EAU CLAIRE, Wis. (WLAX/WEUX) - Eau Claire County has filed a lawsuit against several manufacturers for allegedly contaminating the Chippewa Valley Regional Airport with PFAS. Among the accused companies are the 3M Company, AC Chemicals Americas Inc., Archroma U.S. Inc., Buckeye Fire Equipment Company and Chembuard Inc. Eau Claire County claims these companies created and [...]