Public Water Systems
368 active public water systems in ND, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Fargo City Of | Fargo, ND | 120,762 | 30 | Clean |
| Bismarck City Of | Bismarck, ND | 72,417 | 0 | Clean |
| Grand Forks Regional WTP | Grand Forks, ND | 57,339 | 21 | Detected |
| Minot City Of | Minot, ND | 48,743 | 12 | Clean |
| West Fargo City Of | West Fargo, ND | 34,858 | 3 | Clean |
| Williston City Of | Williston, ND | 26,426 | 42 | Clean |
| Dickinson City Of | Dickinson, ND | 25,679 | 27 | Clean |
| Mandan City Of | Mandan, ND | 21,769 | 0 | Clean |
| Jamestown City Of | Jamestown, ND | 15,427 | 13 | Clean |
| South Central RWD North Burleigh | Bismarck, ND | 10,400 | 0 | Clean |
| Southwest Water Authority | Dickinson, ND | 8,537 | 2 | Clean |
| Wahpeton City Of | Wahpeton, ND | 7,766 | 9 | Clean |
| North Prairie RWD-System 1&2 | Minot, ND | 7,748 | 1 | Detected |
| Devils Lake City Of | Devils Lake, ND | 7,141 | 29 | Clean |
| Valley City City Of | Valley City, ND | 6,585 | 27 | Clean |
| Watford City City Of | Watford City, ND | 6,390 | 37 | Clean |
| East Central Regional WD-Gf | Thompson, ND | 5,995 | 9 | Clean |
| Stutsman Rural Water District | Jamestown, ND | 5,550 | 8 | Clean |
| Greater Ramsey Water District | Devils Lake, ND | 5,280 | 9 | Clean |
| Northwest Rural Water District | Williston, ND | 5,102 | 26 | Detected |
| Barnes Rural Water District | Valley City, ND | 4,938 | 0 | Clean |
| Missouri West Water System | Mandan, ND | 4,303 | 2 | Clean |
| Grafton City Of | Grafton, ND | 4,284 | 7 | Detected |
| Lincoln City Of | Lincoln, ND | 4,257 | 29 | Clean |
| Cass Rural Water District Fargo | Kindred, ND | 4,242 | 0 | Detected |
| Southeast Wud (East) | Mantador, ND | 4,225 | 2 | Clean |
| Omnd Water Treatment Plant | Dickinson, ND | 4,168 | 4 | Clean |
| McKenzie County Wrd | Watford City, ND | 3,895 | 36 | - |
| South Central Regional Water District | Bismarck, ND | 3,700 | 0 | Detected |
| Cass Rural Water District-Phase I | Kindred, ND | 3,658 | 3 | Clean |
| South Central RWD-Emmons | Bismarck, ND | 3,650 | 0 | Clean |
| Central Plains Water District | Fessenden, ND | 3,504 | 19 | Detected |
| Agassiz Water Users District | Gilby, ND | 3,438 | 5 | Clean |
| Northeast RWD- North Valley Branch | Cavalier, ND | 3,422 | 6 | Clean |
| Beulah City Of | Beulah, ND | 3,058 | 16 | Clean |
| Walsh Rural Water District | Grafton, ND | 3,000 | 1 | - |
| Rugby City Of | Rugby, ND | 2,876 | 17 | - |
| East Central Regional WD-Traill | Thompson, ND | 2,800 | 16 | - |
| North Prairie RWD-System III | Minot, ND | 2,742 | 3 | - |
| Casselton City Of | Casselton, ND | 2,513 | 11 | - |
| Tri-County Water District | Petersburg, ND | 2,501 | 7 | - |
| Northeast RWD-Langdon Branch | Cavalier, ND | 2,450 | 17 | - |
| Hazen City Of | Hazen, ND | 2,411 | 2 | - |
| Bottineau City Of | Bottineau, ND | 2,211 | 20 | - |
| Tioga City Of | Tioga, ND | 2,202 | 7 | - |
| Lisbon City Of | Lisbon, ND | 2,154 | 6 | - |
| Carrington City Of | Carrington, ND | 2,065 | 8 | - |
| Langdon City Of | Langdon, ND | 1,878 | 36 | - |
| Mayville City Of | Mayville, ND | 1,858 | 31 | - |
| Oakes City Of | Oakes, ND | 1,856 | 26 | - |
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