LOLO WATER AND SEWER DIST
PWS ID: MT0000278 · LOLO, Montana 59847
Population Served
3,315
Total Violations
92
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,243
- County
- Missoula
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 76
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 37 | 2013 |
| Consumer Confidence Rule | Other | 9 | 2022 |
| Nitrate-Nitrite | MR | 7 | 2024 |
| Nitrate | MR | 6 | 1999 |
| Lead and Copper Rule | MR | 5 | 2014 |
| Coliform (TCR) | MCL | 5 | 2008 |
| Asbestos | MR | 4 | 2011 |
| Arsenic | MR | 4 | 2008 |
| Fluoride | MR | 3 | 2008 |
| Chromium | MR | 2 | 1982 |
| Cadmium | MR | 2 | 1982 |
| Selenium | MR | 2 | 1982 |
| Mercury | MR | 2 | 1982 |
| Barium | MR | 2 | 1982 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.