Drinking Water Compliance OS

Thermal, 09

DD Mobile Home Park Water System

Current status

3 open health-based violations on record as of July 4, 2026, alongside 8 other open item(s). See the violation history below for contaminant and status details.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

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 EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID)
090605160
System type
Community Water System
Population served
300
Service connections
76
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    November 1, 2025 – December 18, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    October 1, 2025 – November 17, 2025

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    October 1, 2025

    Unaddressed
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2025 – December 31, 2025

    Archived
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    September 1, 2025 – November 17, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 1, 2025

    Unaddressed
  • Monitoring, Regular

    Fluoride

    July 1, 2025 – September 30, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2025 – July 31, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 1, 2025

    Unaddressed
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2025 – September 30, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    June 1, 2025 – July 21, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    May 1, 2025 – June 22, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    April 1, 2025 – June 22, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 1, 2025

    Unaddressed
  • Monitoring, Regular

    Fluoride

    April 1, 2025 – June 30, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2025 – June 30, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    March 1, 2025 – May 6, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 1, 2025

    Unaddressed
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2025 – May 6, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    February 1, 2025

    Unaddressed
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    January 1, 2025 – February 18, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2025 – May 6, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2024 – November 30, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Regular

    Fluoride

    October 1, 2024 – November 15, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    September 1, 2024 – November 12, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    August 1, 2024 – September 18, 2024

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2024 – August 4, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    July 1, 2024 – August 16, 2024

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    June 20, 2024 – August 4, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 20, 2024 – August 4, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 20, 2024 – August 4, 2025

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    June 20, 2024

    Unaddressed
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2024 – June 30, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 1, 2024

    Unaddressed
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2024 – March 31, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 1, 2024 – August 4, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2024 – March 31, 2024

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2024 – March 31, 2024

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2024 – March 31, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    December 1, 2023 – January 23, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    November 1, 2023 – January 23, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2023 – December 31, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    October 1, 2023 – January 23, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2023 – September 30, 2023

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2023 – August 4, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    June 1, 2023 – July 31, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    May 1, 2023 – July 31, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    April 1, 2023 – May 22, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2023 – February 28, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    February 1, 2023 – August 4, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2023 – March 29, 2023

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2023 – March 31, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2022 – November 30, 2022

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    October 29, 2022

    Unaddressed
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2022 – December 31, 2022

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    October 1, 2022 – November 17, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2022 – November 18, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 1, 2022 – August 4, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2022 – November 18, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 1, 2022 – August 4, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2022 – August 23, 2021

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2022 – December 31, 2022

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    October 1, 2021 – November 18, 2021

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    September 1, 2021 – November 18, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2021 – July 9, 2021

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    May 1, 2021

    Unaddressed
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    May 1, 2021 – January 1, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 1, 2021 – August 4, 2025

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    May 1, 2021

    Unaddressed
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    May 1, 2021 – January 1, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 1, 2021 – August 4, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 1, 2021 – August 4, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 1, 2021 – August 4, 2025

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    April 1, 2021 – July 9, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2021 – June 30, 2021

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2021 – March 11, 2021

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2021 – March 11, 2021

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    December 1, 2020 – February 10, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2020 – November 30, 2020

    Resolved
  • Monitoring, Routine (IDSE)

    Total Haloacetic Acids (HAA5)

    January 1, 2020 – December 31, 2022

    Resolved
  • Monitoring, Routine (IDSE)

    TTHM

    January 1, 2020 – December 31, 2022

    Resolved
  • Treatment Technique No Certif. Operator

    Health-based

    Stage 1 Disinfectants and Disinfection Byproducts Rule

    October 1, 2019 – October 5, 2020

    Resolved
  • Monitoring, Regular

    Fluoride

    July 1, 2018 – September 30, 2018

    Resolved
  • Monitoring, Regular

    Arsenic

    July 1, 2018 – September 30, 2018

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    September 21, 2017 – February 7, 2018

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2017 – December 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Fluoride

    July 1, 2016 – September 30, 2016

    Resolved
  • Sample Siting Plan Errors (RTCR)

    Revised Total Coliform Rule

    April 1, 2016 – October 2, 2017

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2016 – January 15, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2015 – January 31, 2015

    Resolved
  • Monitoring, Regular

    Fluoride

    July 1, 2014 – September 30, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2014 – June 30, 2014

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    February 1, 2014 – February 28, 2014

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    January 1, 2014 – January 31, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2014 – March 31, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2013 – October 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Arsenic

    October 1, 2013 – December 31, 2013

    Resolved
  • Monitoring, Regular

    Fluoride

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2013 – December 31, 2013

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    Stage 2 Disinfectants and Disinfection Byproducts Rule

    October 1, 2013 – October 2, 2017

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Arsenic

    July 1, 2013 – September 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2013 – September 30, 2013

    Resolved
  • Monitoring, Regular

    Fluoride

    July 1, 2013 – September 30, 2013

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    July 1, 2013 – July 31, 2013

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2013 – September 10, 2014

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 1, 2013 – August 27, 2014

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    June 1, 2013 – June 30, 2013

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    June 1, 2013 – December 5, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2013 – April 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2013 – June 30, 2013

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 1, 2013 – August 27, 2014

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2013 – March 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2012 – March 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2011 – September 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2011 – June 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2011 – March 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2010 – December 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2010 – September 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Regular

    Arsenic

    April 1, 2010 – June 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2010 – March 31, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2010 – January 31, 2010

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2010 – March 31, 2010

    Resolved
  • Monitoring, Regular

    Arsenic

    October 1, 2009 – December 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Arsenic

    July 1, 2009 – September 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2009 – September 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2009 – June 30, 2009

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2009 – March 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2009 – March 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2008 – December 31, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2008 – September 30, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2008 – June 30, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2008 – March 31, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2007 – December 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2007 – September 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2007 – June 30, 2007

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    October 1, 2006 – October 31, 2006

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2006 – January 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2006 – December 31, 2006

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    October 1, 2005 – October 31, 2005

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2004 – December 31, 2004

    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

Contact

DD Mobile Home Park

7603990152

Thermal, CA 92274