WESTMONT
Illinois - Community Water System - PWSID: IL0430950
System Information
| PWSID | IL0430950 |
| System Name | WESTMONT |
| 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 | WESTMONT |
| ZIP Code | 68559 |
| Address | 31 W Quincy St |
| Organization | RIES, AMY N. |
| Phone | 630-981-6289 |
Population & Service
| Population Served | 24,161 |
| Service Connections | 7,021 |
Drinking Water Violations (37)
This water system has 37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 15, 2021 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Jan 15, 2021 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Jan 1, 2008 | Jun 30, 2008 | MR | No | No | - | TT | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2008 | Jun 30, 2008 | MR | No | No | - | TT | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2007 | Jun 30, 2007 | MR | No | No | - | TT | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2007 | Jun 30, 2007 | MR | No | No | - | TT | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 1995 | - | TT | Yes | No | - | TT | - | Resolved | Dec 5, 1996 | - | |
| Jan 1, 1995 | - | TT | Yes | No | - | TT | - | Resolved | Dec 5, 1996 | - | |
| Jan 1, 1995 | - | TT | Yes | No | - | TT | - | Resolved | Dec 5, 1996 | - | |
| 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 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Nov 21, 1990 | Nov 20, 1994 | MCL | Yes | No | 6.3 | 5 pCi/L | - | Resolved | Jan 24, 1992 | - | |
| Dec 9, 1985 | Dec 8, 1989 | MCL | Yes | No | 5.7 | 5 pCi/L | - | Resolved | Feb 1, 1988 | - | |
| Dec 9, 1985 | Dec 8, 1989 | MCL | Yes | No | 5.7 | 5 pCi/L | - | Resolved | Feb 1, 1988 | - | |
| Dec 9, 1985 | Dec 8, 1989 | MCL | Yes | No | 5.7 | 5 pCi/L | - | Resolved | Feb 1, 1988 | - | |
| Dec 9, 1985 | Dec 8, 1989 | MCL | Yes | No | 5.7 | 5 pCi/L | - | Resolved | Feb 1, 1988 | - | |
| Dec 9, 1985 | Dec 8, 1989 | MCL | Yes | No | 5.7 | 5 pCi/L | - | Resolved | Feb 1, 1988 | - | |
| 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.