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Minnesota sues 3M again over PFAS pollution
The state seeks more groundwater treatment and penalties of up to $30,000 per violation per day, according to the lawsuit.
Minnesota is again suing 3M Co. over contamination from products containing 'forever chemicals' at its Cottage Grove manufacturing facility, with the Minnesota Pollution Control Agency filing suit this month in Washington County District Court.
3M began manufacturing PFAS-containing products in the 1980s, prompting Minnesota to sue in 2010 and reach an $850 million settlement in 2018 for contamination affecting east metro drinking water.
PFAS, known as 'forever chemicals,' accumulate in water systems, soil, wildlife and the human body, causing liver damage, thyroid disease and reproductive harm; the lawsuit claims 3M operates 47 separate industrial and stormwater outfalls discharging into the Mississippi River.
Minnesota seeks up to $30,000 per violation per day and demands 3M expand groundwater extraction and treatment systems, while the company claimed it is not liable for firefighting foam because it was manufactured for the U.S. military.
Minnesota's remediation strategy includes construction of an approximately $300 million advanced wastewater treatment system, reflecting the Pollution Control Agency's commitment to identifying, controlling and remediating PFAS releases while holding polluters accountable.