💧 ZIP Water Report

Tap water in Hayward, CA — ZIP 94543

1 public water system serving about 162,954 people.

A
Excellent

Water systems serving 94543

City Of Hayward
PWSID CA0110006 · serves 162,954 · 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