CITY OF GILROY

PWSID: CA4310004 · GILROY, CA · Serving 59,203 people

Type: CWSOwner: LSource: GW

Settlement eligible

May qualify for 3M/DuPont settlement funds

Exceeds MCL

One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.

PFOA8 ppt(MCL: 4 ppt)

PFOS5.8 ppt(MCL: 4 ppt)

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

Exact contamination levels

Upgrade to Pro to see PFOA/PFOS ppt values and MCL comparison charts.

PFAS compounds detected

11 ppt

Highest single detection

Highest detection

Pro feature

2025-07-23

Latest sample date

complete

Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5) · 578 compounds tested

Contaminant	Result (ppt)	MCL (ppt)	Status	Sample date
PFNA	ND	10	Below MRL	2024-12-17
PFUnA	ND	—	Below MRL	2024-12-17

576 more results hidden