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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...
