St John Water District 1
PWSID LA1095003 · Laplace, Louisiana · serves 10,484 people · surface water source
B
Good
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 6 ppt | — | 9/23/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-09-27 | Lead and Copper Rule | MR | No | Resolved |