(October 11, 2019, 12:40 PM EDT) -- CHARLESTON, S.C. — A charity and a water supplier on Oct. 4 moved in South Carolina federal court for permission to amend their complaint against the United States related to groundwater contamination from aqueous film forming foam (AFFF) to add claims against new parties including the 3M Co., Tyco Fire Products LP and others (Security Water District, et al. v. United States of America [In re: Aqueous Film Forming Foam], No. 19-2187, MDL 18-2873, D. S.C.)....