THAYER
Illinois - Community Water System - PWSID: IL1671250
System Information
| PWSID | IL1671250 |
| System Name | THAYER |
| 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 | THAYER |
| ZIP Code | 62689 |
| Address | PO BOX 139 |
| Organization | MCMAHAN, ROBERT |
| Phone | 217-498-7263 |
Population & Service
| Population Served | 721 |
| Service Connections | 364 |
Drinking Water Violations (93)
This water system has 93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2024 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Sep 3, 2019 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Sep 3, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 16, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 16, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 16, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 16, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 25, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jul 25, 2012 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 18, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 18, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2010 | Jul 31, 2010 | TT | Yes | No | - | - | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | TT | Yes | No | - | - | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | TT | Yes | No | - | - | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | TT | Yes | No | - | - | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | TT | Yes | No | - | - | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2004 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2004 | - | |
| Jul 1, 2002 | - | Other | No | No | - | - | - | Resolved | Jun 18, 2003 | - |
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.