PFAS Comply

CHESTER WATER AUTHORITY

PWSID: PA1230004 · CHESTER, PA · Serving 140,437 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

PFOA5.1 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
5.1 ppt
Highest single detection
2024-08-08
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
NEtFOSAAND—Below MRL2024-08-08
PFEESAND—Below MRL2024-11-13
PFNAND10Below MRL2024-11-13
6:2 FTSND—Below MRL2024-11-13
PFOAND4Below MRL2024-11-13
PFDAND—Below MRL2024-11-13
PFDoAND—Below MRL2024-11-13
11Cl-PF3OUdSND—Below MRL2024-11-13
9Cl-PF3ONSND—Below MRL2024-11-13
ADONAND—Below MRL2024-11-13
HFPO-DAND10Below MRL2024-11-13
PFBAND—Below MRL2024-11-13
PFUnAND—Below MRL2024-11-13
PFHxSND10Below MRL2024-11-13
PFDAND—Below MRL2024-02-12
11Cl-PF3OUdSND—Below MRL2024-02-12
9Cl-PF3ONSND—Below MRL2024-02-12
ADONAND—Below MRL2024-02-12
PFMPAND—Below MRL2024-02-12
PFOSND4Below MRL2024-02-12
8:2 FTSND—Below MRL2024-02-12
PFDoAND—Below MRL2024-02-12
PFTAND—Below MRL2024-02-12
PFTrDAND—Below MRL2024-02-12
6:2 FTSND—Below MRL2024-02-12
NMeFOSAAND—Below MRL2024-02-12
4:2 FTSND—Below MRL2024-02-12
NEtFOSAAND—Below MRL2024-02-12
HFPO-DAND10Below MRL2024-02-12
PFUnAND—Below MRL2024-02-12
PFNAND10Below MRL2024-02-12
NFDHAND—Below MRL2024-02-12
PFEESAND—Below MRL2024-02-12
PFMBAND—Below MRL2024-02-12
lithiumND—Below MRL2024-02-12
PFHpSND—Below MRL2024-02-12
PFPeSND—Below MRL2024-02-12
PFHpAND—Below MRL2024-02-12
PFHxSND10Below MRL2024-02-12
HFPO-DAND10Below MRL2024-05-06
PFBAND—Below MRL2024-05-06
9Cl-PF3ONSND—Below MRL2024-05-06
11Cl-PF3OUdSND—Below MRL2024-05-06
PFUnAND—Below MRL2024-05-06
ADONAND—Below MRL2024-05-06
PFHpAND—Below MRL2024-05-06
PFHxSND10Below MRL2024-05-06
PFNAND10Below MRL2024-05-06
PFDAND—Below MRL2024-05-06
PFDoAND—Below MRL2024-05-06
6:2 FTSND—Below MRL2024-05-06
PFMBAND—Below MRL2024-05-06
PFOSND4Below MRL2024-05-06
PFMPAND—Below MRL2024-05-06
4:2 FTSND—Below MRL2024-05-06
lithiumND—Below MRL2024-05-06
NMeFOSAAND—Below MRL2024-05-06
NEtFOSAAND—Below MRL2024-05-06
PFTrDAND—Below MRL2024-05-06
PFTAND—Below MRL2024-05-06
PFPeSND—Below MRL2024-05-06
NFDHAND—Below MRL2024-05-06
PFEESAND—Below MRL2024-05-06
PFHpSND—Below MRL2024-05-06
8:2 FTSND—Below MRL2024-05-06
PFHpAND—Below MRL2024-08-08
PFBSND—Below MRL2024-08-08
11Cl-PF3OUdSND—Below MRL2024-08-08
PFUnAND—Below MRL2024-08-08
PFOSND4Below MRL2024-08-08
PFDAND—Below MRL2024-08-08
PFOAND4Below MRL2024-08-08
9Cl-PF3ONSND—Below MRL2024-08-08
PFNAND10Below MRL2024-08-08
PFMBAND—Below MRL2024-08-08
PFDoAND—Below MRL2024-08-08
ADONAND—Below MRL2024-08-08
HFPO-DAND10Below MRL2024-08-08
PFBAND—Below MRL2024-08-08
6:2 FTSND—Below MRL2024-08-08
4:2 FTSND—Below MRL2024-08-08
8:2 FTSND—Below MRL2024-08-08
PFEESAND—Below MRL2024-08-08
NFDHAND—Below MRL2024-08-08
PFPeSND—Below MRL2024-08-08
PFHpSND—Below MRL2024-08-08
PFHxSND10Below MRL2024-08-08
PFMPAND—Below MRL2024-08-08
PFTrDAND—Below MRL2024-08-08
PFTAND—Below MRL2024-08-08
NMeFOSAAND—Below MRL2024-08-08
lithiumND—Below MRL2024-08-08
PFBAND—Below MRL2024-02-12
PFTrDAND—Below MRL2024-11-13
8:2 FTSND—Below MRL2024-11-13
PFMPAND—Below MRL2024-11-13
PFMBAND—Below MRL2024-11-13
NFDHAND—Below MRL2024-11-13
PFPeSND—Below MRL2024-11-13
4:2 FTSND—Below MRL2024-11-13
PFTAND—Below MRL2024-11-13
NEtFOSAAND—Below MRL2024-11-13
NMeFOSAAND—Below MRL2024-11-13
lithiumND—Below MRL2024-11-13
PFHpSND—Below MRL2024-11-13
PFOSND4Below MRL2024-11-13
PFHpAND—Below MRL2024-11-13
PFOA5.14Exceeds2024-05-06
PFOA4.64Exceeds2024-02-12
PFBS4.5—2024-05-06
PFBS4.4—2024-02-12
PFPeA4.1—2024-08-08
PFPeA4—2024-05-06
PFHxA3.9—2024-05-06
PFHxA3.6—2024-02-12
PFHxA3.5—2024-08-08
PFPeA3.4—2024-02-12
PFPeA3.2—2024-11-13
PFBS3.2—2024-11-13
PFHxA3.2—2024-11-13

Next steps