PFAS Comply

SAMMAMISH PLATEAU WATER & SEWER

PWSID: WA5340900 · Sammamish, WA · Serving 79,362 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

PFOS11.1 ppt(MCL: 4 ppt)

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

Detection summary

6
PFAS compounds detected
16.5 ppt
Highest single detection
2023-08-07
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
9Cl-PF3ONSNDBelow MRL2023-11-21
6:2 FTSNDBelow MRL2023-05-15
4:2 FTSNDBelow MRL2023-05-15
8:2 FTSNDBelow MRL2023-05-15
PFMPANDBelow MRL2023-05-15
PFPeANDBelow MRL2023-05-15
PFMBANDBelow MRL2023-05-15
PFEESANDBelow MRL2023-05-15
PFPeSNDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
PFBANDBelow MRL2023-05-15
PFBANDBelow MRL2023-11-21
6:2 FTSNDBelow MRL2023-11-21
4:2 FTSNDBelow MRL2023-11-21
8:2 FTSNDBelow MRL2023-11-21
PFMPANDBelow MRL2023-11-21
HFPO-DAND10Below MRL2023-11-21
NFDHANDBelow MRL2023-11-21
PFEESANDBelow MRL2023-11-21
PFNAND10Below MRL2023-11-21
PFMBANDBelow MRL2023-11-21
PFHpANDBelow MRL2023-11-21
PFPeSNDBelow MRL2023-11-21
ADONANDBelow MRL2023-11-21
NMeFOSAANDBelow MRL2023-11-21
NEtFOSAANDBelow MRL2023-11-21
PFTrDANDBelow MRL2023-11-21
PFTANDBelow MRL2023-11-21
lithiumNDBelow MRL2023-11-21
PFUnANDBelow MRL2023-11-21
11Cl-PF3OUdSNDBelow MRL2023-11-21
PFDoANDBelow MRL2023-11-21
PFDANDBelow MRL2023-11-21
PFOAND4Below MRL2023-11-21
PFHpSNDBelow MRL2023-05-15
NFDHANDBelow MRL2023-05-15
HFPO-DAND10Below MRL2023-05-15
ADONANDBelow MRL2023-05-15
9Cl-PF3ONSNDBelow MRL2023-05-15
11Cl-PF3OUdSNDBelow MRL2023-05-15
PFHxANDBelow MRL2023-05-15
PFDANDBelow MRL2023-05-15
PFOAND4Below MRL2023-05-15
PFNAND10Below MRL2023-05-15
PFUnANDBelow MRL2023-05-15
PFHpANDBelow MRL2023-05-15
lithiumNDBelow MRL2023-05-15
PFTrDANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-05-15
NEtFOSAANDBelow MRL2023-05-15
PFDoANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-11-06
4:2 FTSNDBelow MRL2023-11-06
8:2 FTSNDBelow MRL2023-11-06
PFTANDBelow MRL2023-11-06
PFPeANDBelow MRL2023-11-06
PFEESANDBelow MRL2023-11-06
NFDHANDBelow MRL2023-11-06
6:2 FTSNDBelow MRL2023-11-06
PFPeSNDBelow MRL2023-11-06
PFMPANDBelow MRL2023-11-06
NEtFOSAANDBelow MRL2023-11-06
PFTrDANDBelow MRL2023-11-06
PFHpSNDBelow MRL2023-11-06
lithiumNDBelow MRL2023-11-06
PFNAND10Below MRL2023-11-06
PFHpANDBelow MRL2023-11-06
PFMBANDBelow MRL2023-11-06
PFOSND4Below MRL2023-11-06
PFOAND4Below MRL2023-11-06
PFDANDBelow MRL2023-11-06
PFDoANDBelow MRL2023-11-06
PFBANDBelow MRL2023-11-06
PFUnANDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-11-06
9Cl-PF3ONSNDBelow MRL2023-11-06
ADONANDBelow MRL2023-11-06
HFPO-DAND10Below MRL2023-11-06
PFHxANDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-05-15
PFUnANDBelow MRL2023-05-15
PFHxANDBelow MRL2023-05-15
PFDoANDBelow MRL2023-05-15
PFDANDBelow MRL2023-05-15
