MASCOUTAH
Illinois - Community Water System - PWSID: IL1630800
System Information
| PWSID | IL1630800 |
| System Name | MASCOUTAH |
| 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 | MASCOUTAH |
| ZIP Code | 62258 |
| Address | 3 W Main St |
| Organization | HAWKINS, CODY |
| Phone | 618-566-2964 |
Population & Service
| Population Served | 8,759 |
| Service Connections | 3,992 |
Drinking Water Violations (43)
This water system has 43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jun 1, 2014 | Jun 30, 2014 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Jun 1, 2014 | Jun 30, 2014 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Jun 1, 2014 | Jun 30, 2014 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Jun 1, 2014 | Jun 30, 2014 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Jan 1, 1997 | Jan 31, 1997 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1997 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Apr 1, 1995 | Jun 30, 1995 | MCL | Yes | No | .004 | 0.003 mg/L | - | Resolved | Jun 30, 1995 | - | |
| Apr 1, 1995 | Jun 30, 1995 | MCL | Yes | No | .004 | 0.003 mg/L | - | Resolved | Jun 30, 1995 | - | |
| Apr 1, 1995 | Jun 30, 1995 | MCL | Yes | No | .004 | 0.003 mg/L | - | Resolved | Jun 30, 1995 | - | |
| Apr 1, 1995 | Jun 30, 1995 | MCL | Yes | No | .004 | 0.003 mg/L | - | Resolved | Jun 30, 1995 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1994 | Jun 30, 1994 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1994 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 1991 | - | |
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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.