CUSTER-MOUNT RUSHMORE KOA-REAR/CG
PWS ID: SD4600650 · BLACK HAWK, South Dakota 57718
Population Served
146
Total Violations
108
Health-Based Violations
27
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 67
- County
- Custer
- School/Daycare
- No
- MCL Violations
- 27
- Monitoring Violations
- 54
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 43 | 2013 |
| Coliform (TCR) | MCL | 27 | 2011 |
| E. COLI | MR | 7 | 2011 |
| Public Notice | Other | 6 | 2010 |
| Coliform (TCR) | Other | 5 | 2000 |
| Nitrate | MR | 4 | 2000 |
| Revised Total Coliform Rule | Other | 2 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.