WINSLOW
Illinois — Community Water System — PWSID: IL1770550
System Information
| PWSID | IL1770550 |
| System Name | WINSLOW |
| 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 | FREEPORT |
| ZIP Code | 61032 |
| Address | FEHR GRAHAM |
| Organization | GLENDENNING, THOMAS |
| Phone | 815-235-7643 |
Population & Service
| Population Served | 350 |
| Service Connections | 160 |
Drinking Water Violations (130)
This water system has 130 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 | — | — | |
| Jul 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jan 16, 2025 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jan 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jan 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jan 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Resolved | Jul 8, 2025 | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Resolved | Jul 8, 2025 | — | |
| Jan 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Jul 9, 2024 | — | |
| Jan 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Jul 9, 2024 | — | |
| Jan 1, 2024 | — | MR | No | No | — | TT | — | Resolved | Jul 9, 2024 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Aug 3, 2022 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Aug 3, 2022 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Apr 1, 2021 | Jun 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | — | |
| Apr 1, 2021 | Jun 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | — | |
| May 2, 2020 | — | Other | No | No | — | — | — | Resolved | Dec 21, 2020 | — | |
| May 2, 2020 | — | Other | No | No | — | — | — | Resolved | Dec 21, 2020 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| May 2, 2020 | — | TT | Yes | No | — | TT | — | Resolved | Apr 23, 2021 | — | |
| Jan 1, 2018 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2018 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2018 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2018 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 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.