PFAS Comply

CONTRA COSTA WATER DISTRICT

PWSID: CA0710003 · CONCORD, CA · Serving 198,000 people

Type: CWSOwner: LSource: SW
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

0
PFAS compounds detected
N/A ppt
Highest single detection
2023-09-29
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
ADONAND—Below MRL2023-03-16
9Cl-PF3ONSND—Below MRL2023-03-16
lithiumND—Below MRL2023-03-16
PFBSND—Below MRL2023-03-16
PFHpAND—Below MRL2023-03-16
PFHxSND10Below MRL2023-03-16
PFNAND10Below MRL2023-03-16
PFDoAND—Below MRL2023-03-16
PFOAND4Below MRL2023-03-16
PFDAND—Below MRL2023-03-16
HFPO-DAND10Below MRL2023-03-16
PFEESAND—Below MRL2023-03-16
PFHxAND—Below MRL2023-03-16
PFOSND4Below MRL2023-03-16
PFBAND—Below MRL2023-03-16
6:2 FTSND—Below MRL2023-03-16
4:2 FTSND—Below MRL2023-03-16
PFUnAND—Below MRL2023-03-16
8:2 FTSND—Below MRL2023-03-16
PFMPAND—Below MRL2023-03-16
PFMBAND—Below MRL2023-03-16
PFHpSND—Below MRL2023-03-16
NFDHAND—Below MRL2023-03-16
PFPeSND—Below MRL2023-03-16
11Cl-PF3OUdSND—Below MRL2023-03-16
PFPeAND—Below MRL2023-03-16
PFTrDAND—Below MRL2023-03-30
NMeFOSAAND—Below MRL2023-03-30
NEtFOSAAND—Below MRL2023-03-30
PFTAND—Below MRL2023-03-30
PFHxAND—Below MRL2023-06-01
PFBAND—Below MRL2023-06-01
HFPO-DAND10Below MRL2023-06-01
PFHpSND—Below MRL2023-06-01
4:2 FTSND—Below MRL2023-06-01
PFPeAND—Below MRL2023-06-01
PFMPAND—Below MRL2023-06-01
PFMBAND—Below MRL2023-06-01
6:2 FTSND—Below MRL2023-06-01
ADONAND—Below MRL2023-06-01
9Cl-PF3ONSND—Below MRL2023-06-01
11Cl-PF3OUdSND—Below MRL2023-06-01
PFUnAND—Below MRL2023-06-01
PFEESAND—Below MRL2023-06-01
NFDHAND—Below MRL2023-06-01
PFPeSND—Below MRL2023-06-01
8:2 FTSND—Below MRL2023-06-01
PFDAND—Below MRL2023-06-01
PFDoAND—Below MRL2023-06-01
lithiumND—Below MRL2023-06-01
PFTAND—Below MRL2023-06-01
PFTrDAND—Below MRL2023-06-01
NEtFOSAAND—Below MRL2023-06-01
PFBSND—Below MRL2023-06-01
PFHpAND—Below MRL2023-06-01
PFHxSND10Below MRL2023-06-01
PFNAND10Below MRL2023-06-01
PFOSND4Below MRL2023-06-01
PFOAND4Below MRL2023-06-01
NMeFOSAAND—Below MRL2023-06-01
NEtFOSAAND—Below MRL2023-09-11
NMeFOSAAND—Below MRL2023-09-11
PFTrDAND—Below MRL2023-09-11
PFTAND—Below MRL2023-09-11
PFHpAND—Below MRL2023-09-11
11Cl-PF3OUdSND—Below MRL2023-09-11
PFUnAND—Below MRL2023-09-11
PFHxAND—Below MRL2023-09-11
PFDoAND—Below MRL2023-09-11
PFDAND—Below MRL2023-09-11
PFOAND4Below MRL2023-09-11
PFOSND4Below MRL2023-09-11
PFHpSND—Below MRL2023-09-11
PFHxSND10Below MRL2023-09-11
9Cl-PF3ONSND—Below MRL2023-09-11
PFMBAND—Below MRL2023-09-11
PFNAND10Below MRL2023-09-11
ADONAND—Below MRL2023-09-11
HFPO-DAND10Below MRL2023-09-11
PFBAND—Below MRL2023-09-11
6:2 FTSND—Below MRL2023-09-11
4:2 FTSND—Below MRL2023-09-11
