PFAS Comply

WESTLAKE CITY OF WATER SYSTEM

PWSID: LA1019054 · WESTLAKE, LA · Serving 4,858 people

Type: CWSOwner: LSource: GW
Settlement eligible
May qualify for 3M/DuPont settlement funds
Check claims portal →
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
18900 ppt
Highest single detection
2025-08-06
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFTAND—Below MRL2024-11-04
NEtFOSAAND—Below MRL2025-10-07
NMeFOSAAND—Below MRL2025-10-07
PFTAND—Below MRL2025-10-07
PFTAND—Below MRL2025-08-06
HFPO-DAND10Below MRL2025-08-06
PFOSND4Below MRL2025-08-06
6:2 FTSND—Below MRL2025-08-06
PFPeSND—Below MRL2025-08-06
PFHpAND—Below MRL2025-08-06
PFNAND10Below MRL2025-08-06
9Cl-PF3ONSND—Below MRL2025-08-06
ADONAND—Below MRL2025-08-06
PFHpSND—Below MRL2025-08-06
PFOAND4Below MRL2025-08-06
PFDAND—Below MRL2025-08-06
PFDoAND—Below MRL2025-08-06
PFHxAND—Below MRL2025-08-06
PFMBAND—Below MRL2025-08-06
11Cl-PF3OUdSND—Below MRL2025-08-06
PFBSND—Below MRL2025-08-06
PFBAND—Below MRL2025-08-06
4:2 FTSND—Below MRL2025-08-06
8:2 FTSND—Below MRL2025-08-06
PFMPAND—Below MRL2025-08-06
NFDHAND—Below MRL2025-08-06
PFPeAND—Below MRL2025-08-06
PFEESAND—Below MRL2025-08-06
PFHxSND10Below MRL2025-08-06
PFUnAND—Below MRL2025-08-06
NEtFOSAAND—Below MRL2025-08-06
NMeFOSAAND—Below MRL2025-08-06
PFOSND4Below MRL2024-11-04
PFOAND4Below MRL2024-11-04
PFDAND—Below MRL2024-11-04
PFDoAND—Below MRL2024-11-04
PFTrDAND—Below MRL2025-10-07
PFTrDAND—Below MRL2025-08-06
PFOAND4Below MRL2024-04-10
ADONAND—Below MRL2024-04-10
9Cl-PF3ONSND—Below MRL2024-04-10
11Cl-PF3OUdSND—Below MRL2024-04-10
PFUnAND—Below MRL2024-04-10
PFHxAND—Below MRL2024-04-10
HFPO-DAND10Below MRL2024-04-10
PFDAND—Below MRL2024-04-10
8:2 FTSND—Below MRL2024-04-10
PFOSND4Below MRL2024-04-10
PFNAND10Below MRL2024-04-10
PFDoAND—Below MRL2024-04-10
PFBAND—Below MRL2024-04-10
PFHpAND—Below MRL2024-04-10
4:2 FTSND—Below MRL2024-04-10
PFBSND—Below MRL2024-04-10
PFMPAND—Below MRL2024-04-10
PFPeAND—Below MRL2024-04-10
PFMBAND—Below MRL2024-04-10
PFEESAND—Below MRL2024-04-10
NFDHAND—Below MRL2024-04-10
PFPeSND—Below MRL2024-04-10
PFHpSND—Below MRL2024-04-10
6:2 FTSND—Below MRL2024-04-10
PFHxSND10Below MRL2024-04-10
PFTAND—Below MRL2024-04-10
PFTrDAND—Below MRL2024-04-10
NEtFOSAAND—Below MRL2024-04-10
NMeFOSAAND—Below MRL2024-04-10
PFDAND—Below MRL2024-11-04
PFOAND4Below MRL2024-11-04
PFOSND4Below MRL2024-11-04
PFNAND10Below MRL2024-11-04
