MASSENA WATER SUPPLY
PWS ID: IA1558055 · MASSENA, Iowa 50853
Population Served
364
Total Violations
142
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 200
- County
- Cass
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 94
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 29 | 2015 |
| Public Notice | Other | 24 | 2025 |
| TTHM | MR | 15 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2024 |
| Revised Total Coliform Rule | MON | 12 | 2024 |
| Groundwater Rule | TT | 6 | 2022 |
| Arsenic | MR | 5 | 2024 |
| Selenium | MR | 5 | 1985 |
| Arsenic | MCL | 4 | 2023 |
| E. COLI | MR | 4 | 2024 |
| Barium | MR | 2 | 1985 |
| Cadmium | MR | 2 | 1985 |
| Chromium | MR | 2 | 1985 |
| Lead and Copper Rule | MR | 2 | 1988 |
| Fluoride | MR | 2 | 1985 |
| Mercury | MR | 2 | 1985 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.