PFAS Comply

AQUARION-EASTERN FAIRFIELD COUNTY

PWSID: CT0150011 · SHELTON, CT · Serving 351,756 people

Type: CWSOwner: PSource: SW
Settlement eligible
May qualify for 3M/DuPont settlement funds
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Exceeds MCL

One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.

Key contaminants vs MCL

PFOA10.9 ppt(MCL: 4 ppt)
PFOS6.6 ppt(MCL: 4 ppt)

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Detection summary

7
PFAS compounds detected
10.9 ppt
Highest single detection
2023-07-24
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
ADONAND—Below MRL2023-10-02
PFDoAND—Below MRL2023-07-24
PFPeSND—Below MRL2023-07-24
NFDHAND—Below MRL2023-07-24
PFEESAND—Below MRL2023-07-24
PFMBAND—Below MRL2023-07-24
6:2 FTSND—Below MRL2023-10-02
PFBAND—Below MRL2023-10-02
PFHxAND—Below MRL2023-10-02
PFHpAND—Below MRL2023-10-02
PFHxSND10Below MRL2023-10-02
PFNAND10Below MRL2023-10-02
PFOSND4Below MRL2023-10-02
PFTAND—Below MRL2023-10-02
PFDAND—Below MRL2023-10-02
HFPO-DAND10Below MRL2023-10-02
PFUnAND—Below MRL2023-10-02
11Cl-PF3OUdSND—Below MRL2023-10-02
9Cl-PF3ONSND—Below MRL2023-10-02
HFPO-DAND10Below MRL2023-07-24
PFMPAND—Below MRL2023-07-24
8:2 FTSND—Below MRL2023-07-24
4:2 FTSND—Below MRL2023-07-24
PFHpSND—Below MRL2023-07-24
ADONAND—Below MRL2023-07-24
9Cl-PF3ONSND—Below MRL2023-07-24
11Cl-PF3OUdSND—Below MRL2023-07-24
PFNAND10Below MRL2023-07-24
PFDAND—Below MRL2023-07-24
6:2 FTSND—Below MRL2023-07-24
PFUnAND—Below MRL2023-07-24
PFHxSND10Below MRL2023-07-24
PFBSND—Below MRL2023-07-24
NMeFOSAAND—Below MRL2023-07-24
PFTrDAND—Below MRL2023-07-24
PFTAND—Below MRL2023-07-24
lithiumND—Below MRL2023-07-24
NEtFOSAAND—Below MRL2023-07-24
8:2 FTSND—Below MRL2023-07-24
PFMPAND—Below MRL2023-07-24
PFMBAND—Below MRL2023-07-24
PFEESAND—Below MRL2023-07-24
NFDHAND—Below MRL2023-07-24
PFPeSND—Below MRL2023-07-24
PFHpSND—Below MRL2023-07-24
PFDoAND—Below MRL2023-07-24
PFDAND—Below MRL2023-07-24
4:2 FTSND—Below MRL2023-07-24
lithiumND—Below MRL2023-07-24
PFHpAND—Below MRL2023-07-24
11Cl-PF3OUdSND—Below MRL2023-07-24
PFUnAND—Below MRL2023-07-24
PFTrDAND—Below MRL2023-07-24
6:2 FTSND—Below MRL2023-07-24
PFTAND—Below MRL2023-07-24
NEtFOSAAND—Below MRL2023-07-24
PFHxSND10Below MRL2023-07-24
PFNAND10Below MRL2023-07-24
9Cl-PF3ONSND—Below MRL2023-07-24
ADONAND—Below MRL2023-07-24
HFPO-DAND10Below MRL2023-07-24
NMeFOSAAND—Below MRL2023-07-24
PFMBAND—Below MRL2023-01-17
PFHpSND—Below MRL2023-01-17
PFHxSND10Below MRL2023-01-17
NMeFOSAAND—Below MRL2023-01-17
NEtFOSAAND—Below MRL2023-01-17
PFTAND—Below MRL2023-01-17
