PFAS in Montana Water
Based on EPA UCMR 5 testing of 5 public water systems in Montana.
See Montana on the national heatmap5
Systems Tested
5
With PFAS Detected
2
Above EPA Limits
40%
Exceed MCL
Most Commonly Detected PFAS in Montana
Systems with detections · EPA UCMR 5 (2023–2025)
PFBS 2 systems
PFOS 2 systems
PFHxS 1 system
PFBA 1 system
Check your Montana ZIP code
Get specific results for your neighborhood's water utility.
Water Systems in Montana (5)
Click any row to see ZIP-level details| Water System | PWSID | PFAS Detected | Above MCL | Risk |
|---|---|---|---|---|
| KALISPELL PUBLIC WORKS Groundwater | MT0000259 | 2 | 1 | High Risk |
| ALPINE VILLAGE WUA Groundwater | MT0003229 | 1 | 1 | High Risk |
| HAMILTON CITY OF Groundwater | MT0000234 | 1 | 0 | Low Level |
| MALMSTROM AIR FORCE BASE Surface Water | MT0000515 | 1 | 0 | Low Level |
| BIG SKY COUNTY WATER AND SEWER DIST 363 Groundwater | MT0002385 | 1 | 0 | Low Level |