BIG HORN CO HISTORICAL MUSEUM
PWS ID: MT0003604 · HARDIN, Montana 59034
Population Served
206
Total Violations
34
Health-Based Violations
8
Water Source
Surface Water
System Details
- System Type
- Transient Non-Community
- Owner Type
- Local
- Connections
- 2
- County
- Big Horn
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 26
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 22 | 2014 |
| Coliform (TCR) | MCL | 8 | 2002 |
| Revised Total Coliform Rule | MON | 4 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.