SELBY
PWS ID: SD4600291 · SELBY, South Dakota 57472
Population Served
645
Total Violations
68
Health-Based Violations
11
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 367
- County
- Walworth
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 44
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 12 | 2023 |
| TTHM | MR | 8 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2019 |
| Lead and Copper Rule | MR | 8 | 2021 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 7 | 2015 |
| Consumer Confidence Rule | Other | 6 | 2007 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 4 | 2019 |
| Lead and Copper Rule | Other | 3 | 1999 |
| Revised Total Coliform Rule | MON | 3 | 2023 |
| Coliform (TCR) | MR | 3 | 2013 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.