GRENVILLE
PWS ID: SD4600146 · GRENVILLE, South Dakota 57239
Population Served
48
Total Violations
104
Health-Based Violations
6
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 51
- County
- Day
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 68
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 37 | 2014 |
| Lead and Copper Rule | MR | 17 | 2020 |
| Consumer Confidence Rule | Other | 12 | 2003 |
| Coliform (TCR) | MCL | 6 | 1996 |
| Chlorine | MR | 5 | 2014 |
| Coliform (TCR) | Other | 4 | 2000 |
| Public Notice | Other | 3 | 2003 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2015 |
| TTHM | MR | 3 | 2015 |
| Revised Total Coliform Rule | MON | 1 | 2025 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Lead and Copper Rule | Other | 1 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.