SUPERIOR TOWN OF
PWS ID: MT0000339 · SUPERIOR, Montana 59872
Population Served
1,100
Total Violations
14
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 454
- County
- Mineral
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | MR | 4 | 2017 |
| Nitrate | MR | 2 | 1997 |
| Carbofuran | MR | 1 | 1996 |
| Aldicarb sulfone | MR | 1 | 1996 |
| Aldicarb sulfoxide | MR | 1 | 1996 |
| Aldicarb | MR | 1 | 1996 |
| OXAMYL | MR | 1 | 1996 |
| Coliform (TCR) | MR | 1 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.