Preparing for PFAS Regulations

Water system operators should be planning for the EPA’s proposed maximum contaminant levels

Preparing for PFAS Regulations

Under proposed EPA rules, treatment of drinking water would be required after the testing of water systems reveals one or more MCL exceedances.

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a family of chemical compounds that have been manufactured and used around the world since the 1940s. The most common chemicals used in the PFAS group — perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) — are...

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