DES PLAINES MHP
PWS ID: IL0317775 · DESPLAINES, Illinois 60018
Population Served
405
Total Violations
148
Health-Based Violations
29
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 162
- County
- Cook
- School/Daycare
- No
- MCL Violations
- 29
- Monitoring Violations
- 52
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 28 | 2003 |
| Coliform (TCR) | MR | 18 | 2006 |
| Chlorine | MR | 14 | 2014 |
| Public Notice | Other | 8 | 2023 |
| Lead and Copper Rule | MR | 6 | 2012 |
| TTHM | MR | 4 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2018 |
| Nitrate | MR | 3 | 2001 |
| Combined Radium (-226 and -228) | MR | 3 | 2025 |
| Gross Alpha, Excl. Radon and U | MCL | 1 | 2000 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.