4:2 FTSND—Below MRL2024-11-04
PFHpAND—Below MRL2024-11-04
PFDoAND—Below MRL2024-11-04
NEtFOSAAND—Below MRL2024-11-04
PFHxSND10Below MRL2024-11-04
PFTrDAND—Below MRL2024-11-04
PFTAND—Below MRL2024-11-04
NMeFOSAAND—Below MRL2024-11-04
PFPeAND—Below MRL2024-11-04
PFBSND—Below MRL2024-11-04
PFMPAND—Below MRL2024-11-04
PFHxAND—Below MRL2024-11-04
PFMBAND—Below MRL2024-11-04
PFEESAND—Below MRL2024-11-04
NFDHAND—Below MRL2024-11-04
PFPeSND—Below MRL2024-11-04
PFHpSND—Below MRL2024-11-04
6:2 FTSND—Below MRL2024-11-04
PFBAND—Below MRL2024-11-04
HFPO-DAND10Below MRL2024-11-04
ADONAND—Below MRL2024-11-04
9Cl-PF3ONSND—Below MRL2024-11-04
11Cl-PF3OUdSND—Below MRL2024-11-04
PFUnAND—Below MRL2024-11-04
8:2 FTSND—Below MRL2024-11-04
PFHpSND—Below MRL2024-04-10
HFPO-DAND10Below MRL2024-04-10
PFBAND—Below MRL2024-04-10
6:2 FTSND—Below MRL2024-04-10
4:2 FTSND—Below MRL2024-04-10
8:2 FTSND—Below MRL2024-04-10
PFMPAND—Below MRL2024-04-10
PFPeAND—Below MRL2024-04-10
PFMBAND—Below MRL2024-04-10
PFEESAND—Below MRL2024-04-10
PFPeSND—Below MRL2024-04-10
PFBSND—Below MRL2024-04-10
ADONAND—Below MRL2024-04-10
NFDHAND—Below MRL2024-04-10
PFTAND—Below MRL2024-06-18
9Cl-PF3ONSND—Below MRL2024-04-10
PFHxSND10Below MRL2024-04-10
NEtFOSAAND—Below MRL2024-06-18
NMeFOSAAND—Below MRL2024-06-18
PFHpAND—Below MRL2024-04-10
PFTrDAND—Below MRL2024-06-18
PFNAND10Below MRL2024-04-10
PFOSND4Below MRL2024-04-10
PFOAND4Below MRL2024-04-10
PFDAND—Below MRL2024-04-10
PFDoAND—Below MRL2024-04-10
PFHxAND—Below MRL2024-04-10
PFUnAND—Below MRL2024-04-10
11Cl-PF3OUdSND—Below MRL2024-04-10
4:2 FTSND—Below MRL2024-11-04
ADONAND—Below MRL2024-11-04
HFPO-DAND10Below MRL2024-11-04
PFBAND—Below MRL2024-11-04
6:2 FTSND—Below MRL2024-11-04
11Cl-PF3OUdSND—Below MRL2024-11-04
8:2 FTSND—Below MRL2024-11-04
PFMPAND—Below MRL2024-11-04
PFPeAND—Below MRL2024-11-04
PFMBAND—Below MRL2024-11-04
PFEESAND—Below MRL2024-11-04
PFPeSND—Below MRL2024-11-04
PFUnAND—Below MRL2024-11-04
PFHpSND—Below MRL2024-11-04
NFDHAND—Below MRL2024-11-04
NEtFOSAAND—Below MRL2024-11-04
9Cl-PF3ONSND—Below MRL2024-11-04
PFHxAND—Below MRL2024-11-04
PFTrDAND—Below MRL2024-11-04
NMeFOSAAND—Below MRL2024-11-04
PFBSND—Below MRL2024-11-04
PFHpAND—Below MRL2024-11-04
PFHxSND10Below MRL2024-11-04
PFNAND10Below MRL2024-11-04
lithium18900—2024-04-10
lithium18600—2024-11-04
lithium17300—2024-11-04
lithium17000—2024-04-10
lithium14600—2025-08-06

Next steps