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 |
|---|---|---|---|---|
| Lodge at Lolo Hot Springs | Harrison, MT | 88 | 81 | - |
| 7th Day Adventist Christian School | Hamilton, MT | 88 | 94 | - |
| Springdale Hutterite Colony | White Sulphur Springs, MT | 87 | 33 | - |
| Park Evergreen Trailer Court | Corpus Christi, MT | 87 | 221 | - |
| Hoyt and Scout LLC | Toston, MT | 87 | 45 | - |
| Koocanusa Resort and Marina LLC | Libby, MT | 86 | 33 | - |
| Kinsey School District 63 | Miles City, MT | 86 | 125 | - |
| Augusta School Dist 45 | Augusta, MT | 86 | 263 | - |
| Halfway House | Troy, MT | 86 | 25 | - |
| Flathead Lake United Methodist Camp | Rollins, MT | 86 | 64 | - |
| Glacier Guides Inc | West Glacier, MT | 86 | 19 | - |
| Missouri Meadows Community Inc | Highlands Ranch, MT | 85 | 100 | - |
| Sunrise Terrace No 1 HOA | Kalispell, MT | 85 | 153 | - |
| Stillwater Water District | Kalispell, MT | 85 | 253 | - |
| Pleasant View Homesites W and S District | Kalispell, MT | 85 | 86 | - |
| Green Acres Court | Kalispell, MT | 85 | 28 | - |
| Richland Co Valley View Wua | Sidney, MT | 85 | 486 | - |
| Yellowstone Holiday Wtr and Sew District | West Yellowstone, MT | 85 | 52 | - |
| Morning Star | Bigfork, MT | 85 | 50 | - |
| Antigone Acres HOA | Hamilton, MT | 85 | 99 | - |
| Fallon County Water District | Baker, MT | 85 | 299 | - |
| Ranch Headquarters | Gardiner, MT | 85 | 43 | - |
| Cottonwood Camp Fort Smith | Fort Smith, MT | 85 | 98 | - |
| Marketing Concepts Inc | Glendive, MT | 85 | 32 | - |
| Lds Church Eureka | Corvallis, MT | 85 | 9 | - |
| Applegate Village | Helena, MT | 85 | 214 | - |
| Christ Church of Great Falls | Great Falls, MT | 85 | 7 | - |
| Kettlehouse Brewing and Amphitheater | Bonner, MT | 85 | 164 | - |
| Deep Well Ranch Work Camp | Billings, MT | 85 | 6 | - |
| Heron Community Water System | Heron, MT | 84 | 304 | - |
| Moose Creek Resort | West Glacier, MT | 84 | 39 | - |
| Miller Colony | Choteau, MT | 84 | 268 | - |
| Moose Crossing Inc | Marion, MT | 84 | 68 | - |
| Flathead River RV Resort | Polson, MT | 84 | 198 | - |
| Elk Creek Colony | Augusta, MT | 84 | 520 | - |
| E Bar L Ranch | Greenough, MT | 84 | 69 | - |
| Lake Como Recreation Area | Hamilton, MT | 84 | 105 | - |
| Valley Hub | Helena, MT | 83 | 68 | - |
| Dt Ventures | Gallatin Gateway, MT | 83 | 69 | - |
| Jays Food Store | Missoula, MT | 83 | 69 | - |
| Bair Family Museum | Martinsdale, MT | 83 | 17 | - |
| White Bird Community The | Stevensville, MT | 82 | 110 | - |
| Flaxville Town Of | Flaxville, MT | 82 | 450 | - |
| Lincoln Log Hotel | Lincoln, MT | 82 | 300 | - |
| Turah Store LLC and Turah RV Park LLC | Clinton, MT | 82 | 30 | - |
| Xanterra Employee RV Park | Columbia Falls, MT | 82 | 22 | - |
| Designs for Health Inc | Arlee, MT | 82 | 49 | - |
| Bannack State Park Upper Cg | Dillon, MT | 82 | 15 | - |
| South Forestvale HOA | Helena, MT | 82 | 66 | - |
| Valley Water System The | Stevensville, MT | 82 | 121 | - |