💧 ZIP Water Report

Tap water in Sonora, CA — ZIP 95379

1 public water system serving about 13,331 people.

A
Excellent

Water systems serving 95379

Tud - Upper Basin Water System
PWSID CA5510012 · serves 13,331 · surface water
0 health-based / 1 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