POTOMAC BAR
PWS ID: MT0000849 · BONNER, Montana 59823
Population Served
93
Total Violations
393
Health-Based Violations
42
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Missoula
- School/Daycare
- No
- MCL Violations
- 39
- Monitoring Violations
- 346
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 261 | 2013 |
| Nitrate-Nitrite | MR | 52 | 2024 |
| Coliform (TCR) | MCL | 39 | 2014 |
| Revised Total Coliform Rule | MON | 27 | 2025 |
| E. COLI | MR | 3 | 2025 |
| Revised Total Coliform Rule | TT | 3 | 2025 |
| Nitrate | MR | 3 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.