PFOAND4Below MRL2023-05-15
PFOSND4Below MRL2023-05-15
PFNAND10Below MRL2023-05-15
NMeFOSAANDBelow MRL2023-05-15
NEtFOSAANDBelow MRL2023-05-15
PFHpANDBelow MRL2023-05-15
PFBSNDBelow MRL2023-05-15
PFEESANDBelow MRL2023-05-15
PFHxSND10Below MRL2023-05-15
PFPeANDBelow MRL2023-05-15
PFTrDANDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
NFDHANDBelow MRL2023-05-15
PFHpSNDBelow MRL2023-05-15
PFMBANDBelow MRL2023-05-15
PFPeSNDBelow MRL2023-05-15
lithiumNDBelow MRL2023-05-15
9Cl-PF3ONSNDBelow MRL2023-05-15
PFMPANDBelow MRL2023-05-15
8:2 FTSNDBelow MRL2023-05-15
4:2 FTSNDBelow MRL2023-05-15
6:2 FTSNDBelow MRL2023-05-15
PFBANDBelow MRL2023-05-15
HFPO-DAND10Below MRL2023-05-15
ADONANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-08-07
9Cl-PF3ONSNDBelow MRL2023-08-07
lithiumNDBelow MRL2023-08-07
ADONANDBelow MRL2023-08-07
PFHpSNDBelow MRL2023-08-07
PFPeSNDBelow MRL2023-08-07
NFDHANDBelow MRL2023-08-07
PFEESANDBelow MRL2023-08-07
PFMBANDBelow MRL2023-08-07
PFPeANDBelow MRL2023-08-07
PFMPANDBelow MRL2023-08-07
8:2 FTSNDBelow MRL2023-08-07
4:2 FTSNDBelow MRL2023-08-07
6:2 FTSNDBelow MRL2023-08-07
PFBANDBelow MRL2023-08-07
PFUnANDBelow MRL2023-08-07
HFPO-DAND10Below MRL2023-08-07
NEtFOSAANDBelow MRL2023-08-07
11Cl-PF3OUdSNDBelow MRL2023-08-07
PFHxANDBelow MRL2023-08-07
PFDoANDBelow MRL2023-08-07
PFDANDBelow MRL2023-08-07
PFOAND4Below MRL2023-08-07
PFOSND4Below MRL2023-08-07
PFNAND10Below MRL2023-08-07
PFHpANDBelow MRL2023-08-07
PFBSNDBelow MRL2023-08-07
PFTANDBelow MRL2023-08-07
PFTrDANDBelow MRL2023-08-07
PFHpSNDBelow MRL2023-11-06
PFUnANDBelow MRL2023-11-06
PFPeSNDBelow MRL2023-11-06
lithiumNDBelow MRL2023-11-06
NFDHANDBelow MRL2023-11-06
PFMBANDBelow MRL2023-11-06
PFPeANDBelow MRL2023-11-06
PFMPANDBelow MRL2023-11-06
8:2 FTSNDBelow MRL2023-11-06
4:2 FTSNDBelow MRL2023-11-06
6:2 FTSNDBelow MRL2023-11-06
PFBANDBelow MRL2023-11-06
HFPO-DAND10Below MRL2023-11-06
ADONANDBelow MRL2023-11-06
PFEESANDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-11-06
NEtFOSAANDBelow MRL2023-11-14
PFHxANDBelow MRL2023-11-06
PFDoANDBelow MRL2023-11-06
PFDANDBelow MRL2023-11-06
PFOAND4Below MRL2023-11-06
PFNAND10Below MRL2023-11-06
PFHpANDBelow MRL2023-11-06
PFBSNDBelow MRL2023-11-06
NMeFOSAANDBelow MRL2023-11-14
PFTrDANDBelow MRL2023-11-14
PFTANDBelow MRL2023-11-14
9Cl-PF3ONSNDBelow MRL2023-11-06
PFHpANDBelow MRL2024-02-12
PFTANDBelow MRL2024-02-12
PFHxANDBelow MRL2024-02-12
PFUnANDBelow MRL2024-02-12
PFHpSNDBelow MRL2024-02-12
lithiumNDBelow MRL2024-02-12
PFOSND4Below MRL2024-02-12
PFBSNDBelow MRL2024-02-12
PFPeSNDBelow MRL2024-02-12
NFDHANDBelow MRL2024-02-12
PFEESANDBelow MRL2024-02-12
PFMBANDBelow MRL2024-02-12
PFPeANDBelow MRL2024-02-12
PFMPANDBelow MRL2024-02-12
PFDoANDBelow MRL2024-02-12
PFTrDANDBelow MRL2024-02-12
PFNAND10Below MRL2024-02-12
