PFAS Comply

YNP-OLD FAITHFUL

PWSID: WY5680085 · YELLOWSTONE, WY · Serving 7,675 people

Type: CWSOwner: FSource: SW
Settlement eligible
May qualify for 3M/DuPont settlement funds
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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

1
PFAS compounds detected
120000 ppt
Highest single detection
2023-08-23
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFBAND—Below MRL2023-11-20
9Cl-PF3ONSND—Below MRL2023-02-27
PFBSND—Below MRL2023-02-27
PFHpSND—Below MRL2023-02-27
PFPeSND—Below MRL2023-02-27
NFDHAND—Below MRL2023-02-27
PFEESAND—Below MRL2023-02-27
PFMBAND—Below MRL2023-02-27
PFPeAND—Below MRL2023-02-27
PFMPAND—Below MRL2023-02-27
8:2 FTSND—Below MRL2023-02-27
4:2 FTSND—Below MRL2023-02-27
6:2 FTSND—Below MRL2023-02-27
PFBAND—Below MRL2023-02-27
ADONAND—Below MRL2023-02-27
PFOSND4Below MRL2023-02-27
PFMBAND—Below MRL2023-11-20
PFTAND—Below MRL2023-11-20
9Cl-PF3ONSND—Below MRL2023-11-20
PFHpAND—Below MRL2023-02-27
NMeFOSAAND—Below MRL2023-02-27
NEtFOSAAND—Below MRL2023-02-27
PFTrDAND—Below MRL2023-02-27
PFTAND—Below MRL2023-02-27
HFPO-DAND10Below MRL2023-02-27
PFNAND10Below MRL2023-02-27
11Cl-PF3OUdSND—Below MRL2023-02-27
PFOAND4Below MRL2023-02-27
PFDAND—Below MRL2023-02-27
PFDoAND—Below MRL2023-02-27
PFHxAND—Below MRL2023-02-27
PFUnAND—Below MRL2023-02-27
PFHxSND10Below MRL2023-02-27
6:2 FTSND—Below MRL2023-05-15
HFPO-DAND10Below MRL2023-05-15
PFHpAND—Below MRL2023-05-15
9Cl-PF3ONSND—Below MRL2023-05-15
NMeFOSAAND—Below MRL2023-05-15
NEtFOSAAND—Below MRL2023-05-15
PFTrDAND—Below MRL2023-05-15
PFTAND—Below MRL2023-05-15
NFDHAND—Below MRL2023-05-15
PFEESAND—Below MRL2023-05-15
PFMBAND—Below MRL2023-05-15
PFPeAND—Below MRL2023-05-15
PFMPAND—Below MRL2023-05-15
PFPeSND—Below MRL2023-05-15
ADONAND—Below MRL2023-05-15
4:2 FTSND—Below MRL2023-05-15
11Cl-PF3OUdSND—Below MRL2023-05-15
PFUnAND—Below MRL2023-05-15
PFHxAND—Below MRL2023-05-15
PFDoAND—Below MRL2023-05-15
PFDAND—Below MRL2023-05-15
PFOAND4Below MRL2023-05-15
PFOSND4Below MRL2023-05-15
PFNAND10Below MRL2023-05-15
PFHxSND10Below MRL2023-05-15
PFBSND—Below MRL2023-05-15
PFHpSND—Below MRL2023-05-15
8:2 FTSND—Below MRL2023-05-15
PFBAND—Below MRL2023-05-15
ADONAND—Below MRL2023-10-30
NMeFOSAAND—Below MRL2023-08-23
PFBSND—Below MRL2023-10-30
PFHpAND—Below MRL2023-10-30
PFHxSND10Below MRL2023-10-30
PFNAND10Below MRL2023-10-30
PFOSND4Below MRL2023-10-30
PFOAND4Below MRL2023-10-30
PFDAND—Below MRL2023-10-30
PFDoAND—Below MRL2023-10-30
PFHxAND—Below MRL2023-10-30
PFUnAND—Below MRL2023-10-30
PFTrDAND—Below MRL2023-08-23
9Cl-PF3ONSND—Below MRL2023-10-30
PFTAND—Below MRL2023-08-23
HFPO-DAND10Below MRL2023-10-30
PFBAND—Below MRL2023-10-30
6:2 FTSND—Below MRL2023-10-30
4:2 FTSND—Below MRL2023-10-30
8:2 FTSND—Below MRL2023-10-30
PFMPAND—Below MRL2023-10-30
PFPeAND—Below MRL2023-10-30
PFMBAND—Below MRL2023-10-30
PFEESAND—Below MRL2023-10-30
NFDHAND—Below MRL2023-10-30
PFPeSND—Below MRL2023-10-30
PFHpSND—Below MRL2023-10-30
11Cl-PF3OUdSND—Below MRL2023-10-30
NEtFOSAAND—Below MRL2023-08-23
NEtFOSAAND—Below MRL2023-11-20
PFTrDAND—Below MRL2023-11-20
PFHpAND—Below MRL2023-11-20
PFHxSND10Below MRL2023-11-20
PFNAND10Below MRL2023-11-20
PFOSND4Below MRL2023-11-20
PFOAND4Below MRL2023-11-20
PFDAND—Below MRL2023-11-20
PFDoAND—Below MRL2023-11-20
PFHxAND—Below MRL2023-11-20
PFUnAND—Below MRL2023-11-20
11Cl-PF3OUdSND—Below MRL2023-11-20
NMeFOSAAND—Below MRL2023-11-20
HFPO-DAND10Below MRL2023-11-20
ADONAND—Below MRL2023-11-20
6:2 FTSND—Below MRL2023-11-20
4:2 FTSND—Below MRL2023-11-20
8:2 FTSND—Below MRL2023-11-20
PFPeAND—Below MRL2023-11-20
PFEESAND—Below MRL2023-11-20
NFDHAND—Below MRL2023-11-20
PFPeSND—Below MRL2023-11-20
PFHpSND—Below MRL2023-11-20
PFBSND—Below MRL2023-11-20
PFMPAND—Below MRL2023-11-20
lithium120000—2023-02-27
lithium74800—2023-11-20
lithium63000—2023-05-15
lithium55700—2023-08-23

Next steps