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MONTANA CITY SCHOOL DIST 27

Montana — Non-Transient Non-Community — PWSID: MT0001393

System Information

PWSIDMT0001393
System NameMONTANA CITY SCHOOL DIST 27
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolYes
WholesalerNo
First ReportedMar 5, 1980
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityCLANCY
ZIP Code59634
Address11 MCCLELLAN CREEK RD
OrganizationKLOKER, TONY
Phone406-442-6779

Population & Service

Population Served534
Service Connections1

Drinking Water Violations (65)

This water system has 65 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
Jul 1, 2025 Jul 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2025 Revised Total Coliform Rule
Jul 1, 2025 Jul 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2025 Revised Total Coliform Rule
Jul 1, 2025 Jul 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2025 Revised Total Coliform Rule
Jan 1, 2022 Jan 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2022 Revised Total Coliform Rule
Jan 1, 2022 Jan 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2022 Revised Total Coliform Rule
Jan 1, 2022 Jan 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2022 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Jan 1, 2021 Dec 31, 2021 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2021 Dec 31, 2021 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2021 Dec 31, 2021 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2021 Dec 31, 2021 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2021 Nitrate Rule
Sep 1, 2018 Sep 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 25, 2018 Revised Total Coliform Rule
Sep 1, 2018 Sep 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 25, 2018 Revised Total Coliform Rule
Sep 1, 2018 Sep 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 25, 2018 Revised Total Coliform Rule
Oct 1, 2016 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Sep 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Sep 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Sep 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Sep 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Jan 1, 2012 Jan 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2012 Total Coliform Rule
Jan 1, 2012 Jan 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2012 Total Coliform Rule
Jan 1, 2012 Jan 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2012 Total Coliform Rule
Jan 1, 2012 Jan 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2012 Total Coliform Rule
Apr 1, 2009 Jun 30, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2009 Arsenic Rule
Apr 1, 2009 Jun 30, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2009 Arsenic Rule
Apr 1, 2009 Jun 30, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2009 Arsenic Rule
Jan 1, 2008 Dec 31, 2008 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2008 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2008 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2008 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2008 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2008 Synthetic Organic Chemicals
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
Jan 1, 2006 Dec 31, 2006 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2006 Synthetic Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2006 Synthetic Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2006 Synthetic Organic Chemicals
Oct 1, 2005 Oct 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2005 Total Coliform Rule
Oct 1, 2005 Oct 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2005 Total Coliform Rule
Oct 1, 2005 Oct 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2005 Total Coliform Rule
Oct 1, 2005 Oct 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2005 Total Coliform Rule
Oct 1, 2004 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
Oct 1, 2004 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
Oct 1, 2004 — Lead and Copper Rule MR No No — TT — Resolved Jun 5, 2008 Lead and Copper Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2002 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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