| Water Body Name: | Los Angeles/Long Beach Inner Harbor |
| Water Body ID: | CAB4051200020050207122133 |
| Water Body Type: | Bay & Harbor |
DECISION ID |
34207 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Beach Closures |
| Final Listing Decision: | Delist from 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 |
| Reason for Delisting: | Flaws in original listing |
| TMDL Name: | Los Angeles Harbor Beaches - Beach Closures (72) |
| TMDL Project Code: | 230 |
| Date TMDL Approved by USEPA: | 03/10/2005 |
| Impairment from Pollutant or Pollution: | Pollution |
| Regional Board Staff Conclusion: | One line of evidence is available in the administrative record to assess this pollutant. Based on the applicable factor, a TMDL has been developed and approved by USEPA and an approved implementation plan is expected to result in attainment of the standard. It is not known if the beach closure information is backed by coliform data. Beach closure information should not be placed on the section 303(d) list because it is not a pollutant or toxicity (section 2 of the Listing Policy).
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of removing these listing from the 303(d) list because beach closures are not pollutants. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the section 303(d) list because the original basis for listing was flawed. |
|
|||||
| LOE ID: | 3920 | ||||
| Pollutant: | Beach Closures | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Not Recorded | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
| Data Reference: | Placeholder reference pre-2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Unspecified | ||||
| Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) | ||||
| Evaluation Guideline: | Unspecified | ||||
| Guideline Reference: | Placeholder reference pre-2006 303(d) | ||||
| Spatial Representation: | Unspecified | ||||
| Temporal Representation: | Unspecified | ||||
| Environmental Conditions: | Unspecified | ||||
| QAPP Information: | Unspecified | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
33551 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Copper |
| Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
| Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2012) |
| Revision Status | Revised |
| Sources: | Source Unknown |
| TMDL Name: | Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) |
| TMDL Project Code: | 416 |
| Date TMDL Approved by USEPA: | 03/23/2012 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | This pollutant is being considered for removal from the section 303(d) list under section 4.1 of the Listing Policy. Under section 4.1 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 significant sediment toxicity has been documented within the water body segment, copper does not appear to be the cause. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification to remove this water segment-pollutant combination off the section 303(d) list in the Water Quality Limited Segments category. However, the USEPA final decision was to not delist this water body-pollutant combination from the section 303(d) list for 2006 based on the information contained in the lines of evidence. 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. Eighteen of 627 sediment samples exceeded the sediment quality guideline and this does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 159 | ||||
| Pollutant: | Copper | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 627 | ||||
| Number of Exceedances: | 18 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Of the 627 core and grab samples available, 18 exceed the sediment quality guideline (Los Angeles RWQCB & CCC, 2004) (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: | 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 are spread through out the water segment. | ||||
| Temporal Representation: | The samples were collected between 1992 and 2001. | ||||
| 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): | |||||
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
33147 |
Region 4 |
Los Angeles/Long Beach Inner 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 Staff Conclusion: | This pollutant is being considered for removal from the section 303(d) list under section 4.1, 4.4, 4.5, and 4.11 of the Listing Policy.
