PFAS Comply

MAHWAH WATER DEPARTMENT

PWSID: NJ0233001 · MAHWAH, NJ · Serving 26,777 people

Type: CWSOwner: LSource: SW
Settlement eligible
May qualify for 3M/DuPont settlement funds
Check claims portal →
Exceeds MCL

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

Key contaminants vs MCL

PFOA12.5 ppt(MCL: 4 ppt)
PFOS4.5 ppt(MCL: 4 ppt)

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

Detection summary

8
PFAS compounds detected
33100 ppt
Highest single detection
2025-08-12
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFEESAND—Below MRL2025-07-08
HFPO-DAND10Below MRL2024-10-02
PFBSND—Below MRL2024-10-02
PFHpAND—Below MRL2024-10-02
PFHxSND10Below MRL2024-10-02
PFNAND10Below MRL2024-10-02
PFOSND4Below MRL2024-10-02
PFOAND4Below MRL2024-10-02
PFDAND—Below MRL2024-10-02
PFDoAND—Below MRL2024-10-02
PFHxAND—Below MRL2024-10-02
PFUnAND—Below MRL2024-10-02
11Cl-PF3OUdSND—Below MRL2024-10-02
9Cl-PF3ONSND—Below MRL2024-10-02
4:2 FTSND—Below MRL2024-10-02
ADONAND—Below MRL2024-10-02
NMeFOSAAND—Below MRL2024-10-02
6:2 FTSND—Below MRL2024-10-02
8:2 FTSND—Below MRL2024-10-02
PFMPAND—Below MRL2024-10-02
PFPeAND—Below MRL2024-10-02
PFMBAND—Below MRL2024-10-02
PFEESAND—Below MRL2024-10-02
NFDHAND—Below MRL2024-10-02
PFPeSND—Below MRL2024-10-02
PFHpSND—Below MRL2024-10-02
PFEESAND—Below MRL2025-04-09
NFDHAND—Below MRL2025-04-09
HFPO-DAND10Below MRL2025-04-09
PFUnAND—Below MRL2025-04-09
8:2 FTSND—Below MRL2025-04-09
PFMPAND—Below MRL2025-04-09
PFMBAND—Below MRL2025-04-09
lithiumND—Below MRL2025-04-09
4:2 FTSND—Below MRL2025-04-09
PFTAND—Below MRL2025-04-09
PFTrDAND—Below MRL2025-04-09
9Cl-PF3ONSND—Below MRL2025-04-09
NMeFOSAAND—Below MRL2025-04-09
PFHpSND—Below MRL2025-04-09
6:2 FTSND—Below MRL2025-04-09
NEtFOSAAND—Below MRL2025-04-09
PFMPAND—Below MRL2025-07-08
8:2 FTSND—Below MRL2025-07-08
4:2 FTSND—Below MRL2025-07-08
6:2 FTSND—Below MRL2025-07-08
HFPO-DAND10Below MRL2025-07-08
9Cl-PF3ONSND—Below MRL2025-07-08
PFUnAND—Below MRL2025-07-08
PFTrDAND—Below MRL2025-07-08
PFDAND—Below MRL2025-07-08
PFMBAND—Below MRL2025-07-08
PFOSND4Below MRL2025-07-08
PFDoAND—Below MRL2025-07-08
NMeFOSAAND—Below MRL2025-07-08
NEtFOSAAND—Below MRL2025-07-08
PFTAND—Below MRL2025-07-08
lithiumND—Below MRL2025-07-08
11Cl-PF3OUdSND—Below MRL2025-07-08
PFNAND10Below MRL2025-07-08
NFDHAND—Below MRL2025-07-08
PFPeSND—Below MRL2025-07-08
PFHpSND—Below MRL2025-07-08
PFHxSND10Below MRL2025-07-08
ADONAND—Below MRL2025-07-08
PFBAND—Below MRL2024-10-02
