PFAS Comply

FAIRCHILD AIR FORCE BASE

PWSID: WA5324350 · Fairchild AFB, WA · Serving 5,553 people

Type: CWSOwner: FSource: GW
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

PFOS7.9 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
17 ppt
Highest single detection
2025-07-22
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
HFPO-DAND10Below MRL2025-07-22
4:2 FTSND—Below MRL2025-01-21
8:2 FTSND—Below MRL2025-01-21
PFMPAND—Below MRL2025-01-21
NMeFOSAAND—Below MRL2025-07-22
PFTrDAND—Below MRL2025-07-22
PFTAND—Below MRL2025-07-22
8:2 FTSND—Below MRL2025-07-22
4:2 FTSND—Below MRL2025-07-22
6:2 FTSND—Below MRL2025-07-22
PFBAND—Below MRL2025-07-22
PFHpSND—Below MRL2025-01-21
PFMBAND—Below MRL2025-01-21
PFEESAND—Below MRL2025-01-21
PFTrDAND—Below MRL2025-01-21
PFPeSND—Below MRL2025-01-21
9Cl-PF3ONSND—Below MRL2025-01-21
lithiumND—Below MRL2025-01-21
PFTAND—Below MRL2025-01-21
NEtFOSAAND—Below MRL2025-01-21
6:2 FTSND—Below MRL2025-01-21
NMeFOSAAND—Below MRL2025-01-21
NFDHAND—Below MRL2025-01-21
PFBSND—Below MRL2025-01-21
PFHpAND—Below MRL2025-01-21
PFBAND—Below MRL2025-01-21
HFPO-DAND10Below MRL2025-01-21
PFNAND10Below MRL2025-01-21
PFOSND4Below MRL2025-01-21
PFOAND4Below MRL2025-01-21
PFDoAND—Below MRL2025-01-21
PFUnAND—Below MRL2025-01-21
11Cl-PF3OUdSND—Below MRL2025-01-21
ADONAND—Below MRL2025-01-21
PFDAND—Below MRL2025-01-21
lithiumND—Below MRL2025-07-22
6:2 FTSND—Below MRL2025-07-22
8:2 FTSND—Below MRL2025-07-22
PFPeAND—Below MRL2025-07-22
PFMBAND—Below MRL2025-07-22
PFEESAND—Below MRL2025-07-22
PFTAND—Below MRL2025-07-22
PFTrDAND—Below MRL2025-07-22
NMeFOSAAND—Below MRL2025-07-22
PFDoAND—Below MRL2025-07-22
4:2 FTSND—Below MRL2025-07-22
NEtFOSAAND—Below MRL2025-07-22
NFDHAND—Below MRL2025-07-22
PFHxAND—Below MRL2025-07-22
PFMPAND—Below MRL2025-07-22
PFDAND—Below MRL2025-07-22
9Cl-PF3ONSND—Below MRL2025-07-22
ADONAND—Below MRL2025-07-22
PFUnAND—Below MRL2025-07-22
PFBAND—Below MRL2025-07-22
11Cl-PF3OUdSND—Below MRL2025-07-22
PFPeSND—Below MRL2025-07-22
PFHpSND—Below MRL2025-07-22
PFBSND—Below MRL2025-07-22
PFHpAND—Below MRL2025-07-22
PFHxSND10Below MRL2025-07-22
PFNAND10Below MRL2025-07-22
PFOSND4Below MRL2025-07-22
PFOAND4Below MRL2025-07-22
HFPO-DAND10Below MRL2025-07-22
PFBAND—Below MRL2025-01-21
NMeFOSAAND—Below MRL2025-01-21
NEtFOSAAND—Below MRL2025-01-21
PFTrDAND—Below MRL2025-01-21
PFTAND—Below MRL2025-01-21
PFHpSND—Below MRL2025-01-21
PFPeSND—Below MRL2025-01-21
NFDHAND—Below MRL2025-01-21
PFEESAND—Below MRL2025-01-21
PFMBAND—Below MRL2025-01-21
PFPeAND—Below MRL2025-01-21
PFMPAND—Below MRL2025-01-21
8:2 FTSND—Below MRL2025-01-21
lithiumND—Below MRL2025-01-21
6:2 FTSND—Below MRL2025-01-21
PFOAND4Below MRL2025-01-21
HFPO-DAND10Below MRL2025-01-21
ADONAND—Below MRL2025-01-21
9Cl-PF3ONSND—Below MRL2025-01-21
11Cl-PF3OUdSND—Below MRL2025-01-21
PFUnAND—Below MRL2025-01-21
PFHxAND—Below MRL2025-01-21
PFDoAND—Below MRL2025-01-21
PFDAND—Below MRL2025-01-21
PFHpAND—Below MRL2025-01-21
PFBSND—Below MRL2025-01-21
4:2 FTSND—Below MRL2025-01-21
PFNAND10Below MRL2025-01-21
11Cl-PF3OUdSND—Below MRL2025-07-22
PFUnAND—Below MRL2025-07-22
PFHxAND—Below MRL2025-07-22
PFDoAND—Below MRL2025-07-22
PFDAND—Below MRL2025-07-22
PFOAND4Below MRL2025-07-22
9Cl-PF3ONSND—Below MRL2025-07-22
PFHpAND—Below MRL2025-07-22
PFPeSND—Below MRL2025-07-22
NFDHAND—Below MRL2025-07-22
PFEESAND—Below MRL2025-07-22
PFMBAND—Below MRL2025-07-22
PFPeAND—Below MRL2025-07-22
PFMPAND—Below MRL2025-07-22
lithiumND—Below MRL2025-07-22
PFNAND10Below MRL2025-07-22
NEtFOSAAND—Below MRL2025-07-22
ADONAND—Below MRL2025-07-22
PFHpSND—Below MRL2025-07-22
PFHxS1710Exceeds2025-07-22
PFHxS1610Exceeds2025-01-21
PFHxS8.410Detected2025-01-21
PFOS7.94Exceeds2025-07-22
PFOS4.54Exceeds2025-01-21
PFPeA3.6—2025-01-21
PFBS3.6—2025-07-22
PFHxA3.5—2025-01-21

Next steps