Tap water in San Jose, CA — ZIP 90277
3 public water systems serving about 320,392 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 90277
California Water Service Co. - Dominguez
PWSID CA1910033 · serves 149,490 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 3.5 ppt
California Water Service Co. - Herm/Redo
PWSID CA1910134 · serves 100,072 ·
surface water
0 health-based / 0 total violations (5 yrs)
California Water Service Co. - Palos Ver
PWSID CA1910104 · serves 70,830 ·
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