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FOND DU LAC WATERWORKS

Wisconsin — Community Water System — PWSID: WI4200469

System Information

PWSIDWI4200469
System NameFOND DU LAC WATERWORKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerYes
First ReportedJan 28, 1981
Last ReportedDec 17, 2025

Location & Contact

StateWisconsin
CityFOND DU LAC
ZIP Code54936-0150
AddressPO BOX 150
OrganizationFOND DU LAC CITY CLERK - MARGARET HEFTER
Phone—

Population & Service

Population Served44,303
Service Connections16,408

Drinking Water Violations (308)

This water system has 308 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
Oct 17, 2024 — Public Notice Other No No — — — Resolved Jun 12, 2025 Public Notice Rule and Revised PN Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Mar 25, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Mar 25, 2025 Lead and Copper Rule Revisions
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 11, 2019 Consumer Confidence Rule
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 11, 2019 Consumer Confidence Rule
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 11, 2019 Consumer Confidence Rule
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 11, 2019 Consumer Confidence Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Jun 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Jun 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Jun 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 TTHM MR No No — 0.080 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 TTHM MR No No — 0.080 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 TTHM MR No No — 0.080 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 TTHM MR No No — 0.080 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 12, 2011 Consumer Confidence Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 12, 2011 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 12, 2011 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 12, 2011 Consumer Confidence Rule
Jan 1, 2009 Mar 31, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2009 Arsenic Rule
Jan 1, 2009 Mar 31, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2009 Arsenic Rule
Jan 1, 2009 Mar 31, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2009 Arsenic 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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