GRANT CREEK WATER USERS ASSOCIATION INC
PWS ID: MT0003305 · MISSOULA, Montana 59808
Population Served
380
Total Violations
87
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 154
- County
- Missoula
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 81
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 62 | 2006 |
| Coliform (TCR) | MR | 14 | 2008 |
| Chlorine | MR | 4 | 2012 |
| Coliform (TCR) | MCL | 4 | 1995 |
| Consumer Confidence Rule | Other | 2 | 2018 |
| Nitrate | MR | 1 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.