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POTOMAC SCHOOL DIST 11

Montana — Non-Transient Non-Community — PWSID: MT0000855

System Information

PWSIDMT0000855
System NamePOTOMAC SCHOOL DIST 11
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 5, 1980
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityBONNER
ZIP Code59803
Address29750 PATOMAC RD
OrganizationSALLEE, EMILY
Phone406-044-5581

Population & Service

Population Served160
Service Connections4

Drinking Water Violations (138)

This water system has 138 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
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2017 Sep 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2017 Revised Total Coliform Rule
Sep 1, 2017 Sep 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2017 Revised Total Coliform Rule
Sep 1, 2017 Sep 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 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
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
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Feb 25, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Feb 25, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Feb 25, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013 Sep 30, 2013 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Sep 30, 2013 Arsenic Rule
Jul 1, 2013 Sep 30, 2013 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Sep 30, 2013 Arsenic Rule
Jul 1, 2013 Sep 30, 2013 Arsenic MCL Yes No .015 MG/L 0.010 mg/L — Resolved Sep 30, 2013 Arsenic Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2012 May 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2012 Total Coliform Rule
May 1, 2012 May 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2012 Total Coliform Rule
May 1, 2012 May 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2012 Total Coliform Rule
Apr 1, 2012 Jun 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2012 Jun 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2012 Jun 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2010 Total Coliform Rule
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2010 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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