PFTAND—Below MRL2024-10-02
PFTrDAND—Below MRL2024-10-02
NEtFOSAAND—Below MRL2024-10-02
PFNAND10Below MRL2025-04-09
6:2 FTSND—Below MRL2025-04-09
PFBSND—Below MRL2025-04-09
PFHpAND—Below MRL2025-04-09
PFHxSND10Below MRL2025-04-09
PFOSND4Below MRL2025-04-09
PFDAND—Below MRL2025-04-09
PFDoAND—Below MRL2025-04-09
PFHxAND—Below MRL2025-04-09
PFUnAND—Below MRL2025-04-09
11Cl-PF3OUdSND—Below MRL2025-04-09
9Cl-PF3ONSND—Below MRL2025-04-09
ADONAND—Below MRL2025-04-09
PFOAND4Below MRL2025-04-09
PFBAND—Below MRL2025-04-09
NFDHAND—Below MRL2025-04-09
NMeFOSAAND—Below MRL2025-04-09
NEtFOSAAND—Below MRL2025-04-09
PFTrDAND—Below MRL2025-04-09
PFTAND—Below MRL2025-04-09
HFPO-DAND10Below MRL2025-04-09
PFPeSND—Below MRL2025-04-09
lithiumND—Below MRL2025-04-09
PFEESAND—Below MRL2025-04-09
PFMBAND—Below MRL2025-04-09
PFPeAND—Below MRL2025-04-09
PFMPAND—Below MRL2025-04-09
8:2 FTSND—Below MRL2025-04-09
4:2 FTSND—Below MRL2025-04-09
PFHpSND—Below MRL2025-04-09
PFBSND—Below MRL2024-10-29
6:2 FTSND—Below MRL2024-10-29
PFTrDAND—Below MRL2024-10-02
PFDAND—Below MRL2024-10-29
PFDoAND—Below MRL2024-10-29
PFUnAND—Below MRL2024-10-29
11Cl-PF3OUdSND—Below MRL2024-10-29
9Cl-PF3ONSND—Below MRL2024-10-29
ADONAND—Below MRL2024-10-29
HFPO-DAND10Below MRL2024-10-29
lithiumND—Below MRL2024-10-02
PFNAND10Below MRL2024-10-29
PFHpAND—Below MRL2024-10-29
PFHxSND10Below MRL2024-10-29
4:2 FTSND—Below MRL2024-10-29
8:2 FTSND—Below MRL2024-10-29
PFMPAND—Below MRL2024-10-29
PFMBAND—Below MRL2024-10-29
PFEESAND—Below MRL2024-10-29
NFDHAND—Below MRL2024-10-29
PFPeSND—Below MRL2024-10-29
PFHpSND—Below MRL2024-10-29
PFTAND—Below MRL2024-10-02
NMeFOSAAND—Below MRL2024-10-02
NEtFOSAAND—Below MRL2024-10-02
PFBAND—Below MRL2024-10-29
PFDoAND—Below MRL2025-05-28
PFBSND—Below MRL2025-05-28
HFPO-DAND10Below MRL2025-05-28
ADONAND—Below MRL2025-05-28
9Cl-PF3ONSND—Below MRL2025-05-28
11Cl-PF3OUdSND—Below MRL2025-05-28
6:2 FTSND—Below MRL2025-05-28
4:2 FTSND—Below MRL2025-05-28
PFDAND—Below MRL2025-05-28
PFNAND10Below MRL2025-05-28
PFHxSND10Below MRL2025-05-28
PFHpAND—Below MRL2025-05-28
PFUnAND—Below MRL2025-05-28
NFDHAND—Below MRL2025-05-28
NMeFOSAAND—Below MRL2025-05-28
NEtFOSAAND—Below MRL2025-05-28
lithiumND—Below MRL2025-05-28
PFTrDAND—Below MRL2025-05-28
PFTAND—Below MRL2025-05-28
PFBAND—Below MRL2025-05-28
PFPeSND—Below MRL2025-05-28
PFEESAND—Below MRL2025-05-28
PFMBAND—Below MRL2025-05-28
PFMPAND—Below MRL2025-05-28
8:2 FTSND—Below MRL2025-05-28
PFHpSND—Below MRL2025-05-28
6:2 FTSND—Below MRL2024-10-29
