MAPLE PARK
Illinois — Community Water System — PWSID: IL0890500
System Information
| PWSID | IL0890500 |
| System Name | MAPLE PARK |
| 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 | MAPLE PARK |
| ZIP Code | 60151 |
| Address | 302 Willow St |
| Organization | ALDRIDGE, CHERYL |
| Phone | 815-827-3309 |
Population & Service
| Population Served | 1,484 |
| Service Connections | 594 |
Drinking Water Violations (222)
This water system has 222 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 | Dec 31, 2025 | MCL | Yes | No | 11 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | — | |
| Oct 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 PCI/L | 5 pCi/L | 5 | Archived | Dec 31, 2025 | — | |
| Sep 19, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2025 | — | |
| Sep 19, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2025 | — | |
| Sep 19, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2025 | — | |
| Sep 19, 2025 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2025 | — | |
| Jul 2, 2025 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Jul 2, 2025 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 11.47 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 11.47 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 11.47 PCI/L | 5 pCi/L | 5 | Archived | Sep 30, 2025 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2024 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2024 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2024 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Nov 3, 2021 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Nov 3, 2021 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2017 | Dec 31, 2019 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 10 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 7 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | — |
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.