Oconomowoc Waterworks
PWSID: WI2680227
System Details
| Population Served | 15,805 |
| Service Connections | 1 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Oconomowoc |
| Zip Code | 53066 |
Areas Served
- Oconomowoc, Waukesha County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0083 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0071 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0068 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2006-04-01 | | Open |
Violation History (6 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-04-01 | Major | Acknowledged |
| | 2023-10-01 | | Acknowledged |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Acknowledged |
| | 2007-07-01 | | Returned to Compliance |