💧 ZIP Water Report

Tap water in San Jose, CA — ZIP 90254

1 public water system serving about 100,072 people.

A
Excellent

Water systems serving 90254

California Water Service Co. - Herm/Redo
PWSID CA1910134 · serves 100,072 · surface water
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology