PFAS Comply

WESTBOROUGH WATER DISTRICT

PWSID: CA4110027 · SOUTH SAN FRANCISCO, CA · Serving 13,486 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
2024-09-11
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFHpSND—Below MRL2024-03-11
PFMPAND—Below MRL2024-03-11
PFHpAND—Below MRL2024-03-11
PFPeAND—Below MRL2024-03-11
PFMBAND—Below MRL2024-03-11
PFEESAND—Below MRL2024-03-11
NFDHAND—Below MRL2024-03-11
4:2 FTSND—Below MRL2024-03-11
PFBSND—Below MRL2024-03-11
6:2 FTSND—Below MRL2024-03-11
NMeFOSAAND—Below MRL2024-03-11
NEtFOSAAND—Below MRL2024-03-11
PFTrDAND—Below MRL2024-03-11
PFTAND—Below MRL2024-03-11
PFPeSND—Below MRL2024-03-11
PFUnAND—Below MRL2024-03-11
PFOAND4Below MRL2024-03-11
8:2 FTSND—Below MRL2024-03-11
PFOSND4Below MRL2024-03-11
PFNAND10Below MRL2024-03-11
PFDAND—Below MRL2024-03-11
PFHxSND10Below MRL2024-03-11
PFDoAND—Below MRL2024-03-11
11Cl-PF3OUdSND—Below MRL2024-03-11
9Cl-PF3ONSND—Below MRL2024-03-11
lithiumND—Below MRL2024-03-11
ADONAND—Below MRL2024-03-11
HFPO-DAND10Below MRL2024-03-11
PFBAND—Below MRL2024-03-11
PFHxAND—Below MRL2024-03-11
PFPeSND—Below MRL2024-06-18
PFHpSND—Below MRL2024-06-18
NMeFOSAAND—Below MRL2024-06-18
PFTrDAND—Below MRL2024-06-18
PFPeAND—Below MRL2024-06-18
NEtFOSAAND—Below MRL2024-06-18
NFDHAND—Below MRL2024-06-18
PFTAND—Below MRL2024-06-18
PFOAND4Below MRL2024-06-18
lithiumND—Below MRL2024-06-18
PFBSND—Below MRL2024-06-18
PFHpAND—Below MRL2024-06-18
PFHxSND10Below MRL2024-06-18
PFEESAND—Below MRL2024-06-18
PFOSND4Below MRL2024-06-18
PFMBAND—Below MRL2024-06-18
PFDAND—Below MRL2024-06-18
PFDoAND—Below MRL2024-06-18
PFHxAND—Below MRL2024-06-18
11Cl-PF3OUdSND—Below MRL2024-06-18
9Cl-PF3ONSND—Below MRL2024-06-18
ADONAND—Below MRL2024-06-18
HFPO-DAND10Below MRL2024-06-18
PFBAND—Below MRL2024-06-18
6:2 FTSND—Below MRL2024-06-18
4:2 FTSND—Below MRL2024-06-18
PFUnAND—Below MRL2024-06-18
PFNAND10Below MRL2024-06-18
PFMPAND—Below MRL2024-06-18
8:2 FTSND—Below MRL2024-06-18
PFDAND—Below MRL2024-09-11
4:2 FTSND—Below MRL2024-09-11
PFBSND—Below MRL2024-09-11
PFHpAND—Below MRL2024-09-11
PFHxSND10Below MRL2024-09-11
PFNAND10Below MRL2024-09-11
PFOAND4Below MRL2024-09-11
PFOSND4Below MRL2024-09-11
8:2 FTSND—Below MRL2024-09-11
NMeFOSAAND—Below MRL2024-09-11
NEtFOSAAND—Below MRL2024-09-11
PFTrDAND—Below MRL2024-09-11
PFTAND—Below MRL2024-09-11
PFHpSND—Below MRL2024-09-11
PFPeSND—Below MRL2024-09-11
NFDHAND—Below MRL2024-09-11
PFEESAND—Below MRL2024-09-11
PFMBAND—Below MRL2024-09-11
PFBAND—Below MRL2024-09-11
PFMPAND—Below MRL2024-09-11
lithiumND—Below MRL2024-09-11
6:2 FTSND—Below MRL2024-09-11
HFPO-DAND10Below MRL2024-09-11
ADONAND—Below MRL2024-09-11
9Cl-PF3ONSND—Below MRL2024-09-11
11Cl-PF3OUdSND—Below MRL2024-09-11
PFUnAND—Below MRL2024-09-11
PFHxAND—Below MRL2024-09-11
PFDoAND—Below MRL2024-09-11
PFPeAND—Below MRL2024-09-11
PFUnAND—Below MRL2024-12-11
PFPeAND—Below MRL2024-12-11
PFBSND—Below MRL2024-12-11
8:2 FTSND—Below MRL2024-12-11
4:2 FTSND—Below MRL2024-12-11
6:2 FTSND—Below MRL2024-12-11
PFBAND—Below MRL2024-12-11
HFPO-DAND10Below MRL2024-12-11
ADONAND—Below MRL2024-12-11
11Cl-PF3OUdSND—Below MRL2024-12-11
PFDoAND—Below MRL2024-12-11
PFOAND4Below MRL2024-12-11
PFOSND4Below MRL2024-12-11
PFNAND10Below MRL2024-12-11
PFMPAND—Below MRL2024-12-11
PFHpAND—Below MRL2024-12-11
PFHxAND—Below MRL2024-12-11
lithiumND—Below MRL2024-12-11
PFMBAND—Below MRL2024-12-11
PFEESAND—Below MRL2024-12-11
NFDHAND—Below MRL2024-12-11
PFPeSND—Below MRL2024-12-11
PFHpSND—Below MRL2024-12-11
PFTAND—Below MRL2024-12-11
PFTrDAND—Below MRL2024-12-11
NEtFOSAAND—Below MRL2024-12-11
NMeFOSAAND—Below MRL2024-12-11
9Cl-PF3ONSND—Below MRL2024-12-11
PFHxSND10Below MRL2024-12-11
PFDAND—Below MRL2024-12-11

Next steps