PFAS Forever-Chemical Water Contamination from 3M’s Manufacturing Plant in Cottage Grove, Washington County, Minnesota: Attorney911 Pursues Toxic-Tort Claims for East Twin Cities Families Exposed Through Drinking Water, Ralph Manginello’s 27+ Years of Federal-Court Trial Practice Against the Manufacturer and Its Corporate Parent, We Pull Groundwater Monitoring Data and Internal PFAS Health-Risk Documents Before the Retention Cycle Erases Them, We Defeat the Government-Contractor Defense 3M Invokes, Lupe Peña the Former Insurance-Defense Insider Who Knows How the Claims Machine Values and Denies Chemical-Exposure Cases, PFAS Bioaccumulation Linked to Thyroid and Liver Disease, Fertility Problems and Low Birth Weight, Minnesota’s Strict Liability Regime for Hazardous-Substance Releases and the Federal CERCLA Hazardous-Substance Designation, the Firm Has Recovered $50M+ for Injury Victims — Free 24/7 Consultation, No Fee Unless We Win, Hablamos Español, 1-888-ATTY-911
Cottage Grove PFAS Contamination: Minnesota’s New Lawsuit Against 3M and What It Means for Your Family If you live in Cottage Grove, or Woodbury, or Oakdale, or any of the east-metro communities that sit on the same groundwater aquifers that 3M’s chemical plant has been sitting on for seventy years, you already know this story. You have been hearing about PFAS — “forever chemicals” — for over a decade. You watched the state sue 3M in 2010. You watched the $850 million settlement in 2018. You watched 3M disclose a previously undisclosed chemical release in 2020. You may have had your water tested, or switched to bottled water, or installed a filtration system. And now, in May 2026, you are reading that the Minnesota Pollution Control Agency has filed a new lawsuit — alleging that 3M’s Cottage Grove plant is still releasing PFAS into groundwater and the Mississippi River, that hazardous waste containers were never removed, and that a $300 million treatment system does not actually stop contaminated water from reaching the river. Here is the single most important thing this page will tell you: the state’s lawsuit does not compensate you. It seeks civil penalties, cleanup costs, and natural…