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Announcing Publication of Proposed UCMR 4 and Stakeholder Webinar

Posted By IAMU, Tuesday, December 15, 2015

The United States Environmental Protection Agency (EPA) is announcing the publication of the Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) for Public Water Systems; Proposed Rule (80 FR 76897; December 11, 2015). UCMR 4 will provide EPA and other interested parties with scientifically valid data on the occurrence of particular contaminants in drinking water. This data set is a primary source of occurrence and exposure data that the EPA uses in its determination of whether or not to regulate drinking water contaminants to protect public health.

EPA invites public comments on the proposed rule. Comments must be received on or before February 9, 2016. Please refer to the FR notice for more details about submitting comments to Docket ID No. EPA-HQ-OW-2015-0218 using the Federal eRulemaking Portal:

EPA will host a webinar on January 13, 2016 from 1:00-4:30 p.m. eastern time to discuss key aspects of the UCMR 4 proposal, including monitoring requirements, analyte selection and rationale, analytical methods, the laboratory approval process and ground water representative monitoring plans. Those who wish to participate in the public webinar must register in advance at no later than January 10, 2016 by 5:00 p.m. eastern time.

Individuals or organizations interested in making a statement should identify their interest when they register. We ask that only one person present on behalf of a group or organization, and that the presentation be limited to ten minutes. To help ensure accurate records, EPA requests that written presentation materials be submitted to no later than January 10, 2016 by 5:00 p.m. eastern time.

Registrants will receive confirmations and further webinar information via email. Questions regarding webinar registration should be emailed to

Tags:  Water 

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