LAKE IN THE HILLS
Illinois - Community Water System - PWSID: IL1110400
System Information
| PWSID | IL1110400 |
| System Name | LAKE IN THE HILLS |
| System Type | Community Water System |
| Water Source | Ground 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 IN THE HILLS |
| ZIP Code | 60156 |
| Address | 9010 HALIGUS ROAD |
| Organization | RIVERA, KEVIN |
| Phone | 847-960-7520 |
Population & Service
| Population Served | 28,661 |
| Service Connections | 9,590 |
Drinking Water Violations (56)
This water system has 56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 8, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 8, 2013 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Sep 10, 2005 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2005 | - | |
| Sep 10, 2005 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2005 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 2 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 2 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | Yes | - | 2 mg/L | - | Resolved | Mar 31, 1999 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Jul 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1995 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1995 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1995 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1995 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| Sep 14, 1984 | Sep 13, 1988 | MCL | Yes | No | 6.2 | 5 pCi/L | - | Resolved | Jul 1, 1986 | - | |
| 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 | - | - | - | - | - | - |
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.