The EPA has proposed “regulatory determinations” for two chemicals whose presence in drinking water has raised alarm among the public and health experts.
The agency is proposing to regulate two contaminants perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) – but not six others: 1,1-dichloroethane, acetochlor, methyl bromide, metolachlor, nitrobenzene, and RDX.