ELKTON
PWS ID: SD4600117 · ELKTON, South Dakota 57026
Population Served
755
Total Violations
53
Health-Based Violations
17
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 320
- County
- Brookings
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 20
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 15 | 2004 |
| Nitrate | MCL | 12 | 1989 |
| Coliform (TCR) | MCL | 3 | 2013 |
| Revised Total Coliform Rule | MON | 3 | 2022 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 2 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.