DOWNERS GROVE
Illinois - Community Water System - PWSID: IL0430300
System Information
| PWSID | IL0430300 |
| System Name | DOWNERS GROVE |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | DOWNERS GROVE |
| ZIP Code | 60515 |
| Address | 5101 Walnut Ave. |
| Organization | MOODY, DAVID |
| Phone | 630-434-5474 |
Population & Service
| Population Served | 49,425 |
| Service Connections | 17,735 |
Drinking Water Violations (36)
This water system has 36 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2017 | Jun 30, 2017 | MON | No | No | - | - | - | Resolved | Jun 30, 2017 | - | |
| Jun 1, 2017 | Jun 30, 2017 | MON | No | No | - | - | - | Resolved | Jun 30, 2017 | - | |
| Jun 1, 2017 | Jun 30, 2017 | MON | No | No | - | - | - | Resolved | Jun 30, 2017 | - | |
| Jun 1, 2017 | Jun 30, 2017 | MON | No | No | - | - | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Apr 1, 1999 | Apr 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1999 | - | |
| Apr 1, 1999 | Apr 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1999 | - | |
| Apr 1, 1999 | Apr 30, 1999 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1999 | - | |
| Apr 1, 1999 | Apr 30, 1999 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1999 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1994 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1992 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.