OTO WATER SUPPLY
PWS ID: IA9758023 · OTO, Iowa 51044
Population Served
72
Total Violations
82
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 54
- County
- Woodbury
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 45
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2008 |
| Nitrate | MR | 8 | 2002 |
| Coliform (TCR) | MCL | 5 | 1999 |
| Fluoride | MR | 5 | 1986 |
| Consumer Confidence Rule | Other | 4 | 2024 |
| Lead and Copper Rule | MR | 2 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1984 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.