Drinking Water Compliance OS

WOLF CREEK, MT · Lewis and Clark County

MILFORD COLONY INC Water System

Current status

No open violations on record as of July 4, 2026.

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

System facts

System ID (PWSID)
MT0001646
System type
Community Water System
Population served
67
Service connections
11
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2025 – June 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2025 – March 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2024 – December 31, 2024

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2024 – September 30, 2024

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2024 – May 31, 2024

    Resolved
  • Monitoring, Regular

    Antimony, Total

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    Antimony, Total

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2023 – September 30, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    August 1, 2023 – August 31, 2023

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2023 – July 27, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2023 – September 30, 2023

    Archived
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2023 – March 31, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2023 – February 28, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2023 – January 31, 2023

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2023 – October 18, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2023 – October 18, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2022 – October 31, 2022

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2022 – April 30, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2022 – March 31, 2022

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2022 – January 31, 2022

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2021 – December 31, 2021

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2021 – May 27, 2022

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2021 – October 31, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2021 – July 31, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2021 – June 30, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2021 – May 31, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2021 – April 30, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2021 – February 28, 2021

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2021 – December 31, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2020 – December 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2020 – October 31, 2020

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2020 – December 8, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2020 – August 31, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2020 – August 31, 2021

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2020 – September 30, 2020

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2020 – December 7, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2020 – July 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2020 – June 30, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2020 – May 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2020 – April 30, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2020 – March 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2020 – February 29, 2020

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2019 – October 28, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2019 – August 31, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2019 – August 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2019 – September 30, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2019 – September 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2019 – September 30, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2019 – July 31, 2019

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2019 – August 26, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2019 – June 30, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2019 – May 31, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2019 – April 30, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2019 – March 31, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2019 – February 28, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2019 – December 31, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2019 – December 31, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2018 – December 31, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    November 1, 2018 – November 30, 2018

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2018 – August 29, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2018 – September 20, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    August 1, 2018 – August 31, 2018

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2018 – October 28, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2018 – July 31, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2018 – June 30, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2018 – April 30, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2018 – June 30, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2018 – March 31, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2018 – January 31, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2017 – December 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    November 1, 2017 – November 30, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2017 – October 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2017 – September 30, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    August 31, 2017 – August 30, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    August 31, 2017 – August 30, 2018

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    August 1, 2017 – August 31, 2017

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2017 – October 12, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2017 – July 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2017 – June 30, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2017 – May 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2017 – April 30, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2017 – March 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2017 – February 28, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2017 – January 31, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2016 – December 31, 2016

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2016 – December 8, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2016 – October 31, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2016 – September 30, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    August 1, 2016 – August 31, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2016 – July 31, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2016 – August 26, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2016 – June 30, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2016 – May 31, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2016 – March 31, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2016 – January 31, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2015 – December 31, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2015 – November 30, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    November 1, 2015 – November 30, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2015 – October 31, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2015 – September 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    August 31, 2015 – August 30, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    August 31, 2015 – August 30, 2016

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    July 1, 2015 – July 31, 2015

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2015 – July 20, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    May 1, 2015 – May 31, 2015

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    April 1, 2015 – December 15, 2017

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2015 – April 30, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    March 1, 2015 – March 31, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2015 – February 28, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    January 1, 2015 – January 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2015 – August 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2015 – August 30, 2015

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2014 – December 31, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    November 1, 2014 – November 30, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    October 1, 2014 – October 31, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2014 – September 30, 2014

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2014 – September 25, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2014 – June 30, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2014 – June 30, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    April 1, 2014 – April 30, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2014 – March 31, 2014

    Resolved
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    February 1, 2014 – February 28, 2014

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2013 – March 31, 2013

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2012 – September 10, 2014

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – August 25, 2014

    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, Single Sample

    Health-based

    Arsenic

    July 1, 2011 – September 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2010 – March 31, 2010

    Archived
  • Monitoring, Regular

    Arsenic

    October 1, 2009 – December 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2009 – September 30, 2009

    Archived
  • Monitoring, Regular

    Arsenic

    January 1, 2009 – March 31, 2009

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2008 – September 11, 2008

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2008 – August 26, 2008

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2008 – June 30, 2008

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2008 – March 31, 2008

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2007 – June 8, 2009

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2007 – September 30, 2007

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2007 – June 30, 2007

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2006 – March 12, 2007

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2005 – December 31, 2005

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Arsenic

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2005 – December 31, 2005

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2004 – June 8, 2009

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2002 – December 31, 2004

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1999 – September 30, 1999

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 1997 – August 31, 1997

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved

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

Enforcement actions

Contact

HOFER, JOHN J

406-562-3533

WOLF CREEK, MT 59648