( March 10, 2026, 10:36 AM EDT) -- CHARLESTON, S.C. — Alpena County, Mich., has filed a lawsuit in South Carolina federal court joining the multidistrict litigation (MDL) against the 3M Co., E.I. DuPont de Nemours & Co. and other makers of per- and polyfluoroalkyl substances (PFAS) related to PFAS in the firefighting agent aqueous film forming foam (AFFF), alleging that they “knowingly unleashed long-lasting and ongoing PFAS contamination” in the county’s groundwater....