City Of Patterson Water System
PWSID LA1101006 · Patterson, Louisiana · serves 8,456 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 6.1 ppt | — | 4/8/2024 |
| PFBA | 5.9 ppt | — | 10/14/2024 |
| PFPeA | 3.2 ppt | — | 10/14/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-01 | TTHM | MCL | Yes | Archived |
| 2026-01-01 | TTHM | MCL | Yes | Archived |
| 2025-10-01 | TTHM | MCL | Yes | Archived |
| 2025-07-01 | TTHM | MCL | Yes | Archived |
| 2025-04-29 | Public Notice | Other | No | Resolved |
| 2025-04-01 | TTHM | MCL | Yes | Archived |
| 2025-01-01 | TTHM | MCL | Yes | Archived |
| 2024-10-01 | TTHM | MCL | Yes | Archived |