PFAS Comply

SOMERSET WATER DEPARTMENT

PWSID: MA4273000 · SOMERSET, MA · Serving 18,303 people

Type: CWSOwner: LSource: SW
Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

Key contaminants vs MCL

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

Detection summary

0
PFAS compounds detected
N/A ppt
Highest single detection
2025-09-15
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
NMeFOSAAND—Below MRL2024-12-09
NEtFOSAAND—Below MRL2024-12-09
PFTrDAND—Below MRL2024-12-09
PFTAND—Below MRL2024-12-09
6:2 FTSND—Below MRL2024-12-09
PFOSND4Below MRL2024-12-09
PFUnAND—Below MRL2024-12-09
PFHpAND—Below MRL2024-12-09
PFNAND10Below MRL2024-12-09
PFOAND4Below MRL2024-12-09
PFDAND—Below MRL2024-12-09
PFDoAND—Below MRL2024-12-09
PFHxAND—Below MRL2024-12-09
PFBSND—Below MRL2024-12-09
PFPeSND—Below MRL2024-12-09
4:2 FTSND—Below MRL2024-12-09
8:2 FTSND—Below MRL2024-12-09
PFMPAND—Below MRL2024-12-09
PFPeAND—Below MRL2024-12-09
PFMBAND—Below MRL2024-12-09
PFHxSND10Below MRL2024-12-09
NFDHAND—Below MRL2024-12-09
11Cl-PF3OUdSND—Below MRL2024-12-09
PFHpSND—Below MRL2024-12-09
HFPO-DAND10Below MRL2024-12-09
9Cl-PF3ONSND—Below MRL2024-12-09
PFEESAND—Below MRL2024-12-09
ADONAND—Below MRL2024-12-09
PFBAND—Below MRL2024-12-09
lithiumND—Below MRL2024-12-09
ADONAND—Below MRL2025-03-03
HFPO-DAND10Below MRL2025-03-03
PFBAND—Below MRL2025-03-03
6:2 FTSND—Below MRL2025-03-03
4:2 FTSND—Below MRL2025-03-03
PFPeAND—Below MRL2025-03-03
PFMPAND—Below MRL2025-03-03
9Cl-PF3ONSND—Below MRL2025-03-03
PFEESAND—Below MRL2025-03-03
PFMBAND—Below MRL2025-03-03
NFDHAND—Below MRL2025-03-03
PFPeSND—Below MRL2025-03-03
PFBSND—Below MRL2025-03-03
PFHpSND—Below MRL2025-03-03
8:2 FTSND—Below MRL2025-03-03
NEtFOSAAND—Below MRL2025-03-03
PFHxSND10Below MRL2025-03-03
11Cl-PF3OUdSND—Below MRL2025-03-03
lithiumND—Below MRL2025-03-03
NMeFOSAAND—Below MRL2025-03-03
PFTrDAND—Below MRL2025-03-03
PFHpAND—Below MRL2025-03-03
PFNAND10Below MRL2025-03-03
PFOSND4Below MRL2025-03-03
PFOAND4Below MRL2025-03-03
PFDAND—Below MRL2025-03-03
PFDoAND—Below MRL2025-03-03
PFHxAND—Below MRL2025-03-03
PFUnAND—Below MRL2025-03-03
PFTAND—Below MRL2025-03-03
PFDAND—Below MRL2025-06-02
PFHpAND—Below MRL2025-06-02
PFHxSND10Below MRL2025-06-02
PFNAND10Below MRL2025-06-02
PFOSND4Below MRL2025-06-02
PFOAND4Below MRL2025-06-02
PFDoAND—Below MRL2025-06-02
PFHxAND—Below MRL2025-06-02
PFUnAND—Below MRL2025-06-02
PFTAND—Below MRL2025-06-02
PFTrDAND—Below MRL2025-06-02
NMeFOSAAND—Below MRL2025-06-02
PFHpSND—Below MRL2025-06-02
lithiumND—Below MRL2025-06-02
NEtFOSAAND—Below MRL2025-06-02
6:2 FTSND—Below MRL2025-06-02
PFBSND—Below MRL2025-06-02
9Cl-PF3ONSND—Below MRL2025-06-02
ADONAND—Below MRL2025-06-02
PFBAND—Below MRL2025-06-02
11Cl-PF3OUdSND—Below MRL2025-06-02
4:2 FTSND—Below MRL2025-06-02
8:2 FTSND—Below MRL2025-06-02
PFMPAND—Below MRL2025-06-02
PFPeAND—Below MRL2025-06-02
PFMBAND—Below MRL2025-06-02
PFEESAND—Below MRL2025-06-02
NFDHAND—Below MRL2025-06-02
PFPeSND—Below MRL2025-06-02
HFPO-DAND10Below MRL2025-06-02
PFNAND10Below MRL2025-09-15
PFDoAND—Below MRL2025-09-15
PFDAND—Below MRL2025-09-15
PFMPAND—Below MRL2025-09-15
PFOAND4Below MRL2025-09-15
PFOSND4Below MRL2025-09-15
PFTrDAND—Below MRL2025-09-15
PFHpSND—Below MRL2025-09-15
PFHxSND10Below MRL2025-09-15
PFHpAND—Below MRL2025-09-15
PFBSND—Below MRL2025-09-15
PFHxAND—Below MRL2025-09-15
NEtFOSAAND—Below MRL2025-09-15
4:2 FTSND—Below MRL2025-09-15
NMeFOSAAND—Below MRL2025-09-15
8:2 FTSND—Below MRL2025-09-15
lithiumND—Below MRL2025-09-15
PFPeSND—Below MRL2025-09-15
NFDHAND—Below MRL2025-09-15
PFEESAND—Below MRL2025-09-15
PFMBAND—Below MRL2025-09-15
PFBAND—Below MRL2025-09-15
PFPeAND—Below MRL2025-09-15
PFUnAND—Below MRL2025-09-15
6:2 FTSND—Below MRL2025-09-15
PFTAND—Below MRL2025-09-15
HFPO-DAND10Below MRL2025-09-15
ADONAND—Below MRL2025-09-15
9Cl-PF3ONSND—Below MRL2025-09-15
11Cl-PF3OUdSND—Below MRL2025-09-15

Next steps