Tahlequah Pwa
PWSID OK1021701 · Tahlequah, Oklahoma · serves 14,458 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBS | 5.7 ppt | — | 9/19/2023 |
| PFBS | 4.6 ppt | — | 12/5/2023 |
| PFPeA | 4.4 ppt | — | 12/5/2023 |
| PFHxA | 4.2 ppt | — | 12/5/2023 |
| PFBS | 3.7 ppt | — | 3/5/2024 |
| PFBS | 3.5 ppt | — | 6/6/2023 |
| PFBS | 3.1 ppt | — | 10/17/2023 |
| PFPeA | 3 ppt | — | 10/17/2023 |
| PFPeA | 3 ppt | — | 9/19/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | TT | Yes | Resolved |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | RPT | No | Resolved |
| 2023-01-01 | Asbestos | MR | No | Resolved |
| 2022-10-01 | Total Haloacetic Acids (HAA5) | MCL | Yes | Resolved |
| 2022-06-30 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2022-04-01 | Total Haloacetic Acids (HAA5) | MCL | Yes | Resolved |