MACS MARKET
PWS ID: MT0003307 · LIBBY, Montana 59923
Population Served
154
Total Violations
38
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Lincoln
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 38
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 30 | 2010 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| Nitrate-Nitrite | MR | 3 | 2020 |
| Nitrate | MR | 2 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.