Drinking Water Compliance OS

DUBUQUE, IA · Dubuque County

KNAPP MOBILE HOME COURT NO 4 Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 25, 2022. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Dubuque County, IA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID)
IA3100602
System type
Community Water System
Population served
20
Service connections
18
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 21, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 25, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 25, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 24, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 24, 2021 – September 28, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    April 1, 2021 – April 30, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2021 – March 31, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    February 22, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    February 22, 2021 – September 28, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2021 – February 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 20, 2021 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 25, 2020 – September 28, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2020 – October 31, 2020

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 23, 2020 – September 28, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2020 – August 31, 2020

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 20, 2020 – September 28, 2021

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2020 – February 16, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2020 – July 31, 2020

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 21, 2020 – September 28, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 22, 2020 – September 28, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2020 – May 31, 2020

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    April 1, 2020 – April 30, 2020

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    January 1, 2020 – January 31, 2020

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2019 – December 31, 2019

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2019 – February 25, 2022

    Archived
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2018 – February 16, 2022

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    July 1, 2009 – December 24, 2009

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2009 – June 30, 2009

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 2008 – January 31, 2009

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 2008 – January 31, 2009

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 2008 – January 31, 2009

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 2008 – January 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2008 – September 30, 2008

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 2007 – July 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2006 – October 31, 2006

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2002 – March 31, 2008

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2000 – June 30, 2000

    Resolved
  • Monitoring, Regular

    Nitrite

    July 1, 1996 – July 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 1994 – August 31, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 1993 – September 30, 1993

    Resolved
  • Monitoring, Regular

    Nitrate

    October 1, 1991 – December 31, 1991

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 1989 – March 31, 1989

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 1989 – March 31, 1989

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 1989 – March 31, 1989

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 1988 – March 31, 1988

    Resolved
  • Monitoring, Regular

    Nitrate

    July 1, 1987 – September 30, 1987

    Resolved
  • Monitoring, Regular

    Arsenic

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Nitrate

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Mercury

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Fluoride

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Chromium

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Cadmium

    September 30, 1980 – September 29, 1983

    Archived
  • Monitoring, Regular

    Selenium

    September 30, 1980 – September 29, 1983

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Last known contact on file (system is inactive)

KNAPP MOBILE HOME COURT NO 4

563-582-7466

DUBUQUE, IA 52001