OWANKA RURAL WATER SYSTEM
PWS ID: SD4602310 · BLACK HAWK, South Dakota 57718
Population Served
52
Total Violations
78
Health-Based Violations
78
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 23
- County
- Pennington
- School/Daycare
- No
- MCL Violations
- 78
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 78 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.