Oak Trail Shores
PWSID TX1110004 · Austin, Texas · serves 5,676 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 7.5 ppt | — | 8/7/2024 |
| PFBA | 7 ppt | — | 5/13/2024 |
| PFBA | 6.3 ppt | — | 2/7/2024 |
| PFHxS | 3.6 ppt | 10 ppt | 8/7/2024 |
| PFHxS | 3.2 ppt | 10 ppt | 5/13/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-02-22 | Public Notice | Other | No | Resolved |
| 2025-01-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2024-07-05 | Public Notice | Other | No | Resolved |
| 2024-07-05 | Public Notice | Other | No | Resolved |
| 2024-06-18 | TTHM | MR | No | Resolved |
| 2024-04-01 | TTHM | MCL | Yes | Resolved |
| 2024-04-01 | TTHM | MCL | Yes | Resolved |
| 2024-03-18 | Public Notice | Other | No | Resolved |
| 2024-02-26 | Public Notice | Other | No | Resolved |
| 2024-02-24 | Public Notice | Other | No | Resolved |
| 2023-12-31 | Public Notice | Other | No | Resolved |
| 2023-12-02 | Public Notice | Other | No | Resolved |
| 2023-12-01 | Public Notice | Other | No | Resolved |
| 2023-11-30 | Public Notice | Other | No | Resolved |
| 2023-11-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-11-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-10-01 | Public Notice | Other | No | Resolved |
| 2023-10-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-10-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2023-09-11 | Public Notice | Other | No | Resolved |
| 2023-09-11 | Public Notice | Other | No | Resolved |
| 2023-08-01 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | Resolved |
| 2022-12-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2022-12-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2022-10-01 | CARBON, TOTAL | MR | No | Resolved |