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 |
|---|---|---|---|---|
| Spring Creek MHP | St George, MT | 82 | 6 | - |
| McGregor Lakes RV LLC | Kalispell, MT | 82 | 3 | - |
| Yellowstone Under Canvas | Belgrade, MT | 82 | 34 | - |
| West Creek Ranch | Emigrant, MT | 82 | 25 | - |
| Whispering Pines Campground | Columbia Falls, MT | 82 | 5 | - |
| Bakers Hole Cg | Gallatin Gateway, MT | 82 | 10 | - |
| Yaak Merc and Yaak River Tavern | Troy, MT | 81 | 189 | - |
| Montana Learning Center | Helena, MT | 81 | 34 | - |
| Outback Mobile Home Settlement | Whitefish, MT | 80 | 10 | - |
| Surprise Creek Colony | Stanford, MT | 80 | 154 | - |
| Absaloka Mine | Billings, MT | 80 | 347 | - |
| Glacier Colony | Cut Bank, MT | 80 | 11 | - |
| Riverfront RV Park Garrison | Garrison, MT | 80 | 108 | - |
| River Valley Fellowship | Simms, MT | 80 | 67 | - |
| Camp Rotary Club Monarch | Great Falls, MT | 80 | 51 | - |
| Deer Park School District 2 | Columbia Falls, MT | 80 | 36 | - |
| Ninepipes Lodge LLC | Charlo, MT | 80 | 51 | - |
| Churchill Retirement Home | Manhattan Mt, MT | 80 | 42 | - |
| Prairie Community Hospital | Terry, MT | 80 | 302 | - |
| South Chouteau County Water Dist | Highwood, MT | 80 | 958 | - |
| Rau School District No 21 | Sidney, MT | 80 | 1,091 | - |
| Mission Mountain View HOA | Ronan, MT | 80 | 139 | - |
| Big Sky Christian Center | Hamilton, MT | 80 | 79 | - |
| Lds Church Absarokee | Billings, MT | 80 | 51 | - |
| Jefferson Tracts Assoc Inc | Clancy, MT | 80 | 185 | - |
| Hidden Lake Colony | Cut Bank, MT | 80 | 236 | - |
| Creston Center | Kalispell, MT | 80 | 25 | - |
| Belton Mercantile Inc Apgar | East Glacier Park, MT | 80 | 9 | - |
| Spring Tree Ridge | Great Falls, MT | 80 | 514 | - |
| Crazy Mountain Ranch Employee Housing | Clyde Park, MT | 80 | 9 | - |
| Crescent Village Property Owners Associa | Thompson Falls, MT | 80 | 36 | - |
| Red Sky Mobile Home Community | Dillon, MT | 80 | 21 | - |
| Hidden Valley Colony | Gildford, MT | 80 | 156 | - |
| Curious Minds Montessori Preschool | Hamilton, MT | 80 | 346 | - |
| Sunny Brook Colony | Fort Benton, MT | 80 | 0 | - |
| Sunshine Academy Shepherd | Billings, MT | 80 | 0 | - |
| Mitchell Court Apartments | Helena, MT | 80 | 0 | - |
| Grassland Colony | Great Falls, MT | 80 | 0 | - |
| Hideout LLC | Miami, MT | 79 | 119 | - |
| Hilldale Colony | Havre, MT | 79 | 155 | - |
| Woods Bay Marina | Missoula, MT | 79 | 59 | - |
| Ruger Water District | East Helena, MT | 79 | 2 | - |
| River Acres Inc | Missoula, MT | 78 | 232 | - |
| Big Pines Trailer Court | Missoula, MT | 78 | 34 | Clean |
| Big Bull Bar and Grill | East Helena, MT | 78 | 244 | - |
| Twin Hills Colony Inc | Carter, MT | 78 | 101 | - |
| Larry's Six Mile Huson | Superior, MT | 77 | 59 | - |
| Triple G's Resort | Essex, MT | 77 | 77 | - |
| A Bar | Bigfork, MT | 77 | 179 | - |
| The Wild Mare | Corvalis, MT | 77 | 92 | - |