WALL LAKE WATER SUPPLY
PWS ID: IA8166061 · WALL LAKE, Iowa 51466
Population Served
780
Total Violations
40
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 465
- County
- Sac
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 14
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 8 | 1996 |
| Nitrate | MCL | 6 | 2015 |
| 1,2,4-Trichlorobenzene | MR | 3 | 1995 |
| BHC-GAMMA | MR | 3 | 1995 |
| Selenium | MCL | 2 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.