PFTrDAND—Below MRL2023-01-17
ADONAND—Below MRL2023-01-17
PFHxAND—Below MRL2023-01-17
PFUnAND—Below MRL2023-01-17
PFMPAND—Below MRL2023-01-17
PFPeSND—Below MRL2023-01-17
PFBSND—Below MRL2023-01-17
PFHpAND—Below MRL2023-01-17
PFNAND10Below MRL2023-01-17
PFDoAND—Below MRL2023-01-17
PFOAND4Below MRL2023-01-17
9Cl-PF3ONSND—Below MRL2023-01-17
PFDAND—Below MRL2023-01-17
HFPO-DAND10Below MRL2023-01-17
PFBAND—Below MRL2023-01-17
6:2 FTSND—Below MRL2023-01-17
4:2 FTSND—Below MRL2023-01-17
8:2 FTSND—Below MRL2023-01-17
PFEESAND—Below MRL2023-01-17
NFDHAND—Below MRL2023-01-17
lithiumND—Below MRL2023-01-17
PFPeAND—Below MRL2023-01-17
11Cl-PF3OUdSND—Below MRL2023-01-17
PFOSND4Below MRL2023-01-17
PFHpSND—Below MRL2023-04-03
4:2 FTSND—Below MRL2023-04-03
8:2 FTSND—Below MRL2023-04-03
PFMPAND—Below MRL2023-04-03
PFTAND—Below MRL2023-04-03
PFMBAND—Below MRL2023-04-03
6:2 FTSND—Below MRL2023-04-03
PFPeSND—Below MRL2023-04-03
PFPeAND—Below MRL2023-04-03
PFUnAND—Below MRL2023-04-03
PFTrDAND—Below MRL2023-04-03
NEtFOSAAND—Below MRL2023-04-03
NMeFOSAAND—Below MRL2023-04-03
NFDHAND—Below MRL2023-04-03
9Cl-PF3ONSND—Below MRL2023-04-03
PFHxAND—Below MRL2023-04-03
PFDoAND—Below MRL2023-04-03
PFDAND—Below MRL2023-04-03
PFEESAND—Below MRL2023-04-03
11Cl-PF3OUdSND—Below MRL2023-04-03
lithiumND—Below MRL2023-04-03
ADONAND—Below MRL2023-04-03
HFPO-DAND10Below MRL2023-04-03
PFBAND—Below MRL2023-04-03
PFOSND4Below MRL2023-04-03
PFNAND10Below MRL2023-04-03
PFHxSND10Below MRL2023-04-03
PFHpAND—Below MRL2023-04-03
PFBSND—Below MRL2023-04-03
PFOAND4Below MRL2023-04-03
ADONAND—Below MRL2023-07-24
HFPO-DAND10Below MRL2023-07-24
6:2 FTSND—Below MRL2023-07-24
4:2 FTSND—Below MRL2023-07-24
8:2 FTSND—Below MRL2023-07-24
PFMPAND—Below MRL2023-07-24
NFDHAND—Below MRL2023-07-24
PFMBAND—Below MRL2023-07-24
NMeFOSAAND—Below MRL2023-07-24
PFHpSND—Below MRL2023-07-24
9Cl-PF3ONSND—Below MRL2023-07-24
PFPeAND—Below MRL2023-07-24
PFNAND10Below MRL2023-07-24
lithiumND—Below MRL2023-07-24
PFEESAND—Below MRL2023-07-24
PFTAND—Below MRL2023-07-24
PFTrDAND—Below MRL2023-07-24
PFBSND—Below MRL2023-07-24
NEtFOSAAND—Below MRL2023-07-24
PFHxSND10Below MRL2023-07-24
11Cl-PF3OUdSND—Below MRL2023-07-24
PFOSND4Below MRL2023-07-24
PFOAND4Below MRL2023-07-24
PFDAND—Below MRL2023-07-24
PFDoAND—Below MRL2023-07-24
PFHxAND—Below MRL2023-07-24
PFUnAND—Below MRL2023-07-24
PFHpAND—Below MRL2023-07-24
PFPeSND—Below MRL2023-07-24
PFMPAND—Below MRL2024-02-20
lithiumND—Below MRL2023-10-03
PFNAND10Below MRL2024-02-20
PFDoAND—Below MRL2024-02-20
PFHxAND—Below MRL2024-02-20
PFUnAND—Below MRL2024-02-20
11Cl-PF3OUdSND—Below MRL2024-02-20
9Cl-PF3ONSND—Below MRL2024-02-20
ADONAND—Below MRL2024-02-20
HFPO-DAND10Below MRL2024-02-20
PFBAND—Below MRL2024-02-20
6:2 FTSND—Below MRL2024-02-20
PFHxSND10Below MRL2024-02-20
8:2 FTSND—Below MRL2024-02-20
PFOSND4Below MRL2024-02-20
PFPeAND—Below MRL2024-02-20
PFMBAND—Below MRL2024-02-20
PFEESAND—Below MRL2024-02-20
NFDHAND—Below MRL2024-02-20
PFPeSND—Below MRL2024-02-20
PFHpSND—Below MRL2024-02-20
PFBSND—Below MRL2024-02-20
PFTAND—Below MRL2023-10-03
PFTrDAND—Below MRL2023-10-03
NEtFOSAAND—Below MRL2023-10-03
NMeFOSAAND—Below MRL2023-10-03
4:2 FTSND—Below MRL2024-02-20
PFHpAND—Below MRL2024-02-20
PFDAND—Below MRL2024-02-20
9Cl-PF3ONSND—Below MRL2023-01-17
8:2 FTSND—Below MRL2023-01-17
PFEESAND—Below MRL2023-01-17
NFDHAND—Below MRL2023-01-17
PFOSND4Below MRL2023-01-17
PFHpAND—Below MRL2023-01-17
4:2 FTSND—Below MRL2023-01-17
11Cl-PF3OUdSND—Below MRL2023-01-17
PFBSND—Below MRL2023-01-17
lithiumND—Below MRL2023-01-17
PFTAND—Below MRL2023-01-17
PFTrDAND—Below MRL2023-01-17
NEtFOSAAND—Below MRL2023-01-17
NMeFOSAAND—Below MRL2023-01-17
PFDoAND—Below MRL2023-01-17
PFPeAND—Below MRL2023-01-17
PFDAND—Below MRL2023-01-17
PFNAND10Below MRL2023-01-17
6:2 FTSND—Below MRL2023-01-17
PFHxSND10Below MRL2023-01-17
PFHxAND—Below MRL2023-01-17
PFUnAND—Below MRL2023-01-17
PFOAND4Below MRL2023-01-17
PFMBAND—Below MRL2023-01-17
PFPeSND—Below MRL2023-01-17
PFHpSND—Below MRL2023-01-17
ADONAND—Below MRL2023-01-17
HFPO-DAND10Below MRL2023-01-17
PFBAND—Below MRL2023-01-17
PFMPAND—Below MRL2023-01-17
PFPeAND—Below MRL2023-04-03
NFDHAND—Below MRL2023-04-03
PFMBAND—Below MRL2023-04-03
PFMPAND—Below MRL2023-04-03
PFEESAND—Below MRL2023-04-03
PFPeSND—Below MRL2023-04-03
PFDAND—Below MRL2023-04-03
PFTAND—Below MRL2023-04-03
PFTrDAND—Below MRL2023-04-03
NEtFOSAAND—Below MRL2023-04-03
8:2 FTSND—Below MRL2023-04-03
PFHpSND—Below MRL2023-04-03
PFHxSND10Below MRL2023-04-03
lithiumND—Below MRL2023-04-03
NMeFOSAAND—Below MRL2023-04-03
PFBSND—Below MRL2023-04-03
PFHxAND—Below MRL2023-04-03
PFHpAND—Below MRL2023-04-03
4:2 FTSND—Below MRL2023-04-03
PFNAND10Below MRL2023-04-03
PFOSND4Below MRL2023-04-03
PFDoAND—Below MRL2023-04-03
PFUnAND—Below MRL2023-04-03
6:2 FTSND—Below MRL2023-04-03
PFBAND—Below MRL2023-04-03
PFOAND4Below MRL2023-04-03
HFPO-DAND10Below MRL2023-04-03
ADONAND—Below MRL2023-04-03
9Cl-PF3ONSND—Below MRL2023-04-03
11Cl-PF3OUdSND—Below MRL2023-04-03
PFHpSND—Below MRL2023-07-24
PFMPAND—Below MRL2023-07-24
PFPeAND—Below MRL2023-07-24
PFMBAND—Below MRL2023-07-24
PFEESAND—Below MRL2023-07-24
8:2 FTSND—Below MRL2023-07-24
