LEMONT
Illinois - Community Water System - PWSID: IL0311620
System Information
| PWSID | IL0311620 |
| System Name | LEMONT |
| 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 | LEMONT |
| ZIP Code | 60439 |
| Address | 418 MAIN ST. |
| Organization | SCHAFER, GEORGE |
| Phone | 630-257-1590 |
Population & Service
| Population Served | 17,500 |
| Service Connections | 6,396 |
Drinking Water Violations (140)
This water system has 140 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 31, 2025 | - | TT | Yes | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 27, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 27, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 27, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 27, 2024 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 15, 2021 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 15, 2021 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | 26 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2015 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Aug 7, 2013 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Aug 7, 2013 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Mar 31, 2007 | - | |
| Mar 1, 1998 | Mar 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 1998 | - | |
| Mar 1, 1998 | Mar 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 1998 | - | |
| Mar 1, 1998 | Mar 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 1998 | - | |
| Dec 5, 1997 | Apr 10, 2001 | MCL | Yes | No | 15.5 | 15 pCi/L | - | Resolved | Dec 5, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Sep 30, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 4, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 11, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 11, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 17, 1997 | - |
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.