State litigation guide · Montana

PFAS Water Contamination Lawsuit in Montana

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Statute of limitations — Montana

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

A landmark Air Force study of 2,588 servicemen stationed at Malmstrom AFB found testicular cancer incidence 3.7 times the national average for age-matched male controls, providing direct military population epidemiological support for PFAS testicular cancer causation.

Malmstrom AFB — Air Force study found testicular cancer rates 3.7x higher than national controls in servicemen stationed at the Great Falls base — the most direct military epidemiological data on PFAS testicular cancer

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

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