Aquarion-Stamford
PWSID CT1350011 · Shelton, Connecticut · serves 119,214 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 4.3 ppt | 4 ppt | 12/2/2025 |
| PFOA | 4.2 ppt | 4 ppt | 3/5/2025 |
| PFOA | 4.2 ppt | 4 ppt | 9/10/2025 |
| PFPeA | 3.1 ppt | — | 12/2/2025 |
| PFHxA | 3 ppt | — | 12/2/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2021-12-30 | Lead and Copper Rule | MR | No | Resolved |