Tap water in San Jose, CA — ZIP 94024
2 public water systems serving about 79,895 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 94024
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
City Of Cupertino
PWSID CA4310018 · serves 16,336 ·
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