LAKE FOREST
Illinois - Community Water System - PWSID: IL0970800
System Information
| PWSID | IL0970800 |
| System Name | LAKE FOREST |
| System Type | Community Water System |
| Water Source | Surface Water |
| 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 | LAKE FOREST |
| ZIP Code | 60045 |
| Address | 1441 Lake Rd. |
| Organization | TIEGS, MICHAEL L. |
| Phone | 847-810-4651 |
Population & Service
| Population Served | 19,642 |
| Service Connections | 6,925 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Feb 1, 2019 | Apr 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Apr 30, 2019 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2018 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2018 | - | |
| Jul 1, 2004 | Sep 30, 2004 | MR | No | Yes | - | TT | - | Resolved | Aug 16, 2004 | - | |
| Jul 1, 2004 | Sep 30, 2004 | MR | No | Yes | - | TT | - | Resolved | Aug 16, 2004 | - | |
| Jul 1, 2004 | Sep 30, 2004 | MR | No | Yes | - | TT | - | Resolved | Aug 16, 2004 | - | |
| Jul 1, 2004 | Sep 30, 2004 | MR | No | Yes | - | TT | - | Resolved | Aug 16, 2004 | - | |
| Jan 1, 1994 | - | TT | Yes | No | - | TT | - | Resolved | Feb 5, 1995 | - | |
| Dec 7, 1992 | - | TT | Yes | No | - | TT | - | Resolved | Aug 30, 1993 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
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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.