Public Water Systems
2,263 active public water systems in MT, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Genesis Business Park | Gallatin Gateway, MT | 670 | 185 | - |
| Fort Peck Rural County Water District | Ft. Peck, MT | 663 | 30 | - |
| Target Range Main School | Missoula, MT | 660 | 438 | - |
| St Labre Indian School | Ashland, MT | 650 | 1,488 | - |
| Cascade Town Of | Cascade, MT | 650 | 18 | - |
| West Valley School District No 1 | Kalispell, MT | 650 | 17 | - |
| Many Glacier Lodge Hotel | West Glacier, MT | 650 | 0 | - |
| Hillside Village | Dallas, MT | 650 | 143 | - |
| Hope Church | Kalispell, MT | 650 | 32 | - |
| Circle Town Of | Circle, MT | 644 | 59 | - |
| Sheridan Town Of | Sheridan, MT | 632 | 123 | - |
| Stillwater Mining Company | Nye, MT | 630 | 53 | - |
| Nevada City | Virginia City, MT | 621 | 68 | - |
| Greenfield Mobile Home Park | Missoula, MT | 620 | 248 | - |
| Lewis and Clark Caverns Visitor Center | Whitehall, MT | 615 | 42 | - |
| Lolo Super Stop | Lolo, MT | 615 | 19 | - |
| Big Sandy Town Of | Big Sandy, MT | 608 | 58 | - |
| Ptarmigan Village Inc | Whitefish, MT | 600 | 46 | - |
| Belt Town Of | Belt, MT | 600 | 169 | - |
| Hot Springs Municipal Water | Hot Springs, MT | 600 | 118 | - |
| Joliet Town Of | Joliet, MT | 600 | 244 | - |
| Medicine Lake Town Of | Medicine Lake, MT | 600 | 136 | - |
| Wilson Foods | Arlee, MT | 600 | 101 | - |
| Big Timber KOA | Big Timber, MT | 600 | 100 | - |
| East Bound Hathaway Rest Area | Miles City, MT | 600 | 41 | - |
| Jefferson City South Rest Stop | Butte, MT | 600 | 51 | - |
| Wb Hathaway Rest Area | Miles City, MT | 600 | 38 | - |
| Travel Centers of America Truck Plaza | Westlake, MT | 600 | 17 | - |
| Stokes Market Florence | Florence, MT | 600 | 33 | - |
| Westgate Cenex | Billings, MT | 600 | 34 | - |
| Lone Pine Store | Hamilton, MT | 600 | 60 | - |
| Cherry Creek Estates LLC | Billings, MT | 600 | 62 | - |
| White Sandy Campground | Helena, MT | 600 | 26 | - |
| Countryside Village MHP Grt Fls | Orem, MT | 600 | 4 | - |
| Town Pump Travel Plaza Glendive | Butte, MT | 600 | 14 | - |
| Elder Grove Middle School Bldg 6 | Billings, MT | 600 | 26 | - |
| Vaughn Cascade County Water and Sewer | Vaughn, MT | 585 | 57 | - |
| Fort Harrison Military Complex | Fort Harrison, MT | 580 | 15 | - |
| Jim Darcy School District No 1 | Helena, MT | 575 | 183 | - |
| Gsk Biologicals | Hamilton, MT | 560 | 20 | - |
| Wibaux Town Of | Wibuax, MT | 550 | 156 | - |
| Frenchtown High School | Frenchtown, MT | 550 | 13 | Clean |
| Rossiter School District 01 | Helena, MT | 550 | 175 | - |
| Montana City School Dist 27 | Clancy, MT | 534 | 66 | - |
| T and T Subdivision | Wolf Creek, MT | 531 | 44 | - |
| Windsor Estates | Lincoln, MT | 530 | 126 | - |
| Two Buttes Water Users Assn | Fort Shaw, MT | 525 | 119 | - |
| Town Pump Anaconda 1 | Butte, MT | 524 | 102 | - |
| Snowbowl Lodge | Missoula, MT | 521 | 34 | - |
| Lincolns Silver Dollar Bar | Haugen, MT | 520 | 14 | - |