8:2 FTSND—Below MRL2023-09-11
PFPeAND—Below MRL2023-09-11
PFBSND—Below MRL2023-09-11
PFEESAND—Below MRL2023-09-11
NFDHAND—Below MRL2023-09-11
PFPeSND—Below MRL2023-09-11
lithiumND—Below MRL2023-09-11
PFMPAND—Below MRL2023-09-11
PFMBAND—Below MRL2023-12-13
ADONAND—Below MRL2023-12-13
PFOSND4Below MRL2023-12-13
PFHxSND10Below MRL2023-12-13
PFBSND—Below MRL2023-12-13
PFBAND—Below MRL2023-12-13
PFPeSND—Below MRL2023-12-13
9Cl-PF3ONSND—Below MRL2023-12-13
PFEESAND—Below MRL2023-12-13
PFHpAND—Below MRL2023-12-13
PFPeAND—Below MRL2023-12-13
PFMPAND—Below MRL2023-12-13
8:2 FTSND—Below MRL2023-12-13
4:2 FTSND—Below MRL2023-12-13
6:2 FTSND—Below MRL2023-12-13
PFOAND4Below MRL2023-12-13
HFPO-DAND10Below MRL2023-12-13
NFDHAND—Below MRL2023-12-13
PFUnAND—Below MRL2023-12-13
PFHxAND—Below MRL2023-12-13
PFDoAND—Below MRL2023-12-13
PFNAND10Below MRL2023-12-13
PFHpSND—Below MRL2023-12-13
PFDAND—Below MRL2023-12-13
11Cl-PF3OUdSND—Below MRL2023-12-13
PFTAND—Below MRL2023-12-13
NMeFOSAAND—Below MRL2023-12-13
NEtFOSAAND—Below MRL2023-12-13
lithiumND—Below MRL2023-12-13
PFTrDAND—Below MRL2023-12-13
PFDoAND—Below MRL2023-03-16
PFHxSND10Below MRL2023-03-16
9Cl-PF3ONSND—Below MRL2023-03-16
NMeFOSAAND—Below MRL2023-03-30
PFNAND10Below MRL2023-03-16
NFDHAND—Below MRL2023-03-16
PFOSND4Below MRL2023-03-16
PFHpAND—Below MRL2023-03-16
PFDAND—Below MRL2023-03-16
PFPeAND—Below MRL2023-03-16
PFHxAND—Below MRL2023-03-16
PFHpSND—Below MRL2023-03-16
11Cl-PF3OUdSND—Below MRL2023-03-16
PFOAND4Below MRL2023-03-16
4:2 FTSND—Below MRL2023-03-16
PFBSND—Below MRL2023-03-16
PFUnAND—Below MRL2023-03-16
PFTrDAND—Below MRL2023-03-30
PFPeSND—Below MRL2023-03-16
HFPO-DAND10Below MRL2023-03-16
PFMBAND—Below MRL2023-03-16
6:2 FTSND—Below MRL2023-03-16
ADONAND—Below MRL2023-03-16
8:2 FTSND—Below MRL2023-03-16
PFMPAND—Below MRL2023-03-16
PFTAND—Below MRL2023-03-30
NEtFOSAAND—Below MRL2023-03-30
lithiumND—Below MRL2023-03-16
PFEESAND—Below MRL2023-03-16
PFBAND—Below MRL2023-03-16
PFDoAND—Below MRL2023-06-01
PFDAND—Below MRL2023-06-01
PFTAND—Below MRL2023-06-01
PFBSND—Below MRL2023-06-01
NEtFOSAAND—Below MRL2023-06-01
NMeFOSAAND—Below MRL2023-06-01
PFOAND4Below MRL2023-06-01
PFOSND4Below MRL2023-06-01
PFNAND10Below MRL2023-06-01
PFHxSND10Below MRL2023-06-01
PFHpAND—Below MRL2023-06-01
PFHxAND—Below MRL2023-06-01
6:2 FTSND—Below MRL2023-06-01
lithiumND—Below MRL2023-06-01
PFTrDAND—Below MRL2023-06-01
8:2 FTSND—Below MRL2023-06-01
PFHpSND—Below MRL2023-06-01
PFPeSND—Below MRL2023-06-01
NFDHAND—Below MRL2023-06-01
PFEESAND—Below MRL2023-06-01
PFMBAND—Below MRL2023-06-01
HFPO-DAND10Below MRL2023-06-01
PFMPAND—Below MRL2023-06-01
PFUnAND—Below MRL2023-06-01
4:2 FTSND—Below MRL2023-06-01
