PFAS Comply

MT WASHINGTON WATER COMPANY

PWSID: KY0150300 · MT WASHINGTON, KY · Serving 23,760 people

Type: CWSOwner: PSource: 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

PFOA7.2 ppt(MCL: 4 ppt)

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

Detection summary

2
PFAS compounds detected
7.2 ppt
Highest single detection
2025-08-26
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
lithiumND—Below MRL2025-11-04
PFBSND—Below MRL2025-06-05
PFHpAND—Below MRL2025-06-05
PFHpSND—Below MRL2025-06-05
PFNAND10Below MRL2025-06-05
NMeFOSAAND—Below MRL2025-06-05
PFOAND4Below MRL2025-06-05
PFDAND—Below MRL2025-06-05
PFDoAND—Below MRL2025-06-05
PFHxAND—Below MRL2025-06-05
PFUnAND—Below MRL2025-06-05
11Cl-PF3OUdSND—Below MRL2025-06-05
9Cl-PF3ONSND—Below MRL2025-06-05
PFHxSND10Below MRL2025-06-05
PFPeSND—Below MRL2025-06-05
HFPO-DAND10Below MRL2025-06-05
PFTrDAND—Below MRL2025-06-05
PFBAND—Below MRL2025-06-05
NFDHAND—Below MRL2025-06-05
NEtFOSAAND—Below MRL2025-06-05
ADONAND—Below MRL2025-06-05
PFEESAND—Below MRL2025-06-05
PFMBAND—Below MRL2025-06-05
PFPeAND—Below MRL2025-06-05
PFMPAND—Below MRL2025-06-05
8:2 FTSND—Below MRL2025-06-05
4:2 FTSND—Below MRL2025-06-05
6:2 FTSND—Below MRL2025-06-05
lithiumND—Below MRL2025-06-05
PFTAND—Below MRL2025-06-05
PFPeAND—Below MRL2025-08-26
PFHxAND—Below MRL2025-08-26
PFUnAND—Below MRL2025-08-26
11Cl-PF3OUdSND—Below MRL2025-08-26
ADONAND—Below MRL2025-08-26
PFBAND—Below MRL2025-08-26
6:2 FTSND—Below MRL2025-08-26
4:2 FTSND—Below MRL2025-08-26
PFDoAND—Below MRL2025-08-26
PFMPAND—Below MRL2025-08-26
9Cl-PF3ONSND—Below MRL2025-08-26
PFMBAND—Below MRL2025-08-26
PFEESAND—Below MRL2025-08-26
NFDHAND—Below MRL2025-08-26
PFPeSND—Below MRL2025-08-26
PFHpSND—Below MRL2025-08-26
NMeFOSAAND—Below MRL2025-08-26
lithiumND—Below MRL2025-08-26
8:2 FTSND—Below MRL2025-08-26
PFTrDAND—Below MRL2025-08-26
HFPO-DAND10Below MRL2025-08-26
PFDAND—Below MRL2025-08-26
PFTAND—Below MRL2025-08-26
NEtFOSAAND—Below MRL2025-08-26
PFHpAND—Below MRL2025-08-26
PFHxSND10Below MRL2025-08-26
PFNAND10Below MRL2025-08-26
PFOSND4Below MRL2025-08-26
NMeFOSAAND—Below MRL2025-11-04
PFHpAND—Below MRL2025-11-04
PFOSND4Below MRL2025-06-05
PFBSND—Below MRL2025-08-26
PFBAND—Below MRL2025-11-04
PFMBAND—Below MRL2025-11-04
9Cl-PF3ONSND—Below MRL2025-11-04
PFDAND—Below MRL2025-11-04
6:2 FTSND—Below MRL2025-11-04
PFDoAND—Below MRL2025-11-04
PFHxAND—Below MRL2025-11-04
PFUnAND—Below MRL2025-11-04
11Cl-PF3OUdSND—Below MRL2025-11-04
ADONAND—Below MRL2025-11-04
4:2 FTSND—Below MRL2025-11-04
HFPO-DAND10Below MRL2025-11-04
8:2 FTSND—Below MRL2025-11-04
PFEESAND—Below MRL2025-11-04
NFDHAND—Below MRL2025-11-04
PFPeSND—Below MRL2025-11-04
PFBSND—Below MRL2025-11-04
PFOSND4Below MRL2025-11-04
PFMPAND—Below MRL2025-11-04
PFNAND10Below MRL2025-11-04
PFHpSND—Below MRL2025-11-04
PFHxSND10Below MRL2025-11-04
PFTAND—Below MRL2025-11-04
PFTrDAND—Below MRL2025-11-04
NEtFOSAAND—Below MRL2025-11-04
PFOA7.24Exceeds2025-08-26
PFOA4.24Exceeds2025-11-04
PFPeA4.1—2025-11-04

Next steps