OPHEIM TOWN OF
PWS ID: MT0000301 · OPHEIM, Montana 59250
Population Served
111
Total Violations
254
Health-Based Violations
105
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 69
- County
- Valley
- School/Daycare
- No
- MCL Violations
- 105
- Monitoring Violations
- 143
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 96 | 2015 |
| Barium | MR | 16 | 2020 |
| Chromium | MR | 16 | 2020 |
| Fluoride | MR | 16 | 2020 |
| Selenium | MR | 16 | 2020 |
| Cadmium | MR | 16 | 2020 |
| Mercury | MR | 16 | 2020 |
| Coliform (TCR) | MR | 13 | 2014 |
| Revised Total Coliform Rule | MCL | 9 | 2021 |
| Nitrate-Nitrite | MR | 8 | 2010 |
| OXAMYL | MR | 6 | 1999 |
| Simazine | MR | 6 | 1999 |
| Consumer Confidence Rule | Other | 5 | 2013 |
| Lead and Copper Rule | MR | 5 | 2014 |
| E. COLI | MR | 5 | 2015 |
| Revised Total Coliform Rule | MON | 3 | 2020 |
| Nitrate | MR | 1 | 1997 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.