( August 29, 2025, 10:37 AM EDT) -- ATLANTA — The 3M Co. has filed a reply brief in the 11th Circuit U.S. Court of Appeals arguing that an Alabama municipality’s lawsuit for groundwater contamination allegedly from per- and polyfluoroalkyl substances XE "per- and
polyfluoroalkyl substances" (PFAS) in the firefighting agent aqueous film forming foam XE "aqueous film forming foam" (AFFF) belongs in federal court because 3M has made “plausible removal allegations” that any PFAS contamination cannot be “disentangled” from PFAS that was made according to federal specifications....