| Water Body Name: | Leviathan Creek |
| Water Body ID: | CAR6321008019980803122747 |
| Water Body Type: | River & Stream |
DECISION ID |
6932 |
Region 6 |
Leviathan Creek |
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| Pollutant: | Metals |
| Final Listing Decision: | List on 303(d) list (being addressed by action other than TMDL) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (being addressed by action other than TMDL)(2006) |
| Revision Status | Original |
| Sources: | Acid Mine Drainage | Erosion/Siltation | Inactive Mining | Mine Tailings |
| Expected Attainment Date: | 2019 |
| Implementation Action Other than TMDL: | Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)
An alternative enforceable program, which is the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), is in place that will address metals and other acid mine drainage associated with the exceedances of water quality standards for this water segment. In May 2000, the USEPA placed the Leviathan mine on the CERCLA National Priorities List (NPL), thus making Leviathan mine a Superfund site. The cleanup process at Leviathan mine is required to meet all environmental requirements, or ARARs (applicable or relevant and appropriate requirements) during its operation. The Leviathan mine is in the Remedial Investigation/Feasibility Study stage of the CERCLA process. A Record of Decision is expected in 2010. |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This water segment is being considered for listing under section 2.2 of the Listing Policy. Under this section of the Policy, a minimum of one line of evidence is needed to assess listing status.
One line of evidence is available in the administrative record to assess this pollutant. A remedial program other than a TMDL has been developed, approved, and is being implemented. This program is expected to result in attainment of the standard. This water segment-pollutant combination (Leviathan Creek - Metals/Metalloids) was moved off the section 303(d) list during this (2006) listing cycle. Based on the readily available information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination in the Water Quality Limited Segments Being Addressed portion of the section 303(d) list. |
| Regional Board Decision Recommendation: | This is a decision made by the State Water Resources Control Board and approved by the USEPA in 2006 . No new data were assessed by the Regional Board for 2008. The decision has not changed. |
| State Board Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
| USEPA Action (if applicable): | |
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| LOE ID: | 2860 | ||||
| Pollutant: | Metals | ||||
| LOE Subgroup: | Narrative Description Data | ||||
| Matrix: | Not Specified | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
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| Number of Exceedances: | |||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | An alternative enforceable program, which is the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), is in place that will address metals and other acid mine drainage associated with the exceedances of water quality standards for this water segment. In May 2000, the USEPA placed the Leviathan mine on the CERCLA National Priorities List (NPL), thus making Leviathan mine a Superfund site. The cleanup process at Leviathan mine is required to meet all environmental requirements, or ARARs (applicable or relevant and appropriate requirements) during its operation.
The Leviathan mine is in the Remedial Investigation/Feasibility Study stage of the CERCLA process. A Record of Decision is expected in 2010. |
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| Data Reference: | Placeholder reference 2006 303(d) | ||||
| SWAMP Data: | Non-SWAMP | ||||
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| QAPP Information: | QA Info Missing | ||||
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