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:
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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)
- Chemical Contaminants Health Effects Technical Support Document (pdf)
- Analytical Feasibility Support Document for the First Six-Year Review (pdf)
- Occurrence Estimation Methodology and Occurrence Findings Report (pdf)
- Occurrence Summary and Use Support Documentation (pdf)
- Water Treatment Feasibility Support Document (pdf)
- Consideration of Other Regulatory Revisions for Chemical Contaminants in Support of the First Six-Year Review (pdf)