Williams Bay Waterworks
PWSID: WI2650060
System Details
| Population Served | 2,601 |
| Service Connections | 963 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Williams Bay |
| Zip Code | 53191 |
Areas Served
- Williams Bay, Walworth County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0074 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0072 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0065 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0060 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0023 mg/L | 0.015 mg/L | Below Action Level |
3 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-09-11 | | Open |
| | 2025-07-01 | Yes | Open |
| | 2025-01-01 | | Open |
Violation History (13 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-01-01 | | Acknowledged |
| | 2025-01-01 | | Acknowledged |
| | 2023-07-01 | Major | Acknowledged |
| | 2021-07-01 | | Returned to Compliance |
| | 2021-07-01 | | Returned to Compliance |
| | 2020-07-01 | | Returned to Compliance |
| | 2012-01-01 | | Returned to Compliance |
| | 2006-04-01 | | Returned to Compliance |
| | 2000-10-01 | | Returned to Compliance |
| | 2000-07-01 | | Returned to Compliance |