South Dakota Water Alerts — No Active Issues
Data source: NWS, EPA SDWIS Last verified: 2026-04-30
No active water-related issues in South Dakota as of 2026-04-30. This page monitors weather alerts, EPA violations, enforcement actions, and boil water advisories.
High-Risk Areas (Forecast)
ZIP codes in South Dakota with the highest probability of future violations:
| ZIP | City | 2-Year Probability | Trend |
|---|---|---|---|
| 57001 | Alcester | 95% | increasing |
| 57040 | Lesterville | 95% | stable |
| 57070 | Viborg | 95% | stable |
| 57078 | Yankton | 95% | declining |
| 57101 | Sioux Falls | 95% | increasing |
| 57103 | Sioux Falls | 95% | increasing |
| 57104 | Sioux Falls | 95% | increasing |
| 57105 | Sioux Falls | 95% | increasing |
| 57106 | Sioux Falls | 95% | increasing |
| 57107 | Sioux Falls | 95% | increasing |
Sources
- Weather alerts: National Weather Service
- Violations & enforcement: EPA SDWIS
- Compliance forecasts: ZipCheckup analysis
This page is regenerated daily. For real-time weather, visit weather.gov.