WILSALL WATER DISTRICT
PWS ID: MT0000362 · WILSALL, Montana 59086
Population Served
250
Total Violations
157
Health-Based Violations
11
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 130
- County
- Park
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 133
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 73 | 2011 |
| Coliform (TCR) | MR | 21 | 1995 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2013 |
| TTHM | MR | 12 | 2013 |
| Consumer Confidence Rule | Other | 9 | 2010 |
| Surface Water Treatment Rule | TT | 8 | 2025 |
| Nitrate-Nitrite | MR | 6 | 2003 |
| Surface Water Treatment Rule | MR | 4 | 2025 |
| Nitrate-Nitrite | MCL | 3 | 2018 |
| Asbestos | MR | 3 | 2011 |
| Nitrate | MR | 2 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.