PFAS Comply

SALISBURY TWP WATER SYSTEM

PWSID: PA3390062 · ALLENTOWN, PA · Serving 8,522 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

PFOA4.5 ppt(MCL: 4 ppt)
PFOS4.2 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
5.6 ppt
Highest single detection
2025-07-21
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFEESAND—Below MRL2025-10-20
HFPO-DAND10Below MRL2025-01-22
PFOAND4Below MRL2025-01-22
PFTAND—Below MRL2025-01-22
PFHpSND—Below MRL2025-01-22
PFPeSND—Below MRL2025-01-22
NFDHAND—Below MRL2025-01-22
PFEESAND—Below MRL2025-01-22
4:2 FTSND—Below MRL2025-01-22
PFBAND—Below MRL2025-01-22
ADONAND—Below MRL2025-01-22
9Cl-PF3ONSND—Below MRL2025-01-22
11Cl-PF3OUdSND—Below MRL2025-01-22
PFUnAND—Below MRL2025-01-22
PFTAND—Below MRL2025-10-20
HFPO-DAND10Below MRL2025-10-20
NEtFOSAAND—Below MRL2025-10-20
NMeFOSAAND—Below MRL2025-10-20
PFPeSND—Below MRL2025-10-20
NFDHAND—Below MRL2025-10-20
PFMBAND—Below MRL2025-10-20
8:2 FTSND—Below MRL2025-10-20
4:2 FTSND—Below MRL2025-10-20
6:2 FTSND—Below MRL2025-10-20
PFBAND—Below MRL2025-10-20
PFDoAND—Below MRL2025-01-22
NMeFOSAAND—Below MRL2025-01-22
PFTrDAND—Below MRL2025-01-22
6:2 FTSND—Below MRL2025-01-22
NEtFOSAAND—Below MRL2025-01-22
lithiumND—Below MRL2025-01-22
PFBSND—Below MRL2025-01-22
8:2 FTSND—Below MRL2025-01-22
PFMPAND—Below MRL2025-01-22
PFMBAND—Below MRL2025-01-22
PFHpAND—Below MRL2025-01-22
PFHxSND10Below MRL2025-01-22
PFNAND10Below MRL2025-01-22
PFDAND—Below MRL2025-01-22
PFPeSND—Below MRL2025-04-22
PFBAND—Below MRL2025-04-22
6:2 FTSND—Below MRL2025-04-22
4:2 FTSND—Below MRL2025-04-22
8:2 FTSND—Below MRL2025-04-22
PFMPAND—Below MRL2025-04-22
PFMBAND—Below MRL2025-04-22
lithiumND—Below MRL2025-04-22
NFDHAND—Below MRL2025-04-22
HFPO-DAND10Below MRL2025-04-22
PFHpSND—Below MRL2025-04-22
PFTAND—Below MRL2025-04-22
PFEESAND—Below MRL2025-04-22
9Cl-PF3ONSND—Below MRL2025-04-22
PFUnAND—Below MRL2025-04-22
PFDoAND—Below MRL2025-04-22
PFDAND—Below MRL2025-04-22
PFOAND4Below MRL2025-04-22
PFOSND4Below MRL2025-04-22
PFNAND10Below MRL2025-04-22
PFHxSND10Below MRL2025-04-22
PFHpAND—Below MRL2025-04-22
PFBSND—Below MRL2025-04-22
NMeFOSAAND—Below MRL2025-04-22
PFTrDAND—Below MRL2025-04-22
11Cl-PF3OUdSND—Below MRL2025-04-22
NEtFOSAAND—Below MRL2025-04-22
ADONAND—Below MRL2025-04-22
NFDHAND—Below MRL2025-07-21
6:2 FTSND—Below MRL2025-07-21
4:2 FTSND—Below MRL2025-07-21
PFHpSND—Below MRL2025-07-21
PFBSND—Below MRL2025-07-21
PFHpAND—Below MRL2025-07-21
PFMPAND—Below MRL2025-07-21
PFBAND—Below MRL2025-07-21
PFEESAND—Below MRL2025-07-21
8:2 FTSND—Below MRL2025-07-21
PFPeSND—Below MRL2025-07-21
lithiumND—Below MRL2025-07-21
NEtFOSAAND—Below MRL2025-07-21
PFTrDAND—Below MRL2025-07-21
PFTAND—Below MRL2025-07-21
PFMBAND—Below MRL2025-07-21
PFOAND4Below MRL2025-07-21
NMeFOSAAND—Below MRL2025-07-21
HFPO-DAND10Below MRL2025-07-21
PFOSND4Below MRL2025-07-21
PFHxSND10Below MRL2025-07-21
PFDAND—Below MRL2025-07-21
PFDoAND—Below MRL2025-07-21
PFUnAND—Below MRL2025-07-21
11Cl-PF3OUdSND—Below MRL2025-07-21
9Cl-PF3ONSND—Below MRL2025-07-21
ADONAND—Below MRL2025-07-21
PFNAND10Below MRL2025-07-21
11Cl-PF3OUdSND—Below MRL2025-10-20
9Cl-PF3ONSND—Below MRL2025-10-20
PFUnAND—Below MRL2025-10-20
PFDoAND—Below MRL2025-10-20
PFDAND—Below MRL2025-10-20
PFNAND10Below MRL2025-10-20
PFHxSND10Below MRL2025-10-20
lithiumND—Below MRL2025-10-20
PFMPAND—Below MRL2025-10-20
ADONAND—Below MRL2025-10-20
PFHpSND—Below MRL2025-10-20
PFHpAND—Below MRL2025-10-20
PFTrDAND—Below MRL2025-10-20
PFPeA5.6—2025-10-20
PFPeA4.7—2025-01-22
PFOA4.54Exceeds2025-10-20
PFPeA4.5—2025-07-21
PFPeA4.3—2025-04-22
PFOS4.24Exceeds2025-01-22
PFOS4.24Exceeds2025-10-20
PFHxA4.1—2025-10-20
PFHxA3.4—2025-01-22
PFHxA3.3—2025-07-21
PFBS3.2—2025-10-20
PFHxA3.2—2025-04-22

Next steps