MONTELLO WATERWORKS
PWS ID: WI4390281 · MONTELLO, Wisconsin 53949
Population Served
1,329
Total Violations
35
Health-Based Violations
18
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 492
- County
- Marquette
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 9
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 13 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2014 |
| TTHM | MR | 4 | 2014 |
| Groundwater Rule | TT | 3 | 2025 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2025 |
| Public Notice | Other | 2 | 2024 |
| Lead and Copper Rule | TT | 1 | 1994 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| Lead and Copper Rule | MR | 1 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.