3M / Aearo Technologies Earplugs PFAS Environmental Contamination Litigation
Case Overview
Per- and polyfluoroalkyl substances (PFAS), often called "forever chemicals," are a class of man-made compounds that do not break down in the environment or the human body. 3M was one of the world's largest manufacturers of PFAS, producing them for decades for use in products ranging from non-stick cookware coatings to firefighting foam. Plaintiffs — including public water systems serving tens of millions of Americans — filed suit alleging that 3M knew for decades that PFAS were toxic and persistent but continued to manufacture and sell them while concealing the health risks. Contamination has been detected in drinking water supplies across all 50 states, with PFAS linked to kidney cancer, thyroid disease, immune system disorders, and developmental harm in children.
In June 2023, 3M announced a landmark settlement of up to $10.3 billion, paid out over 13 years, to resolve claims brought by public water systems nationwide. The settlement — the largest in U.S. history related to water contamination — is intended to fund testing and remediation of PFAS-contaminated drinking water. Individual personal injury claims related to PFAS exposure remain pending in separate litigation. The settlement received final court approval in April 2024, and the claims administration process for eligible public water systems is actively underway, with payments expected to begin flowing to utilities through 2026.
Who May Qualify
Primarily public water systems and municipal water utilities in the United States that detected PFAS contamination in their water supplies attributable to 3M's manufacturing activities. Separately, individuals who were exposed to PFAS-contaminated drinking water and developed related health conditions (such as kidney cancer, thyroid disorders, or ulcerative colitis) may have individual personal injury claims.
Frequently Asked Questions
How much did 3M pay to settle the PFAS water contamination lawsuit?
3M agreed to pay up to $10.3 billion over 13 years to settle claims by public water systems across the United States, making it the largest water contamination settlement in U.S. history. The settlement received final court approval in April 2024.
Can individuals sue 3M for PFAS exposure in their drinking water?
The $10.3 billion settlement covers public water utilities, not individual consumers directly. However, individuals who developed serious health conditions — such as kidney cancer, thyroid disease, or testicular cancer — after exposure to PFAS-contaminated water may have separate personal injury claims against 3M and other manufacturers.
What health problems are linked to PFAS contamination?
Scientific studies and regulatory agencies have linked PFAS exposure to kidney and testicular cancer, thyroid disease, immune system suppression, high cholesterol, ulcerative colitis, and developmental effects in children and infants. The EPA classified certain PFAS as hazardous substances in 2024.