PFBAND—Below MRL2023-06-01
ADONAND—Below MRL2023-06-01
9Cl-PF3ONSND—Below MRL2023-06-01
11Cl-PF3OUdSND—Below MRL2023-06-01
PFPeAND—Below MRL2023-06-01
PFPeAND—Below MRL2023-09-29
lithiumND—Below MRL2023-09-11
NEtFOSAAND—Below MRL2023-09-11
9Cl-PF3ONSND—Below MRL2023-09-29
PFUnAND—Below MRL2023-09-29
PFEESAND—Below MRL2023-09-29
PFDoAND—Below MRL2023-09-29
PFDAND—Below MRL2023-09-29
PFOAND4Below MRL2023-09-29
PFOSND4Below MRL2023-09-29
PFNAND10Below MRL2023-09-29
PFHxSND10Below MRL2023-09-29
PFHpAND—Below MRL2023-09-29
ADONAND—Below MRL2023-09-29
NMeFOSAAND—Below MRL2023-09-11
11Cl-PF3OUdSND—Below MRL2023-09-29
PFTrDAND—Below MRL2023-09-11
PFBAND—Below MRL2023-09-29
PFHpSND—Below MRL2023-09-29
PFPeSND—Below MRL2023-09-29
NFDHAND—Below MRL2023-09-29
PFMBAND—Below MRL2023-09-29
PFMPAND—Below MRL2023-09-29
8:2 FTSND—Below MRL2023-09-29
4:2 FTSND—Below MRL2023-09-29
6:2 FTSND—Below MRL2023-09-29
PFTAND—Below MRL2023-09-11
PFBSND—Below MRL2023-09-29
PFHxAND—Below MRL2023-09-29
HFPO-DAND10Below MRL2023-09-29
NFDHAND—Below MRL2023-12-01
PFTAND—Below MRL2023-12-01
PFTrDAND—Below MRL2023-12-01
NEtFOSAAND—Below MRL2023-12-01
NMeFOSAAND—Below MRL2023-12-01
PFHpSND—Below MRL2023-12-01
PFDoAND—Below MRL2023-12-01
PFEESAND—Below MRL2023-12-01
PFMBAND—Below MRL2023-12-01
PFMPAND—Below MRL2023-12-01
8:2 FTSND—Below MRL2023-12-01
4:2 FTSND—Below MRL2023-12-01
6:2 FTSND—Below MRL2023-12-01
PFHxSND10Below MRL2023-12-01
PFBSND—Below MRL2023-12-01
PFNAND10Below MRL2023-12-01
PFBAND—Below MRL2023-12-01
PFOSND4Below MRL2023-12-01
PFOAND4Below MRL2023-12-01
PFUnAND—Below MRL2023-12-01
lithiumND—Below MRL2023-12-01
PFPeSND—Below MRL2023-12-01
PFDAND—Below MRL2023-12-01
PFHpAND—Below MRL2023-12-01
ADONAND—Below MRL2023-12-01
9Cl-PF3ONSND—Below MRL2023-12-01
11Cl-PF3OUdSND—Below MRL2023-12-01
PFHxAND—Below MRL2023-12-01
HFPO-DAND10Below MRL2023-12-01
PFPeAND—Below MRL2023-12-01
PFBSND—Below MRL2023-03-16
9Cl-PF3ONSND—Below MRL2023-03-16
PFUnAND—Below MRL2023-03-16
PFDoAND—Below MRL2023-03-16
PFDAND—Below MRL2023-03-16
PFOAND4Below MRL2023-03-16
PFOSND4Below MRL2023-03-16
PFNAND10Below MRL2023-03-16
PFTrDAND—Below MRL2023-03-30
PFHpAND—Below MRL2023-03-16
NMeFOSAAND—Below MRL2023-03-30
NEtFOSAAND—Below MRL2023-03-30
ADONAND—Below MRL2023-03-16
11Cl-PF3OUdSND—Below MRL2023-03-16
PFTAND—Below MRL2023-03-30
PFHxSND10Below MRL2023-03-16
NFDHAND—Below MRL2023-03-16
lithiumND—Below MRL2023-03-16
PFHxAND—Below MRL2023-03-16
HFPO-DAND10Below MRL2023-03-16
PFPeSND—Below MRL2023-03-16
PFEESAND—Below MRL2023-03-16
PFMBAND—Below MRL2023-03-16
PFPeAND—Below MRL2023-03-16
PFMPAND—Below MRL2023-03-16
8:2 FTSND—Below MRL2023-03-16
4:2 FTSND—Below MRL2023-03-16
6:2 FTSND—Below MRL2023-03-16
