THREE LAKES SANITARY DISTRICT
PWS ID: WI7440129 · THREE LAKES, Wisconsin 54562-0325
Population Served
500
Total Violations
33
Health-Based Violations
11
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 283
- County
- Oneida
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 15
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 11 | 2025 |
| Coliform (TCR) | MCL | 7 | 2008 |
| Lead and Copper Rule | MR | 4 | 2024 |
| Groundwater Rule | TT | 3 | 2025 |
| Consumer Confidence Rule | Other | 2 | 2025 |
| Public Notice | Other | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.