lithiumND—Below MRL2024-10-02
PFBSND—Below MRL2024-10-29
PFHpAND—Below MRL2024-10-29
PFHxSND10Below MRL2024-10-29
PFNAND10Below MRL2024-10-29
PFDAND—Below MRL2024-10-29
PFDoAND—Below MRL2024-10-29
PFUnAND—Below MRL2024-10-29
11Cl-PF3OUdSND—Below MRL2024-10-29
9Cl-PF3ONSND—Below MRL2024-10-29
8:2 FTSND—Below MRL2024-10-29
HFPO-DAND10Below MRL2024-10-29
NMeFOSAAND—Below MRL2024-10-02
4:2 FTSND—Below MRL2024-10-29
PFMPAND—Below MRL2024-10-29
PFMBAND—Below MRL2024-10-29
PFEESAND—Below MRL2024-10-29
NFDHAND—Below MRL2024-10-29
PFPeSND—Below MRL2024-10-29
PFHpSND—Below MRL2024-10-29
PFTAND—Below MRL2024-10-02
PFTrDAND—Below MRL2024-10-02
NEtFOSAAND—Below MRL2024-10-02
ADONAND—Below MRL2024-10-29
NFDHAND—Below MRL2025-04-09
ADONAND—Below MRL2025-04-09
NEtFOSAAND—Below MRL2025-04-09
PFTrDAND—Below MRL2025-04-09
PFTAND—Below MRL2025-04-09
NMeFOSAAND—Below MRL2025-04-09
lithiumND—Below MRL2025-04-09
PFPeSND—Below MRL2025-04-09
PFEESAND—Below MRL2025-04-09
PFMBAND—Below MRL2025-04-09
PFMPAND—Below MRL2025-04-09
8:2 FTSND—Below MRL2025-04-09
4:2 FTSND—Below MRL2025-04-09
PFHpAND—Below MRL2025-04-09
PFHpSND—Below MRL2025-04-09
PFBSND—Below MRL2025-04-09
6:2 FTSND—Below MRL2025-04-09
PFHxSND10Below MRL2025-04-09
PFNAND10Below MRL2025-04-09
PFDoAND—Below MRL2025-04-09
PFUnAND—Below MRL2025-04-09
11Cl-PF3OUdSND—Below MRL2025-04-09
9Cl-PF3ONSND—Below MRL2025-04-09
HFPO-DAND10Below MRL2025-04-09
PFDAND—Below MRL2025-04-09
NEtFOSAAND—Below MRL2025-08-12
PFHxAND—Below MRL2025-08-12
PFDoAND—Below MRL2025-08-12
PFDAND—Below MRL2025-08-12
PFOAND4Below MRL2025-08-12
PFOSND4Below MRL2025-08-12
PFNAND10Below MRL2025-08-12
PFHxSND10Below MRL2025-08-12
PFHpAND—Below MRL2025-08-12
PFTAND—Below MRL2025-08-12
NMeFOSAAND—Below MRL2025-08-12
PFTrDAND—Below MRL2025-08-12
lithiumND—Below MRL2025-08-12
PFUnAND—Below MRL2025-08-12
PFBSND—Below MRL2025-08-12
PFMPAND—Below MRL2025-08-12
PFPeAND—Below MRL2025-08-12
PFMBAND—Below MRL2025-08-12
PFEESAND—Below MRL2025-08-12
NFDHAND—Below MRL2025-08-12
PFPeSND—Below MRL2025-08-12
PFHpSND—Below MRL2025-08-12
11Cl-PF3OUdSND—Below MRL2025-08-12
9Cl-PF3ONSND—Below MRL2025-08-12
ADONAND—Below MRL2025-08-12
HFPO-DAND10Below MRL2025-08-12
PFBAND—Below MRL2025-08-12
6:2 FTSND—Below MRL2025-08-12
8:2 FTSND—Below MRL2025-08-12
4:2 FTSND—Below MRL2025-08-12
PFDAND—Below MRL2024-10-02
PFDoAND—Below MRL2024-10-02
PFOSND4Below MRL2024-10-02
PFHpSND—Below MRL2024-10-02
8:2 FTSND—Below MRL2024-10-02
11Cl-PF3OUdSND—Below MRL2024-10-02
