DARBY TOWN OF
PWS ID: MT0000195 · DARBY, Montana 59829
Population Served
850
Total Violations
639
Health-Based Violations
58
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 494
- County
- Ravalli
- School/Daycare
- No
- MCL Violations
- 54
- Monitoring Violations
- 576
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 201 | 2006 |
| Coliform (TCR) | MCL | 54 | 2005 |
| Coliform (TCR) | MR | 8 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 6 | 1999 |
| Xylenes, Total | MR | 6 | 1999 |
| Vinyl chloride | MR | 6 | 1999 |
| 1,1-Dichloroethylene | MR | 6 | 1999 |
| trans-1,2-Dichloroethylene | MR | 6 | 1999 |
| 1,1,1-Trichloroethane | MR | 6 | 1999 |
| 1,2-Dichloropropane | MR | 6 | 1999 |
| 1,1,2-Trichloroethane | MR | 6 | 1999 |
| Tetrachloroethylene | MR | 6 | 1999 |
| CHLOROBENZENE | MR | 6 | 1999 |
| Toluene | MR | 6 | 1999 |
| Styrene | MR | 6 | 1999 |
| DICHLOROMETHANE | MR | 6 | 1999 |
| o-Dichlorobenzene | MR | 6 | 1999 |
| 1,2-Dichloroethane | MR | 6 | 1999 |
| Carbon tetrachloride | MR | 6 | 1999 |
| Trichloroethylene | MR | 6 | 1999 |
| Endrin | MR | 6 | 1999 |
| Methoxychlor | MR | 6 | 1999 |
| Toxaphene | MR | 6 | 1999 |
| Diquat | MR | 6 | 1999 |
| Endothall | MR | 6 | 1999 |
| Glyphosate | MR | 6 | 1999 |
| Di(2-ethylhexyl) adipate | MR | 6 | 1999 |
| OXAMYL | MR | 6 | 1999 |
| Di(2-ethylhexyl) phthalate | MR | 6 | 1999 |
| Picloram | MR | 6 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.