PFBAND—Below MRL2023-03-16
PFHpSND—Below MRL2023-03-16
NFDHAND—Below MRL2023-06-01
9Cl-PF3ONSND—Below MRL2023-06-01
ADONAND—Below MRL2023-06-01
HFPO-DAND10Below MRL2023-06-01
PFBAND—Below MRL2023-06-01
6:2 FTSND—Below MRL2023-06-01
PFHpSND—Below MRL2023-06-01
8:2 FTSND—Below MRL2023-06-01
PFPeAND—Below MRL2023-06-01
11Cl-PF3OUdSND—Below MRL2023-06-01
PFEESAND—Below MRL2023-06-01
PFHxSND10Below MRL2023-06-01
PFPeSND—Below MRL2023-06-01
PFMBAND—Below MRL2023-06-01
PFUnAND—Below MRL2023-06-01
PFHxAND—Below MRL2023-06-01
PFDoAND—Below MRL2023-06-01
PFDAND—Below MRL2023-06-01
PFOAND4Below MRL2023-06-01
PFNAND10Below MRL2023-06-01
PFHpAND—Below MRL2023-06-01
PFMPAND—Below MRL2023-06-01
PFTAND—Below MRL2023-06-01
PFTrDAND—Below MRL2023-06-01
PFBSND—Below MRL2023-06-01
NEtFOSAAND—Below MRL2023-06-01
NMeFOSAAND—Below MRL2023-06-01
PFOSND4Below MRL2023-06-01
4:2 FTSND—Below MRL2023-06-01
lithiumND—Below MRL2023-06-01
HFPO-DAND10Below MRL2023-09-11
PFHpAND—Below MRL2023-09-11
PFHxSND10Below MRL2023-09-11
PFNAND10Below MRL2023-09-11
4:2 FTSND—Below MRL2023-09-11
PFOSND4Below MRL2023-09-11
PFOAND4Below MRL2023-09-11
PFDAND—Below MRL2023-09-11
PFDoAND—Below MRL2023-09-11
PFHxAND—Below MRL2023-09-11
PFUnAND—Below MRL2023-09-11
11Cl-PF3OUdSND—Below MRL2023-09-11
PFBSND—Below MRL2023-09-11
ADONAND—Below MRL2023-09-11
PFMBAND—Below MRL2023-09-11
8:2 FTSND—Below MRL2023-09-11
PFMPAND—Below MRL2023-09-11
PFPeAND—Below MRL2023-09-11
PFEESAND—Below MRL2023-09-11
PFHpSND—Below MRL2023-09-11
lithiumND—Below MRL2023-09-11
NMeFOSAAND—Below MRL2023-09-11
NEtFOSAAND—Below MRL2023-09-11
PFTrDAND—Below MRL2023-09-11
PFTAND—Below MRL2023-09-11
9Cl-PF3ONSND—Below MRL2023-09-11
NFDHAND—Below MRL2023-09-11
PFPeSND—Below MRL2023-09-11
6:2 FTSND—Below MRL2023-09-11
PFBAND—Below MRL2023-09-11
PFBSND—Below MRL2023-12-01
8:2 FTSND—Below MRL2023-12-01
PFMPAND—Below MRL2023-12-01
PFPeAND—Below MRL2023-12-01
PFMBAND—Below MRL2023-12-01
PFEESAND—Below MRL2023-12-01
NFDHAND—Below MRL2023-12-01
4:2 FTSND—Below MRL2023-12-01
PFHpSND—Below MRL2023-12-01
NMeFOSAAND—Below MRL2023-12-01
NEtFOSAAND—Below MRL2023-12-01
PFTAND—Below MRL2023-12-01
PFPeSND—Below MRL2023-12-01
PFOSND4Below MRL2023-12-01
PFTrDAND—Below MRL2023-12-01
6:2 FTSND—Below MRL2023-12-01
lithiumND—Below MRL2023-12-01
PFHpAND—Below MRL2023-12-01
PFNAND10Below MRL2023-12-01
PFOAND4Below MRL2023-12-01
PFDAND—Below MRL2023-12-01
PFDoAND—Below MRL2023-12-01
PFHxSND10Below MRL2023-12-01
PFHxAND—Below MRL2023-12-01
PFUnAND—Below MRL2023-12-01
11Cl-PF3OUdSND—Below MRL2023-12-01
9Cl-PF3ONSND—Below MRL2023-12-01
PFBAND—Below MRL2023-12-01
ADONAND—Below MRL2023-12-01
HFPO-DAND10Below MRL2023-12-01

Next steps