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Colorado River Regional Water System

Arizona — Community Water System — PWSID: 090400051

System Information

PWSID090400051
System NameColorado River Regional Water System
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityParker
ZIP Code85344
Address26600 Mohave Road
OrganizationCRIT Council
Phone9286699211

Population & Service

Population Served8,490
Service Connections1,860

Drinking Water Violations (132)

This water system has 132 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, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 22, 2025 Revised Total Coliform Rule
Mar 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 22, 2025 Revised Total Coliform Rule
Mar 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 22, 2025 Revised Total Coliform Rule
Oct 29, 2023 — Lead and Copper Rule MR No No — TT — Resolved Mar 19, 2024 Lead and Copper Rule
Jan 1, 2021 Dec 31, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2021 Dec 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Dec 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 — Revised Total Coliform Rule TT Yes No — — — Resolved Jun 11, 2020 Revised Total Coliform Rule
Jan 1, 2017 Dec 31, 2017 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2017 Nitrate Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MCL Yes No — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2016 Revised Total Coliform Rule
Jan 1, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Oct 1, 2015 Oct 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2015 Total Coliform Rule
Oct 1, 2015 — Public Notice Other No No — — — Resolved Jun 27, 2016 Public Notice Rule and Revised PN Rule
Jun 1, 2015 Jun 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Jun 1, 2015 — Public Notice Other No No — — — Resolved Jun 27, 2016 Public Notice Rule and Revised PN Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
May 1, 2015 — Public Notice Other No No — — — Resolved Jun 27, 2016 Public Notice Rule and Revised PN Rule
May 1, 2014 May 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 2014 Total Coliform Rule
May 1, 2014 May 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2014 Total Coliform Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Oct 22, 2014 Ground Water Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 1, 2014 Ground Water Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Oct 22, 2014 Ground Water Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Nov 16, 2015 Ground Water Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 26, 2016 Ground Water Rule
Mar 31, 2014 — Groundwater Rule TT Yes No — — — Resolved Nov 16, 2015 Ground Water Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved Sep 26, 2017 Lead and Copper Rule
Jan 1, 2012 Mar 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 17, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Mar 31, 2012 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 17, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2011 Jun 30, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2011 Jun 30, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2011 Jun 30, 2011 TTHM MCL Yes No .1805 MG/L 0.080 mg/L — Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 TTHM MCL Yes No .11092 MG/L 0.080 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2010 Dec 31, 2010 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 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
Aug 1, 2008 Aug 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2008 Total Coliform Rule
Oct 1, 2007 Oct 31, 2007 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2007 Total Coliform Rule
Jul 1, 2006 — Consumer Confidence Rule Other No No — — — Resolved Jul 11, 2007 Consumer Confidence Rule
Jul 1, 2005 — Consumer Confidence Rule Other No No — — — Resolved Jan 20, 2009 Consumer Confidence Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jan 20, 2009 Consumer Confidence Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jan 20, 2009 Consumer Confidence Rule
Jan 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Dec 31, 2004 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2003 Total Coliform Rule
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2003 Total Coliform Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Sep 14, 2004 Consumer Confidence Rule
Feb 1, 2001 Feb 28, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2001 Total Coliform Rule
Feb 1, 2001 Feb 28, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2001 Total Coliform 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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