Aquarion-Valley
PWSID CT1240011 · Shelton, Connecticut · serves 13,080 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 8.1 ppt | 4 ppt | 2/5/2025 |
| PFOS | 6.9 ppt | 4 ppt | 2/5/2025 |
| PFPeA | 6.8 ppt | — | 2/5/2025 |
| PFOA | 6.5 ppt | 4 ppt | 5/7/2025 |
| PFHxA | 4.9 ppt | — | 2/5/2025 |
| PFOA | 4.7 ppt | 4 ppt | 11/3/2025 |
| PFPeA | 4.7 ppt | — | 11/5/2024 |
| PFBS | 4.6 ppt | — | 2/5/2025 |
| PFOA | 4.5 ppt | 4 ppt | 11/5/2024 |
| PFOS | 4.4 ppt | 4 ppt | 11/3/2025 |
| PFOS | 4.2 ppt | 4 ppt | 11/5/2024 |
| PFPeA | 4.1 ppt | — | 11/3/2025 |
| PFOA | 4.1 ppt | 4 ppt | 11/5/2024 |
| PFHpA | 3.6 ppt | — | 2/5/2025 |
| PFBS | 3.4 ppt | — | 11/3/2025 |
| PFHxA | 3.4 ppt | — | 11/5/2024 |
| PFBS | 3.4 ppt | — | 11/5/2024 |
| PFHxA | 3.2 ppt | — | 11/3/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