NASHUA WATER SUPPLY
PWS ID: IA1967041 · NASHUA, Iowa 50658
Population Served
1,551
Total Violations
146
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 710
- County
- Chickasaw
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 116
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 19 | 2013 |
| Public Notice | Other | 8 | 2022 |
| Beryllium, Total | MR | 7 | 2013 |
| CYANIDE | MR | 7 | 2013 |
| Barium | MR | 7 | 2013 |
| Fluoride | MR | 7 | 2013 |
| Mercury | MR | 7 | 2013 |
| Thallium, Total | MR | 7 | 2013 |
| Nitrate | MR | 7 | 2022 |
| Chromium | MR | 7 | 2013 |
| Antimony, Total | MR | 7 | 2013 |
| Selenium | MR | 7 | 2013 |
| Cadmium | MR | 7 | 2013 |
| Revised Total Coliform Rule | MON | 7 | 2022 |
| Coliform (TCR) | MR | 5 | 2009 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 1994 |
| Combined Radium (-226 and -228) | MR | 4 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.