HILLSBORO
Illinois — Community Water System — PWSID: IL1350300
System Information
| PWSID | IL1350300 |
| System Name | HILLSBORO |
| System Type | Community Water System |
| Water Source | Surface 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 | HILLSBORO |
| ZIP Code | 62049 |
| Address | CITY OF HILLSBORO |
| Organization | DOWNS, DON |
| Phone | 217-532-5566 |
Population & Service
| Population Served | 4,402 |
| Service Connections | 2,082 |
Drinking Water Violations (111)
This water system has 111 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 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | 1 mg/L | — | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | 1 mg/L | — | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | 10 mg/L | — | Archived | Jun 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | — | 10 mg/L | — | Archived | Jun 30, 2025 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .063 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2020 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .067 MG/L | 0.060 mg/L | .06 | Resolved | Sep 30, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2010 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 64 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Jul 1, 2009 | Jul 31, 2009 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2009 | — | |
| Jul 1, 2009 | Jul 31, 2009 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2009 | — |
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.