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EPCOR - LAKE HAVASU

Arizona — Community Water System — PWSID: AZ0408015

System Information

PWSIDAZ0408015
System NameEPCOR - LAKE HAVASU
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

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

Population & Service

Population Served4,788
Service Connections2,248

Drinking Water Violations (74)

This water system has 74 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 — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 2, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2022 Sep 30, 2022 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2022 Arsenic Rule
Jul 1, 2022 Sep 30, 2022 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2022 Arsenic Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Jul 12, 2012 Consumer Confidence Rule
Nov 1, 2008 Nov 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2008 Total Coliform Rule
Nov 1, 2008 Nov 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2008 Total Coliform Rule
Jul 1, 2007 — Consumer Confidence Rule Other No No — — — Resolved Feb 29, 2008 Consumer Confidence Rule
Jan 1, 2007 Dec 31, 2007 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007 Dec 31, 2007 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 — Consumer Confidence Rule Other No No — — — Resolved Aug 5, 2005 Consumer Confidence Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Sep 24, 2004 Consumer Confidence Rule
Jul 1, 2004 Sep 30, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts 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 Mar 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Jul 30, 2002 Consumer Confidence Rule
Jan 1, 2002 Dec 31, 2002 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2002 Nitrate Rule
Oct 1, 2000 Dec 31, 2000 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2000 Volatile Organic Chemicals
Apr 1, 1999 Jun 30, 1999 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 1999 Nitrate Rule
Jan 1, 1999 Dec 31, 1999 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 LASSO MR No Yes — — — Resolved Dec 31, 1999 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 1999 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 1999 Synthetic 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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