LYON-SIOUX RWS-ROCK RAPIDS
PWS ID: IA6000800 · ROCK RAPIDS, Iowa 51246
Population Served
1,187
Total Violations
17
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 475
- County
- Lyon
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 5 | 2007 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.