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CS MORMON LAKE WATER COMPANY

Missouri — Community Water System — PWSID: AZ0403014

System Information

PWSIDAZ0403014
System NameCS MORMON LAKE WATER COMPANY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateMissouri
CityDES PERES
ZIP Code63131
Address—
OrganizationKRIESS, FRED
Phone602-698-9786

Population & Service

Population Served353
Service Connections138

Drinking Water Violations (82)

This water system has 82 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
Jul 30, 2025 — Public Notice Other No No — — — Resolved Sep 22, 2025 Public Notice Rule and Revised PN Rule
Jul 30, 2025 — Public Notice Other No No — — — Resolved Sep 22, 2025 Public Notice Rule and Revised PN Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Aug 27, 2022 — Public Notice Other No No — — — Resolved Feb 26, 2024 Public Notice Rule and Revised PN Rule
Aug 27, 2022 — Public Notice Other No No — — — Resolved Feb 26, 2024 Public Notice Rule and Revised PN Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Sep 1, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 19, 2018 Revised Total Coliform Rule
Sep 1, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 19, 2018 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2013 Total Coliform Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2013 Total Coliform Rule
Apr 1, 2013 Jun 30, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved May 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Nov 16, 2012 Consumer Confidence Rule
Feb 1, 2012 Feb 29, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 29, 2012 Total Coliform Rule
Feb 1, 2012 Feb 29, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 29, 2012 Total Coliform Rule
Oct 1, 2011 Dec 31, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Aug 8, 2012 Lead and Copper Rule
Jul 1, 2011 Sep 30, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2011 Consumer Confidence Rule
Jan 1, 2011 Dec 31, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2011 Consumer Confidence Rule
Jul 1, 2010 Sep 30, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2011 Consumer Confidence Rule
Jun 1, 2010 Jun 30, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2010 Total Coliform Rule
Jun 1, 2010 Jun 30, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2010 Total Coliform Rule
Jan 1, 2010 Dec 31, 2010 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Dec 31, 2010 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Dec 31, 2010 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Dec 31, 2010 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Mar 31, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2011 Consumer Confidence 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 1, 2009 Dec 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2008 — Lead and Copper Rule MR No No — TT — Resolved Aug 8, 2012 Lead and Copper Rule
Oct 1, 2008 — Lead and Copper Rule MR No No — TT — Resolved Aug 8, 2012 Lead and Copper 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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