Four lines of evidence are available in the administrative record to assess this pollutant. Seven hundred and fourteen (714) sediment samples were taken between 1992 and 2001, DDT was detected in the majority of samples. A sediment quality guideline for DDT is not available that satisfies the conditions of section 6.1.3 of the Listing Policy. An OEHHA fish consumption advisory has been established in this water body segment. There were 463 tissue samples available and none of these exceeded the NAS guidelines (or the OEHHA Screening Value). However, organisms used for these tissue samples are benthic infauna (including worms and bivalves) not typically consumed by humans. These samples are not appropriate to use for determining whether or not DDT is causing a water quality impact. Fish tissue samples from nearby areas of the harbor (outer harbor) still exceed the fish tissue guideline for human consumption. Additionally, sediment toxicity has been observed. 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 even though none of the 463 benthic infauna tissue samples exceed the NAS guideline, fish tissue data available from a nearby area in the harbor shows exceedances of the human consumption guideline and an OEHHA fish consumption advisory has been established for this pollutant in this water body. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are being met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 162 | ||||
| Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
| Number of Samples: | 463 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Out of 463 samples, none exceeded the NAS Guidelines. These are organisms which are not typically consumed by humans, however if they were and were subject to the more restrictive Human Health criteria (0.1 ug/g) none of these samples would exceed (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health. | ||||
| Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | 1 ug/g Wildlife Protection Criteria (NAS Guidelines). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | Samples were collected in the Los Angeles Harbor Main Channel, The East and West Basins, Slip No. 1 and Slip No. 5, Turning Basin, Cerritos Channel, Long Beach Main Channel, SE, W Bain, Peir J, and Breakwater. | ||||
| Temporal Representation: | Samples range from 10/1991 to 5/2002. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | QA Info Missing | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 160 | ||||
| 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 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): | |||||
|
|||||
| LOE ID: | 161 | ||||
| Pollutant: | DDT (Dichlorodiphenyltrichloroethane) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| 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: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Seven hundred and fourteen samples are available. The pollutant is detected in the majority of these samples (Los Angeles RWCB & CC, 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 for this pollutant is not available that satisfies the conditions of section 6.1.3 of the Listing Policy. | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | The 714 samples are spread throughout the water body. | ||||
| Temporal Representation: | The samples were collected between 1992 and 2001. | ||||
| 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 |
33803 |
Region 4 |
Los Angeles/Long Beach Inner 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 | Revised |
| Sources: | Source Unknown |
| TMDL Name: | Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) |
| TMDL Project Code: | 416 |
| Date TMDL Approved by USEPA: | 03/23/2012 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | This pollutant is being considered for removal on the section 303(d) list under sections 4.1 and 4.4 of the Listing Policy. Under section 4.1 a single line of evidence is necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant. OEHHA fish consumption advisory has been established in this water body segment. Under section 4.4 of the Listing Policy any water body segment where a health advisory against consumption of edible resident organisms has been issued shall remain on the section 303(d) list, until this advisory has been removed or tissue data shows standards are being met in the 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 off the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. An OEHHA fish consumption advisory has been established for this pollutant in this water body. 2. Of the 62 tissue samples available, 60 exceed the OEHHA screening value and this exceeds the frequency in Table 4.1 of the Listing Policy. 3. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 167 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
| Number of Samples: | 62 | ||||
| Number of Exceedances: | 60 | ||||
| Data and Information Type: | Fish tissue analysis | ||||
| Data Used to Assess Water Quality: | Overall, 60 of 62 composite samples exceed OEHHA tissue value. This total was created from different sampling stations within Inner Harbor (TSMP, 2002). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health. | ||||
| Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | OEHHA Screening Value for Total PCBs: 20 ug/kg wet wt. (Brodberg & Pollock, 1999). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | Numerous State Mussel Watch stations were sampled through LA/LB Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1980 to 2000. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | QA Info Missing | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 165 | ||||
| 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 PCBs in the Los Angeles/Long Beach Harbor area. The advisory was established by the Office of Environmental Health Hazard Assessment. | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | |||||
