June 17, 2026
PFAS in Montana Drinking Water 2026
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PFAS in Montana Drinking Water 2026
PFAS contamination has been detected in drinking water systems across Montana. PFAS are synthetic chemicals linked to cancer, hormone disruption, and immune system effects. The EPA set a 4 ppt limit for PFOA and PFOS in 2024. Our analysis of Montana water quality reports found PFAS present in 286 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse PFAS filters at PureWaterGuys.
Cities in Montana with PFAS Detected
The following 286 water systems in Montana reported PFAS in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| 805 Kentucky Ave Mt Water Quality Report 2026 | View Report |
| Absarokee Mt Water Quality Report 2026 | View Report |
| Alberton Mt Water Quality Report 2026 | View Report |
| Alder Mt Water Quality Report 2026 | View Report |
| Anaconda Mt Water Quality Report 2026 | View Report |
| Antelope Mt Water Quality Report 2026 | View Report |
| Arlee Mt Water Quality Report 2026 | View Report |
| Ashland Mt Water Quality Report 2026 | View Report |
| Augusta Mt Water Quality Report 2026 | View Report |
| Babb Mt Water Quality Report 2026 | View Report |
| Bainville Mt Water Quality Report 2026 | View Report |
| Baker Mt Water Quality Report 2026 | View Report |
| Ballantine Mt Water Quality Report 2026 | View Report |
| Basin Mt Water Quality Report 2026 | View Report |
| Battle Ground Mt Water Quality Report 2026 | View Report |
| Belfry Mt Water Quality Report 2026 | View Report |
| Belgrade Mt Water Quality Report 2026 | View Report |
| Bell Creek Mt Water Quality Report 2026 | View Report |
| Belt Mt Water Quality Report 2026 | View Report |
| Bend Mt Water Quality Report 2026 | View Report |
| Big Fork Mt Water Quality Report 2026 | View Report |
| Big Sandy Mt Water Quality Report 2026 | View Report |
| Big Sky Mt Water Quality Report 2026 | View Report |
| Big Timber Mt Water Quality Report 2026 | View Report |
| Bigfork Mt Water Quality Report 2026 | View Report |
| Billings Mt Water Quality Report 2026 | View Report |
| Bismarck Mt Water Quality Report 2026 | View Report |
| Black Eagle Mt Water Quality Report 2026 | View Report |
| Boise Mt Water Quality Report 2026 | View Report |
| Bonner Mt Water Quality Report 2026 | View Report |
| Boulder Mt Water Quality Report 2026 | View Report |
| Bozeman Mt Water Quality Report 2026 | View Report |
| Brady Mt Water Quality Report 2026 | View Report |
| Bridger Mt Water Quality Report 2026 | View Report |
| Broadus Mt Water Quality Report 2026 | View Report |
| Broadview Mt Water Quality Report 2026 | View Report |
| Brockton Mt Water Quality Report 2026 | View Report |
| Browning Mt Water Quality Report 2026 | View Report |
| Buena Park Mt Water Quality Report 2026 | View Report |
| Butte Mt Water Quality Report 2026 | View Report |
| Bynum Mt Water Quality Report 2026 | View Report |
| Campbell Mt Water Quality Report 2026 | View Report |
| Carter Mt Water Quality Report 2026 | View Report |
| Cascade Mt Water Quality Report 2026 | View Report |
| Charlo Mt Water Quality Report 2026 | View Report |
| Chester Mt Water Quality Report 2026 | View Report |
| Chinook Mt Water Quality Report 2026 | View Report |
| Choteau Mt Water Quality Report 2026 | View Report |
| Circle Mt Water Quality Report 2026 | View Report |
| Clancy Mt Water Quality Report 2026 | View Report |
| Clinton Mt Water Quality Report 2026 | View Report |
| Clyde Park Mt Water Quality Report 2026 | View Report |
