Oshkosh Waterworks
PWSID: WI4710457
System Details
| Population Served | 63,000 |
| Service Connections | 22,487 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Oshkosh |
| Zip Code | 54903 |
Areas Served
- Oshkosh, Winnebago County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0120 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0110 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0075 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0061 mg/L | 0.015 mg/L | Below Action Level |
2 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
| | 2024-10-17 | Yes | Open |
Violation History (9 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2024-10-17 | | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2018-07-01 | Major | Returned to Compliance |