The state discovered in July more than 7,000 gallons of wastewater contaminated with PFAS had leaked from a damaged retention pond.

A cookware industry group is suing Minnesota in federal court over the state’s sweeping new PFAS ban, arguing the law is unconstitutional and discriminates against out-of-state manufacturers. “Manufacturers will be forced to either keep their products out of the Minnesota market or treat Minnesota’s regulation as the national standard,

The ban that went into effect on Jan. 1 bans products that contain PFAS, which are used in non-stick cookware.