LANTERN ESTATES
PWS ID: SD4600315 · SPEARFISH, South Dakota 57783
Population Served
192
Total Violations
248
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 78
- County
- Lawrence
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 223
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 56 | 2008 |
| Lead and Copper Rule | MR | 16 | 2000 |
| Consumer Confidence Rule | Other | 14 | 2007 |
| Nitrate | MR | 11 | 2008 |
| Coliform (TCR) | Other | 4 | 2001 |
| Cadmium | MR | 3 | 2006 |
| Chromium | MR | 3 | 2006 |
| Fluoride | MR | 3 | 2006 |
| Selenium | MR | 3 | 2006 |
| Public Notice | Other | 3 | 2009 |
| Barium | MR | 3 | 2006 |
| Mercury | MR | 3 | 2006 |
| Heptachlor | MR | 2 | 1993 |
| Benzo(a)pyrene | MR | 2 | 1993 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 1993 |
| Di(2-ethylhexyl) adipate | MR | 2 | 1993 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 1993 |
| Endrin | MR | 2 | 1993 |
| HEXACHLOROBENZENE | MR | 2 | 1993 |
| BHC-GAMMA | MR | 2 | 1993 |
| Chlordane | MR | 2 | 1993 |
| Toxaphene | MR | 2 | 1993 |
| Simazine | MR | 2 | 1993 |
| Aldicarb | MR | 2 | 1993 |
| Aldicarb sulfone | MR | 2 | 1993 |
| Aldicarb sulfoxide | MR | 2 | 1993 |
| Carbofuran | MR | 2 | 1993 |
| 2,4,5-TP | MR | 2 | 1993 |
| Picloram | MR | 2 | 1993 |
| 2,4-D | MR | 2 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.