VALLEY GROVE WATER USERS ASSOCIATION
PWS ID: MT0000490 · LOLO, Montana 59847
Population Served
30
Total Violations
18
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 12
- County
- Missoula
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 14
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate-Nitrite | MR | 3 | 2006 |
| Lead and Copper Rule | MR | 3 | 2022 |
| Consumer Confidence Rule | Other | 2 | 2006 |
| Coliform (TCR) | MCL | 1 | 1994 |
| Nitrate | MR | 1 | 1981 |
| Barium | MR | 1 | 1981 |
| Arsenic | MR | 1 | 1981 |
| Fluoride | MR | 1 | 1981 |
| Cadmium | MR | 1 | 1981 |
| Selenium | MR | 1 | 1981 |
| Chromium | MR | 1 | 1981 |
| Mercury | MR | 1 | 1981 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.