Coalition Letter: Regulation of PFOS, PFOA and other PFAS in Drinking Water Jun 3, 2020 Comment Letters To: The Honorable Andrew Wheeler Subject: Regulation of PFOS, PFOA and other PFAS in drinking water Letter excerpt: We appreciate the U.S. Environmental Protection Agency (EPA) acting on its Per- and Poly-fluoroalkyl Substance (PFAS) Action Plan and proposing positive regulatory determinations for perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA). We ask that EPA move expeditiously to prepare the requisite analyses critical to proposing sound drinking water standards. The implications of regulating these substances will be far-reaching. A well-timed decision, based on sound science and robust analyses, is necessary to ensure effective protection of human health. Download the Coalition Letter