WILLISVILLE
Illinois — Community Water System — PWSID: IL1450300
System Information
| PWSID | IL1450300 |
| System Name | WILLISVILLE |
| 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 | WILLISVILLE |
| ZIP Code | 62997 |
| Address | PO BOX 157 |
| Organization | WARNER, CLARENCE |
| Phone | 618-497-2632 |
Population & Service
| Population Served | 799 |
| Service Connections | 350 |
Drinking Water Violations (61)
This water system has 61 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 12, 2025 | — | Other | No | No | — | — | — | Resolved | Sep 5, 2025 | — | |
| Jul 12, 2025 | — | Other | No | No | — | — | — | Resolved | Sep 5, 2025 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Dec 30, 2021 | — | MR | No | No | — | TT | — | Resolved | Feb 2, 2022 | — | |
| Dec 30, 2021 | — | MR | No | No | — | TT | — | Resolved | Feb 2, 2022 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Sep 1, 2019 | Nov 30, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Nov 30, 2019 | — | |
| Jan 1, 2016 | — | MR | No | No | — | TT | — | Resolved | Jan 21, 2016 | — | |
| Jan 1, 2016 | — | MR | No | No | — | TT | — | Resolved | Jan 21, 2016 | — | |
| Oct 6, 2010 | — | Other | No | No | — | — | — | Resolved | Nov 5, 2010 | — | |
| Oct 6, 2010 | — | Other | No | No | — | — | — | Resolved | Nov 5, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | 1.18 MG/L | 1.0 mg/L | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | 1.18 MG/L | 1.0 mg/L | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | 1.18 MG/L | 1.0 mg/L | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | 1.18 MG/L | 1.0 mg/L | — | Resolved | Jan 31, 2010 | — | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | 1.18 MG/L | 1.0 mg/L | — | Resolved | Jan 31, 2010 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Jul 1, 2005 | — | Other | No | No | — | — | — | Resolved | Sep 1, 2005 | — | |
| Jul 1, 2005 | — | Other | No | No | — | — | — | Resolved | Sep 1, 2005 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Oct 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Aug 22, 2006 | — | |
| Jul 1, 1998 | Jul 31, 1998 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1998 | — | |
| Jul 1, 1998 | Jul 31, 1998 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1998 | — | |
| — | — | — | 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.