PFAS Comply

HALIFAX WATER DEPARTMENT

PWSID: MA4118000 · HALIFAX, MA · Serving 7,553 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

PFOA5.7 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
5.7 ppt
Highest single detection
2024-07-09
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFMBAND—Below MRL2024-07-09
8:2 FTSND—Below MRL2024-01-10
4:2 FTSND—Below MRL2024-01-10
6:2 FTSND—Below MRL2024-01-10
PFBAND—Below MRL2024-01-10
HFPO-DAND10Below MRL2024-01-10
ADONAND—Below MRL2024-01-10
9Cl-PF3ONSND—Below MRL2024-01-10
11Cl-PF3OUdSND—Below MRL2024-01-10
PFUnAND—Below MRL2024-01-10
PFMPAND—Below MRL2024-01-10
PFDoAND—Below MRL2024-01-10
NEtFOSAAND—Below MRL2024-01-10
PFBAND—Below MRL2024-07-09
lithiumND—Below MRL2024-07-09
HFPO-DAND10Below MRL2024-07-09
ADONAND—Below MRL2024-07-09
PFDAND—Below MRL2024-01-10
PFOSND4Below MRL2024-01-10
PFNAND10Below MRL2024-01-10
PFHpAND—Below MRL2024-01-10
PFBSND—Below MRL2024-01-10
NMeFOSAAND—Below MRL2024-01-10
PFTrDAND—Below MRL2024-01-10
lithiumND—Below MRL2024-01-10
PFTAND—Below MRL2024-01-10
PFMBAND—Below MRL2024-01-10
PFEESAND—Below MRL2024-01-10
NFDHAND—Below MRL2024-01-10
PFPeSND—Below MRL2024-01-10
PFHpSND—Below MRL2024-01-10
PFTrDAND—Below MRL2024-01-10
NEtFOSAAND—Below MRL2024-01-10
NMeFOSAAND—Below MRL2024-01-10
8:2 FTSND—Below MRL2024-01-10
PFMPAND—Below MRL2024-01-10
PFPeAND—Below MRL2024-01-10
PFMBAND—Below MRL2024-01-10
PFDAND—Below MRL2024-01-10
PFBSND—Below MRL2024-01-10
PFDoAND—Below MRL2024-01-10
PFHpAND—Below MRL2024-01-10
PFHxSND10Below MRL2024-01-10
PFOSND4Below MRL2024-01-10
lithiumND—Below MRL2024-01-10
6:2 FTSND—Below MRL2024-01-10
PFNAND10Below MRL2024-01-10
PFHpSND—Below MRL2024-01-10
PFPeSND—Below MRL2024-01-10
NFDHAND—Below MRL2024-01-10
4:2 FTSND—Below MRL2024-01-10
PFTAND—Below MRL2024-01-10
PFBAND—Below MRL2024-01-10
PFHxAND—Below MRL2024-01-10
ADONAND—Below MRL2024-01-10
9Cl-PF3ONSND—Below MRL2024-01-10
11Cl-PF3OUdSND—Below MRL2024-01-10
PFUnAND—Below MRL2024-01-10
HFPO-DAND10Below MRL2024-01-10
PFEESAND—Below MRL2024-01-10
PFMPAND—Below MRL2024-01-10
lithiumND—Below MRL2024-01-10
PFTrDAND—Below MRL2024-01-10
NEtFOSAAND—Below MRL2024-01-10
PFTAND—Below MRL2024-01-10
PFOSND4Below MRL2024-01-10
8:2 FTSND—Below MRL2024-01-10
PFBSND—Below MRL2024-01-10
NMeFOSAAND—Below MRL2024-01-10
PFOAND4Below MRL2024-01-10
PFDoAND—Below MRL2024-01-10
PFMBAND—Below MRL2024-01-10
PFEESAND—Below MRL2024-01-10
NFDHAND—Below MRL2024-01-10
PFPeSND—Below MRL2024-01-10
PFHpSND—Below MRL2024-01-10
PFHpAND—Below MRL2024-01-10
PFDAND—Below MRL2024-01-10
PFNAND10Below MRL2024-01-10
4:2 FTSND—Below MRL2024-01-10
PFHxAND—Below MRL2024-01-10
PFUnAND—Below MRL2024-01-10
11Cl-PF3OUdSND—Below MRL2024-01-10
9Cl-PF3ONSND—Below MRL2024-01-10
ADONAND—Below MRL2024-01-10
HFPO-DAND10Below MRL2024-01-10
PFBAND—Below MRL2024-01-10
6:2 FTSND—Below MRL2024-01-10
PFPeAND—Below MRL2024-01-10
PFHxSND10Below MRL2024-01-10
PFPeAND—Below MRL2024-07-09
PFBSND—Below MRL2024-07-09
11Cl-PF3OUdSND—Below MRL2024-07-09