| Coeur Dalene Mt Water Quality Report 2026 | View Report |
| Coffee Creek Mt Water Quality Report 2026 | View Report |
| Colstrip Mt Water Quality Report 2026 | View Report |
| Columbia Falls Mt Water Quality Report 2026 | View Report |
| Columbus Mt Water Quality Report 2026 | View Report |
| Condon Mt Water Quality Report 2026 | View Report |
| Conner Mt Water Quality Report 2026 | View Report |
| Conrad Mt Water Quality Report 2026 | View Report |
| Cooke City Mt Water Quality Report 2026 | View Report |
| Coram Mt Water Quality Report 2026 | View Report |
| Corpus Christi Mt Water Quality Report 2026 | View Report |
| Corvallis Mt Water Quality Report 2026 | View Report |
| Corvallis Ravalli Mt Water Quality Report 2026 | View Report |
| Corwin Springs Mt Water Quality Report 2026 | View Report |
| Cotati Mt Water Quality Report 2026 | View Report |
| Crow Agency Mt Water Quality Report 2026 | View Report |
| Culbertson Mt Water Quality Report 2026 | View Report |
| Cut Bank Mt Water Quality Report 2026 | View Report |
| Dallas Mt Water Quality Report 2026 | View Report |
| Darby Mt Water Quality Report 2026 | View Report |
| Dawson Mt Water Quality Report 2026 | View Report |
| Deborgia Mt Water Quality Report 2026 | View Report |
| Deer Lodge Mt Water Quality Report 2026 | View Report |
| Denton Mt Water Quality Report 2026 | View Report |
| Dillon Mt Water Quality Report 2026 | View Report |
| Dixon Mt Water Quality Report 2026 | View Report |
| Dodson Mt Water Quality Report 2026 | View Report |
| Drummond Mt Water Quality Report 2026 | View Report |
| Dupuyer Mt Water Quality Report 2026 | View Report |
| Dutton Mt Water Quality Report 2026 | View Report |
| E Helena Mt Water Quality Report 2026 | View Report |
| Eagle Mt Water Quality Report 2026 | View Report |
| East Glacier Mt Water Quality Report 2026 | View Report |
| East Helena Mt Water Quality Report 2026 | View Report |
| Ekalaka Mt Water Quality Report 2026 | View Report |
| El Dorado Hills Mt Water Quality Report 2026 | View Report |
| Elmo Mt Water Quality Report 2026 | View Report |
| Emigrant Mt Water Quality Report 2026 | View Report |
| Ennis Mt Water Quality Report 2026 | View Report |
| Ethridge Mt Water Quality Report 2026 | View Report |
| Eureka Mt Water Quality Report 2026 | View Report |
| Fairfield Mt Water Quality Report 2026 | View Report |
| Fairview Mt Water Quality Report 2026 | View Report |
| Flaxville Mt Water Quality Report 2026 | View Report |
| Florence Mt Water Quality Report 2026 | View Report |
| Forsyth Mt Water Quality Report 2026 | View Report |
| Fort Benton Mt Water Quality Report 2026 | View Report |
| Fort Harrison Mt Water Quality Report 2026 | View Report |
| Fort Peck Mt Water Quality Report 2026 | View Report |
| Fort Shaw Mt Water Quality Report 2026 | View Report |
| Fort Smith Mt Water Quality Report 2026 | View Report |
| Fortine Mt Water Quality Report 2026 | View Report |
| Frazer Mt Water Quality Report 2026 | View Report |
| Frenchtown Mt Water Quality Report 2026 | View Report |
| Froid Mt Water Quality Report 2026 | View Report |
| Fromberg Mt Water Quality Report 2026 | View Report |
| Ft Peck Mt Water Quality Report 2026 | View Report |
| Galata Mt Water Quality Report 2026 | View Report |
| Gallatin Gateway Mt Water Quality Report 2026 | View Report |
| Gardiner Mt Water Quality Report 2026 | View Report |
| Geraldine Mt Water Quality Report 2026 | View Report |
| Geyser Mt Water Quality Report 2026 | View Report |
| Gildford Mt Water Quality Report 2026 | View Report |
