BASIN COUNTY WATER AND SEWER DIST
PWS ID: MT0000014 · BASIN, Montana 59631
Population Served
200
Total Violations
754
Health-Based Violations
34
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Public/Private
- Connections
- 105
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 24
- Monitoring Violations
- 703
- Treatment Tech Violations
- 10
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 131 | 2023 |
| Coliform (TCR) | MR | 69 | 2012 |
| Coliform (TCR) | MCL | 24 | 2009 |
| Nitrate-Nitrite | MR | 21 | 2021 |
| Cadmium | MR | 11 | 2002 |
| Chromium | MR | 11 | 2002 |
| Nickel | MR | 11 | 2002 |
| Antimony, Total | MR | 11 | 2002 |
| Thallium, Total | MR | 11 | 2002 |
| Selenium | MR | 11 | 2002 |
| Beryllium, Total | MR | 11 | 2002 |
| Consumer Confidence Rule | Other | 11 | 2023 |
| Mercury | MR | 11 | 2002 |
| Barium | MR | 11 | 2002 |
| Arsenic | MR | 11 | 2002 |
| Lead and Copper Rule | TT | 10 | 2021 |
| Xylenes, Total | MR | 7 | 2008 |
| DICHLOROMETHANE | MR | 7 | 2008 |
| p-Dichlorobenzene | MR | 7 | 2008 |
| trans-1,2-Dichloroethylene | MR | 7 | 2008 |
| 1,1,1-Trichloroethane | MR | 7 | 2008 |
| Carbon tetrachloride | MR | 7 | 2008 |
| 1,2-Dichloropropane | MR | 7 | 2008 |
| Trichloroethylene | MR | 7 | 2008 |
| 1,1,2-Trichloroethane | MR | 7 | 2008 |
| CHLOROBENZENE | MR | 7 | 2008 |
| Benzene | MR | 7 | 2008 |
| Toluene | MR | 7 | 2008 |
| Styrene | MR | 7 | 2008 |
| Endrin | MR | 7 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.