OLIN-SANG-RUBY UNION INSTITUTE - MAIN SYSTEM
PWS ID: WI1280830 · OCONOMOWOC, Wisconsin 53066
Population Served
704
Total Violations
47
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 32
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 25 | 1999 |
| Coliform (TCR) | MCL | 15 | 2002 |
| Coliform (TCR) | MR | 7 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.