AQUARION-VALLEY
PWSID: CT1240011 · SHELTON, CT · Serving 13,080 people
Type: CWSOwner: PSource: SW
Settlement eligible
Settlement details
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Upgrade to ProExceeds MCL
One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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Upgrade to ProDetection summary
8.1 ppt
Highest single detection
2025-08-06
Latest sample date
complete
Data completeness
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 290 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFBS | ND | — | Below MRL | 2025-08-06 |
| NEtFOSAA | ND | — | Below MRL | 2024-11-05 |
| PFTrDA | ND | — | Below MRL | 2024-11-05 |
| PFTA | ND | — | Below MRL | 2024-11-05 |
| PFHpS | ND | — | Below MRL | 2024-11-05 |