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 |
|---|---|---|---|---|
| Red Cliff Estates HOA | Clancy, MT | 48 | 119 | - |
| Riverstone Family Lodge | Eureka, MT | 48 | 73 | - |
| Bar N Ranch | Belgrade, MT | 48 | 67 | - |
| Grizzly Ridge Retreats Unapproved | Whitefish, MT | 48 | 0 | - |
| Prewett Creek RV Park & Lodge | Augusta, MT | 47 | 175 | - |
| Canyon Ferry Village System | Helena, MT | 47 | 14 | - |
| Hereford Bar and Grill | Sandpoint, MT | 47 | 82 | - |
| Trego School Dist 53 | Trego, MT | 47 | 119 | - |
| Ringling Bar | Ringling, MT | 47 | 169 | - |
| East Malta Colony | Malta, MT | 47 | 178 | - |
| Fallon Water Well Association | Fallon, MT | 47 | 452 | - |
| The Bridge | Belgrade, MT | 47 | 168 | - |
| Corvallis United Methodist Church | Corvallis, MT | 47 | 3 | - |
| Columbia Range HOA | Columbia Falls, MT | 47 | 17 | - |
| Bee Hive Homes of Dillon | Whitehall, MT | 47 | 158 | - |
| McGregor Lake Campground | Libby, MT | 47 | 15 | - |
| Pine Creek Campground | Gallatin Gateway, MT | 47 | 25 | - |
| Pinewood Shores Wua | Polson, MT | 46 | 10 | - |
| Reed Point High School and Gym | Reed Point, MT | 46 | 222 | - |
| Living Hope Fellowship | Helena, MT | 46 | 139 | - |
| Alpine Mobile Manor | Bigfork, MT | 45 | 19 | - |
| Sunset Mobile Home Park | Battle Ground, MT | 45 | 24 | - |
| Posts Trailer Court | Libby, MT | 45 | 72 | - |
| Mount Pleasant Estates | Sidney, MT | 45 | 474 | - |
| Flathead Lake Resort | Big Fork, MT | 45 | 95 | - |
| Bandit LLC | Tustin, MT | 45 | 160 | - |
| Bolin Elementary School Dist 5 | Terry, MT | 45 | 487 | - |
| Elkhorn Hotsprings Resort LLC | Polaris, MT | 45 | 189 | - |
| Forest Creek Subd | Bozeman, MT | 45 | 1,350 | - |
| Bitterroot Pines Tr CT Florence | Hamilton, MT | 45 | 106 | - |
| Turner Border Station | Billings, MT | 45 | 56 | - |
| Kircher School Dist 03 | Miles City, MT | 45 | 17 | - |
| Wards Cove Water Users | Hamilton, MT | 45 | 209 | - |
| Stokes Market Havre | Havre, MT | 45 | 55 | - |
| Loring Hutterian Brethren Inc | Loring, MT | 45 | 221 | - |
| Sky Ranch Water Association | Kalispell, MT | 45 | 79 | - |
| West Gate KOA Dorms | West Yellowstone, MT | 45 | 66 | - |
| Cougar Meadows | St Regis, MT | 45 | 69 | - |
| Mission Valley Church of Christ | Polson, MT | 45 | 25 | - |
| Evergreen Subdivision | Joliet, MT | 45 | 107 | - |
| Cottonwood Homes | Kalispell, MT | 45 | 8 | - |
| Pleasant View Water and Sewer District | Polson, MT | 45 | 51 | - |
| Jack Lincoln Memorial Clinic | Missoula, MT | 45 | 5 | - |
| Mountain Meadow Herbs | Kalispell, MT | 45 | 19 | - |
| Crane Mountain Estates | Bigfork, MT | 45 | 2 | - |
| Loenbro Office Building | Black Eagle, MT | 45 | 46 | - |
| Garnet USA | Alder, MT | 45 | 99 | - |
| Home 40 Public Water Supply | Bozeman, MT | 45 | 39 | - |
| Madison Double R Ranch | Ennis, MT | 45 | 21 | - |
| Crystal Park | Dillon, MT | 45 | 28 | - |