MONTROSE
PWS ID: SD4600217 · MONTROSE, South Dakota 57048
Population Served
468
Total Violations
327
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 170
- County
- McCook
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 287
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 30 | 2014 |
| Chlorine | MR | 14 | 2022 |
| Nitrate | MR | 12 | 2004 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 11 | 2018 |
| 1,1,2-Trichloroethane | MR | 7 | 1994 |
| cis-1,2-Dichloroethylene | MR | 6 | 1994 |
| Vinyl chloride | MR | 6 | 1994 |
| 1,2,4-Trichlorobenzene | MR | 6 | 1994 |
| o-Dichlorobenzene | MR | 6 | 1994 |
| trans-1,2-Dichloroethylene | MR | 6 | 1994 |
| 1,2-Dichloropropane | MR | 6 | 1994 |
| Trichloroethylene | MR | 6 | 1994 |
| Endothall | MR | 6 | 1996 |
| 1,1,1-Trichloroethane | MR | 6 | 1994 |
| Tetrachloroethylene | MR | 6 | 1994 |
| Ethylbenzene | MR | 6 | 1994 |
| Xylenes, Total | MR | 6 | 1994 |
| Benzene | MR | 6 | 1994 |
| p-Dichlorobenzene | MR | 6 | 1994 |
| DICHLOROMETHANE | MR | 6 | 1994 |
| 1,1-Dichloroethylene | MR | 6 | 1994 |
| Carbon tetrachloride | MR | 6 | 1994 |
| CHLOROBENZENE | MR | 6 | 1994 |
| Styrene | MR | 6 | 1994 |
| 1,2-Dichloroethane | MR | 6 | 1994 |
| Toluene | MR | 6 | 1994 |
| Public Notice | Other | 5 | 2005 |
| Coliform (TCR) | MCL | 4 | 1991 |
| Asbestos | MR | 3 | 1993 |
| Heptachlor | MR | 3 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.