THE ZIPPER
PWS ID: IA9637201 · OSSIAN, Iowa 52161
Population Served
35
Total Violations
436
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Winneshiek
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 261
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 127 | 2016 |
| Public Notice | Other | 110 | 2019 |
| Revised Total Coliform Rule | MON | 87 | 2019 |
| Nitrate | MR | 47 | 2016 |
| Coliform (TCR) | MCL | 5 | 1990 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.