PFAS Comply

ST HELENS, CITY OF

PWSID: OR4100724 · ST HELENS, OR · Serving 13,410 people

Type: CWSOwner: LSource: 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
15.5 ppt
Highest single detection
2025-08-19
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
HFPO-DAND10Below MRL2025-05-07
NMeFOSAAND—Below MRL2024-11-07
NEtFOSAAND—Below MRL2024-11-07
PFTrDAND—Below MRL2024-11-07
PFTAND—Below MRL2024-11-07
PFBSND—Below MRL2024-11-07
PFPeAND—Below MRL2024-11-07
PFMPAND—Below MRL2024-11-07
PFHpSND—Below MRL2024-11-07
NFDHAND—Below MRL2024-11-07
PFEESAND—Below MRL2024-11-07
PFMBAND—Below MRL2024-11-07
4:2 FTSND—Below MRL2024-11-07
6:2 FTSND—Below MRL2024-11-07
PFHxAND—Below MRL2024-11-07
8:2 FTSND—Below MRL2024-11-07
PFBAND—Below MRL2024-11-07
lithiumND—Below MRL2024-11-07
PFNAND10Below MRL2024-11-07
PFOAND4Below MRL2024-11-07
PFOSND4Below MRL2024-11-07
PFHxSND10Below MRL2024-11-07
PFDAND—Below MRL2024-11-07
PFHpAND—Below MRL2024-11-07
PFUnAND—Below MRL2024-11-07
11Cl-PF3OUdSND—Below MRL2024-11-07
9Cl-PF3ONSND—Below MRL2024-11-07
ADONAND—Below MRL2024-11-07
HFPO-DAND10Below MRL2024-11-07
PFDoAND—Below MRL2024-11-07
PFOAND4Below MRL2025-08-19
PFDAND—Below MRL2025-08-19
PFDoAND—Below MRL2025-08-19
PFHpAND—Below MRL2025-02-11
PFNAND10Below MRL2025-02-11
PFOSND4Below MRL2025-02-11
PFOAND4Below MRL2025-02-11
PFHxSND10Below MRL2025-02-11
lithiumND—Below MRL2025-02-11
NEtFOSAAND—Below MRL2025-02-11
PFTrDAND—Below MRL2025-02-11
PFTAND—Below MRL2025-02-11
PFDAND—Below MRL2025-02-11
PFBAND—Below MRL2025-02-11
NMeFOSAAND—Below MRL2025-02-11
PFMBAND—Below MRL2025-02-11
PFHpSND—Below MRL2025-02-11
PFPeSND—Below MRL2025-02-11
NFDHAND—Below MRL2025-02-11
ADONAND—Below MRL2025-02-11
PFEESAND—Below MRL2025-02-11
PFDoAND—Below MRL2025-02-11
PFPeAND—Below MRL2025-02-11
PFMPAND—Below MRL2025-02-11
8:2 FTSND—Below MRL2025-02-11
PFHxAND—Below MRL2025-02-11
6:2 FTSND—Below MRL2025-02-11
HFPO-DAND10Below MRL2025-02-11
9Cl-PF3ONSND—Below MRL2025-02-11
11Cl-PF3OUdSND—Below MRL2025-02-11
PFUnAND—Below MRL2025-02-11
4:2 FTSND—Below MRL2025-02-11
11Cl-PF3OUdSND—Below MRL2025-05-07
PFUnAND—Below MRL2025-05-07
PFHxAND—Below MRL2025-05-07
PFDoAND—Below MRL2025-05-07
PFDAND—Below MRL2025-05-07
PFOAND4Below MRL2025-05-07
PFOSND4Below MRL2025-05-07
PFNAND10Below MRL2025-05-07
PFHxSND10Below MRL2025-05-07
NFDHAND—Below MRL2025-05-07
PFHpSND—Below MRL2025-05-07
9Cl-PF3ONSND—Below MRL2025-05-07
PFEESAND—Below MRL2025-05-07
PFMBAND—Below MRL2025-05-07
PFHpAND—Below MRL2025-05-07
PFTAND—Below MRL2025-05-07
lithiumND—Below MRL2025-05-07
NMeFOSAAND—Below MRL2025-05-07
NEtFOSAAND—Below MRL2025-05-07
PFTrDAND—Below MRL2025-05-07
ADONAND—Below MRL2025-05-07
PFPeSND—Below MRL2025-05-07
6:2 FTSND—Below MRL2025-05-07
PFBAND—Below MRL2025-05-07
PFPeAND—Below MRL2025-05-07
4:2 FTSND—Below MRL2025-05-07
8:2 FTSND—Below MRL2025-05-07
PFMPAND—Below MRL2025-05-07
PFPeSND—Below MRL2024-11-07
PFMBAND—Below MRL2025-08-19
11Cl-PF3OUdSND—Below MRL2025-08-19
9Cl-PF3ONSND—Below MRL2025-08-19
ADONAND—Below MRL2025-08-19
HFPO-DAND10Below MRL2025-08-19
PFBAND—Below MRL2025-08-19
6:2 FTSND—Below MRL2025-08-19
PFMPAND—Below MRL2025-08-19
NFDHAND—Below MRL2025-08-19
PFUnAND—Below MRL2025-08-19
PFPeSND—Below MRL2025-08-19
8:2 FTSND—Below MRL2025-08-19
PFEESAND—Below MRL2025-08-19
4:2 FTSND—Below MRL2025-08-19
PFPeAND—Below MRL2025-08-19
lithiumND—Below MRL2025-08-19
PFTAND—Below MRL2025-08-19
NEtFOSAAND—Below MRL2025-08-19
PFHpSND—Below MRL2025-08-19
PFHxAND—Below MRL2025-08-19
NMeFOSAAND—Below MRL2025-08-19
PFTrDAND—Below MRL2025-08-19
PFHpAND—Below MRL2025-08-19
PFHxSND10Below MRL2025-08-19
PFNAND10Below MRL2025-08-19
PFOSND4Below MRL2025-08-19
PFBS15.5—2025-05-07
PFBS7.8—2025-08-19
PFBS3.4—2025-02-11

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