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CONGRESS DWID

Arizona — Community Water System — PWSID: AZ0413021

System Information

PWSIDAZ0413021
System NameCONGRESS DWID
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
CityCONGRESS
ZIP Code85332
Address22595 W. HENDERSON ST.
OrganizationNASH, KEITH
Phone928-427-3456

Population & Service

Population Served1,870
Service Connections750

Drinking Water Violations (71)

This water system has 71 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
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2021 Aug 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Sep 30, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Sep 30, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 3, 2017 — Lead and Copper Rule MR No No — TT — Resolved Apr 10, 2017 Lead and Copper Rule
Nov 3, 2017 — Lead and Copper Rule MR No No — TT — Resolved Apr 10, 2017 Lead and Copper Rule
Aug 1, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 26, 2017 Revised Total Coliform Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Dec 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 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
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
Jan 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Dec 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Sep 30, 2012 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2012 Stage 1 Disinfectants and Disinfection Byproducts 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
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Aug 8, 2008 Consumer Confidence Rule
Jul 1, 2007 Sep 30, 2007 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2007 Jun 30, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2007 Total Coliform Rule
Mar 1, 2007 Mar 31, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2007 Total Coliform 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
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
Dec 1, 2006 Dec 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2006 Total Coliform Rule
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Dec 31, 2006 Consumer Confidence 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 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate 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
Jul 1, 2005 — Consumer Confidence Rule Other No No — — — Resolved Dec 31, 2006 Consumer Confidence 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
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 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate 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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