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Support Documents for EPA’s First Review of Existing Drinking Water Standards

The support documents for the first Six-Year Review of existing National Primary Drinking Water Standards contain extensive information including:

the protocol for conducting the review,
chemical contaminant health effects,
availability of improved laboratory analytical methods,
occurrence of regulated contaminants in public water systems,
availability of improved water treatment processes, and
consideration of other regulatory revisions.

EPA Protocol for the First Six-Year Review (pdf) (439.72 KB, June 2003, 815-R-03-002)
Chemical Contaminants Health Effects Technical Support Document (pdf) (335.87 KB, June 2003, 822-R-03-008)
Analytical Feasibility Support Document for the First Six-Year Review (pdf) (5.25 MB, March 2003, 815-R-03-003)
Occurrence Estimation Methodology and Occurrence Findings Report (pdf) (10.95 MB, June 2003, 815-R-03-006)
Occurrence Summary and Use Support Documentation (pdf) (5.9 MB, March 2002, 815-D-02-006)
Water Treatment Feasibility Support Document (pdf) (376.23 KB, June 2003, 815-R-03-004)
Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the First Six-Year Review (pdf) (288.25 KB, June 2003, 815-R-03-005)