💧 ZIP Water Report

Tap water in Oconomowoc, WI — ZIP 53066

1 public water system serving about 15,805 people.

A
Excellent

Water systems serving 53066

Oconomowoc Waterworks
PWSID WI2680227 · serves 15,805 · groundwater
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