PFPeSND—Below MRL2023-07-24
ADONAND—Below MRL2023-07-24
lithiumND—Below MRL2023-07-24
PFTAND—Below MRL2023-07-24
PFTrDAND—Below MRL2023-07-24
NEtFOSAAND—Below MRL2023-07-24
NMeFOSAAND—Below MRL2023-07-24
NFDHAND—Below MRL2023-07-24
PFOSND4Below MRL2023-07-24
9Cl-PF3ONSND—Below MRL2023-07-24
11Cl-PF3OUdSND—Below MRL2023-07-24
PFUnAND—Below MRL2023-07-24
PFHxAND—Below MRL2023-07-24
PFDoAND—Below MRL2023-07-24
PFBAND—Below MRL2023-07-24
PFOAND4Below MRL2023-07-24
4:2 FTSND—Below MRL2023-07-24
PFNAND10Below MRL2023-07-24
PFHxSND10Below MRL2023-07-24
PFHpAND—Below MRL2023-07-24
HFPO-DAND10Below MRL2023-07-24
PFBSND—Below MRL2023-07-24
6:2 FTSND—Below MRL2023-07-24
PFDAND—Below MRL2023-07-24
PFHpAND—Below MRL2023-10-03
lithiumND—Below MRL2023-10-03
PFHpSND—Below MRL2023-10-03
PFTAND—Below MRL2023-10-03
PFTrDAND—Below MRL2023-10-03
NEtFOSAAND—Below MRL2023-10-03
PFBSND—Below MRL2023-10-03
PFHxSND10Below MRL2023-10-03
PFNAND10Below MRL2023-10-03
PFOSND4Below MRL2023-10-03
PFOAND4Below MRL2023-10-03
PFDAND—Below MRL2023-10-03
PFDoAND—Below MRL2023-10-03
PFHxAND—Below MRL2023-10-03
PFUnAND—Below MRL2023-10-03
PFPeAND—Below MRL2023-10-03
NMeFOSAAND—Below MRL2023-10-03
11Cl-PF3OUdSND—Below MRL2023-10-03
PFEESAND—Below MRL2023-10-03
PFMBAND—Below MRL2023-10-03
NFDHAND—Below MRL2023-10-03
PFMPAND—Below MRL2023-10-03
PFPeSND—Below MRL2023-10-03
8:2 FTSND—Below MRL2023-10-03
4:2 FTSND—Below MRL2023-10-03
6:2 FTSND—Below MRL2023-10-03
PFBAND—Below MRL2023-10-03
HFPO-DAND10Below MRL2023-10-03
ADONAND—Below MRL2023-10-03
9Cl-PF3ONSND—Below MRL2023-10-03
PFUnAND—Below MRL2023-01-17
6:2 FTSND—Below MRL2023-01-17
PFBAND—Below MRL2023-01-17
HFPO-DAND10Below MRL2023-01-17
ADONAND—Below MRL2023-01-17
9Cl-PF3ONSND—Below MRL2023-01-17
11Cl-PF3OUdSND—Below MRL2023-01-17
4:2 FTSND—Below MRL2023-01-17
PFHxAND—Below MRL2023-01-17
PFDoAND—Below MRL2023-01-17
PFDAND—Below MRL2023-01-17
PFOAND4Below MRL2023-01-17
PFOSND4Below MRL2023-01-17
PFHxSND10Below MRL2023-01-17
PFBSND—Below MRL2023-01-17
8:2 FTSND—Below MRL2023-01-17
PFHpAND—Below MRL2023-01-17
PFNAND10Below MRL2023-01-17
PFPeAND—Below MRL2023-01-17
PFMBAND—Below MRL2023-01-17
lithiumND—Below MRL2023-01-17
PFMPAND—Below MRL2023-01-17
PFEESAND—Below MRL2023-01-17
NFDHAND—Below MRL2023-01-17
PFPeSND—Below MRL2023-01-17
PFHpSND—Below MRL2023-01-17
PFTAND—Below MRL2023-01-17
PFTrDAND—Below MRL2023-01-17
NEtFOSAAND—Below MRL2023-01-17
NMeFOSAAND—Below MRL2023-01-17
NMeFOSAAND—Below MRL2023-04-03
PFBSND—Below MRL2023-04-03
PFUnAND—Below MRL2023-04-03
PFOSND4Below MRL2023-04-03
PFHpAND—Below MRL2023-04-03
NEtFOSAAND—Below MRL2023-04-03
