliance with the sampling and monitoring procedures detailed in Bay Protection Toxics Clean Program, Bight 1998, and Bight 2003 Quality Assurance Manual. |
| QAPP Information Reference(s): |
Bay Protection and Toxic Cleanup Program QAPP. (BPTCP). Sacramento, CA: State Water Resources Control Board |
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Southern California Bight 2003 Regional Marine Monitoring Survey (Bight 03) Quality Assurance Manual |
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Southern California Bight 1998 Regional Marine Monitoring Survey (Bight 98) Quality Assurance Manual |
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| LOE ID: |
153 |
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| Pollutant: |
Sediment Toxicity |
| LOE Subgroup: |
Toxicity |
| Matrix: |
Not Specified |
| Fraction: |
None |
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| Beneficial Use: |
Marine Habitat |
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| Number of Samples: |
0 |
| Number of Exceedances: |
0 |
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| Data and Information Type: |
Not Specified |
| Data Used to Assess Water Quality: |
After review of the data from the Bay Protection and Toxic Cleanup Program and the data in the Contaminated Sediments Task Force Database, no toxicity measurements have been made in any portion of the Cabrillo Marina (Anderson, et al., 1998). |
| Data Reference: |
Placeholder reference 2006 303(d) |
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| 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) |
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| Evaluation Guideline: |
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| Guideline Reference: |
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| Spatial Representation: |
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| Temporal Representation: |
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| Environmental Conditions: |
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| QAPP Information: |
QA Info Missing |
| QAPP Information Reference(s): |