Northwest Rural Water District
PWSID ND5301079 · Williston, North Dakota · serves 5,102 people · surface water source
B
Good
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 6.3 ppt | — | 5/16/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-07-01 | TTHM | MR | No | Resolved |
| 2023-07-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |