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TOLSTOY

South Dakota — Community Water System — PWSID: SD4600331

System Information

PWSIDSD4600331
System NameTOLSTOY
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityTOLSTOY
ZIP Code57475
AddressPO BOX 11
OrganizationTOLSTOY
Phone—

Population & Service

Population Served36
Service Connections44

Drinking Water Violations (179)

This water system has 179 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
Mar 9, 2024 — Public Notice Other No No — — — Resolved Apr 9, 2024 Public Notice Rule and Revised PN Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Jun 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts 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
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
Jul 1, 2022 Jul 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 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 Jul 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2022 Revised Total Coliform Rule
Jul 1, 2022 Jul 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 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
Apr 1, 2022 Apr 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2022 Revised Total Coliform Rule
Apr 1, 2022 Apr 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2022 Revised Total Coliform Rule
Apr 1, 2022 Apr 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2022 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Aug 10, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2016 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Aug 10, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 30, 2009 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 3, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 30, 2009 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 3, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 30, 2009 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved May 3, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Jul 31, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2004 Total Coliform Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2004 Consumer Confidence Rule
Jul 1, 2004 Jul 31, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2004 Total Coliform Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jul 28, 2004 Consumer Confidence Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Aug 12, 2002 Consumer Confidence Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Aug 12, 2002 Consumer Confidence Rule
Nov 1, 2000 Nov 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2000 Total Coliform Rule
Nov 1, 2000 Nov 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2000 Total Coliform Rule
Nov 1, 2000 Nov 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2000 Total Coliform Rule
Oct 1, 2000 Oct 31, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2000 Total Coliform Rule
Oct 1, 2000 Oct 31, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2000 Total Coliform Rule
Oct 1, 2000 Oct 31, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Jun 1, 1999 Jun 30, 1999 Coliform (TCR) MR No Yes — 5% of samples — Archived Jun 30, 1999 Total Coliform Rule
Jun 1, 1999 Jun 30, 1999 Coliform (TCR) MR No Yes — 5% of samples — Archived Jun 30, 1999 Total Coliform Rule
Aug 1, 1998 Aug 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 1998 Total Coliform Rule
Aug 1, 1998 Aug 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 1998 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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