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NATIONAL BISON RANGE

Montana — Transient Non-Community — PWSID: MT0003617

System Information

PWSIDMT0003617
System NameNATIONAL BISON RANGE
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusNon-Inventory
Owner TypeFederal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedOct 30, 1992
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityCHARLO
ZIP Code59824
AddressUS FISH WILDLIFE SERVICE
OrganizationCOFFMAN, AMY
Phone406-644-2976

Population & Service

Population Served915
Service Connections8

Drinking Water Violations (88)

This water system has 88 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 1, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Oct 1, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Oct 1, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Sep 1, 2021 Sep 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
May 1, 2021 May 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2021 Revised Total Coliform Rule
May 1, 2021 May 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2021 Revised Total Coliform Rule
May 1, 2021 May 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2021 Revised Total Coliform Rule
May 2, 2019 — Revised Total Coliform Rule TT Yes No — — — Resolved Aug 8, 2019 Revised Total Coliform Rule
May 2, 2019 — Revised Total Coliform Rule TT Yes No — — — Resolved Aug 8, 2019 Revised Total Coliform Rule
May 2, 2019 — Revised Total Coliform Rule TT Yes No — — — Resolved Aug 8, 2019 Revised Total Coliform Rule
May 2, 2019 — Revised Total Coliform Rule TT Yes No — — — Resolved Aug 8, 2019 Revised Total Coliform Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Jan 1, 2018 Dec 31, 2018 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2018 Nitrate Rule
Jan 1, 2018 Dec 31, 2018 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2018 Nitrate Rule
Jan 1, 2018 Dec 31, 2018 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2018 Nitrate Rule
Dec 1, 2017 Dec 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2017 Revised Total Coliform Rule
Dec 1, 2017 Dec 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2017 Revised Total Coliform Rule
Dec 1, 2017 Dec 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2017 Revised Total Coliform Rule
Jul 1, 2017 Jul 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2017 Revised Total Coliform Rule
Jul 1, 2017 Jul 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2017 Revised Total Coliform Rule
Jul 1, 2017 Jul 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2017 Revised Total Coliform Rule
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2017 Nitrate Rule
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2017 Nitrate Rule
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2017 Nitrate Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
Jan 1, 2010 Mar 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2010 Total Coliform Rule
Jan 1, 2010 Mar 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2010 Total Coliform Rule
Jan 1, 2010 Mar 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2010 Total Coliform Rule
Jan 1, 2010 Mar 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2010 Total Coliform Rule
Oct 1, 2009 Dec 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2009 Total Coliform Rule
Oct 1, 2009 Dec 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2009 Total Coliform Rule
Oct 1, 2009 Dec 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2009 Total Coliform Rule
Oct 1, 2009 Dec 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2009 Total Coliform Rule
Oct 1, 2007 Dec 31, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2007 Total Coliform Rule
Oct 1, 2007 Dec 31, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2007 Total Coliform Rule
Oct 1, 2007 Dec 31, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2007 Total Coliform Rule
Oct 1, 2005 Dec 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2005 Total Coliform Rule
Oct 1, 2005 Dec 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2005 Total Coliform 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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