3M Faces New Lawsuit Over ‘Forever Chemicals’ Pollution in Minnesota
May 13, 2026 | Source: FOX9 | by Nick Longworth
Minnesota sues 3M for ongoing PFAS contamination
What we know:
The MPCA filed the lawsuit May 1, alleging that 3M is responsible for ongoing groundwater and surface water contamination, including industrial and stormwater discharges into the Mississippi River near its Cottage Grove facility.
In its argument, the state says some locations tested for PFAS showed concentrations as high as 310,000 parts per trillion, far above the state standard. The agency claims that although the specific site “does not routinely discharge to surface waters,” a heavy rainfall could lead to contamination entering the river.
The MPCA also alleges that 3M has not completed required cleanup work under a 2022 order and that its groundwater extraction system is not sufficient.
Minnesota previously sued 3M over PFAS, resulting in a 2018 settlement where the company paid $850 million to help clean up drinking water in the east metro. In 2024, 3M also agreed to pay $10.3 billion over 13 years to address PFAS in drinking water systems nationwide.