What is PFAS?
Water suppliers
PFAS value per supplier, 2023–2025. EPA limit — 4 ppt (0.004 µg/L) for PFOA and PFOS, set in 2024. Suppliers that detected PFOA or PFOS
are highlighted and listed first. “Not detected” means the contaminant was measured but
not found.
| Supplier | City | Population | PFAS (ug/L) |
|---|---|---|---|
| Fargo City of | Fargo | 120,762 | Not detected |
| Bismarck City of | Bismarck | 72,417 | Not detected |
| Grand Forks Regional Wtp | Grand Forks | 57,339 | Not detected |
| Minot City of | Minot | 48,743 | Not detected |
| West Fargo City of | West Fargo | 34,858 | Not detected |
| Williston City of | Williston | 26,426 | Not detected |
| Dickinson City of | Dickinson | 25,679 | Not detected |
| Mandan City of | Mandan | 21,769 | Not detected |
| Jamestown City of | Jamestown | 15,427 | Not detected |
| Belcourt-Turtle Mtn Rural Water System | Belcourt | 13,500 | Not detected |
| South Central Rwd North Burleigh | Bismarck | 10,400 | Not detected |
| Southwest Water Authority | Dickinson | 8,537 | Not detected |
| Wahpeton City of | Wahpeton | 7,766 | Not detected |
| North Prairie Rwd-System 1&2 | Minot | 7,748 | Not detected |
| Devils Lake City of | Devils Lake | 7,141 | Not detected |
| Standing Rock Rural Water System | Fort Yates | 6,839 | Not detected |
| Valley City City of | Valley City | 6,585 | Not detected |
| Watford City City of | Watford City | 6,390 | Not detected |
| East Central Regional Wd-Gf | Thompson | 5,995 | Not detected |
| Stutsman Rural Water District | Jamestown | 5,550 | Not detected |
| Greater Ramsey Water District | Devils Lake | 5,280 | Not detected |
| Northwest Rural Water District | Williston | 5,102 | Not detected |
| Barnes Rural Water District | Valley City | 4,938 | Not detected |
| Spirit Lake Water Management Rws | St. Michael | 4,400 | Not detected |
| Missouri West Water System | Mandan | 4,303 | Not detected |
| Grafton City of | Grafton | 4,284 | Not detected |
| Lincoln City of | Lincoln | 4,257 | Not detected |
| Cass Rural Water District Fargo | Kindred | 4,242 | Not detected |
| Southeast Wud (East) | Abercrombie | 4,225 | Not detected |
| Omnd Water Treatment Plant | — | 4,168 | Not detected |
| South Central Regional Water District | Bismarck | 3,700 | Not detected |
| Cass Rural Water District-Phase I | Kindred | 3,658 | Not detected |
| South Central Rwd-Emmons | — | 3,650 | Not detected |
| Central Plains Water District | Fessenden | 3,504 | Not detected |
| Agassiz Water Users District | Gilby | 3,438 | Not detected |
| Northeast Rwd- North Valley Branch | Cavalier | 3,422 | Not detected |
| Beulah City of | Beulah | 3,058 | Not detected |
| Cass Rural Water District-Phase Ii | Kindred | 1,700 | Not detected |
| Larimore City of | Larimore | 1,346 | Not detected |
| Beach City of | Beach | 981 | Not detected |
| Grenora City of | Grenora | 244 | Not detected |