PFAS Comply

NYACK VILLAGE WATER SUPPLY

PWSID: NY4303666 · NYACK, NY · Serving 14,700 people

Type: CWSOwner: LSource: 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

PFOA9.8 ppt(MCL: 4 ppt)
PFOS5.2 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
9.8 ppt
Highest single detection
2025-09-08
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
8:2 FTSND—Below MRL2025-09-08
9Cl-PF3ONSND—Below MRL2025-03-26
HFPO-DAND10Below MRL2025-03-26
ADONAND—Below MRL2025-03-26
PFBAND—Below MRL2025-03-26
PFTAND—Below MRL2025-03-26
PFTrDAND—Below MRL2025-03-26
NMeFOSAAND—Below MRL2025-03-26
PFDoAND—Below MRL2025-03-26
NEtFOSAAND—Below MRL2025-03-26
PFHpSND—Below MRL2025-03-26
PFHpSND—Below MRL2025-09-08
PFPeSND—Below MRL2025-09-08
NFDHAND—Below MRL2025-09-08
PFEESAND—Below MRL2025-09-08
PFMBAND—Below MRL2025-09-08
PFMPAND—Below MRL2025-09-08
11Cl-PF3OUdSND—Below MRL2025-09-08
4:2 FTSND—Below MRL2025-09-08
HFPO-DAND10Below MRL2025-09-08
9Cl-PF3ONSND—Below MRL2025-09-08
PFUnAND—Below MRL2025-09-08
PFDoAND—Below MRL2025-09-08
PFDAND—Below MRL2025-09-08
PFNAND10Below MRL2025-09-08
PFHxSND10Below MRL2025-09-08
11Cl-PF3OUdSND—Below MRL2025-03-26
PFMPAND—Below MRL2025-03-26
8:2 FTSND—Below MRL2025-03-26
4:2 FTSND—Below MRL2025-03-26
6:2 FTSND—Below MRL2025-03-26
lithiumND—Below MRL2025-03-26
PFEESAND—Below MRL2025-03-26
PFUnAND—Below MRL2025-03-26
PFPeSND—Below MRL2025-03-26
PFBSND—Below MRL2025-03-26
PFHpAND—Below MRL2025-03-26
PFHxSND10Below MRL2025-03-26
PFNAND10Below MRL2025-03-26
PFDAND—Below MRL2025-03-26
PFMBAND—Below MRL2025-03-26
NFDHAND—Below MRL2025-03-26
PFNAND10Below MRL2025-06-23
PFHxSND10Below MRL2025-06-23
PFHpAND—Below MRL2025-06-23
PFBSND—Below MRL2025-06-23
PFDAND—Below MRL2025-06-23
PFDoAND—Below MRL2025-06-23
PFUnAND—Below MRL2025-06-23
11Cl-PF3OUdSND—Below MRL2025-06-23
9Cl-PF3ONSND—Below MRL2025-06-23
PFEESAND—Below MRL2025-06-23
HFPO-DAND10Below MRL2025-06-23
lithiumND—Below MRL2025-06-23
PFTrDAND—Below MRL2025-06-23
NEtFOSAAND—Below MRL2025-06-23
NMeFOSAAND—Below MRL2025-06-23
PFHpSND—Below MRL2025-06-23
PFPeSND—Below MRL2025-06-23
ADONAND—Below MRL2025-06-23
NFDHAND—Below MRL2025-06-23
PFTAND—Below MRL2025-06-23
PFMBAND—Below MRL2025-06-23
PFMPAND—Below MRL2025-06-23
8:2 FTSND—Below MRL2025-06-23
4:2 FTSND—Below MRL2025-06-23
6:2 FTSND—Below MRL2025-06-23
ADONAND—Below MRL2025-09-08
6:2 FTSND—Below MRL2025-09-08
lithiumND—Below MRL2025-09-08
NMeFOSAAND—Below MRL2025-09-08
NEtFOSAAND—Below MRL2025-09-08
PFTrDAND—Below MRL2025-09-08
PFTAND—Below MRL2025-09-08
PFOA9.84Exceeds2025-09-08
PFOA8.14Exceeds2025-03-26
PFOA7.94Exceeds2025-06-23
PFPeA5.2—2025-09-08
PFOS5.24Exceeds2025-09-08
PFBA5.1—2025-09-08
PFBA5—2025-06-23
PFHxA4.7—2025-09-08
PFOS4.64Exceeds2025-06-23
PFPeA4.2—2025-03-26
PFOS4.24Exceeds2025-03-26
PFPeA3.9—2025-06-23
PFHxA3.9—2025-03-26
PFHxA3.7—2025-06-23
PFBS3.3—2025-09-08
PFHpA3.2—2025-09-08

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