AQUARION-EASTERN FAIRFIELD COUNTY
PWSID: CT0150011 · SHELTON, CT · Serving 351,756 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
10.9 ppt
Highest single detection
2023-07-24
Latest sample date
complete
Data completeness
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 406 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| ADONA | ND | — | Below MRL | 2023-10-02 |
| PFDoA | ND | — | Below MRL | 2023-07-24 |
| PFPeS | ND | — | Below MRL | 2023-07-24 |
| NFDHA | ND | — | Below MRL | 2023-07-24 |
| PFEESA | ND | — | Below MRL | 2023-07-24 |
Violation history(9 violations, all resolved)
Monitoring & Reporting - PFOA(PFOA)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxA
Violation details
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