The support documents for the first Six-Year Review of existing National Primary Drinking Water Standards contain extensive information including:
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the protocol for conducting the review,
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chemical contaminant health effects,
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availability of improved laboratory analytical methods,
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occurrence of regulated contaminants in public water systems,
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availability of improved water treatment processes, and
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consideration of other regulatory revisions.
- EPA Protocol for the First Six-Year Review (PDF)(60 pp, 450 K, June 2003, 815-R-03-002)
- Chemical Contaminants Health Effects Technical Support Document (PDF)(40 pp, 344 K, June 2003, 822-R-03-008)
- Analytical Feasibility Support Document for the First Six-Year Review (PDF)(380 pp, 6 MB, March 2003, 815-R-03-003)
- Occurrence Estimation Methodology and Occurrence Findings Report (PDF)(874 pp, 11 MB, June 2003, 815-R-03-006)
- Occurrence Summary and Use Support Documentation (PDF)(459 pp, 6 MB, March 2002, 815-D-02-006)
- Water Treatment Feasibility Support Document (PDF)(36 pp, 385 K, June 2003, 815-R-03-004)
- Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the First Six-Year Review (PDF)(34 pp, 295 K, June 2003, 815-R-03-005)