SHIRT TAIL GULCH DEVELOPMENT
PWS ID: SD4602232 · BLACK HAWK, South Dakota 57718
Population Served
65
Total Violations
622
Health-Based Violations
454
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 26
- County
- Lawrence
- School/Daycare
- No
- MCL Violations
- 452
- Monitoring Violations
- 162
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 211 | 2018 |
| Gross Alpha, Excl. Radon and U | MCL | 155 | 2018 |
| Arsenic | MCL | 86 | 2014 |
| Combined Uranium | MR | 6 | 2017 |
| Dalapon | MR | 6 | 2004 |
| Dinoseb | MR | 6 | 2004 |
| Pentachlorophenol | MR | 6 | 2004 |
| Picloram | MR | 6 | 2004 |
| 2,4-D | MR | 6 | 2004 |
| Public Notice | Other | 6 | 2018 |
| Combined Radium (-226 and -228) | MR | 6 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2017 |
| 2,4,5-TP | MR | 6 | 2004 |
| cis-1,2-Dichloroethylene | MR | 5 | 2005 |
| 1,1,1-Trichloroethane | MR | 5 | 2005 |
| Tetrachloroethylene | MR | 5 | 2005 |
| DICHLOROMETHANE | MR | 5 | 2005 |
| Xylenes, Total | MR | 5 | 2005 |
| Carbon tetrachloride | MR | 5 | 2005 |
| CHLOROBENZENE | MR | 5 | 2005 |
| o-Dichlorobenzene | MR | 5 | 2005 |
| Benzene | MR | 5 | 2005 |
| 1,2-Dichloroethane | MR | 5 | 2005 |
| Trichloroethylene | MR | 5 | 2005 |
| Toluene | MR | 5 | 2005 |
| Vinyl chloride | MR | 5 | 2005 |
| trans-1,2-Dichloroethylene | MR | 5 | 2005 |
| Ethylbenzene | MR | 5 | 2005 |
| p-Dichlorobenzene | MR | 5 | 2005 |
| 1,2,4-Trichlorobenzene | MR | 5 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.