Public Water Partners

WI · Waukesha County

WAUKESHA WATER UTILITY Water System

Consumer Confidence Report status

WAUKESHA WATER UTILITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 2 items for WAUKESHA WATER UTILITY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wisconsin’s official records. Always confirm current status with Wisconsin before making decisions based on this information.

System facts

System ID (PWSID)
WI2680238
System type
Community Water System
Population served
70,718
Service connections
26,192
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

WAUKESHA WATER UTILITY is among the 7 largest community water systems in Wisconsin, serving 70,718 people from surface water.

As of August 1, 2026, its federal record holds 242 entries between 1992 and 2023, of which 2 remain open; none are health-based.

Of the 242, 4 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, the Public Notice Rule and Revised PN Rule, and volatile organic chemicals.

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2023 – October 15, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 29, 2023

    Unaddressed
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 29, 2023

    Unaddressed
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 20, 2023 – January 24, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2023 – September 30, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2023 – September 30, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2023 – June 30, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2023 – June 30, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 6, 2023 – June 29, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2023 – March 31, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2023 – March 31, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 9, 2022 – March 1, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 21, 2022 – March 1, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 21, 2022 – March 1, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 21, 2022 – March 1, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 21, 2022 – March 1, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 21, 2022 – March 1, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2022 – December 31, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2022 – December 31, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2022 – December 31, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2022 – March 31, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2022 – March 31, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2022 – March 31, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 21, 2021 – March 7, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 21, 2021 – March 7, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 21, 2021 – March 7, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 21, 2021 – March 7, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2021 – December 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2021 – December 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2021 – December 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2021 – September 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2021 – September 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2021 – September 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2021 – September 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2021 – September 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2021 – June 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2021 – June 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2021 – June 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2021 – June 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2021 – June 30, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2021 – March 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2021 – March 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2021 – March 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2021 – March 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2021 – March 31, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2021 – March 31, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 28, 2020 – January 7, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 28, 2020 – January 7, 2021

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2020 – December 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2020 – December 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2020 – December 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2020 – December 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2020 – December 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2020 – September 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2020 – June 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2020 – June 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2020 – June 30, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2020 – March 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2020 – March 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2020 – March 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2019 – June 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2019 – March 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2019 – March 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2019 – March 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2019 – March 31, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 2, 2018 – March 27, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2018 – September 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2018 – September 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2018 – September 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2018 – September 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2018 – June 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2018 – June 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2018 – June 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2018 – March 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2018 – March 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2018 – March 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2017 – December 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2017 – September 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2017 – September 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2017 – September 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2017 – September 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2017 – June 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2017 – June 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2017 – June 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2017 – June 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2017 – March 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2017 – March 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2017 – March 31, 2017

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 3, 2016 – February 24, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2016 – December 31, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 16, 2016 – December 30, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 16, 2016 – December 30, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 16, 2016 – December 30, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 16, 2016 – December 30, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 24, 2016 – November 5, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 6, 2016 – September 22, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 6, 2016 – September 22, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2016 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2016 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2016 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2016 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2016 – June 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2016 – June 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2016 – June 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2016 – June 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2016 – June 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2016 – March 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2016 – March 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2016 – March 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2016 – March 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2015 – December 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2015 – December 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2015 – December 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2015 – December 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2015 – September 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2015 – September 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2015 – September 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2015 – September 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2015 – June 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2015 – June 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2015 – June 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2015 – June 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2015 – June 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2015 – March 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2015 – March 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2015 – March 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2015 – March 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2014 – December 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2014 – June 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2014 – June 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2014 – June 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2014 – June 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2014 – March 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2013 – September 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2013 – September 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2013 – September 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2013 – March 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2013 – March 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2013 – March 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2013 – March 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2012 – March 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2012 – March 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2011 – December 31, 2011

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2011 – July 15, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2011 – June 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2011 – June 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2011 – June 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2011 – March 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2011 – March 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2010 – December 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2010 – December 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    October 1, 2010 – December 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2010 – September 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2010 – June 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2010 – June 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2010 – March 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2009 – June 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2009 – June 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2009 – March 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2009 – March 31, 2009

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2003 – July 23, 2003

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 2, 2003 – February 22, 2011

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 1994 – December 31, 1994

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 1994 – December 31, 1994

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 1994 – January 1, 2003

    Archived
  • Monitoring, Regular

    Toluene

    January 1, 1994 – December 31, 1994

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    November 1, 1992 – November 30, 1992

    Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is WAUKESHA WATER UTILITY required to publish a Consumer Confidence Report?

Yes. WAUKESHA WATER UTILITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is WAUKESHA WATER UTILITY’s next Consumer Confidence Report due?

WAUKESHA WATER UTILITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does WAUKESHA WATER UTILITY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 2 items for WAUKESHA WATER UTILITY that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

Not on record

Phone not on record