| Objective/Criterion Reference: | |||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | |||||
| Temporal Representation: | |||||
| Environmental Conditions: | |||||
| QAPP Information: | QA Info Missing | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 166 | ||||
| Pollutant: | PCBs (Polychlorinated biphenyls) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms | ||||
| Number of Samples: | 626 | ||||
| Number of Exceedances: | 31 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Of the 626 core and grab sediment samples, 31 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 626 samples are spread throughout the water body. | ||||
| Temporal Representation: | The samples were collected between 1992 and 2002. | ||||
| 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 |
33644 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Zinc |
| Final Listing Decision: | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) |
| Last Listing Cycle's Final Listing Decision: | Do Not Delist from 303(d) list (TMDL required list)(2012) |
| Revision Status | Revised |
| Sources: | Source Unknown |
| TMDL Name: | Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) |
| TMDL Project Code: | 416 |
| Date TMDL Approved by USEPA: | 03/23/2012 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | This pollutant is being considered for removal from the section 303(d) list under section 4.1 of the Listing Policy. Under section 4.1 two lines of evidence are necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant. Although significant sediment toxicity has been documented within the water body segment, zinc does not appear to be the cause of this toxicity. In 2006, based on the readily available data and information, Water Board found that the weight of evidence indicated that there was sufficient justification to remove this water segment-pollutant combination from the section 303(d) list in the Water Quality Limited Segments category. However, the USEPA final decision was to not delist this water body-pollutant combination from the section 303(d) list for 2006 based on the information contained in the lines of evidence. 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. Thirty-five of the 716 sediment samples exceeded the sediment quality guideline and this does not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 169 | ||||
| Pollutant: | Zinc | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | BIOLOGICAL MONITORING | ||||
| Data Used to Assess Water Quality: | Ten measurements are available for mussel tissue (SMWP, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health. | ||||
| Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | There is no tissue guideline available for this pollutant that satisfies the requirements of section 6.1.3 of the Listing Policy. | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | The measurements were taken from samples collected at three stations in the Inner Harbor. Most of the data were collected at one station (601.0). | ||||
| Temporal Representation: | The samples were collected between 1992 and 2000. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | State Mussel Watch Program. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 28499 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 8 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Three of eight sediment samples deemed either moderately or highly toxic. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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. Sediment Toxicity. | ||||
| Spatial Representation: | A total of eight stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were taken and analyzed during 2003. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data was collected in compliance with the sampling and monitoring procedures detailed in the 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 | ||||
|
|||||
| LOE ID: | 170 | ||||
| Pollutant: | Zinc | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 716 | ||||
| Number of Exceedances: | 35 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Of 716 samples, 35 exceeded the sediment quality guideline (LARWQCB and CCC, 2004) (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: | An Effects Range-Median of 410 ug/g was used (Long et al., 1995). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | The samples are spread throughout the Inner Harbor. | ||||
| Temporal Representation: | The samples were collected between 1992 and 2002. | ||||
| 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 |
65100 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Indicator Bacteria |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | New Decision |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.3 of the Listing Policy. Under section 3.3 a single line of evidence are necessary to assess listing status.
6 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 insufficient justification for placing this water segment-pollutant combination on the CWA section 303(d) List. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. 0 of 516, 0 of 472, 0 of 514, 0 of 470, 0 o0f 472 and 0 of 516 sample exceeded the OBJECTIVE and this sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 26 samples is needed to determine if a beneficial use is fully supported using table 3.2. 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 Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
|||||
| LOE ID: | 86164 | ||||
| Pollutant: | Enterococcus | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 516 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 516 samples exceeded the enterococcus objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The enterococcus concentration shall not exceed more than 104/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 86165 | ||||
