DARBY TOWN OF

Montana — Community Water System — PWSID: MT0000195

System Information

PWSIDMT0000195
System NameDARBY TOWN OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedMar 26, 2026

Location & Contact

StateMontana
CityDARBY
ZIP Code59829
AddressPO BOX 37
OrganizationMCKINNEY, NANCY
Phone406-821-3753

Population & Service

Population Served850
Service Connections494

Drinking Water Violations (640)

This water system has 640 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
Aug 6, 2024 TT Yes No TT Resolved Jan 8, 2026
Aug 6, 2024 TT Yes No TT Resolved Jan 8, 2026
Aug 6, 2024 TT Yes No TT Resolved Jan 8, 2026
May 1, 2023 May 31, 2023 MON No Yes Resolved May 22, 2023
May 1, 2023 May 31, 2023 MON No Yes Resolved May 22, 2023
May 1, 2023 May 31, 2023 MON No Yes Resolved May 22, 2023
Jul 1, 2021 Other No No Resolved Jul 26, 2021
Jul 1, 2021 Other No No Resolved Jul 26, 2021
Jul 1, 2017 Other No No Resolved Jul 27, 2017
Jul 1, 2017 Other No No Resolved Jul 27, 2017
Jul 1, 2010 Sep 30, 2010 MR No Yes 5 pCi/L Resolved Sep 30, 2010
Jul 1, 2010 Sep 30, 2010 MR No Yes 15 pCi/L Resolved Sep 30, 2010
Jul 1, 2010 Sep 30, 2010 MR No Yes 5 pCi/L Resolved Sep 30, 2010
Jul 1, 2010 Sep 30, 2010 MR No Yes 15 pCi/L Resolved Sep 30, 2010
Jul 1, 2010 Sep 30, 2010 MR No Yes 15 pCi/L Resolved Sep 30, 2010
Jul 1, 2010 Sep 30, 2010 MR No Yes 5 pCi/L Resolved Sep 30, 2010
Jul 1, 2006 Dec 31, 2006 MR No No TT Resolved Dec 31, 2006
Jul 1, 2006 Dec 31, 2006 MR No No TT Resolved Dec 31, 2006
Jan 1, 2006 Jun 30, 2006 MR No No TT Resolved Jun 30, 2006
Jan 1, 2006 Jun 30, 2006 MR No No TT Resolved Jun 30, 2006
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Oct 1, 2005 MR No No TT Resolved Feb 9, 2007
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Sep 1, 2005 Sep 30, 2005 MCL Yes No 5% of samples Resolved Sep 30, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Aug 1, 2005 Aug 31, 2005 MCL Yes No 5% of samples Resolved Aug 31, 2005
Jan 1, 2005 Jun 30, 2005 MR No No TT Resolved Jun 30, 2005

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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