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

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

EPA Protocol for the Second Six-Year Review (pdf) (414.77 KB, October 2009, 815-B-09-002)
Health Effects Assessment Summary Report for the Second Six Year Review (pdf) (937.04 KB, October 2009, 822-R-09-006)
Analytical Feasibility Support Document for Second Six-Year Review (pdf) (1.38 MB, October 2009, 818-B-09-003)
Development of Estimated Quantitation Levels for Second Six-Year Review (pdf) (684.13 KB, October 2009, 815-B-09-003)
Occurrence Analysis for Potential Source Waters for Second Six-Year Review (pdf) (1.97 MB, October 2009, 815-B-09-004)
The Analysis of Regulated Contaminant Occurrence Data from Public Water Systems in Support of the Second Six-Year Review (pdf) (12.61 MB, Revised September 2010, 815-B-09-006)
Contaminant Occurrence Support Document for Category 1 Contaminants (pdf) (8.15 MB, October 2009, 815-B-09-010)
Contaminant Occurrence Support Document for Category 2 Contaminants (pdf) (12.59 MB, October 2009, 815-B-09-011)
Water Treatment Technology Feasibility Support Document for Chemical Contaminants for the Second Six-Year Review (pdf) (372.21 KB, October 2009, 815-B-09-007)
Considerations of Other Regulatory Revisions in Support of the Second Six-Year Review (pdf) (238.04 KB, October 2009, 815-B-09-008)

Six-Year Review of Drinking Water Standards