LEON WATER SUPPLY
PWS ID: IA2742076 · LEON, Iowa 50144
Population Served
1,830
Total Violations
122
Health-Based Violations
52
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 825
- County
- Decatur
- School/Daycare
- No
- MCL Violations
- 43
- Monitoring Violations
- 27
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 20 | 1985 |
| Total Haloacetic Acids (HAA5) | MCL | 9 | 2016 |
| Surface Water Treatment Rule | TT | 9 | 2023 |
| TTHM | MCL | 8 | 2016 |
| TTHM | MR | 6 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2022 |
| Fluoride | MCL | 5 | 1984 |
| Nitrate | MR | 4 | 1989 |
| Atrazine | MR | 4 | 1995 |
| CARBON, TOTAL | MR | 4 | 2018 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1985 |
| Gross Alpha, Excl. Radon and U | MCL | 1 | 1983 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.