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Esko Public School, ISD #99

Minnesota — Non-Transient Non-Community — PWSID: MN5090090

System Information

PWSIDMN5090090
System NameEsko Public School, ISD #99
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region05
Serves SchoolYes
WholesalerNo
First ReportedJan 23, 1981
Last ReportedNov 25, 2025

Location & Contact

StateMinnesota
CityEsko
ZIP Code55733
AddressPO Box 10
OrganizationIndependent School District No. 99
Phone—

Population & Service

Population Served1,200
Service Connections2

Drinking Water Violations (65)

This water system has 65 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, 2016 Jun 30, 2016 Chlorine MR No No — 4.0 mg/L — Resolved May 10, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Chlorine MR No No — 4.0 mg/L — Resolved May 10, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Apr 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2016 Revised Total Coliform Rule
Apr 1, 2016 Apr 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2016 Revised Total Coliform Rule
Apr 1, 2016 Jun 30, 2016 Chlorine MR No No — 4.0 mg/L — Resolved May 10, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jun 1, 2014 Jun 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2014 Total Coliform Rule
Jun 1, 2014 Jun 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2014 Total Coliform Rule
Apr 1, 2014 Jun 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Jun 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Apr 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2014 Total Coliform Rule
Apr 1, 2014 Apr 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2014 Total Coliform Rule
Apr 1, 2014 Apr 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2014 Total Coliform Rule
Apr 1, 2014 Apr 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2014 Total Coliform Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Sep 11, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Sep 11, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Sep 11, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Sep 11, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Jan 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 11, 2013 Total Coliform Rule
Jan 1, 2014 Jan 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 11, 2013 Total Coliform Rule
Jan 1, 2014 Jan 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 11, 2013 Total Coliform Rule
Jul 1, 2013 Sep 30, 2013 Chlorine MR No No — 4.0 mg/L — Archived Sep 30, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013 Jul 31, 2013 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 2013 Total Coliform Rule
Jul 1, 2013 Sep 30, 2013 Chlorine MR No No — 4.0 mg/L — Archived Sep 30, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts 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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