On Feb. 20, 2020, roughly one year after announcing its comprehensive per- and polyfluoroalkyl substances (PFAS) action plan, the Environmental Protection Agency (EPA) issued a preliminary regulatory determination under the Safe Drinking Water Act (SDWA) for the two most-studied of the chemicals, perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA). This is the initial step in the process of promulgating a National Primary Drinking Water Regulation and imposing an enforceable “maximum contaminant level” (MCL) for the substances – just two of the more than 7,000 so-called “forever chemicals” that are under intense scrutiny from lawmakers and the public.

Read the full GT Alert, “PFAS Update: EPA Begins Process of Developing Drinking Water Limits for PFOS and PFOA.”