PFEESAND—Below MRL2024-07-09
PFMPAND—Below MRL2024-07-09
8:2 FTSND—Below MRL2024-07-09
4:2 FTSND—Below MRL2024-07-09
6:2 FTSND—Below MRL2024-07-09
PFBAND—Below MRL2024-07-09
HFPO-DAND10Below MRL2024-07-09
NFDHAND—Below MRL2024-07-09
9Cl-PF3ONSND—Below MRL2024-07-09
PFPeSND—Below MRL2024-07-09
PFUnAND—Below MRL2024-07-09
PFHxAND—Below MRL2024-07-09
PFDoAND—Below MRL2024-07-09
PFDAND—Below MRL2024-07-09
PFOAND4Below MRL2024-07-09
PFOSND4Below MRL2024-07-09
PFNAND10Below MRL2024-07-09
PFHxSND10Below MRL2024-07-09
ADONAND—Below MRL2024-07-09
PFHpSND—Below MRL2024-07-09
lithiumND—Below MRL2024-07-09
PFTAND—Below MRL2024-07-09
PFTrDAND—Below MRL2024-07-09
NEtFOSAAND—Below MRL2024-07-09
NMeFOSAAND—Below MRL2024-07-09
PFHpAND—Below MRL2024-07-09
PFMBAND—Below MRL2024-07-09
lithiumND—Below MRL2024-01-10
NFDHAND—Below MRL2024-01-10
PFEESAND—Below MRL2024-01-10
PFMBAND—Below MRL2024-01-10
PFPeAND—Below MRL2024-01-10
PFMPAND—Below MRL2024-01-10
8:2 FTSND—Below MRL2024-01-10
4:2 FTSND—Below MRL2024-01-10
6:2 FTSND—Below MRL2024-01-10
PFHpSND—Below MRL2024-01-10
PFPeSND—Below MRL2024-01-10
ADONAND—Below MRL2024-01-10
9Cl-PF3ONSND—Below MRL2024-01-10
PFBAND—Below MRL2024-01-10
PFNAND10Below MRL2024-01-10
PFTAND—Below MRL2024-01-10
PFTrDAND—Below MRL2024-01-10
NEtFOSAAND—Below MRL2024-01-10
NMeFOSAAND—Below MRL2024-01-10
PFHxSND10Below MRL2024-01-10
PFHpAND—Below MRL2024-01-10
PFOSND4Below MRL2024-01-10
PFOAND4Below MRL2024-01-10
PFDAND—Below MRL2024-01-10
PFBSND—Below MRL2024-01-10
PFDoAND—Below MRL2024-01-10
PFHxAND—Below MRL2024-01-10
PFUnAND—Below MRL2024-01-10
11Cl-PF3OUdSND—Below MRL2024-01-10
HFPO-DAND10Below MRL2024-01-10
NFDHAND—Below MRL2024-07-09
NEtFOSAAND—Below MRL2024-07-09
PFTrDAND—Below MRL2024-07-09
PFTAND—Below MRL2024-07-09
PFHpSND—Below MRL2024-07-09
PFPeSND—Below MRL2024-07-09
PFBSND—Below MRL2024-07-09
PFNAND10Below MRL2024-07-09
PFHpAND—Below MRL2024-07-09
NMeFOSAAND—Below MRL2024-07-09
PFHxSND10Below MRL2024-07-09
PFEESAND—Below MRL2024-07-09
PFOSND4Below MRL2024-07-09
PFOAND4Below MRL2024-07-09
PFDAND—Below MRL2024-07-09
PFDoAND—Below MRL2024-07-09
PFHxAND—Below MRL2024-07-09
PFUnAND—Below MRL2024-07-09
11Cl-PF3OUdSND—Below MRL2024-07-09
PFMPAND—Below MRL2024-07-09
9Cl-PF3ONSND—Below MRL2024-07-09
PFPeAND—Below MRL2024-07-09
8:2 FTSND—Below MRL2024-07-09
4:2 FTSND—Below MRL2024-07-09
6:2 FTSND—Below MRL2024-07-09
PFOA5.74Exceeds2024-01-10
PFOA4.64Exceeds2024-01-10
PFHxA4.4—2024-01-10
PFPeA4—2024-01-10
PFHxS3.710Detected2024-01-10

Violation history

Monitoring & Reporting - PFOA(PFOA)
2021-04-01 · Open · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2021-04-01 · Open · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2021-04-01 · Open · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2021-04-01 · Open · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2021-04-01 · Open · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2021-04-01 · Open · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2021-04-01 · Open · Tier 3

Next steps