Data / Federal rules / 2024-02247

Unregulated Contaminant Monitoring Rule; Methods Request and Webinar

The Environmental Protection Agency published this proposed rule in the Federal Register on February 8, 2024. Comments closed on April 8, 2024.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is requesting public input on drinking water analytical methods for emerging contaminants in drinking water, particularly those listed on the agency's Fifth Contaminant Candidate List (CCL 5), that might support monitoring under the Unregulated Contaminant Monitoring Rule. This notice describes published drinking water analytical methods and EPA drinking water methods currently in development for the CCL and other emerging contaminants, with an expectation that some of these methods will support the sixth Unregulated Contaminant Monitoring Rule (UCMR 6) and/or other future cycles of the UCMR program. The agency is also announcing a virtual public meeting (via webinar) to discuss potential approaches to developing UCMR 6. The webinar will discuss the following: drinking water analytical methods and contaminants being considered, UCMR 6 sampling design, laboratory approval, and other potential aspects of the monitoring approach. The agenda will include time for brief remarks by participants who pre- register.

Key facts

Document number: 2024-02247
Type: Proposed rule
Action: Request for public comment and notice of a public meeting
Agency: Environmental Protection Agency
Published: February 8, 2024
Comments due: April 8, 2024
Dates: Comments must be received on or before April 8, 2024. Public meeting: The EPA will host a webinar regarding UCMR 6 development on April 17, 2024 and April 18, 2024. The same material will be presented twice. Please refer to the SUPPLEMENTARY INFORMATION section for additional information on the webinar.
Docket: EPA-HQ-OW-2023-0469; FRL-10857-04-OW
Code of Federal Regulations: 40 CFR 141
Pages: 15

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Published in February 2024

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