Tap water in San Jose, CA — ZIP 94005
2 public water systems serving about 64,064 people. PFAS "forever chemicals" have been detected here.
C
Fair
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 94005
California Water Service-S San Francisco
PWSID CA4110009 · serves 62,609 ·
surface water
0 health-based / 0 total violations (5 yrs)
Guadalupe Valley Mid
PWSID CA4110005 · serves 1,455 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 9.6 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology