Public Water Systems
160 active public water systems in 08, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Belcourt-Turtle Mtn Rural Water System | Belcourt, 08 | 13,500 | 86 | Clean |
| Pine Ridge Water System | Pine Ridge, 08 | 7,482 | 114 | Clean |
| Standing Rock Rural Water System | Fort Yates, 08 | 6,839 | 82 | Clean |
| Kyle Water System | Pine Ridge, 08 | 6,526 | 35 | Clean |
| Sicangu Mni Wiconi Rural Water System | Rosebud, 08 | 5,610 | 43 | Clean |
| Rosebud Rural Water System | Rosebud, 08 | 5,500 | 132 | Clean |
| Town of Browning | Browning, 08 | 4,671 | 12 | Clean |
| Spirit Lake Water Management RWS | St. Michael, 08 | 4,400 | 53 | Clean |
| Oglala RWS Pipeline | Pine Ridge, 08 | 3,562 | 53 | Clean |
| Uriah Heeps Spring Water System | Ft. Duchesne, 08 | 3,550 | 503 | Clean |
| Fort Washakie | Fort Washakie, 08 | 3,520 | 406 | Detected |
| Arapahoe Comm Water System | Ethete, 08 | 3,100 | 585 | - |
| Poplar, City Of | Poplar, 08 | 3,025 | 18 | - |
| Wolf Point City Of | Wolf Point, 08 | 3,000 | 0 | - |
| Lame Deer Water System | Lame Deer, 08 | 2,605 | 155 | - |
| New Town, City Of | New Town, 08 | 2,528 | 10 | - |
| St. Francis | Rosebud, 08 | 2,450 | 39 | Clean |
| Dakota Magic Casino | Hankinson, 08 | 2,360 | 309 | - |
| Wanblee East | Pine Ridge, 08 | 2,179 | 8 | - |
| Lower Brule Rural Water Supply System | Lower Brule, 08 | 2,108 | 106 | - |
| Fort Belknap Agency Water System | Harlem, 08 | 2,100 | 575 | - |
| Towaoc Water System | Towoac, 08 | 2,020 | 98 | - |
| Rocky Boy's Rural Water | Box Elder, 08 | 2,000 | 130 | - |
| Ethete Water System | Fort Washakie, 08 | 1,950 | 639 | - |
| Assiniboine & Sioux Rural Water System | Poplar, 08 | 1,726 | 18 | - |
| White Horse Creek Water System | Pine Ridge, 08 | 1,690 | 1 | - |
| Ignacio-Southern Ute Rural Water System | Ignacio, 08 | 1,527 | 14 | - |
| Two Medicine Water - East Glacier | Browning, 08 | 1,504 | 64 | - |
| Little Shell | New Town, 08 | 1,500 | 15 | - |
| Mission Water System | Mission, 08 | 1,500 | 15 | Clean |
| Wolf Creek School | Batesland, 08 | 1,450 | 0 | - |
| Rocky Boy Agency Water System | Box Elder, 08 | 1,442 | 109 | - |
| Fort Thompson Water System | Fort Thompson, 08 | 1,357 | 224 | - |
| Crow Agency Water System | Crow Agency, 08 | 1,300 | 254 | - |
| Four Bears Water System | New Town, 08 | 1,200 | 191 | - |
| Old Agency Water System | Agency Village, 08 | 1,180 | 31 | - |
| Mandaree Water Plant | New Town, 08 | 1,034 | 72 | - |
| White Shield Water Treatment Plant | New Town, 08 | 952 | 56 | - |
| Bison Range | Pablo, 08 | 915 | 0 | - |
| Parshall, City Of | Parshall, 08 | 903 | 21 | - |
| Hays/White Cow Canyon WS | Harlem, 08 | 840 | 158 | - |
| Whiterocks Water System | Ft. Duchesne, 08 | 812 | 475 | - |
| Wanblee Water System | Pine Ridge, 08 | 773 | 55 | - |
| Parshall-Lucky Mound | New Town, 08 | 720 | 14 | - |
| St Mary KOA | Browing, 08 | 700 | 3 | - |
| Arapahoe Industrial Park | Fort Washakie, 08 | 650 | 295 | - |
| Bedrockbabb Water System | Browning, 08 | 645 | 43 | - |
| Twin Buttes Water Plant | New Town, 08 | 621 | 117 | - |
| Blackfeet Community Hospital | Browning, 08 | 600 | 42 | - |
| Busby Community Water System | Lame Deer, 08 | 535 | 64 | - |
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