OILMONT COUNTY WATER DISTRICT
PWS ID: MT0000587 · SUNBURST, Montana 59482
Population Served
300
Total Violations
1,107
Health-Based Violations
174
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 76
- County
- Toole
- School/Daycare
- No
- MCL Violations
- 135
- Monitoring Violations
- 923
- Treatment Tech Violations
- 39
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 135 | 2015 |
| Groundwater Rule | TT | 39 | 2021 |
| 1,2,4-Trichlorobenzene | MR | 39 | 2020 |
| cis-1,2-Dichloroethylene | MR | 39 | 2020 |
| Xylenes, Total | MR | 39 | 2020 |
| DICHLOROMETHANE | MR | 39 | 2020 |
| Vinyl chloride | MR | 39 | 2020 |
| trans-1,2-Dichloroethylene | MR | 39 | 2020 |
| 1,2-Dichloroethane | MR | 39 | 2020 |
| 1,1,1-Trichloroethane | MR | 39 | 2020 |
| Carbon tetrachloride | MR | 39 | 2020 |
| 1,2-Dichloropropane | MR | 39 | 2020 |
| Trichloroethylene | MR | 39 | 2020 |
| 1,1,2-Trichloroethane | MR | 39 | 2020 |
| Toluene | MR | 39 | 2020 |
| Styrene | MR | 39 | 2020 |
| p-Dichlorobenzene | MR | 39 | 2020 |
| 1,1-Dichloroethylene | MR | 39 | 2020 |
| Tetrachloroethylene | MR | 39 | 2020 |
| CHLOROBENZENE | MR | 39 | 2020 |
| Ethylbenzene | MR | 39 | 2020 |
| o-Dichlorobenzene | MR | 39 | 2020 |
| Benzene | MR | 39 | 2020 |
| Coliform (TCR) | MR | 31 | 2015 |
| 2,4,5-TP | MR | 18 | 2020 |
| Lead and Copper Rule | MR | 16 | 2020 |
| Groundwater Rule | MR | 16 | 2022 |
| Consumer Confidence Rule | Other | 8 | 2024 |
| E. COLI | MR | 7 | 2012 |
| TTHM | MR | 6 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.