| Glasgow Mt Water Quality Report 2026 | View Report |
| Glendive Mt Water Quality Report 2026 | View Report |
| Grass Range Mt Water Quality Report 2026 | View Report |
| Great Falls Mt Water Quality Report 2026 | View Report |
| Greycliff Mt Water Quality Report 2026 | View Report |
| Hailey Mt Water Quality Report 2026 | View Report |
| Hamilton Mt Water Quality Report 2026 | View Report |
| Hardin Mt Water Quality Report 2026 | View Report |
| Harlem Mt Water Quality Report 2026 | View Report |
| Harlowton Mt Water Quality Report 2026 | View Report |
| Haugan Mt Water Quality Report 2026 | View Report |
| Havre Mt Water Quality Report 2026 | View Report |
| Heart Butte Mt Water Quality Report 2026 | View Report |
| Helena Mt Water Quality Report 2026 | View Report |
| Hermosa Beach Mt Water Quality Report 2026 | View Report |
| Heron Mt Water Quality Report 2026 | View Report |
| Highlands Ranch Mt Water Quality Report 2026 | View Report |
| Highwood Mt Water Quality Report 2026 | View Report |
| Hingham Mt Water Quality Report 2026 | View Report |
| Hinsdale Mt Water Quality Report 2026 | View Report |
| Hobson Mt Water Quality Report 2026 | View Report |
| Hot Springs Mt Water Quality Report 2026 | View Report |
| Hotsprings Mt Water Quality Report 2026 | View Report |
| Houston Mt Water Quality Report 2026 | View Report |
| Hungry Horse Mt Water Quality Report 2026 | View Report |
| Huntley Mt Water Quality Report 2026 | View Report |
| Huson Mt Water Quality Report 2026 | View Report |
| Hysham Mt Water Quality Report 2026 | View Report |
| Ingomar Mt Water Quality Report 2026 | View Report |
| Inverness Mt Water Quality Report 2026 | View Report |
| Jackson Mt Water Quality Report 2026 | View Report |
| Jefferson City Mt Water Quality Report 2026 | View Report |
| Joliet Mt Water Quality Report 2026 | View Report |
| Jordan Mt Water Quality Report 2026 | View Report |
| Judith Gap Mt Water Quality Report 2026 | View Report |
| Kalispell Mt Water Quality Report 2026 | View Report |
| Kevin Mt Water Quality Report 2026 | View Report |
| Knoxville Mt Water Quality Report 2026 | View Report |
| Kodak Mt Water Quality Report 2026 | View Report |
| Lakeside Mt Water Quality Report 2026 | View Report |
| Lambert Mt Water Quality Report 2026 | View Report |
| Lame Deer Mt Water Quality Report 2026 | View Report |
| Laurel Mt Water Quality Report 2026 | View Report |
| Ledger Mt Water Quality Report 2026 | View Report |
| Lewistown Mt Water Quality Report 2026 | View Report |
| Libby Mt Water Quality Report 2026 | View Report |
| Lima Mt Water Quality Report 2026 | View Report |
| Lincoln Mt Water Quality Report 2026 | View Report |
| Livingstion Mt Water Quality Report 2026 | View Report |
| Livingston Mt Water Quality Report 2026 | View Report |
| Lockwood Mt Water Quality Report 2026 | View Report |
| Lodge Grass Mt Water Quality Report 2026 | View Report |
| Logan Mt Water Quality Report 2026 | View Report |
| Lolo Mt Water Quality Report 2026 | View Report |
| Loma Mt Water Quality Report 2026 | View Report |
| Loring Mt Water Quality Report 2026 | View Report |
| Malmstrom Air Force Base Mt Water Quality Report 2026 | View Report |
| Malta Mt Water Quality Report 2026 | View Report |
| Manhattan Mt Mt Water Quality Report 2026 | View Report |
| Manhattan Mt Water Quality Report 2026 | View Report |
| Marion Mt Water Quality Report 2026 | View Report |
| Martin City Mt Water Quality Report 2026 | View Report |
| Martinsdale Mt Water Quality Report 2026 | View Report |