8:2 FTSNDBelow MRL2024-02-12
NMeFOSAANDBelow MRL2024-02-12
PFOAND4Below MRL2024-02-12
PFDANDBelow MRL2024-02-12
NEtFOSAANDBelow MRL2024-02-12
11Cl-PF3OUdSNDBelow MRL2024-02-12
9Cl-PF3ONSNDBelow MRL2024-02-12
ADONANDBelow MRL2024-02-12
HFPO-DAND10Below MRL2024-02-12
PFBANDBelow MRL2024-02-12
6:2 FTSNDBelow MRL2024-02-12
4:2 FTSNDBelow MRL2024-02-12
HFPO-DAND10Below MRL2023-05-15
ADONANDBelow MRL2023-05-15
PFPeANDBelow MRL2023-05-15
6:2 FTSNDBelow MRL2023-05-15
4:2 FTSNDBelow MRL2023-05-15
8:2 FTSNDBelow MRL2023-05-15
PFMPANDBelow MRL2023-05-15
PFBANDBelow MRL2023-05-15
PFMBANDBelow MRL2023-05-15
PFEESANDBelow MRL2023-05-15
PFPeSNDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
NEtFOSAANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-05-15
9Cl-PF3ONSNDBelow MRL2023-05-15
NFDHANDBelow MRL2023-05-15
PFTrDANDBelow MRL2023-05-15
PFHpANDBelow MRL2023-05-15
lithiumNDBelow MRL2023-05-15
PFHpSNDBelow MRL2023-05-15
11Cl-PF3OUdSNDBelow MRL2023-05-15
PFBSNDBelow MRL2023-05-15
PFHxSND10Below MRL2023-05-15
PFNAND10Below MRL2023-05-15
PFOSND4Below MRL2023-05-15
PFOAND4Below MRL2023-05-15
PFDANDBelow MRL2023-05-15
PFDoANDBelow MRL2023-05-15
PFHxANDBelow MRL2023-05-15
PFUnANDBelow MRL2023-05-15
NFDHANDBelow MRL2023-11-06
9Cl-PF3ONSNDBelow MRL2023-11-06
ADONANDBelow MRL2023-11-06
HFPO-DAND10Below MRL2023-11-06
PFBANDBelow MRL2023-11-06
6:2 FTSNDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-11-06
4:2 FTSNDBelow MRL2023-11-06
PFMPANDBelow MRL2023-11-06
PFUnANDBelow MRL2023-11-06
PFEESANDBelow MRL2023-11-06
8:2 FTSNDBelow MRL2023-11-06
PFPeSNDBelow MRL2023-11-06
PFHpSNDBelow MRL2023-11-06
PFMBANDBelow MRL2023-11-06
lithiumNDBelow MRL2023-11-06
PFHxANDBelow MRL2023-11-06
PFPeANDBelow MRL2023-11-06
NEtFOSAANDBelow MRL2023-11-06
PFTrDANDBelow MRL2023-11-06
PFTANDBelow MRL2023-11-06
NMeFOSAANDBelow MRL2023-11-06
PFBSNDBelow MRL2023-11-06
PFHpANDBelow MRL2023-11-06
PFHxSND10Below MRL2023-11-06
PFNAND10Below MRL2023-11-06
PFOSND4Below MRL2023-11-06
PFOAND4Below MRL2023-11-06
PFDANDBelow MRL2023-11-06
PFDoANDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-06-26
PFBANDBelow MRL2023-06-26
HFPO-DAND10Below MRL2023-06-26
ADONANDBelow MRL2023-06-26
9Cl-PF3ONSNDBelow MRL2023-06-26
6:2 FTSNDBelow MRL2023-06-26
PFUnANDBelow MRL2023-06-26
PFHxANDBelow MRL2023-06-26
PFDoANDBelow MRL2023-06-26
PFDANDBelow MRL2023-06-26
4:2 FTSNDBelow MRL2023-06-26
PFOSND4Below MRL2023-06-26
PFNAND10Below MRL2023-06-26
lithiumNDBelow MRL2023-05-15
PFOAND4Below MRL2023-06-26
PFTANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-05-15
PFHxSND10Below MRL2023-06-26
PFHpANDBelow MRL2023-06-26
PFBSNDBelow MRL2023-06-26
PFPeSNDBelow MRL2023-06-26
PFTrDANDBelow MRL2023-05-15
8:2 FTSNDBelow MRL2023-06-26
PFHpSNDBelow MRL2023-06-26
NFDHANDBelow MRL2023-06-26
