MOUNT STERLING WATERWORKS
PWS ID: WI6120246 · MT STERLING, Wisconsin 54645-0067
Population Served
206
Total Violations
100
Health-Based Violations
44
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 76
- County
- Crawford
- School/Daycare
- No
- MCL Violations
- 33
- Monitoring Violations
- 47
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 33 | 2015 |
| Lead and Copper Rule | MR | 15 | 2024 |
| Coliform (TCR) | MR | 8 | 2009 |
| TTHM | MR | 8 | 2017 |
| Lead and Copper Rule | TT | 8 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2017 |
| Public Notice | Other | 6 | 2024 |
| Revised Total Coliform Rule | MON | 5 | 2025 |
| Chlorine | MR | 3 | 2009 |
| Consumer Confidence Rule | Other | 2 | 2014 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.