BLACKHAWK ESTATES LLC
Illinois - Community Water System - PWSID: IL0317765
System Information
| PWSID | IL0317765 |
| System Name | BLACKHAWK ESTATES LLC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 29, 1981 |
| Last Reported | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | CHICAGO |
| ZIP Code | 60631 |
| Address | 6547 N. Avondale Ave. |
| Organization | SMITH, JENNIFER |
| Phone | 773-499-7255 |
Population & Service
| Population Served | 1,238 |
| Service Connections | 495 |
Drinking Water Violations (152)
This water system has 152 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 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jun 8, 2024 | - | Other | No | No | - | - | - | Resolved | May 13, 2025 | - | |
| Jun 8, 2024 | - | Other | No | No | - | - | - | Resolved | May 13, 2025 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2024 | - | |
| Mar 1, 2023 | Mar 31, 2023 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2023 | - | |
| Mar 1, 2023 | Mar 31, 2023 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2023 | - | |
| Mar 1, 2023 | Mar 31, 2023 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2023 | - | |
| Mar 1, 2023 | Mar 31, 2023 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2022 | - | |
| 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 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 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 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MON | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MON | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MON | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MON | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 12, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 12, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 12, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 12, 2017 | - | |
| Jan 2, 2013 | - | MR | No | No | - | TT | - | Resolved | Jan 18, 2013 | - | |
| Jan 2, 2013 | - | MR | No | No | - | TT | - | Resolved | Jan 18, 2013 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jan 13, 2012 | - | Other | No | No | - | - | - | Resolved | Feb 25, 2012 | - | |
| Jan 13, 2012 | - | Other | No | No | - | - | - | Resolved | Feb 25, 2012 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jul 22, 2011 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Jul 22, 2011 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2010 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2010 | - | |
| Jan 2, 2010 | - | MR | No | No | - | TT | - | Resolved | Mar 29, 2010 | - | |
| Jan 2, 2010 | - | MR | No | No | - | TT | - | Resolved | Mar 29, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2010 | - |
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.