Public Water Systems
2,263 active water systems in MT.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| CORVALLIS GYM AND MIDDLE SCHOOL | CORVALLIS, MT | 900 | 6 | — |
| PIONEER WATER SERVICE | BILLINGS, MT | 900 | 42 | — |
| HARDIN EASTBOUND REST AREA | BILLINGS, MT | 877 | 112 | — |
| CHESTER TOWN OF | CHESTER, MT | 870 | 25 | — |
| DARBY TOWN OF | DARBY, MT | 850 | 639 | — |
| CHRISTIAN LIFE CENTER | MISSOULA, MT | 846 | 165 | — |
| VALLEY GROVE SUBDIVISION | BELGRADE, MT | 825 | 148 | — |
| HARLEM CITY OF | HARLEM, MT | 820 | 561 | — |
| OLES COUNTRY STORE | STEVENSVILLE, MT | 820 | 37 | — |
| THRIFTWAY SUPER STOP #8 BOZEMAN | BUTTE, MT | 817 | 290 | — |
| PHANTOM HILLS WATER SYSTEM | MISSOULA, MT | 810 | 91 | Clean |
| DEARBORN N CRAIG REST STOP | GREAT FALLS, MT | 808 | 31 | — |
| FRENCHIES SUPER STOP | MISSOULA, MT | 808 | 16 | — |
| BEARS COUNTRY STORE | LIBBY, MT | 805 | 186 | — |
| WORDEN BALLANTINE YELLOWSTONE | FORT SMITH, MT | 800 | 403 | — |
| MEADOWLARK OF BILLINGS LLC | OREM, MT | 800 | 52 | — |
| COLUMBUS REST AREA EASTBOUND | BILLINGS, MT | 800 | 96 | — |
| EMIGRANT REST STOP | BOZEMAN, MT | 800 | 35 | — |
| COLUMBUS REST AREA WESTBOUND | BILLINGS, MT | 800 | 78 | — |
| PINESDALE TOWN OF | PINESDALE, MT | 800 | 978 | Detected |
| SHEPHERD SCHOOLS | SHEPHERD, MT | 800 | 42 | — |
| JEFFERSON HILLS WUA | HELENA, MT | 780 | 170 | — |
| GOLDEN MEADOWS SUBDIVISION | OREM, MT | 772 | 2 | — |
| BIG SKY FOOD AND FUEL INC | EAST HELENA, MT | 770 | 31 | — |
| SOMERS CO WATER AND SEWER DIST | SOMERS, MT | 765 | 26 | — |
| GLACIER PARK INC | EAST GLACIER PARK, MT | 765 | 4 | — |
| TOWN PUMP GORE HILL | BUTTE, MT | 760 | 145 | — |
| CASEYS CORNER 9 | MIAMI, MT | 759 | 131 | — |
| BRIDGER TOWN OF | BRIDGER, MT | 750 | 106 | — |
| TIBER COUNTY WATER DISTRICT | BRADY, MT | 750 | 555 | — |
| FISHER WATER SERVICE | BILLINGS, MT | 750 | 75 | — |
| TEN MILE AND PLEASANT VALLEY WUA | HELENA, MT | 750 | 460 | — |
| LANDMARK SUBDIVISION | BOZEMAN, MT | 750 | 17 | — |
| TOWN PUMP LOLO 1 | BUTTE, MT | 744 | 41 | — |
| TOWN PUMP BELGRADE 4 | BUTTE, MT | 730 | 129 | — |
| WEST GATE KOA CG | WEST YELLOWSTONE, MT | 722 | 32 | — |
| MONTANA STATE HOSPITAL COMPLEX | WARM SPRINGS, MT | 721 | 27 | — |
| FAIRFIELD TOWN OF | FAIRFIELD, MT | 718 | 368 | Detected |
| HARDIN WESTBOUND REST AREA | BILLINGS, MT | 715 | 33 | — |
| NORTH STAR PUD | HELENA, MT | 715 | 100 | — |
| CULBERTSON TOWN OF | CULBERTSON, MT | 714 | 39 | — |
| TRAVOIS VILLAGE MOBILE PARK | MISSOULA, MT | 702 | 47 | — |
| LOST TRAIL REST AREA | MISSOULA, MT | 701 | 40 | — |
| GARDINER PARK CO WATER DIST | GARDINER, MT | 700 | 151 | — |
| ST IGNATIUS TOWN OF | ST IGNATIUS, MT | 700 | 168 | — |
| FRENCHTOWN ELEMENTARY SCHOOL DIST 40 | FRENCHTOWN, MT | 700 | 17 | — |
| EASTHAVEN BAPTIST CHURCH | KALISPELL, MT | 700 | 10 | — |
| LOST TRAIL POWDER MTN SULA | CONNER, MT | 690 | 61 | — |
| WOODS BAY WATER AND SEWER DISTRICT | BIGFORK, MT | 685 | 106 | — |
| ELK GROVE WATER | BOZEMAN, MT | 672 | 16 | — |