PFEESANDBelow MRL2023-06-26
PFMBANDBelow MRL2023-06-26
PFPeANDBelow MRL2023-06-26
PFMPANDBelow MRL2023-06-26
NEtFOSAANDBelow MRL2023-05-15
PFBSNDBelow MRL2023-11-06
PFDoANDBelow MRL2023-11-06
PFMBANDBelow MRL2023-11-06
PFPeANDBelow MRL2023-11-06
PFHpANDBelow MRL2023-11-06
PFHxSND10Below MRL2023-11-06
PFNAND10Below MRL2023-11-06
PFOSND4Below MRL2023-11-06
PFDANDBelow MRL2023-11-06
PFHxANDBelow MRL2023-11-06
PFUnANDBelow MRL2023-11-06
11Cl-PF3OUdSNDBelow MRL2023-11-06
9Cl-PF3ONSNDBelow MRL2023-11-06
ADONANDBelow MRL2023-11-06
HFPO-DAND10Below MRL2023-11-06
PFHpSNDBelow MRL2023-11-06
lithiumNDBelow MRL2023-11-06
PFOAND4Below MRL2023-11-06
PFBANDBelow MRL2023-11-06
PFTrDANDBelow MRL2023-11-06
NEtFOSAANDBelow MRL2023-11-06
NMeFOSAANDBelow MRL2023-11-06
PFTANDBelow MRL2023-11-06
PFPeSNDBelow MRL2023-11-06
NFDHANDBelow MRL2023-11-06
PFEESANDBelow MRL2023-11-06
PFMPANDBelow MRL2023-11-06
8:2 FTSNDBelow MRL2023-11-06
4:2 FTSNDBelow MRL2023-11-06
6:2 FTSNDBelow MRL2023-11-06
HFPO-DAND10Below MRL2023-06-26
PFHxANDBelow MRL2023-06-26
9Cl-PF3ONSNDBelow MRL2023-06-26
11Cl-PF3OUdSNDBelow MRL2023-06-26
PFUnANDBelow MRL2023-06-26
ADONANDBelow MRL2023-06-26
PFDoANDBelow MRL2023-06-26
PFDANDBelow MRL2023-06-26
PFOAND4Below MRL2023-06-26
PFOSND4Below MRL2023-06-26
PFNAND10Below MRL2023-06-26
PFHpANDBelow MRL2023-06-26
PFBANDBelow MRL2023-06-26
NEtFOSAANDBelow MRL2023-05-15
PFEESANDBelow MRL2023-06-26
6:2 FTSNDBelow MRL2023-06-26
PFPeSNDBelow MRL2023-06-26
lithiumNDBelow MRL2023-05-15
PFHpSNDBelow MRL2023-06-26
PFMBANDBelow MRL2023-06-26
PFPeANDBelow MRL2023-06-26
NMeFOSAANDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
PFTrDANDBelow MRL2023-05-15
PFMPANDBelow MRL2023-06-26
8:2 FTSNDBelow MRL2023-06-26
4:2 FTSNDBelow MRL2023-06-26
NFDHANDBelow MRL2023-06-26
8:2 FTSNDBelow MRL2023-11-21
9Cl-PF3ONSNDBelow MRL2023-11-21
ADONANDBelow MRL2023-11-21
HFPO-DAND10Below MRL2023-11-21
6:2 FTSNDBelow MRL2023-11-21
PFMPANDBelow MRL2023-11-21
PFPeANDBelow MRL2023-11-21
PFMBANDBelow MRL2023-11-21
PFEESANDBelow MRL2023-11-21
NFDHANDBelow MRL2023-11-21
11Cl-PF3OUdSNDBelow MRL2023-11-21
PFHpSNDBelow MRL2023-11-21
PFBANDBelow MRL2023-11-21
PFPeSNDBelow MRL2023-11-21
NEtFOSAANDBelow MRL2023-11-21
4:2 FTSNDBelow MRL2023-11-21
PFUnANDBelow MRL2023-11-21
NMeFOSAANDBelow MRL2023-11-21
PFTrDANDBelow MRL2023-11-21
PFTANDBelow MRL2023-11-21
lithiumNDBelow MRL2023-11-21
PFHpANDBelow MRL2023-11-21
PFDoANDBelow MRL2023-11-21
PFNAND10Below MRL2023-11-21
PFOSND4Below MRL2023-11-21
PFOAND4Below MRL2023-11-21
PFDANDBelow MRL2023-11-21
PFHxANDBelow MRL2023-11-21
PFPeSNDBelow MRL2023-06-26
6:2 FTSNDBelow MRL2023-06-26
4:2 FTSNDBelow MRL2023-06-26
8:2 FTSNDBelow MRL2023-06-26
PFMPANDBelow MRL2023-06-26
PFPeANDBelow MRL2023-06-26
PFMBANDBelow MRL2023-06-26
PFHpSNDBelow MRL2023-06-26
