WINTHROP HARBOR

Illinois — Community Water System — PWSID: IL0971950

System Information

PWSIDIL0971950
System NameWINTHROP HARBOR
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedFeb 26, 2026

Location & Contact

StateIllinois
CityWINTHROP HARBOR
ZIP Code60096
AddressVILLAGE OF WINTHROP HARBOR
OrganizationNEARGARDER, TIMOTHY
Phone847-872-5275

Population & Service

Population Served6,565
Service Connections2,172

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.

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