Frederick
PWSID OK1011401 · Frederick, Oklahoma · serves 3,940 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 12.5 ppt | — | 12/4/2023 |
| PFBA | 11.6 ppt | — | 12/18/2023 |
| PFBA | 9.5 ppt | — | 8/14/2023 |
| PFHxS | 3 ppt | 10 ppt | 8/14/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-01 | Asbestos | MCL | Yes | Archived |
| 2026-01-01 | Asbestos | MCL | Yes | Archived |
| 2025-10-01 | Asbestos | MCL | Yes | Archived |
| 2025-07-01 | Asbestos | MCL | Yes | Archived |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | TT | Yes | Resolved |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | RPT | No | Resolved |
| 2024-04-01 | TTHM | MCL | Yes | Archived |
| 2023-10-01 | TTHM | MCL | Yes | Archived |
| 2023-07-01 | TTHM | MCL | Yes | Archived |
| 2023-07-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2023-04-01 | CARBON, TOTAL | TT | Yes | Archived |
| 2023-01-01 | CARBON, TOTAL | TT | Yes | Archived |