NMeFOSAAND—Below MRL2024-10-02
NEtFOSAAND—Below MRL2024-10-02
PFTrDAND—Below MRL2024-10-02
PFTAND—Below MRL2024-10-02
lithiumND—Below MRL2024-10-02
PFUnAND—Below MRL2024-10-02
PFPeSND—Below MRL2024-10-02
PFEESAND—Below MRL2024-10-02
PFMBAND—Below MRL2024-10-02
NFDHAND—Below MRL2024-10-02
PFMPAND—Below MRL2024-10-02
PFBAND—Below MRL2024-10-02
4:2 FTSND—Below MRL2024-10-02
6:2 FTSND—Below MRL2024-10-02
PFBSND—Below MRL2024-10-02
PFHpAND—Below MRL2024-10-02
PFHxSND10Below MRL2024-10-02
PFNAND10Below MRL2024-10-02
9Cl-PF3ONSND—Below MRL2024-10-02
ADONAND—Below MRL2024-10-02
HFPO-DAND10Below MRL2024-10-02
NEtFOSAAND—Below MRL2025-01-14
NMeFOSAAND—Below MRL2025-01-14
PFTrDAND—Below MRL2025-01-14
9Cl-PF3ONSND—Below MRL2025-01-14
PFHxSND10Below MRL2025-01-14
PFNAND10Below MRL2025-01-14
lithiumND—Below MRL2025-01-14
PFTAND—Below MRL2025-01-14
PFDAND—Below MRL2025-01-14
PFDoAND—Below MRL2025-01-14
11Cl-PF3OUdSND—Below MRL2025-01-14
PFEESAND—Below MRL2025-01-14
ADONAND—Below MRL2025-01-14
HFPO-DAND10Below MRL2025-01-14
6:2 FTSND—Below MRL2025-01-14
4:2 FTSND—Below MRL2025-01-14
8:2 FTSND—Below MRL2025-01-14
PFMPAND—Below MRL2025-01-14
PFMBAND—Below MRL2025-01-14
PFUnAND—Below MRL2025-01-14
NFDHAND—Below MRL2025-01-14
PFOSND4Below MRL2025-01-14
PFHpSND—Below MRL2025-01-14
PFPeSND—Below MRL2025-01-14
ADONAND—Below MRL2025-04-09
11Cl-PF3OUdSND—Below MRL2025-04-09
PFHxSND10Below MRL2025-04-09
PFNAND10Below MRL2025-04-09
PFOSND4Below MRL2025-04-09
PFDAND—Below MRL2025-04-09
PFDoAND—Below MRL2025-04-09
PFPeSND—Below MRL2025-04-09
lithium33100—2024-10-02
PFOA12.54Exceeds2025-07-08
PFOA11.84Exceeds2025-04-09
PFOA10.44Exceeds2025-01-14
PFOA8.74Exceeds2024-10-02
PFOA8.44Exceeds2024-10-29
PFOA8.24Exceeds2024-10-29
PFOA8.14Exceeds2025-04-09
PFOA7.24Exceeds2025-05-28
PFPeA6.1—2025-07-08
PFHxA6.1—2025-07-08
PFBA6—2025-04-09
PFBA6—2025-07-08
PFHxA5.7—2025-04-09
PFPeA5.6—2025-04-09
PFBA5.6—2025-01-14
PFHxA5.5—2025-01-14
PFPeA5.4—2025-01-14
PFBA5.1—2024-10-29
PFBA5—2025-04-09
PFOS4.54Exceeds2025-04-09
PFPeA4.4—2024-10-02
PFHxA4.4—2024-10-02
PFOS4.34Exceeds2024-10-29
PFOS4.34Exceeds2024-10-29
PFBS4.1—2025-07-08
PFOS4.14Exceeds2025-05-28
PFPeA3.9—2024-10-29
PFHpA3.9—2025-07-08
PFPeA3.8—2024-10-29
PFPeA3.7—2025-04-09
PFHxA3.7—2024-10-29
PFHpA3.6—2025-01-14
PFBS3.6—2025-01-14
PFHpA3.6—2025-04-09
PFBS3.5—2025-04-09
PFHxA3.5—2024-10-29
PFPeA3.3—2025-05-28
PFHxA3.3—2025-04-09
PFHxA3—2025-05-28

Next steps

MAHWAH WATER DEPARTMENT PFAS results — MAHWAH, NJ | PFAS Comply