| Pollutant: | Enterococcus | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 472 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 472 geometric means exceeded the enterococcus objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Geomeans: The enterococcus concentration shall not exceed more than 35/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 86166 | ||||
| Pollutant: | Fecal Coliform | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 514 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 514 samples exceeded the fecal coliform objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The fecal coliform concentration shall not exceed more than 400/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 86167 | ||||
| Pollutant: | Fecal Coliform | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 470 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 470 geometric means exceeded the fecal coliform objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Geomeans: The fecal coliform concentration shall not exceed more than 200/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 86168 | ||||
| Pollutant: | Total Coliform | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 516 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 516 samples exceeded the total coliform objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | The total coliform concentration shall not exceed more than 10000/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 86169 | ||||
| Pollutant: | Total Coliform | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Water Contact Recreation | ||||
| Number of Samples: | 472 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | TOXICITY TESTING | ||||
| Data Used to Assess Water Quality: | Zero of the the 472 geometric means exceeded the total coliform objective. | ||||
| Data Reference: | Data from Terminal Island Water Reclamation Plant NPDES Permit no. CA0053856, Jan. 2006-Jun. 2010 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Geomeans: The total coliform concentration shall not exceed more than 1000/100ml. Water Quality Control Plan Los Angeles Region. (California Ocean Plan) | ||||
| Objective/Criterion Reference: | Water Quality Control Plan Los Angeles Region R4 Basin Plan | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | The samples were collected at sites HW7 and HW16, Long Beach Inner Harbor. | ||||
| Temporal Representation: | The samples were collected approximately four times a month from January 2006 to June 2010. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | The quality assurance manual for the Environmental Monitoring Division Bureau of Sanitation, Department of Public Works, City of Los Angeles was provided. City Of Los Angeles Terminal Island Treatment Plant NPDES permit no. CA0053856. | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
34208 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Benthic Community Effects |
| Final Listing Decision: | List on 303(d) list (being addressed by USEPA approved TMDL) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2012) |
| Revision Status | Revised |
| Sources: | Source Unknown |
| TMDL Name: | Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) |
| TMDL Project Code: | 416 |
| Date TMDL Approved by USEPA: | 03/23/2012 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | 303(d) listing decisions made prior to 2006 were not held in an assessment database.
There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 3921 | ||||
| Pollutant: | Benthic Community Effects | ||||
| LOE Subgroup: | Population/Community Degradation | ||||
| Matrix: | Sediment | ||||
| Fraction: | Not Recorded | ||||
| Beneficial Use: | Warm Freshwater Habitat | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
| Data Reference: | Placeholder reference pre-2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | |||||
| Objective/Criterion Reference: | |||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Unspecified | ||||
| Temporal Representation: | Unspecified | ||||
| Environmental Conditions: | Unspecified | ||||
| QAPP Information: | Unspecified | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
42749 |
Region 4 |
Los Angeles/Long Beach Inner 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 Staff Conclusion: | This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
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. Seven of 80 samples exceed 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. 32 of 90 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. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 28502 | ||||
| Pollutant: | Benzo(a)pyrene (3,4-Benzopyrene -7-d) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 42 | ||||
| Number of Exceedances: | 2 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Two out of 42 samples exceeded the probable effects level for benzo[a]pyrene in marine sediment. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| Contaminated Sediments Task Force Sediment Chemistry data for Los Angeles/Long Beach Inner Harbor. 1992-2003. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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 | ||||
| Spatial Representation: | A total of 42 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 to 97, 1998, 1999 and 2003. | ||||
| Environmental Conditions: | |||||
| 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 | ||||
| Southern California Bight 2003 Regional Marine Monitoring Survey (Bight 03) Quality Assurance Manual | |||||
| Southern California Bight 1998 Regional Marine Monitoring Survey (Bight 98) Quality Assurance Manual | |||||
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 28506 | ||||
| Pollutant: | Benzo(a)pyrene (3,4-Benzopyrene -7-d) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 38 | ||||
