ROUND BUTTE WATER COMPANY
PWS ID: MT0000320 · RONAN, Montana 59864
Population Served
400
Total Violations
38
Health-Based Violations
17
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 160
- County
- Lake
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 17
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 17 | 2015 |
| E. COLI | MR | 8 | 2021 |
| Consumer Confidence Rule | Other | 4 | 2013 |
| Coliform (TCR) | MR | 4 | 1997 |
| Revised Total Coliform Rule | MON | 3 | 2021 |
| Lead and Copper Rule | MR | 2 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.