PFAS Comply

MANSFIELD WATER DIVISION

PWSID: MA4167000 · MANSFIELD, MA · Serving 23,289 people

Type: CWSOwner: LSource: GW
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

PFOA4.3 ppt(MCL: 4 ppt)
PFOS6.2 ppt(MCL: 4 ppt)

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

Detection summary

4
PFAS compounds detected
6.2 ppt
Highest single detection
2025-09-17
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFHpSND—Below MRL2025-09-17
PFHxAND—Below MRL2025-04-01
11Cl-PF3OUdSND—Below MRL2025-04-01
9Cl-PF3ONSND—Below MRL2025-04-01
ADONAND—Below MRL2025-04-01
HFPO-DAND10Below MRL2025-04-01
PFBAND—Below MRL2025-04-01
PFUnAND—Below MRL2025-04-01
PFHpSND—Below MRL2025-04-01
PFPeSND—Below MRL2025-04-01
NFDHAND—Below MRL2025-04-01
PFEESAND—Below MRL2025-04-01
PFMBAND—Below MRL2025-04-01
PFPeAND—Below MRL2025-04-01
8:2 FTSND—Below MRL2025-04-01
PFDoAND—Below MRL2025-04-01
PFMPAND—Below MRL2025-04-01
PFTrDAND—Below MRL2025-04-01
PFOAND4Below MRL2025-04-01
PFOSND4Below MRL2025-04-01
PFNAND10Below MRL2025-04-01
PFHxSND10Below MRL2025-04-01
PFHpAND—Below MRL2025-04-01
PFBSND—Below MRL2025-04-01
PFDAND—Below MRL2025-04-01
NEtFOSAAND—Below MRL2025-04-01
lithiumND—Below MRL2025-04-01
PFTAND—Below MRL2025-04-01
4:2 FTSND—Below MRL2025-04-01
NMeFOSAAND—Below MRL2025-04-01
NMeFOSAAND—Below MRL2025-09-17
PFHxAND—Below MRL2025-09-17
PFTAND—Below MRL2025-09-17
NEtFOSAAND—Below MRL2025-09-17
PFTrDAND—Below MRL2025-09-17
PFMBAND—Below MRL2025-09-17
lithiumND—Below MRL2025-09-17
PFPeAND—Below MRL2025-09-17
PFMPAND—Below MRL2025-09-17
8:2 FTSND—Below MRL2025-09-17
4:2 FTSND—Below MRL2025-09-17
6:2 FTSND—Below MRL2025-09-17
PFBAND—Below MRL2025-09-17
HFPO-DAND10Below MRL2025-09-17
ADONAND—Below MRL2025-09-17
9Cl-PF3ONSND—Below MRL2025-09-17
PFDAND—Below MRL2025-09-17
PFUnAND—Below MRL2025-09-17
PFBSND—Below MRL2025-09-17
PFDoAND—Below MRL2025-09-17
PFOAND4Below MRL2025-09-17
PFOSND4Below MRL2025-09-17
PFNAND10Below MRL2025-09-17
PFHpSND—Below MRL2025-09-17
PFPeSND—Below MRL2025-09-17
NFDHAND—Below MRL2025-09-17
PFEESAND—Below MRL2025-09-17
PFHxSND10Below MRL2025-09-17
PFHpAND—Below MRL2025-09-17
11Cl-PF3OUdSND—Below MRL2025-09-17
PFOSND4Below MRL2025-03-31
NEtFOSAAND—Below MRL2025-03-31
NMeFOSAAND—Below MRL2025-03-31
lithiumND—Below MRL2025-03-31
PFOAND4Below MRL2025-03-31
PFDAND—Below MRL2025-03-31
PFDoAND—Below MRL2025-03-31
PFHxAND—Below MRL2025-03-31
PFUnAND—Below MRL2025-03-31
11Cl-PF3OUdSND—Below MRL2025-03-31
9Cl-PF3ONSND—Below MRL2025-03-31
ADONAND—Below MRL2025-03-31
PFHpAND—Below MRL2025-03-31
PFTrDAND—Below MRL2025-03-31
PFNAND10Below MRL2025-03-31
PFBSND—Below MRL2025-03-31
HFPO-DAND10Below MRL2025-03-31
PFBAND—Below MRL2025-03-31
6:2 FTSND—Below MRL2025-03-31
4:2 FTSND—Below MRL2025-03-31
8:2 FTSND—Below MRL2025-03-31
PFMPAND—Below MRL2025-03-31
