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EPARulemakingEPA-HQ-OW-2023-0325

Mercury Criterion to Protect Aquatic Life in Idaho

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National Mining Association filed 1 comment on this docket between Jun 12, 2024 and Jun 12, 2024. 5 other organizations filed here. The comment window closed 778d ago.

What National Mining Association filed (1)

Jun 12, 2024· Comment submitted by National Mining Association (NMA)· EPA-HQ-OW-2023-0325-0378

The NMA appreciates the opportunity to file the attached comments. Please contact cmchale@nma.org with any questions.

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Abstract

The Environmental Protection Agency (EPA) is proposing to promulgate a Federal Clean Water Act (CWA) chronic aquatic life ambient water quality criterion for waters under the state of Idaho’s jurisdiction to protect aquatic life from the effects of exposure to harmful concentrations or levels of total mercury (i.e., including methylmercury and inorganic mercury). In 2008, the EPA disapproved the state’s revision of its mercury aquatic life criteria. The state has not adopted and submitted revised mercury aquatic life criteria to the EPA to address the EPA’s 2008 disapproval. Therefore, the EPA is proposing a Federal mercury criterion to protect aquatic life uses in Idaho.

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