In Shift, Some States Seek PFAS Advisories Rather Than Toxicity Values

In an apparent shift, some state officials are pressing EPA to go beyond its current plans to craft toxicity values for several per- and polyfluoroalkyl substances (PFAS) and instead develop non-binding health advisory levels in drinking water, arguing the toxicity values are of little use to state drinking water and cleanup programs. Should EPA eventually craft such health advisory levels, it could provide states with clearer -- albeit non-regulatory -- cleanup targets for drinking water contaminated with PFAS, the class...