WINTHROP WATER SUPPLY
PWS ID: IA1093031 · WINTHROP, Iowa 50682
Population Served
840
Total Violations
104
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 380
- County
- Buchanan
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 93
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chromium | MR | 11 | 1988 |
| Lead and Copper Rule | MR | 11 | 1990 |
| Nitrate | MR | 11 | 1988 |
| Selenium | MR | 11 | 1988 |
| Arsenic | MR | 11 | 1988 |
| Fluoride | MR | 11 | 1988 |
| Barium | MR | 11 | 1988 |
| Mercury | MR | 11 | 1988 |
| Cadmium | MR | 5 | 1988 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.