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MONTROSE

South Dakota — Community Water System — PWSID: SD4600217

System Information

PWSIDSD4600217
System NameMONTROSE
System TypeCommunity Water System
Water SourceGround Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityMONTROSE
ZIP Code57048
Address100 W MAIN ST
OrganizationMONTROSE
Phone6053635065

Population & Service

Population Served468
Service Connections170

Drinking Water Violations (289)

This water system has 289 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
Apr 1, 2022 Jun 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2018 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jul 13, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2018 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jul 13, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 1, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 1, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Sep 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2014 Total Coliform Rule
Sep 1, 2014 Sep 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2014 Total Coliform Rule
Sep 1, 2014 Sep 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2014 Total Coliform Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2013 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 18, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2013 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 18, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 13, 2011 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Apr 21, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 13, 2011 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Apr 21, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Jan 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2011 Total Coliform Rule
Jan 1, 2011 Jan 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2011 Total Coliform Rule
Jan 1, 2011 Jan 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2011 Total Coliform Rule
Jan 1, 2011 Mar 31, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 4, 2005 — Public Notice Other No No — — — Resolved Jun 11, 2007 Public Notice Rule and Revised PN Rule
Nov 1, 2004 Nov 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2004 Total Coliform Rule
Nov 1, 2004 Nov 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2004 Total Coliform Rule
Nov 1, 2004 Nov 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2004 Total Coliform Rule
Nov 1, 2004 Nov 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2004 Total Coliform Rule
Jul 1, 2004 Sep 30, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 1, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Sep 30, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 1, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 7, 2004 — Public Notice Other No No — — — Resolved Jun 11, 2007 Public Notice Rule and Revised PN Rule
Apr 1, 2004 Jun 30, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2004 Jun 30, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 30, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Mar 30, 2004 Nitrate Rule
Jan 1, 2004 Mar 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Dec 14, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Dec 14, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Dec 14, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 30, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Mar 30, 2004 Nitrate Rule
Jan 1, 2004 Mar 30, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Mar 30, 2004 Nitrate Rule
Jan 1, 2004 Mar 30, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Mar 30, 2004 Nitrate Rule
Oct 4, 2003 — Public Notice Other No No — — — Resolved Jun 11, 2007 Public Notice Rule and Revised PN Rule
Aug 3, 2003 — Public Notice Other No No — — — Resolved Jun 11, 2007 Public Notice Rule and Revised PN Rule
Apr 1, 2003 Jun 30, 2003 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2003 Nitrate Rule
Apr 1, 2003 Jun 30, 2003 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2003 Nitrate Rule
Oct 8, 2002 — Public Notice Other No No — — — Resolved Jun 15, 2006 Public Notice Rule and Revised PN Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 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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