2019-12773: National Primary Drinking Water Regulations: Perchlorate
Public comment closed .
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The Environmental Protection Agency (EPA) is proposing a drinking water regulation for perchlorate and a health-based Maximum Contaminant Level Goal (MCLG) in accordance with the Safe Drinking Water Act (SDWA). The EPA is proposing to set both the enforceable Maximum Contaminant Level (MCL) for the perchlorate regulation and the perchlorate MCLG at 0.056 mg/L (56 [micro]g/L). The EPA is proposing requirements for water systems to conduct monitoring and reporting for perchlorate and to provide information about perchlorate to their consumers through public notification and consumer confidence reports. This proposal includes requirements for primacy agencies that implement the public water system supervision program under the SDWA. This proposal also includes a list of treatment technologies that would enable water systems to comply with the MCL, including affordable compliance technologies for small systems serving 10,000 persons or less.
The agency’s own summary, as published.
What this changes
Amends 2 parts of the Code of Federal Regulations — the standing rules this notice rewrites.
Rulemaking docket
We haven’t pulled this rulemaking’s full docket yet. View docket EPA-HQ-OW-2018-0780 on Regulations.gov →
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