COLONIAL PINE HILLS SANITARY DISTRIC
PWS ID: SD4600263 · RAPID CITY, South Dakota 57702
Population Served
1,200
Total Violations
80
Health-Based Violations
69
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 431
- County
- Pennington
- School/Daycare
- No
- MCL Violations
- 69
- Monitoring Violations
- 6
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 50 | 2010 |
| Coliform (TCR) | MCL | 12 | 1991 |
| Gross Alpha, Excl. Radon and U | MCL | 7 | 2009 |
| Coliform (TCR) | MR | 4 | 1992 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.