Tomah Waterworks
PWSID: WI6420254
System Details
| Population Served | 9,192 |
| Service Connections | 3,139 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Tomah |
| Zip Code | 54660-0151 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0016 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (23 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-04-01 | Yes | Acknowledged |
| | 2025-04-01 | Yes | Acknowledged |
| | 2018-04-01 | Yes | Returned to Compliance |
| | 2018-01-01 | Yes | Returned to Compliance |
| | 2017-10-01 | Yes | Returned to Compliance |
| | 2017-07-01 | Yes | Returned to Compliance |
| | 2017-04-01 | Yes | Returned to Compliance |
| | 2017-02-15 | | Returned to Compliance |
| | 2017-01-01 | Yes | Returned to Compliance |
| | 2016-10-01 | Yes | Returned to Compliance |
| | 2016-07-26 | | Returned to Compliance |
| | 2016-07-26 | | Returned to Compliance |
| | 2016-07-01 | Yes | Returned to Compliance |
| | 2016-04-01 | Yes | Returned to Compliance |
| | 2016-01-01 | Yes | Returned to Compliance |
| | 2015-12-18 | | Returned to Compliance |
| | 2015-10-06 | | Returned to Compliance |
| | 2015-10-01 | Yes | Returned to Compliance |
| | 2015-07-01 | | Returned to Compliance |
| | 2015-07-01 | Yes | Returned to Compliance |
| | 2015-04-01 | Yes | Returned to Compliance |
| | 2015-01-01 | Yes | Returned to Compliance |
| | 2014-10-01 | Yes | Returned to Compliance |