HARDIN KOA CISTERN
PWS ID: MT0002008 · HARDIN, Montana 59034
Population Served
100
Total Violations
41
Health-Based Violations
5
Water Source
Surface Water
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 49
- County
- Big Horn
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 34
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 20 | 2025 |
| Coliform (TCR) | MR | 10 | 2006 |
| Coliform (TCR) | MCL | 5 | 2006 |
| Nitrate | MR | 4 | 1983 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.