Coraopolis Water & Sewer Auth
PWSID PA5020010 · Coraopolis, Pennsylvania · serves 5,804 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 18.8 ppt | 4 ppt | 3/20/2023 |
| PFBS | 14.6 ppt | — | 3/20/2023 |
| PFBS | 13 ppt | — | 9/27/2023 |
| PFHxS | 12.6 ppt | 10 ppt | 3/20/2023 |
| PFHxS | 12 ppt | 10 ppt | 9/27/2023 |
| PFHxS | 9.3 ppt | 10 ppt | 3/20/2023 |
| PFOS | 8.1 ppt | 4 ppt | 9/27/2023 |
| PFOS | 7.8 ppt | 4 ppt | 3/20/2023 |
| PFOS | 7.6 ppt | 4 ppt | 7/25/2023 |
| PFBA | 6.2 ppt | — | 9/27/2023 |
| PFBA | 6 ppt | — | 3/20/2023 |
| PFOA | 5.2 ppt | 4 ppt | 9/27/2023 |
| PFOS | 5.2 ppt | 4 ppt | 9/26/2023 |
| PFOA | 4.1 ppt | 4 ppt | 3/20/2023 |
| PFHxS | 3.4 ppt | 10 ppt | 7/25/2023 |
| PFHxA | 3.2 ppt | — | 7/25/2023 |
| PFPeA | 3.1 ppt | — | 9/27/2023 |
| PFHxA | 3.1 ppt | — | 3/20/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-01 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2024-04-01 | TTHM | MR | No | Resolved |
| 2022-08-01 | Groundwater Rule | MR | No | Resolved |