HORICON WATERWORKS

Wisconsin — Community Water System — PWSID: WI1140146

System Information

PWSIDWI1140146
System NameHORICON WATERWORKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedJan 28, 1981
Last ReportedDec 17, 2025

Location & Contact

StateWisconsin
CityHORICON
ZIP Code53032-1260
Address404 E LAKE ST
OrganizationHORICON INTERIM CITY CLERK - CHRIS SPILKER
Phone

Population & Service

Population Served3,682
Service Connections1,363

Drinking Water Violations (29)

This water system has 29 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
Jan 1, 2023 Groundwater Rule TT Yes No Resolved Jan 18, 2023 Ground Water Rule
Jan 1, 2023 Groundwater Rule TT Yes No Resolved Jan 18, 2023 Ground Water Rule
Jan 1, 2023 Groundwater Rule TT Yes No Resolved Jan 18, 2023 Ground Water Rule
Jan 1, 2018 Lead and Copper Rule MR No No TT Resolved Jan 16, 2018 Lead and Copper Rule
Jan 1, 2018 Lead and Copper Rule MR No No TT Resolved Jan 16, 2018 Lead and Copper Rule
Jan 1, 2014 Groundwater Rule TT Yes No Resolved Apr 3, 2014 Ground Water Rule
Jan 1, 2014 Groundwater Rule TT Yes No Resolved Apr 3, 2014 Ground Water Rule
Jan 1, 2014 Groundwater Rule TT Yes No Resolved Apr 3, 2014 Ground Water Rule
Jan 1, 2014 Groundwater Rule TT Yes No Resolved Apr 3, 2014 Ground Water Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Jul 1, 2008 Sep 30, 2008 Chlorine MR No No 4.0 mg/L Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Lead and Copper Rule MR No No TT Resolved Jan 29, 2009 Lead and Copper Rule
Jan 1, 2008 Lead and Copper Rule MR No No TT Resolved Jan 29, 2009 Lead and Copper Rule
Jan 1, 2008 Lead and Copper Rule MR No No TT Resolved Jan 29, 2009 Lead and Copper Rule
Jan 1, 2008 Lead and Copper Rule MR No No TT Resolved Jan 29, 2009 Lead and Copper Rule
Jan 1, 2008 Lead and Copper Rule MR No No TT Resolved Jan 29, 2009 Lead and Copper Rule
Jun 1, 2007 Jun 30, 2007 Coliform (TCR) MCL Yes No 5% of samples Resolved Jun 28, 2007 Total Coliform Rule
Jun 1, 2007 Jun 30, 2007 Coliform (TCR) MCL Yes No 5% of samples Resolved Jun 28, 2007 Total Coliform Rule
Jun 1, 2007 Jun 30, 2007 Coliform (TCR) MCL Yes No 5% of samples Resolved Jun 28, 2007 Total Coliform Rule
Jun 1, 2007 Jun 30, 2007 Coliform (TCR) MCL Yes No 5% of samples Resolved Jun 28, 2007 Total Coliform Rule
Jul 1, 2006 Jul 31, 2006 Coliform (TCR) MCL Yes No 5% of samples Resolved Jul 31, 2006 Total Coliform Rule
Jul 1, 2006 Jul 31, 2006 Coliform (TCR) MCL Yes No 5% of samples Resolved Jul 31, 2006 Total Coliform Rule
Jul 1, 2005 Jul 31, 2005 Coliform (TCR) MCL Yes No 5% of samples Resolved Jul 28, 2005 Total Coliform Rule
Nov 1, 2001 Nov 30, 2001 Coliform (TCR) MCL Yes No 5% of samples Resolved Nov 30, 2001 Total Coliform Rule
Nov 1, 2001 Nov 30, 2001 Coliform (TCR) MCL Yes No 5% of samples Resolved Nov 30, 2001 Total Coliform Rule
Jul 1, 1991 Jul 31, 1991 Coliform (TCR) MCL Yes No 5% of samples Archived Jul 31, 1991 Total Coliform Rule
Jul 1, 1991 Jul 31, 1991 Coliform (TCR) MCL Yes No 5% of samples Archived Jul 31, 1991 Total Coliform Rule
Jul 1, 1991 Jul 31, 1991 Coliform (TCR) MCL Yes No 5% of samples Archived Jul 31, 1991 Total Coliform Rule

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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