PFPeAND—Below MRL2025-03-31
PFMBAND—Below MRL2025-03-31
PFEESAND—Below MRL2025-03-31
NFDHAND—Below MRL2025-03-31
PFPeSND—Below MRL2025-03-31
PFHpSND—Below MRL2025-03-31
PFTAND—Below MRL2025-03-31
PFHxSND10Below MRL2025-03-31
4:2 FTSND—Below MRL2025-09-17
PFHpAND—Below MRL2025-09-17
PFHxSND10Below MRL2025-09-17
PFNAND10Below MRL2025-09-17
PFOSND4Below MRL2025-09-17
PFOAND4Below MRL2025-09-17
PFDAND—Below MRL2025-09-17
PFDoAND—Below MRL2025-09-17
PFHxAND—Below MRL2025-09-17
11Cl-PF3OUdSND—Below MRL2025-09-17
ADONAND—Below MRL2025-09-17
HFPO-DAND10Below MRL2025-09-17
PFBSND—Below MRL2025-09-17
6:2 FTSND—Below MRL2025-09-17
PFUnAND—Below MRL2025-09-17
8:2 FTSND—Below MRL2025-09-17
PFMPAND—Below MRL2025-09-17
PFPeAND—Below MRL2025-09-17
PFMBAND—Below MRL2025-09-17
PFEESAND—Below MRL2025-09-17
NFDHAND—Below MRL2025-09-17
PFPeSND—Below MRL2025-09-17
PFHpSND—Below MRL2025-09-17
lithiumND—Below MRL2025-09-17
PFTAND—Below MRL2025-09-17
PFTrDAND—Below MRL2025-09-17
NEtFOSAAND—Below MRL2025-09-17
NMeFOSAAND—Below MRL2025-09-17
PFBAND—Below MRL2025-09-17
9Cl-PF3ONSND—Below MRL2025-09-17
11Cl-PF3OUdSND—Below MRL2025-03-31
PFPeSND—Below MRL2025-03-31
NFDHAND—Below MRL2025-03-31
PFEESAND—Below MRL2025-03-31
PFMBAND—Below MRL2025-03-31
PFPeAND—Below MRL2025-03-31
PFMPAND—Below MRL2025-03-31
8:2 FTSND—Below MRL2025-03-31
4:2 FTSND—Below MRL2025-03-31
6:2 FTSND—Below MRL2025-03-31
PFBAND—Below MRL2025-03-31
HFPO-DAND10Below MRL2025-03-31
9Cl-PF3ONSND—Below MRL2025-03-31
PFHpSND—Below MRL2025-03-31
PFTAND—Below MRL2025-03-31
NMeFOSAAND—Below MRL2025-03-31
PFBAND—Below MRL2025-09-17
HFPO-DAND10Below MRL2025-09-17
ADONAND—Below MRL2025-09-17
9Cl-PF3ONSND—Below MRL2025-09-17
6:2 FTSND—Below MRL2025-04-01
PFHpAND—Below MRL2025-03-31
PFHxSND10Below MRL2025-03-31
PFNAND10Below MRL2025-03-31
ADONAND—Below MRL2025-03-31
PFTrDAND—Below MRL2025-03-31
PFUnAND—Below MRL2025-03-31
lithiumND—Below MRL2025-03-31
PFOSND4Below MRL2025-03-31
PFOAND4Below MRL2025-03-31
PFDAND—Below MRL2025-03-31
PFDoAND—Below MRL2025-03-31
PFHxAND—Below MRL2025-03-31
NEtFOSAAND—Below MRL2025-03-31
PFHxAND—Below MRL2025-09-17
PFDAND—Below MRL2025-09-17
PFDoAND—Below MRL2025-09-17
NFDHAND—Below MRL2025-09-17
PFNAND10Below MRL2025-09-17
PFHpAND—Below MRL2025-09-17
lithiumND—Below MRL2025-09-17
NMeFOSAAND—Below MRL2025-09-17
NEtFOSAAND—Below MRL2025-09-17
PFTrDAND—Below MRL2025-09-17
PFTAND—Below MRL2025-09-17
11Cl-PF3OUdSND—Below MRL2025-09-17
PFPeSND—Below MRL2025-09-17
PFUnAND—Below MRL2025-09-17
PFEESAND—Below MRL2025-09-17
PFMBAND—Below MRL2025-09-17
PFPeAND—Below MRL2025-09-17
PFMPAND—Below MRL2025-09-17
8:2 FTSND—Below MRL2025-09-17
4:2 FTSND—Below MRL2025-09-17
6:2 FTSND—Below MRL2025-09-17
PFOS6.24Exceeds2025-09-17
PFOA4.34Exceeds2025-09-17
PFBS3.8—2025-09-17
PFBS3.1—2025-03-31
PFHxS3.110Detected2025-09-17

Next steps