Tap water in San Jose, CA — ZIP 94022
4 public water systems serving about 197,851 people. PFAS "forever chemicals" have been detected here.
A
Excellent
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 94022
City Of Palo Alto
PWSID CA4310009 · serves 67,658 ·
surface water
0 health-based / 0 total violations (5 yrs)
Cwsc Los Altos Suburban
PWSID CA4310001 · serves 63,559 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.5 ppt
California Water Service - Bear Gulch
PWSID CA4110006 · serves 60,382 ·
surface water
0 health-based / 0 total violations (5 yrs)
Purissima Hills Water District
PWSID CA4310021 · serves 6,252 ·
surface water
0 health-based / 0 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology