DEERFIELD HEIGHTS ASSOCIATION
PWS ID: IA9630316 · OSSIAN, Iowa 52161
Population Served
28
Total Violations
87
Health-Based Violations
23
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 10
- County
- Winneshiek
- School/Daycare
- No
- MCL Violations
- 23
- Monitoring Violations
- 46
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 38 | 2014 |
| Coliform (TCR) | MCL | 23 | 2006 |
| Consumer Confidence Rule | Other | 4 | 2006 |
| Nitrate | MR | 4 | 2014 |
| Chlorine | MR | 4 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.