💧 ZIP Water Report

Tap water in Thousand Oaks, CA — ZIP 91320

1 public water system serving about 54,770 people.

A
Excellent

Water systems serving 91320

City Of Thousand Oaks Water Department
PWSID CA5610020 · serves 54,770 · surface water
0 health-based / 0 total violations (5 yrs)
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Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology