OLIN-SANG-RUBY UNION INSTITUTE - DINING HALL
PWS ID: WI3280009 · OCONOMOWOC, Wisconsin 53066
Population Served
700
Total Violations
29
Health-Based Violations
25
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 25
- Monitoring Violations
- 3
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 25 | 2007 |
| Coliform (TCR) | MR | 3 | 2003 |
| Public Notice | Other | 1 | 2003 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.