Ctwc - Unionville System
PWSID CT0520011 · Clinton, Connecticut · serves 14,693 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 7 ppt | — | 9/19/2023 |
| PFOA | 6 ppt | 4 ppt | 9/19/2023 |
| PFOS | 6 ppt | 4 ppt | 9/19/2023 |
| PFBA | 5 ppt | — | 6/12/2023 |
| PFOS | 5 ppt | 4 ppt | 6/12/2023 |
| PFOA | 4 ppt | 4 ppt | 6/12/2023 |
| PFHxA | 4 ppt | — | 9/19/2023 |
| PFPeA | 4 ppt | — | 9/19/2023 |
| PFPeA | 3 ppt | — | 6/12/2023 |
| PFHxA | 3 ppt | — | 6/12/2023 |
| PFHxS | 3 ppt | 10 ppt | 6/12/2023 |
| PFHxS | 3 ppt | 10 ppt | 9/19/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-05-01 | Groundwater Rule | TT | Yes | Resolved |