HARMON
Illinois — Community Water System — PWSID: IL1030300
System Information
| PWSID | IL1030300 |
| System Name | HARMON |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | HARMON |
| ZIP Code | 61042 |
| Address | Village of Harmon |
| Organization | NELSON, BETH |
| Phone | — |
Population & Service
| Population Served | 111 |
| Service Connections | 75 |
Drinking Water Violations (281)
This water system has 281 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, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 31, 2025 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Resolved | Feb 20, 2024 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Resolved | Feb 20, 2024 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Resolved | Feb 20, 2024 | — | |
| Dec 30, 2022 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Sep 14, 2022 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Sep 14, 2022 | — | |
| Jan 15, 2022 | — | Other | No | No | — | — | — | Resolved | Mar 25, 2022 | — | |
| Jan 15, 2022 | — | Other | No | No | — | — | — | Resolved | Mar 25, 2022 | — | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2021 | — | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2021 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Sep 30, 2021 | — | |
| Apr 25, 2021 | — | Other | No | No | — | — | — | Resolved | Apr 18, 2024 | — | |
| Apr 25, 2021 | — | Other | No | No | — | — | — | Resolved | Apr 18, 2024 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2021 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2020 | — | |
| Dec 30, 2019 | — | MR | No | No | — | TT | — | Resolved | Feb 6, 2020 | — | |
| Dec 30, 2019 | — | MR | No | No | — | TT | — | Resolved | Feb 6, 2020 | — | |
| Jul 1, 2016 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2016 | — | |
| Jul 1, 2016 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2016 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2014 | — | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2008 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2008 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | 13 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | 13 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | 13 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | 13 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | 13 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2007 | — |
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.