NORWALK WATERWORKS
PWS ID: WI6420296 · Norwalk, Wisconsin 54648-0230
Population Served
653
Total Violations
32
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 230
- County
- Monroe
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 26
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2010 |
| Chlorine | MR | 9 | 2010 |
| Coliform (TCR) | MCL | 5 | 1995 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.