| Mccabe Mt Water Quality Report 2026 | View Report |
| Medicine Lake Mt Water Quality Report 2026 | View Report |
| Melstone Mt Water Quality Report 2026 | View Report |
| Melville Mt Water Quality Report 2026 | View Report |
| Meridian Mt Water Quality Report 2026 | View Report |
| Miles City Mt Water Quality Report 2026 | View Report |
| Milltown Mt Water Quality Report 2026 | View Report |
| Missoula Mt Water Quality Report 2026 | View Report |
| Moore Mt Water Quality Report 2026 | View Report |
| Musselshell Mt Water Quality Report 2026 | View Report |
| Nashua Mt Water Quality Report 2026 | View Report |
| Neihart Mt Water Quality Report 2026 | View Report |
| No City Mt Water Quality Report 2026 | View Report |
| Noxon Mt Water Quality Report 2026 | View Report |
| Nye Mt Water Quality Report 2026 | View Report |
| Opheim Afs Mt Water Quality Report 2026 | View Report |
| Opheim Mt Water Quality Report 2026 | View Report |
| Orem Mt Water Quality Report 2026 | View Report |
| Outlook Mt Water Quality Report 2026 | View Report |
| Pablo Mt Water Quality Report 2026 | View Report |
| Paradise Mt Water Quality Report 2026 | View Report |
| Pendroy Mt Water Quality Report 2026 | View Report |
| Philipsburg Mt Water Quality Report 2026 | View Report |
| Pinesdale Mt Water Quality Report 2026 | View Report |
| Plains Mt Water Quality Report 2026 | View Report |
| Plentywood Mt Water Quality Report 2026 | View Report |
| Plevna Mt Water Quality Report 2026 | View Report |
| Polson Mt Water Quality Report 2026 | View Report |
| Poplar Mt Water Quality Report 2026 | View Report |
| Port Angeles Mt Water Quality Report 2026 | View Report |
| Port Orchard Mt Water Quality Report 2026 | View Report |
| Potomac Mt Water Quality Report 2026 | View Report |
| Power Mt Water Quality Report 2026 | View Report |
| Pray Mt Water Quality Report 2026 | View Report |
| Ramsay Mt Water Quality Report 2026 | View Report |
| Rapelje Mt Water Quality Report 2026 | View Report |
| Red Lodge Mt Water Quality Report 2026 | View Report |
| Renton Mt Water Quality Report 2026 | View Report |
| Rexford Mt Water Quality Report 2026 | View Report |
| Richey Mt Water Quality Report 2026 | View Report |
| Roberts Mt Water Quality Report 2026 | View Report |
| Rocker Mt Water Quality Report 2026 | View Report |
| Rollins Mt Water Quality Report 2026 | View Report |
| Ronan Mt Water Quality Report 2026 | View Report |
| Roundup Mt Water Quality Report 2026 | View Report |
| Roy Mt Water Quality Report 2026 | View Report |
| Rudyard Mt Water Quality Report 2026 | View Report |
| Ryegate Mt Water Quality Report 2026 | View Report |
| Saco Mt Water Quality Report 2026 | View Report |
| Saint Ignatius Mt Water Quality Report 2026 | View Report |
| Saint Regis Mt Water Quality Report 2026 | View Report |
| San Diego Mt Water Quality Report 2026 | View Report |
| Sand Coulee Mt Water Quality Report 2026 | View Report |
| Sandpoint Mt Water Quality Report 2026 | View Report |
| Scobey Mt Water Quality Report 2026 | View Report |
| Scottsdale Mt Water Quality Report 2026 | View Report |
| Seattle Mt Water Quality Report 2026 | View Report |
| Seeley Lake Mt Water Quality Report 2026 | View Report |
| Shelby Mt Water Quality Report 2026 | View Report |
| Shepherd Mt Water Quality Report 2026 | View Report |
| Sheridan Mt Water Quality Report 2026 | View Report |
| Sidney Mt Water Quality Report 2026 | View Report |
| Somers Mt Water Quality Report 2026 | View Report |
