MAPLETON MUNICIPAL WATER PLANT
PWS ID: IA6727028 · MAPLETON, Iowa 51034
Population Served
1,124
Total Violations
129
Health-Based Violations
68
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 629
- County
- Monona
- School/Daycare
- No
- MCL Violations
- 68
- Monitoring Violations
- 41
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 45 | 2000 |
| Nitrate | MR | 23 | 2016 |
| Coliform (TCR) | MCL | 23 | 1998 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 1990 |
| Nitrate | Other | 4 | 1994 |
| Antimony, Total | MR | 4 | 1992 |
| Coliform (TCR) | MR | 4 | 2015 |
| Lead and Copper Rule | MR | 2 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.