| Number of Exceedances: | 5 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Five out of 38 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. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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 | ||||
| Spatial Representation: | A total of 38 stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were collected in Inner Harbor in fall 2006. | ||||
| Environmental Conditions: | |||||
| 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. | ||||
|
|||||
| LOE ID: | 28499 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 8 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Three of eight sediment samples deemed either moderately or highly toxic. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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. Sediment Toxicity. | ||||
| Spatial Representation: | A total of eight stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were taken and analyzed during 2003. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data was collected in compliance with the sampling and monitoring procedures detailed in the 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 | ||||
DECISION ID |
42671 |
Region 4 |
Los Angeles/Long Beach Inner 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 Staff Conclusion: | This pollutant is being considered for placement on the section 303(d) list under section 3.1 and 3.6 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
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. Eight of 80 samples exceed the probable effects level for chrysene in marine sediment and this exceeds the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Thirty-two of 90 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. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 28510 | ||||
| Pollutant: | Chrysene (C1-C4) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 38 | ||||
| Number of Exceedances: | 5 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Five out of 38 samples exceeded the probable effects level for chrysene in marine sediment. | ||||
| Data Reference: | Port of Los Angeles and Port of Long Beach sediment and overlaying and pore water data. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| Evaluation Guideline: | MacDonald et al. lists a probable effects level of 845.98 ng/g dry weight for chrysene. | ||||
| Guideline Reference: | Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 | ||||
| Spatial Representation: | A total of 38 stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were collected in Inner Harbor in fall 2006. | ||||
| Environmental Conditions: | |||||
| 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. | ||||
|
|||||
| LOE ID: | 28499 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 8 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Three of eight sediment samples deemed either moderately or highly toxic. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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. Sediment Toxicity. | ||||
| Spatial Representation: | A total of eight stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were taken and analyzed during 2003. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data was collected in compliance with the sampling and monitoring procedures detailed in the 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 | ||||
|
|||||
| LOE ID: | 28507 | ||||
| Pollutant: | Chrysene (C1-C4) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 42 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Three of 42 samples exceeded the probable effects level for chrysene in marine sediment. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| Contaminated Sediments Task Force Sediment Chemistry data for Los Angeles/Long Beach Inner Harbor. 1992-2003. | |||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| Evaluation Guideline: | MacDonald et al. lists a probable effects level of 845.98 ng/g dry weight for chrysene. | ||||
| Guideline Reference: | Development and evaluation of sediment quality guidelines for Florida coastal waters. Ecotoxicology 5: 253-278 | ||||
| Spatial Representation: | A total of 42 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: | |||||
| 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 | ||||
| Southern California Bight 2003 Regional Marine Monitoring Survey (Bight 03) Quality Assurance Manual | |||||
| Southern California Bight 1998 Regional Marine Monitoring Survey (Bight 98) Quality Assurance Manual | |||||
DECISION ID |
33552 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) |
| Final Listing Decision: | Delist from 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Delist from 303(d) list (TMDL required list)(2012) |
| Revision Status | Original |
| Reason for Delisting: | Other |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Staff Conclusion: | This pollutant is being considered for removal from the section 303(d) list under sections 4.1 and 4.6 of the Listing Policy. Under section 4.6 two lines of evidence are necessary to assess listing status.
Three lines of evidence are available in the administrative record to assess this pollutant. Although sediment toxicity has been documented within the water body segment, none of the sediment samples taken exceeded the sediment quality guideline. In addition, tissue data was collected in 1994 through 1999 but there is no tissue PAH guideline available that satisfies the requirements of section 6.1.3 of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of removing this water segment-pollutant combination off 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. None of the 681 sediment samples taken exceeded the sediment quality guideline and there is no tissue PAH guideline available that satisfies the requirements of section 6.1.3 of the Listing Policy to assess tissue data. These data do not exceed the allowable frequency listed in Table 4.1 of the Listing Policy. Based on section 4.6 of the Listing Policy sediment toxicity has been documented but it is unknown whether this pollutant is linked to the observed toxicity. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Staff Decision Recommendation: | This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed. |
