DORCHESTER
Illinois - Community Water System - PWSID: IL1170250
System Information
| PWSID | IL1170250 |
| System Name | DORCHESTER |
| 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 | DORCHESTER |
| ZIP Code | 62033 |
| Address | 100 Jermain |
| Organization | PRIEJ, ROGER |
| Phone | 314-568-2313 |
Population & Service
| Population Served | 562 |
| Service Connections | 216 |
Drinking Water Violations (81)
This water system has 81 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, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Jan 2, 2011 | - | MR | No | No | - | TT | - | Resolved | Jan 20, 2011 | - | |
| Jan 2, 2011 | - | MR | No | No | - | TT | - | Resolved | Jan 20, 2011 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2011 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2011 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2011 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2011 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Oct 30, 2007 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Oct 30, 2007 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Dec 16, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Dec 16, 2004 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Sep 24, 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 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Sep 24, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Sep 24, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Sep 24, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Jun 30, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Jun 30, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Jun 30, 1997 | - | |
| Apr 1, 1997 | Jun 30, 1997 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Jun 30, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MCL | Yes | No | .01 | 0.003 mg/L | - | Resolved | Mar 31, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MCL | Yes | No | .01 | 0.003 mg/L | - | Resolved | Mar 31, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MCL | Yes | No | .01 | 0.003 mg/L | - | Resolved | Mar 31, 1997 | - | |
| Jan 1, 1997 | Mar 31, 1997 | MCL | Yes | No | .01 | 0.003 mg/L | - | Resolved | Mar 31, 1997 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Oct 1, 1996 | Dec 31, 1996 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Dec 31, 1996 | - | |
| Oct 1, 1996 | Dec 31, 1996 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Dec 31, 1996 | - | |
| Oct 1, 1996 | Dec 31, 1996 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Dec 31, 1996 | - | |
| Oct 1, 1996 | Dec 31, 1996 | MCL | Yes | No | .009 | 0.003 mg/L | - | Resolved | Dec 31, 1996 | - | |
| Jul 1, 1996 | Sep 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Jul 1, 1996 | Sep 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Jul 1, 1996 | Sep 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Apr 1, 1996 | Jun 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Jun 30, 1996 | - | |
| Apr 1, 1996 | Apr 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1996 | - | |
| Apr 1, 1996 | Apr 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1996 | - | |
| Apr 1, 1996 | Jun 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Jun 30, 1996 | - | |
| Apr 1, 1996 | Jun 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Jun 30, 1996 | - | |
| Apr 1, 1996 | Jun 30, 1996 | MCL | Yes | No | .011 | 0.003 mg/L | - | Resolved | Jun 30, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1996 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1995 | - |
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.