| St George Mt Water Quality Report 2026 | View Report |
| St Ignatius Mt Water Quality Report 2026 | View Report |
| St Regis Mt Water Quality Report 2026 | View Report |
| Stanford Mt Water Quality Report 2026 | View Report |
| Stevensville Mt Water Quality Report 2026 | View Report |
| Stockett Mt Water Quality Report 2026 | View Report |
| Sun River Mt Water Quality Report 2026 | View Report |
| Sunburst Mt Water Quality Report 2026 | View Report |
| Superior Mt Water Quality Report 2026 | View Report |
| Sweet Grass Mt Water Quality Report 2026 | View Report |
| Thoimpson Falls Mt Water Quality Report 2026 | View Report |
| Thompson Falls Mt Water Quality Report 2026 | View Report |
| Three Forks Mt Water Quality Report 2026 | View Report |
| Townsend Mt Water Quality Report 2026 | View Report |
| Trego Mt Water Quality Report 2026 | View Report |
| Trout Creek Mt Water Quality Report 2026 | View Report |
| Troy Mt Water Quality Report 2026 | View Report |
| Turner Mt Water Quality Report 2026 | View Report |
| Twin Bridges Mt Water Quality Report 2026 | View Report |
| Two Dot Mt Water Quality Report 2026 | View Report |
| Ulm Mt Water Quality Report 2026 | View Report |
| Valier Mt Water Quality Report 2026 | View Report |
| Vancouver Mt Water Quality Report 2026 | View Report |
| Vaughn Mt Water Quality Report 2026 | View Report |
| Victor Mt Water Quality Report 2026 | View Report |
| Virginia City Mt Water Quality Report 2026 | View Report |
| Warm Springs Mt Water Quality Report 2026 | View Report |
| West Glacier Mt Water Quality Report 2026 | View Report |
| West Yellowston Mt Water Quality Report 2026 | View Report |
| West Yellowstone Mt Water Quality Report 2026 | View Report |
| Westby Mt Water Quality Report 2026 | View Report |
| White Sulphur Springs Mt Water Quality Report 2026 | View Report |
| Whitefish Mt Water Quality Report 2026 | View Report |
| Whitehall Mt Water Quality Report 2026 | View Report |
| Wibuax Mt Water Quality Report 2026 | View Report |
| Wilmington Mt Water Quality Report 2026 | View Report |
| Wilsall Mt Water Quality Report 2026 | View Report |
| Winifred Mt Water Quality Report 2026 | View Report |
| Winnett Mt Water Quality Report 2026 | View Report |
| Wolf Creek Mt Water Quality Report 2026 | View Report |
| Wolf Point Mt Water Quality Report 2026 | View Report |
| Worden Mt Water Quality Report 2026 | View Report |
| Wyola Mt Water Quality Report 2026 | View Report |
| Yellowtail Mt Water Quality Report 2026 | View Report |
| Zortman Mt Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting PFAS in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. Reverse osmosis and activated carbon block filters are most effective at removing PFAS.
Our recommendation: View PFAS filters certified for Montana water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter PFAS From Your Montana Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce PFAS and other contaminants found in Montana water.
Shop PFAS Filters Take the Water QuizFrequently Asked Questions
What is PFAS?
PFAS are synthetic chemicals linked to cancer, hormone disruption, and immune system effects. The EPA set a 4 ppt limit for PFOA and PFOS in 2024.
Is Montana tap water safe to drink?
Water quality varies by city. Of the Montana systems we analyzed, 286 detected PFAS. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes PFAS from tap water?
Reverse osmosis and activated carbon block filters are most effective at removing PFAS. See our PFAS filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.