City Of Lancaster
PWSID PA7360058 · Lancaster, Pennsylvania · serves 120,000 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxA | 28.8 ppt | — | 9/5/2024 |
| PFOA | 23.8 ppt | 4 ppt | 9/5/2024 |
| PFPeA | 22.3 ppt | — | 9/5/2024 |
| PFHxA | 18.1 ppt | — | 12/6/2023 |
| PFBA | 15.4 ppt | — | 9/5/2024 |
| PFOA | 14.1 ppt | 4 ppt | 12/6/2023 |
| PFPeA | 12.8 ppt | — | 12/6/2023 |
| PFHxA | 11.2 ppt | — | 6/6/2024 |
| PFOA | 11.2 ppt | 4 ppt | 6/6/2024 |
| PFBA | 10.1 ppt | — | 6/6/2024 |
| PFBA | 10 ppt | — | 12/6/2023 |
| PFBS | 9.8 ppt | — | 9/5/2024 |
| PFOA | 9.5 ppt | 4 ppt | 3/6/2024 |
| PFPeA | 8.9 ppt | — | 6/6/2024 |
| PFHxA | 8.5 ppt | — | 3/6/2024 |
| PFHpA | 8.1 ppt | — | 9/5/2024 |
| PFPeA | 6.7 ppt | — | 3/6/2024 |
| PFBS | 5.6 ppt | — | 6/6/2024 |
| PFBS | 5.5 ppt | — | 12/6/2023 |
| PFHpA | 5.1 ppt | — | 12/6/2023 |
| PFBS | 4.2 ppt | — | 3/6/2024 |
| PFHpA | 3.9 ppt | — | 6/6/2024 |
| PFHpA | 3.2 ppt | — | 3/6/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-05-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2024-09-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2024-04-01 | TTHM | MCL | Yes | Resolved |