Aquarion-Greenwich
PWSID CT0570011 · Shelton, Connecticut · serves 53,297 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 5.6 ppt | 4 ppt | 1/7/2025 |
| PFOA | 5.3 ppt | 4 ppt | 4/7/2025 |
| PFOA | 5.3 ppt | 4 ppt | 4/7/2025 |
| PFOA | 5.2 ppt | 4 ppt | 10/7/2024 |
| PFOA | 5.2 ppt | 4 ppt | 1/6/2025 |
| PFOA | 5.1 ppt | 4 ppt | 4/8/2025 |
| PFOA | 4.7 ppt | 4 ppt | 8/6/2025 |
| PFOA | 4.6 ppt | 4 ppt | 8/5/2025 |
| PFOA | 4.5 ppt | 4 ppt | 1/6/2025 |
| PFOA | 4.4 ppt | 4 ppt | 10/8/2024 |
| PFOS | 4.1 ppt | 4 ppt | 4/7/2025 |
| PFHxA | 4 ppt | — | 4/8/2025 |
| PFOS | 4 ppt | 4 ppt | 4/7/2025 |
| PFOA | 4 ppt | 4 ppt | 8/6/2025 |
| PFPeA | 3.8 ppt | — | 4/8/2025 |
| PFPeA | 3.7 ppt | — | 1/7/2025 |
| PFHxA | 3.7 ppt | — | 1/7/2025 |
| PFHxA | 3.1 ppt | — | 8/5/2025 |
| PFHxA | 3.1 ppt | — | 1/6/2025 |
| PFHxA | 3 ppt | — | 10/7/2024 |
| PFHxA | 3 ppt | — | 4/7/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-06-01 | Chlorite | MR | No | Resolved |