PFAS Water Contamination Lawsuit in Montana

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Researched By
People's Justice Research Team

Verified against court records, regulatory records, and peer-reviewed research.

Last reviewed: June 11, 2026How we research

Last reviewed against primary sources: June 11, 2026

Statute of Limitations

Montana has a 3-year statute of limitations for personal injury claims from the date of discovery.

3 years from discovery of injury and PFAS connection

Filing Venue

Where to File in Montana

Montana personal injury claims are governed by Mont. Code § 27-2-204, providing a 3-year limitations period from discovery. Federal PFAS claims proceed in MDL 2873 (D.S.C.). Malmstrom AFB in Cascade County (Great Falls) is the primary military PFAS contamination site. The Air Force's own study found that servicemen stationed at Malmstrom had testicular cancer rates 3.7 times higher than age-matched national controls — one of the most compelling pieces of epidemiological evidence for PFAS testicular cancer causation in a military population. Great Falls-area residents who consumed PFAS-contaminated water from Malmstrom AFFF operations have strong exposure and causation arguments.

Montana Data

Exposure in Montana

Source: Air Force Epidemiological Study of AFFF-Exposed Personnel at Malmstrom AFB