PFAS Comply

TOPSFIELD WATER DEPARTMENT

PWSID: MA3298000 · TOPSFIELD, MA · Serving 5,435 people

Type: CWSOwner: LSource: GW
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 ppt(MCL: 4 ppt)
PFOS5.4 ppt(MCL: 4 ppt)

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

Detection summary

5
PFAS compounds detected
9 ppt
Highest single detection
2025-07-22
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFDAND—Below MRL2025-07-22
4:2 FTSND—Below MRL2025-01-15
6:2 FTSND—Below MRL2025-01-15
PFBAND—Below MRL2025-01-15
HFPO-DAND10Below MRL2025-01-15
ADONAND—Below MRL2025-01-15
9Cl-PF3ONSND—Below MRL2025-01-15
PFUnAND—Below MRL2025-01-15
NFDHAND—Below MRL2025-01-15
lithiumND—Below MRL2025-01-15
8:2 FTSND—Below MRL2025-07-22
PFDoAND—Below MRL2025-07-22
PFUnAND—Below MRL2025-07-22
11Cl-PF3OUdSND—Below MRL2025-07-22
9Cl-PF3ONSND—Below MRL2025-07-22
ADONAND—Below MRL2025-07-22
HFPO-DAND10Below MRL2025-07-22
PFBAND—Below MRL2025-07-22
4:2 FTSND—Below MRL2025-07-22
PFHxSND10Below MRL2025-01-15
PFHpAND—Below MRL2025-01-15
PFNAND10Below MRL2025-01-15
PFDoAND—Below MRL2025-01-15
PFDAND—Below MRL2025-01-15
8:2 FTSND—Below MRL2025-01-15
NMeFOSAAND—Below MRL2025-01-15
PFTrDAND—Below MRL2025-01-15
NEtFOSAAND—Below MRL2025-01-15
11Cl-PF3OUdSND—Below MRL2025-01-15
PFTAND—Below MRL2025-01-15
PFHpSND—Below MRL2025-01-15
PFPeSND—Below MRL2025-01-15
PFEESAND—Below MRL2025-01-15
PFMBAND—Below MRL2025-01-15
PFMPAND—Below MRL2025-01-15
PFMPAND—Below MRL2025-07-22
PFPeSND—Below MRL2025-07-22
PFMBAND—Below MRL2025-07-22
PFEESAND—Below MRL2025-07-22
NFDHAND—Below MRL2025-07-22
PFHpSND—Below MRL2025-07-22
PFTAND—Below MRL2025-07-22
PFTrDAND—Below MRL2025-07-22
NMeFOSAAND—Below MRL2025-07-22
6:2 FTSND—Below MRL2025-07-22
lithiumND—Below MRL2025-07-22
NEtFOSAAND—Below MRL2025-07-22
PFHpAND—Below MRL2025-07-22
PFHxSND10Below MRL2025-07-22
PFNAND10Below MRL2025-07-22
PFOA94Exceeds2025-01-15
PFOA8.64Exceeds2025-07-22
PFOS5.44Exceeds2025-01-15
PFOS5.34Exceeds2025-07-22
PFBS4—2025-01-15
PFBS3.8—2025-07-22
PFHxA3.4—2025-07-22
PFPeA3.2—2025-01-15
PFPeA3.1—2025-07-22
PFHxA3.1—2025-01-15

Next steps