SIERRITA MOUNTAIN WATER COOP

Arizona — Community Water System — PWSID: AZ0410208

System Information

PWSIDAZ0410208
System NameSIERRITA MOUNTAIN WATER COOP
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedSep 27, 1990
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityTUCSON
ZIP Code86754
AddressPO BOX 85160
OrganizationSIERRA MT WATER CO-OP
Phone520-624-1460

Population & Service

Population Served258
Service Connections67

Drinking Water Violations (206)

This water system has 206 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
May 1, 2025 May 31, 2025 Chlorine MR No Yes 4.0 mg/L Archived May 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Consumer Confidence Rule Other No No Resolved Oct 6, 2023 Consumer Confidence Rule
Jul 1, 2023 Consumer Confidence Rule Other No No Resolved Oct 6, 2023 Consumer Confidence Rule
Jan 1, 2023 Lead and Copper Rule MR No No TT Resolved Feb 15, 2023 Lead and Copper Rule
Jan 1, 2023 Lead and Copper Rule MR No No TT Resolved Feb 15, 2023 Lead and Copper 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
Oct 1, 2019 Lead and Copper Rule MR No No TT Resolved Oct 25, 2019 Lead and Copper Rule
Oct 1, 2019 Lead and Copper Rule MR No No TT Resolved Oct 25, 2019 Lead and Copper Rule
Oct 1, 2016 Consumer Confidence Rule Other No No Resolved Mar 15, 2017 Consumer Confidence Rule
Oct 1, 2016 Consumer Confidence Rule Other No No Resolved Mar 15, 2017 Consumer Confidence Rule
Jul 1, 2016 Consumer Confidence Rule Other No No Resolved Mar 15, 2017 Consumer Confidence Rule
Jul 1, 2016 Consumer Confidence Rule Other No No Resolved Mar 15, 2017 Consumer Confidence 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
Oct 1, 2009 Dec 31, 2009 Chlorine MR No Yes 4.0 mg/L Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2009 Dec 31, 2009 Chlorine MR No Yes 4.0 mg/L Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009 Sep 30, 2009 Chlorine MR No Yes 4.0 mg/L Resolved Sep 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2008 Dec 31, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MCL Yes No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2008 Total Coliform Rule
Jul 1, 2008 Sep 30, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2008 Total Coliform Rule
Jul 1, 2008 Sep 30, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2008 Jun 30, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Mar 31, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Mar 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Mar 31, 2008 Chlorine MR No Yes 4.0 mg/L Resolved Mar 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Dec 31, 2008 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Dec 31, 2008 TTHM MR No Yes 0.080 mg/L Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Dec 31, 2008 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Dec 31, 2008 TTHM MR No Yes 0.080 mg/L Resolved Dec 31, 2008 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 Lead and Copper Rule MR No No TT Resolved Dec 31, 2007 Lead and Copper Rule
Jul 1, 2005 Consumer Confidence Rule Other No No Resolved May 25, 2006 Consumer Confidence Rule
Jul 1, 2004 Lead and Copper Rule MR No No TT Resolved Jul 28, 2008 Lead and Copper Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2003 Total Coliform Rule
Aug 1, 2003 Aug 31, 2003 Coliform (TCR) MR No No 5% of samples Resolved Aug 31, 2003 Total Coliform Rule
Jul 1, 2003 Jul 31, 2003 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2003 Total Coliform Rule
Jul 1, 2003 Consumer Confidence Rule Other No No Resolved Jul 1, 2004 Consumer Confidence Rule
Jul 1, 2003 Jul 31, 2003 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 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
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No No 5% of samples Resolved Feb 28, 2003 Total Coliform Rule
Nov 1, 2002 Nov 30, 2002 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 2002 Total Coliform Rule
Nov 1, 2002 Nov 30, 2002 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 2002 Total Coliform Rule
Oct 1, 2002 Oct 31, 2002 Coliform (TCR) MR No No 5% of samples Resolved Oct 31, 2002 Total Coliform Rule
Oct 1, 2002 Oct 31, 2002 Coliform (TCR) MR No No 5% of samples Resolved Oct 31, 2002 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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