NFDHANDBelow MRL2023-06-26
PFBANDBelow MRL2023-06-26
lithiumNDBelow MRL2023-05-15
PFEESANDBelow MRL2023-06-26
HFPO-DAND10Below MRL2023-06-26
ADONANDBelow MRL2023-06-26
9Cl-PF3ONSNDBelow MRL2023-06-26
11Cl-PF3OUdSNDBelow MRL2023-06-26
PFUnANDBelow MRL2023-06-26
PFDoANDBelow MRL2023-06-26
PFOAND4Below MRL2023-06-26
PFOSND4Below MRL2023-06-26
PFNAND10Below MRL2023-06-26
PFHxSND10Below MRL2023-06-26
PFHpANDBelow MRL2023-06-26
PFHxANDBelow MRL2023-06-26
PFBSNDBelow MRL2023-06-26
NEtFOSAANDBelow MRL2023-05-15
NMeFOSAANDBelow MRL2023-05-15
PFDANDBelow MRL2023-06-26
PFTrDANDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
PFEESANDBelow MRL2023-11-21
PFHxSND10Below MRL2023-11-21
PFDANDBelow MRL2023-11-21
PFDoANDBelow MRL2023-11-21
PFOSND4Below MRL2023-11-21
PFNAND10Below MRL2023-11-21
NMeFOSAANDBelow MRL2023-11-21
NEtFOSAANDBelow MRL2023-11-21
PFTrDANDBelow MRL2023-11-21
PFOAND4Below MRL2023-11-21
PFHpSNDBelow MRL2023-11-21
NFDHANDBelow MRL2023-11-21
PFTANDBelow MRL2023-11-21
PFMBANDBelow MRL2023-11-21
PFPeANDBelow MRL2023-11-21
ADONANDBelow MRL2023-11-21
PFHpANDBelow MRL2023-11-21
PFBSNDBelow MRL2023-11-21
PFHxANDBelow MRL2023-11-21
lithiumNDBelow MRL2023-11-21
PFUnANDBelow MRL2023-11-21
PFPeSNDBelow MRL2023-11-21
9Cl-PF3ONSNDBelow MRL2023-11-21
PFMPANDBelow MRL2023-11-21
HFPO-DAND10Below MRL2023-11-21
PFBANDBelow MRL2023-11-21
6:2 FTSNDBelow MRL2023-11-21
4:2 FTSNDBelow MRL2023-11-21
8:2 FTSNDBelow MRL2023-11-21
11Cl-PF3OUdSNDBelow MRL2023-11-21
PFBANDBelow MRL2023-06-26
6:2 FTSNDBelow MRL2023-06-26
4:2 FTSNDBelow MRL2023-06-26
8:2 FTSNDBelow MRL2023-06-26
PFMPANDBelow MRL2023-06-26
PFEESANDBelow MRL2023-06-26
NFDHANDBelow MRL2023-06-26
HFPO-DAND10Below MRL2023-06-26
PFNAND10Below MRL2023-06-26
PFMBANDBelow MRL2023-06-26
ADONANDBelow MRL2023-06-26
9Cl-PF3ONSNDBelow MRL2023-06-26
11Cl-PF3OUdSNDBelow MRL2023-06-26
PFUnANDBelow MRL2023-06-26
PFHpSNDBelow MRL2023-06-26
PFDoANDBelow MRL2023-06-26
PFDANDBelow MRL2023-06-26
PFHpANDBelow MRL2023-06-26
lithiumNDBelow MRL2023-05-15
PFOAND4Below MRL2023-06-26
NMeFOSAANDBelow MRL2023-05-15
NEtFOSAANDBelow MRL2023-05-15
PFTrDANDBelow MRL2023-05-15
PFTANDBelow MRL2023-05-15
PFHpSNDBelow MRL2023-11-21
PFHxS16.510Exceeds2023-06-26
PFHxS13.110Exceeds2023-11-21
PFOS11.14Exceeds2023-06-26
PFBS8.82023-06-26
PFOS8.24Exceeds2023-11-21
PFHxS7.110Detected2023-05-15
PFHxS6.810Detected2023-11-21
PFBS6.72023-11-21
PFHxS610Detected2023-06-26
PFBS5.32023-11-21
PFBS5.32023-06-26
PFOS4.34Exceeds2023-05-15
PFHxA4.32023-06-26
PFHxS4.310Detected2023-11-06
PFOS4.24Exceeds2023-11-06
PFPeS4.12023-06-26
PFBS42023-05-15
PFPeA3.92023-06-26
PFHxS3.710Detected2023-08-07
PFBS3.52023-11-06
PFHxS3.410Detected2024-02-12
PFHxA3.22023-11-21
PFHxS3.110Detected2023-11-06
PFPeA32023-11-21

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