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MORRISTOWN

South Dakota — Community Water System — PWSID: SD4600218

System Information

PWSIDSD4600218
System NameMORRISTOWN
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityMORRISTOWN
ZIP Code57645
AddressPO BOX 34
OrganizationMORRISTOWN
Phone—

Population & Service

Population Served47
Service Connections35

Drinking Water Violations (343)

This water system has 343 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, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
May 21, 2024 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Oct 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 21, 2024 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Oct 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Feb 1, 2023 Feb 28, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2023 Revised Total Coliform Rule
Feb 1, 2023 Feb 28, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2023 Revised Total Coliform Rule
Jan 1, 2023 Mar 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Mar 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2022 Sep 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2022 Revised Total Coliform Rule
Sep 1, 2022 Sep 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2022 Revised Total Coliform Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 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
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 1, 2021 Revised Total Coliform Rule
Apr 1, 2021 Jun 30, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 1, 2021 Revised Total Coliform Rule
Apr 1, 2021 Apr 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 1, 2021 Revised Total Coliform Rule
Feb 1, 2017 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 16, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2017 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 16, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Dec 15, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Dec 15, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2013 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 17, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2013 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 17, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Feb 1, 2012 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 17, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2012 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 17, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2011 Sep 30, 2011 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2011 Total Coliform Rule
Sep 1, 2011 Sep 30, 2011 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2011 Total Coliform Rule
Sep 1, 2011 Sep 30, 2011 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2011 Total Coliform Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water Rule
Dec 25, 2010 — E. COLI MR No Yes — — — Resolved Sep 26, 2011 Ground Water 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
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MCL Yes 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
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2010 Total Coliform Rule
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2010 Total Coliform Rule
Nov 1, 2010 Nov 30, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 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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