|
|||||
| LOE ID: | 163 | ||||
| Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
| LOE Subgroup: | Pollutant-Tissue | ||||
| Matrix: | Tissue | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | Mussel watch data available from 1994, 1997, 1998, and 1999 (Anderson, et al., 1998; SMWP, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Basin Plan: Toxic pollutants shall not be present at levels that will bioaccumulate in aquatic life to levels which are harmful to aquatic life or human health. | ||||
| Objective/Criterion Reference: | Placeholder reference 2006 303(d) | ||||
| Evaluation Guideline: | No tissue guideline for this pollutant is available that satisfies the requirements of section 6.1.3 of the Listing Policy. Previous listings for this and nearby water segments were based on background concentrations rather than assessment guidelines. | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | One station (601.0). | ||||
| Temporal Representation: | Samples were collected in 1994, 1997, 1998, and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | State Mussel Watch Program. | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 164 | ||||
| Pollutant: | PAHs (Polycyclic Aromatic Hydrocarbons) | ||||
| LOE Subgroup: | Pollutant-Sediment | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 681 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Chemical monitoring of sediments | ||||
| Data Used to Assess Water Quality: | Of the 681 core and grab samples, none 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 guideline of 1,800 ug/g was used (Fairey et al., 2001). | ||||
| Guideline Reference: | Placeholder reference 2006 303(d) | ||||
| Spatial Representation: | The 681 samples are spread throughout the water body. | ||||
| Temporal Representation: | The samples were collected between 1992 and 2001. | ||||
| 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): | |||||
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
DECISION ID |
34495 |
Region 4 |
Los Angeles/Long Beach Inner Harbor |
||
| Pollutant: | Toxicity |
| 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 Staff Conclusion: | This pollutant is being considered for removal on the section 303(d) list under section 4.6 of the Listing Policy. Under section 4.6 a single line of evidence is necessary to assess listing status.
Two 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 not removing this water segment-pollutant combination off 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. Thirty-two of 90 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 4.1 of the Listing Policy. 4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. There is sufficient justification to place this waterbody/pollutant in the Being Addressed portion of the CWA 303(d) List because a TMDL has been completed and approved by USEPA, and is expected to result in attainment of the standard. This conclusion is based on the staff findings that: 1. The Dominguez Channel and Los Angeles and Long Beach Harbors Toxics and Metals TMDL was approved by USEPA on 03/23/2012. |
| Regional Board Staff Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded. |
|
|||||
| LOE ID: | 168 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Number of Samples: | 82 | ||||
| Number of Exceedances: | 29 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Overall, 29 of 82 samples were toxic. This total was created from several different sediment studies within LA/LB Inner Harbor. Twenty-three of 67 samples were toxic (BPTCP). Six of 13 samples were toxic (Bight, 1998). None of two samples were toxic (W-EMAP) (LARWQCB & CCC, 2004). | ||||
| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Los Angeles RWQCB Basin Plan: All waters should be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological response in, human, plant, animal, or aquatic life. | ||||
| 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: | Numerous (82) sites were sampled through Los Angeles/Long Beach Inner Harbor. | ||||
| Temporal Representation: | Samples were collected in 1992, 1994, 1996, 1998 and 1999. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Contaminated Sediment Task Force (2005) and references therein (BPTCP QAPP, Bight 98 QAPP, EMAP 1999 QAPP). | ||||
| QAPP Information Reference(s): | |||||
|
|||||
| LOE ID: | 28499 | ||||
| Pollutant: | Sediment Toxicity | ||||
| LOE Subgroup: | Toxicity | ||||
| Matrix: | Sediment | ||||
| Fraction: | None | ||||
| Beneficial Use: | Marine Habitat | ||||
| Aquatic Life Use: | Preservation of Rare & Endangered Species | ||||
| Number of Samples: | 8 | ||||
| Number of Exceedances: | 3 | ||||
| Data and Information Type: | Toxicity testing of sediments | ||||
| Data Used to Assess Water Quality: | Three of eight sediment samples deemed either moderately or highly toxic. | ||||
| Data Reference: | Southern California Bight 2003 Regional Marine Monitoring Survey Data | ||||
| SWAMP Data: | Non-SWAMP | ||||
| 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 | ||||
| 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. Sediment Toxicity. | ||||
| Spatial Representation: | A total of eight stations were monitored in the Los Angeles/Long Beach Inner Harbor area. | ||||
| Temporal Representation: | Composite surface sediment samples were taken and analyzed during 2003. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Data was collected in compliance with the sampling and monitoring procedures detailed in the 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 | ||||