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EPCOR - WILLOW VALLEY/LAKE CIMARRON

Arizona — Community Water System — PWSID: AZ0408129

System Information

PWSIDAZ0408129
System NameEPCOR - WILLOW VALLEY/LAKE CIMARRON
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1995
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityEL MIRAGE
ZIP Code85335
Address—
OrganizationDIDOMIZIO, TOM
Phone623-445-2431

Population & Service

Population Served596
Service Connections248

Drinking Water Violations (107)

This water system has 107 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 1, 2023 Mar 31, 2023 Chlorite MR No Yes — 1.0 mg/L — Resolved Mar 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2023 Mar 31, 2023 Chlorite MR No Yes — 1.0 mg/L — Resolved Mar 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2022 Dec 31, 2022 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2022 Dec 31, 2022 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Apr 30, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Apr 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Apr 30, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Apr 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Jul 31, 2020 Chlorite MR No Yes — 1.0 mg/L — Resolved Jul 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Jul 31, 2020 Chlorite MR No Yes — 1.0 mg/L — Resolved Jul 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Jul 31, 2020 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Jul 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Jul 31, 2020 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Jul 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jul 24, 2015 Consumer Confidence Rule
Jan 1, 2013 Mar 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Oct 11, 2011 Consumer Confidence Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Oct 4, 2010 Consumer Confidence Rule
Jul 1, 2009 — Consumer Confidence Rule Other No No — — — Resolved Jul 14, 2009 Consumer Confidence Rule
Jul 1, 2008 Sep 30, 2008 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Sep 30, 2008 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2008 Jun 30, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2008 Total Coliform Rule
Apr 1, 2008 Jun 30, 2008 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Mar 31, 2008 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Oct 22, 2007 Consumer Confidence Rule
Nov 1, 2006 Nov 30, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2006 Total Coliform Rule
Oct 1, 2006 Dec 31, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 Sep 30, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Mar 26, 2007 Consumer Confidence Rule
Jan 1, 2006 Mar 31, 2006 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2006 Dec 31, 2006 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2006 Dec 31, 2006 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 — Consumer Confidence Rule Other No No — — — Resolved Dec 12, 2005 Consumer Confidence Rule
Apr 1, 2005 Jun 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Mar 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2004 Dec 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2004 Sep 30, 2004 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2004 Total Coliform Rule
Jul 1, 2004 Jul 31, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2004 Total Coliform 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 Dec 31, 2004 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved May 9, 2003 Consumer Confidence Rule
Jul 1, 2002 Sep 30, 2002 Xylenes, Total MR No Yes — 10 mg/L — Resolved Sep 30, 2002 Volatile Organic Chemicals

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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