COLLINS COLONY
PWS ID: SD4602358 · IROQUOIS, South Dakota 57353
Population Served
95
Total Violations
106
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 24
- County
- Clark
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 106
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| cis-1,2-Dichloroethylene | MR | 2 | 2019 |
| 1,1,1-Trichloroethane | MR | 2 | 2019 |
| Tetrachloroethylene | MR | 2 | 2019 |
| Ethylbenzene | MR | 2 | 2019 |
| DICHLOROMETHANE | MR | 2 | 2019 |
| Carbon tetrachloride | MR | 2 | 2019 |
| CHLOROBENZENE | MR | 2 | 2019 |
| trans-1,2-Dichloroethylene | MR | 2 | 2019 |
| 1,2-Dichloropropane | MR | 2 | 2019 |
| 1,2-Dichloroethane | MR | 2 | 2019 |
| Toluene | MR | 2 | 2019 |
| LASSO | MR | 2 | 2019 |
| Atrazine | MR | 2 | 2019 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2019 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2019 |
| Hexachlorocyclopentadiene | MR | 2 | 2019 |
| Chlordane | MR | 2 | 2019 |
| Toxaphene | MR | 2 | 2019 |
| Simazine | MR | 2 | 2019 |
| Carbofuran | MR | 2 | 2019 |
| Dalapon | MR | 2 | 2019 |
| 2,4,5-TP | MR | 2 | 2019 |
| Pentachlorophenol | MR | 2 | 2019 |
| 2,4-D | MR | 2 | 2019 |
| Endothall | MR | 2 | 2019 |
| Glyphosate | MR | 2 | 2019 |
| Diquat | MR | 2 | 2019 |
| Combined Radium (-226 and -228) | MR | 2 | 2022 |
| Combined Uranium | MR | 2 | 2022 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.