OTTOSEN WATER SUPPLY
PWS ID: IA4652011 · WHITTEMORE, Iowa 50598
Population Served
41
Total Violations
43
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 31
- County
- Humboldt
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 29
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Gross Alpha, Excl. Radon and U | MR | 11 | 1989 |
| Coliform (TCR) | MR | 5 | 1992 |
| Revised Total Coliform Rule | MON | 5 | 2020 |
| Diquat | MR | 4 | 2014 |
| Nitrate | MR | 4 | 2020 |
| Coliform (TCR) | MCL | 4 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.