PFHxAND—Below MRL2023-04-03
PFDoAND—Below MRL2023-04-03
PFDAND—Below MRL2023-04-03
PFOAND4Below MRL2023-04-03
lithiumND—Below MRL2023-04-03
PFHxSND10Below MRL2023-04-03
NFDHAND—Below MRL2023-04-03
PFNAND10Below MRL2023-04-03
PFTAND—Below MRL2023-04-03
11Cl-PF3OUdSND—Below MRL2023-04-03
PFHpSND—Below MRL2023-04-03
PFPeSND—Below MRL2023-04-03
PFTrDAND—Below MRL2023-04-03
PFEESAND—Below MRL2023-04-03
PFMBAND—Below MRL2023-04-03
PFPeAND—Below MRL2023-04-03
8:2 FTSND—Below MRL2023-04-03
4:2 FTSND—Below MRL2023-04-03
6:2 FTSND—Below MRL2023-04-03
PFBAND—Below MRL2023-04-03
HFPO-DAND10Below MRL2023-04-03
ADONAND—Below MRL2023-04-03
PFMPAND—Below MRL2023-04-03
9Cl-PF3ONSND—Below MRL2023-04-03
PFMPAND—Below MRL2023-07-24
11Cl-PF3OUdSND—Below MRL2023-07-24
9Cl-PF3ONSND—Below MRL2023-07-24
ADONAND—Below MRL2023-07-24
HFPO-DAND10Below MRL2023-07-24
PFBAND—Below MRL2023-07-24
PFPeSND—Below MRL2023-07-24
lithiumND—Below MRL2023-07-24
6:2 FTSND—Below MRL2023-07-24
PFMBAND—Below MRL2023-07-24
8:2 FTSND—Below MRL2023-07-24
PFPeAND—Below MRL2023-07-24
PFUnAND—Below MRL2023-07-24
PFEESAND—Below MRL2023-07-24
PFHpSND—Below MRL2023-07-24
4:2 FTSND—Below MRL2023-07-24
NMeFOSAAND—Below MRL2023-07-24
NFDHAND—Below MRL2023-07-24
PFTAND—Below MRL2023-07-24
PFHpAND—Below MRL2023-07-24
NEtFOSAAND—Below MRL2023-07-24
PFHxAND—Below MRL2023-07-24
PFBSND—Below MRL2023-07-24
PFHxSND10Below MRL2023-07-24
PFNAND10Below MRL2023-07-24
PFOSND4Below MRL2023-07-24
PFOAND4Below MRL2023-07-24
PFDAND—Below MRL2023-07-24
PFDoAND—Below MRL2023-07-24
PFTrDAND—Below MRL2023-07-24
lithiumND—Below MRL2023-10-02
NMeFOSAAND—Below MRL2023-10-02
PFDoAND—Below MRL2023-10-02
NEtFOSAAND—Below MRL2023-10-02
PFTrDAND—Below MRL2023-10-02
4:2 FTSND—Below MRL2023-10-02
PFOAND4Below MRL2023-10-02
PFBSND—Below MRL2023-10-02
PFPeSND—Below MRL2023-10-02
NFDHAND—Below MRL2023-10-02
PFEESAND—Below MRL2023-10-02
PFMBAND—Below MRL2023-10-02
PFPeAND—Below MRL2023-10-02
PFHpSND—Below MRL2023-10-02
8:2 FTSND—Below MRL2023-10-02
PFMPAND—Below MRL2023-10-02
PFOA10.94Exceeds2023-07-24
PFOA8.14Exceeds2023-07-24
PFBA7.6—2023-07-24
PFHxA7.4—2023-07-24
PFBA7.3—2023-07-24
PFPeA6.7—2023-07-24
PFOS6.64Exceeds2023-07-24
PFOS5.94Exceeds2023-07-24
PFBA5.7—2023-07-24
PFOA4.24Exceeds2024-02-20
PFBS4.1—2023-07-24
PFHpA3.9—2023-07-24
PFHxA3.9—2023-07-24
PFPeA3.8—2023-07-24

Violation history

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(PFHxA)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2016-01-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2016-01-01 · Resolved · Tier 3

Next steps