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TOLLESON CITY OF

Arizona — Community Water System — PWSID: AZ0407101

System Information

PWSIDAZ0407101
System NameTOLLESON CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityTOLLESON
ZIP Code85353
Address9055 W VAN BUREN
OrganizationLARSON, KEVIN
Phone623-474-4969

Population & Service

Population Served9,300
Service Connections2,040

Drinking Water Violations (117)

This water system has 117 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
Sep 18, 2025 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jul 1, 2025 Jul 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2025 Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2025 Surface Water Treatment Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Jul 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2022 Surface Water Treatment Rule
Mar 1, 2018 May 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved May 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2018 May 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved May 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jul 9, 2013 Consumer Confidence Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved May 16, 2012 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
May 1, 2008 May 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2008 Total Coliform Rule
Mar 1, 2008 Mar 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2008 Total Coliform Rule
Jan 1, 2008 Jan 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2008 Total Coliform Rule
Apr 1, 2007 Jun 30, 2007 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007 Jun 30, 2007 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007 Mar 31, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007 Mar 31, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Oct 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2006 Total Coliform Rule
Mar 1, 2006 Mar 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2006 Total Coliform 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 Oct 31, 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
Mar 1, 2005 Mar 31, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2005 Total Coliform 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
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
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Oct 31, 2005 Consumer Confidence 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 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2004 Volatile Organic Chemicals
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
Oct 1, 2003 Dec 31, 2003 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2003 Volatile Organic Chemicals
Jul 1, 2003 Sep 30, 2003 Toluene MR No Yes — 1 mg/L — Resolved Sep 30, 2003 Volatile Organic Chemicals
Jul 1, 2003 — Consumer Confidence Rule Other No No — — — Resolved Oct 31, 2005 Consumer Confidence Rule
Jan 1, 2003 Mar 31, 2003 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2003 Volatile Organic Chemicals
Oct 1, 2002 Dec 31, 2002 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Oct 31, 2005 Consumer Confidence Rule
Jul 1, 2002 Sep 30, 2002 Toluene MR No Yes — 1 mg/L — Resolved Sep 30, 2002 Volatile Organic Chemicals
Apr 1, 2002 Jun 30, 2002 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2002 Volatile Organic Chemicals
Jan 1, 2002 Mar 31, 2002 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2002 Volatile Organic Chemicals
Oct 1, 2001 Dec 31, 2001 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
Jul 1, 2001 Sep 30, 2001 Toluene MR No Yes — 1 mg/L — Resolved Sep 30, 2001 Volatile Organic Chemicals
Apr 1, 2001 Jun 30, 2001 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2001 Volatile Organic Chemicals
Apr 1, 2001 Jun 30, 2001 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2001 Volatile Organic Chemicals
Jan 1, 2001 Mar 31, 2001 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2001 Volatile Organic Chemicals
Oct 1, 2000 Dec 31, 2000 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2000 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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