Agency Reopens Perchlorate Comment Period

Stakeholders now have until Oct. 8 to submit comments on additional approaches to analyzing data related to the U.S. Environmental Protection Agency's preliminary regulatory determination for perchlorate.

The agency expects that these comments will ensure that it has considered all the potential options for evaluating whether there is a meaningful opportunity to reduce human health risks to perchlorate through a national primary drinking water rule.

To submit comments, identified by Docket ID No. EPA-HQ-OW-2009-0297, follow the online instructions at, mail to Water Docket, Environmental Protection Agency, Mailcode: 2822T, 1200 Pennsylvania Ave., NW., Washington, DC 20460. or hand deliver during normal operating hours to Water Docket, EPA Docket Center (EPA/DC) EPA West, Room 3334, 1301 Constitution Ave., NW., Washington, D.C.

All comments received will be included in the public docket without change and may be made available on the regulations Web page, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute.

For more information, contact Eric Burneson, Office of Ground Water and Drinking Water, Standards and Risk Management Division, at 202.564.5250 or e-mail

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