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The Environmental Council of the States (ECOS)

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Drinking Water

Resources for Drinking Water Providers

March 11, 2026

PFAS Map Series

March 11, 2026

PFAS and Drinking Water Webpage

March 11, 2026

AAAS PFAS Risk Communications Resources

March 11, 2026

CDC Drinking Water Advisory Communication Toolkit

March 11, 2026

UCMR 5 Data Finder

October 28, 2025

This online tool allows users to easily search for, summarize, and download teh available analytical results from the fifth Unregulated Contaminant Monitoring Rule (UCMR 5).

EPA Fact Sheet on NPDWR Sample Collection and Anlysis

October 28, 2025

This fact sheet, intended for primacy agencies, drinking water system operators, laboratory personnel, and other parties involved with sampling, analysis, or handling samples for the PFAS NPDWR, includes requirements for sample kits, receipts,…

Arizona Department of Environmental Quality Resources for Public Water Systems

October 2, 2025

This webpage provides information on public water system testing and the ADEQ PFAS Mitigation Plan related to drinking water to address PFAS MCLs established under the EPA National Primary Drinking…

Washington State Department of Health Dashboard for Drinking Water Results

October 2, 2025

This online dashboard includes a mapping tool showing PFAS results for drinking water testing at Group A public water system sources, as well as a data table and summary statistics.

Michigan Department of Environment, Great Lakes, & Energy PFAS Geographic Information System

October 2, 2025

This online mapping tool features datasets on PFAS sites, areas of interest, water and fish sampling, and more.

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The Environmental Council of the States
1250 H Street NW, Suite 850
Washington, DC 20005

Email: ecos@ecos.org
Tel 202-266-4920
Fax 202-266-4937

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