WINTHROP HARBOR
Illinois - Community Water System - PWSID: IL0971950
System Information
| PWSID | IL0971950 |
| System Name | WINTHROP HARBOR |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | WINTHROP HARBOR |
| ZIP Code | 60096 |
| Address | VILLAGE OF WINTHROP HARBOR |
| Organization | NEARGARDER, TIMOTHY |
| Phone | 847-872-5275 |
Population & Service
| Population Served | 6,565 |
| Service Connections | 2,172 |
Drinking Water Violations (102)
This water system has 102 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 | - | - | |
| Jan 12, 2025 | - | Other | No | No | - | - | - | Resolved | Jan 22, 2025 | - | |
| Jan 12, 2025 | - | Other | No | No | - | - | - | Resolved | Jan 22, 2025 | - | |
| Oct 11, 2024 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2024 | - | |
| Oct 11, 2024 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2024 | - | |
| Oct 11, 2024 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2024 | - | |
| Oct 11, 2024 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 17, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 17, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 23, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 23, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 23, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 23, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Dec 30, 2022 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 21, 2021 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Aug 16, 2021 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Apr 21, 2021 | - | |
| Dec 30, 2020 | - | MR | No | No | - | TT | - | Resolved | Apr 21, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Sep 29, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Sep 29, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Sep 29, 2021 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 31, 2019 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 31, 2019 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Oct 4, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Oct 4, 2018 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Jan 25, 2018 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Jan 25, 2018 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2017 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2017 | - |
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.