BIG SANDY TOWN OF
PWS ID: MT0000150 · BIG SANDY, Montana 59520
Population Served
608
Total Violations
58
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 372
- County
- Chouteau
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 50
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2011 |
| Nitrate-Nitrite | MR | 9 | 2024 |
| TTHM | MR | 5 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2017 |
| Consumer Confidence Rule | Other | 4 | 2024 |
| Chlorine | MR | 3 | 2014 |
| Coliform (TCR) | MCL | 2 | 1997 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.