3M Company is once again in the spotlight over PFAS contamination, as local reports from Wausau, Wisconsin, highlight elevated levels of the so-called 'forever chemicals' at its Greystone facility and nearby quarry. Testing revealed concentrations hundreds of times above the state's proposed regulatory thresholds, reigniting concerns among residents and investors alike.
The renewed scrutiny comes as 3M continues to manage a sprawling legal and environmental liability portfolio tied to PFAS. As of March 31, the company reported $7.8 billion in other environmental liabilities, slightly up from $7.7 billion at year-end 2025, according to its first-quarter filing. The bulk of these liabilities are linked to PFAS-related issues.
Residents of the Village of Maine have been invited to a Saturday town hall meeting regarding a class-action lawsuit that alleges 3M dumped PFAS-laced roofing materials at the Greystone Facility and Quarry, with contamination migrating into private wells. Lawyers will be available at the Bantr Hotel in Rothschild from 11 a.m. to 5 p.m. to discuss the case.
3M disclosed to investors that in August 2024, the U.S. Environmental Protection Agency requested information on PFAS handling and disposal at both the Greystone facility and a downtown Wausau location. By October 2025, the EPA indicated it had not found an immediate need for further action. However, Wisconsin regulators concluded that hazardous substances had been released from the Greystone site, approved a site investigation plan, and received initial sampling results by January.
Private well owners near the Wausau Greystone quarry filed a lawsuit in December 2024, seeking property damages and medical monitoring costs. While 3M achieved a partial victory in March when the court dismissed some claims, discovery continues. Plaintiffs have until July 24, 2026, to file for class certification, with a trial tentatively scheduled for November 2027.
3M has completed its PFAS manufacturing exit, meeting its end-of-2025 timeline. The company remains responsible for managing PFAS produced prior to the phaseout, including water treatment and cleanup of waste at former production sites.
Despite legal headwinds, 3M reported solid first-quarter results on April 21, with $6.0 billion in sales and adjusted earnings of $2.14 per share, yielding an adjusted operating margin of 23.8%. Management reaffirmed its full-year 2026 adjusted earnings outlook of $8.50 to $8.70 per share. CEO William Brown called the quarter 'a good start to the year,' highlighting process simplification, portfolio moves, and shareholder returns.
However, pressure persists. After earnings, Reuters reported that 3M flagged a $125 million annual hit from rising oil prices. CFO Anurag Maheshwari noted that the company's actions 'more than offset' about $145 million in tariffs, costs, and investments last quarter. He also told analysts that earnings per share would likely be stronger in the first half than the second, citing contingencies expected later this year.
The PFAS legal landscape extends beyond 3M. In its latest quarterly update, 3M disclosed that other companies, including DuPont and Chemours, are co-defendants in some lawsuits. Manufacturers in carpets, paper, and textiles also face exposure. Still, 3M's production legacy and settlement history keep it at the center of attention.
3M shares closed Friday at $142.50, down 2.7%, giving the company a market capitalization of approximately $75.4 billion. Investors are weighing local PFAS scrutiny against 3M's cost-cutting, share repurchases, and steady guidance. Key legal milestones ahead include Wisconsin DNR's continued assessment of Greystone, the July class-certification deadline in the Wausau case, and a June 2026 hearing on 3M's proposed PFAS settlement in New Jersey. As CEO Brown focuses on factory numbers, pricing, and demand, cleanup remains a front-burner issue.
