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Water: Six-Year Review 1 of Drinking Water Standards

Six-Year Review 1 of Drinking Water Standards

In July, 2003 the Agency announced the review results for the Agency’s first Six-Year Review (called the Six-Year Review 1).  The Agency reviewed 69 National Primary Drinking Water Regulations (NPDWRs) that were established prior to 1997. These 69 NPDWRs include 68 chemical NPDWRs and the Total Coliform Rule (TCR). Based on the Agency's preliminary review, as well as the public comments received and other new information, EPA believes that it is appropriate to revise the Total Coliform Rule (TCR). The Agency also believes that it is not appropriate to revise the 68 chemical NPDWRs at this time.


Six-Year Review 1 Timeline

July 2003


Announcement of Completion of EPA's First Review of Existing Drinking Water Standards

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.

May 30, 2002


Stakeholder meeting to discuss EPA's protocol and the preliminary decisions

April 17th - June 17th 2002


60 day public comment period

April 17, 2002


Announcement of the Results of EPA’s Review of Existing Drinking Water Standards and Request for Public Comment; Proposed Rule

June - November 2000


November 1999


Initial stakeholder meeting to discuss EPA's preliminary thinking on the protocol for reviewing NPDWRs


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