The state of Minnesota has filed a new lawsuit against Maplewood-based 3M, alleging that PFAS from the company’s manufacturing plant in Cottage Grove continue to contaminate groundwater and the Mississippi River.
In the case filed May 1 in Washington County District Court, the Minnesota Pollution Control Agency accuses 3M of violating state permits and regulations and says its actions “present an ongoing and continuous harm to Minnesota’s environment and threat to Minnesotans.”
3M is seeking to have the case moved to federal court. The company argues that it’s not liable for PFAS contamination tied to fire-suppressing foam it manufactured at the Cottage Grove plant, because it was at the direction of the U.S. military…