COSMOS MYSTERY AREA
PWS ID: SD4602305 · RAPID CITY, South Dakota 57702
Population Served
600
Total Violations
55
Health-Based Violations
14
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Pennington
- School/Daycare
- No
- MCL Violations
- 14
- Monitoring Violations
- 39
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| E. COLI | MR | 23 | 2017 |
| Coliform (TCR) | MCL | 11 | 2013 |
| Coliform (TCR) | MR | 9 | 2011 |
| Revised Total Coliform Rule | MON | 7 | 2021 |
| Revised Total Coliform Rule | MCL | 3 | 2018 |
| Public Notice | Other | 2 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.