POSTVILLE WATER DEPARTMENT
PWS ID: IA0375053 · POSTVILLE, Iowa 52162
Population Served
2,513
Total Violations
34
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 862
- County
- Allamakee
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 31
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 8 | 1991 |
| Gross Alpha, Excl. Radon and U | MR | 7 | 2018 |
| Nitrate | MR | 4 | 1993 |
| Combined Radium (-226 and -228) | MR | 4 | 1988 |
| Antimony, Total | MR | 4 | 1989 |
| Revised Total Coliform Rule | MON | 4 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.