OAK PARK
Illinois - Community Water System - PWSID: IL0312250
System Information
| PWSID | IL0312250 |
| System Name | OAK PARK |
| 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 | OAK PARK |
| ZIP Code | 60302 |
| Address | 201 South Blvd |
| Organization | DUFFY, ERIN |
| Phone | 708-358-5704 |
Population & Service
| Population Served | 54,583 |
| Service Connections | 12,683 |
Drinking Water Violations (29)
This water system has 29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 1997 | Jun 30, 1997 | MR | No | No | - | TT | - | Resolved | Jun 30, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MR | No | No | - | TT | - | Resolved | Mar 31, 1997 | - | |
| Jan 1, 1994 | - | TT | Yes | No | - | TT | - | Resolved | Feb 5, 1995 | - | |
| Jan 1, 1994 | Sep 23, 1993 | MR | No | No | - | TT | - | Archived | Sep 23, 1993 | - | |
| Jul 1, 1993 | Sep 23, 1993 | MR | No | No | - | TT | - | Archived | Sep 23, 1993 | - | |
| Dec 7, 1992 | - | TT | Yes | No | - | TT | - | Resolved | Jan 3, 1994 | - | |
| Dec 7, 1992 | - | TT | Yes | No | - | TT | - | Resolved | Jan 3, 1994 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Sep 23, 1993 | MR | No | No | - | TT | - | Archived | Sep 23, 1993 | - | |
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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.