SAINT MARYS WATER CORPORATION
PWS ID: IA9176019 · SAINT CHARLES, Iowa 50240
Population Served
121
Total Violations
125
Health-Based Violations
56
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 69
- County
- Warren
- School/Daycare
- No
- MCL Violations
- 56
- Monitoring Violations
- 62
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 24 | 1991 |
| Carbon tetrachloride | MR | 24 | 1994 |
| TTHM | MCL | 20 | 2008 |
| Nitrate | MR | 20 | 1995 |
| Coliform (TCR) | MR | 13 | 2000 |
| Nitrate | MCL | 12 | 1995 |
| Revised Total Coliform Rule | MON | 5 | 2018 |
| Consumer Confidence Rule | Other | 3 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.