Manville Wsc
PWSID TX2270033 · Coupland, Texas · serves 39,648 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFNA | 24.3 ppt | 10 ppt | 2/22/2023 |
| PFOS | 12.4 ppt | 4 ppt | 2/22/2023 |
| PFBS | 10 ppt | — | 2/22/2023 |
| PFOS | 9.6 ppt | 4 ppt | 8/30/2023 |
| PFBS | 9.2 ppt | — | 8/30/2023 |
| PFPeA | 9.1 ppt | — | 2/22/2023 |
| PFNA | 8.8 ppt | 10 ppt | 8/30/2023 |
| PFHxA | 8.7 ppt | — | 2/22/2023 |
| PFNA | 8 ppt | 10 ppt | 2/22/2023 |
| PFBA | 7.4 ppt | — | 2/22/2023 |
| PFHxS | 7 ppt | 10 ppt | 2/22/2023 |
| PFPeA | 6.8 ppt | — | 2/22/2023 |
| PFHxS | 6.7 ppt | 10 ppt | 8/30/2023 |
| PFPeA | 6.1 ppt | — | 8/30/2023 |
| PFOA | 5.9 ppt | 4 ppt | 2/22/2023 |
| PFPeA | 5.9 ppt | — | 8/30/2023 |
| PFBS | 5.8 ppt | — | 8/30/2023 |
| PFBA | 5.5 ppt | — | 8/30/2023 |
| PFOS | 5.4 ppt | 4 ppt | 2/22/2023 |
| PFBS | 5.3 ppt | — | 8/30/2023 |
| PFBS | 5.1 ppt | — | 2/22/2023 |
| PFOS | 5.1 ppt | 4 ppt | 8/30/2023 |
| PFBA | 5.1 ppt | — | 2/22/2023 |
| PFOS | 4.9 ppt | 4 ppt | 8/30/2023 |
| PFBS | 4.7 ppt | — | 2/22/2023 |
| PFHxS | 4.5 ppt | 10 ppt | 2/22/2023 |
| PFHxS | 4.5 ppt | 10 ppt | 8/30/2023 |
| PFBS | 4.4 ppt | — | 2/22/2023 |
| PFHpA | 4.3 ppt | — | 2/22/2023 |
| PFHxS | 4.3 ppt | 10 ppt | 8/30/2023 |
| PFHxA | 4.2 ppt | — | 8/30/2023 |
| PFOS | 4.1 ppt | 4 ppt | 2/22/2023 |
| PFOS | 4 ppt | 4 ppt | 2/22/2023 |
| PFHxS | 3.9 ppt | 10 ppt | 2/22/2023 |
| PFHxA | 3.9 ppt | — | 2/22/2023 |
| PFHxS | 3.6 ppt | 10 ppt | 2/22/2023 |
| PFPeA | 3.5 ppt | — | 2/22/2023 |
| PFHxA | 3.4 ppt | — | 2/22/2023 |
| PFBS | 3 ppt | — | 8/30/2023 |
| PFPeA | 3 ppt | — | 8/30/2023 |
| PFPeA | 3 ppt | — | 8/30/2023 |
| PFUnA | 2.7 ppt | — | 2/22/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-03-02 | TTHM | MR | No | Resolved |
| 2026-02-14 | Public Notice | Other | No | Resolved |
| 2025-10-01 | TTHM | MCL | Yes | Resolved |
| 2025-07-01 | TTHM | MCL | Yes | Resolved |
| 2025-06-05 | TTHM | MR | No | Resolved |
| 2025-04-09 | E. COLI | MR | No | Resolved |
| 2025-04-01 | TTHM | MCL | Yes | Resolved |
| 2025-01-01 | TTHM | MCL | Yes | Resolved |
| 2024-10-16 | E. COLI | MR | No | Resolved |