Desert Diamond Why

Arizona — Non-Transient Non-Community — PWSID: 090400234

System Information

PWSID090400234
System NameDesert Diamond Why
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 30, 2002
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityTucson
ZIP Code85734
AddressP.O. Box 22230
OrganizationTohono O'odham Gaming Enterprise
Phone5202947777

Population & Service

Population Served362
Service Connections88

Drinking Water Violations (45)

This water system has 45 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 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes 0.080 mg/L Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes 0.080 mg/L Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 Sep 30, 2010 Arsenic MCL Yes No .0128 MG/L 0.010 mg/L Resolved Sep 30, 2010 Arsenic Rule
Apr 1, 2010 Jun 30, 2010 Arsenic MCL Yes No .0128 MG/L 0.010 mg/L Resolved Jun 30, 2010 Arsenic Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No .01598 MG/L 0.010 mg/L Resolved Mar 31, 2010 Arsenic Rule
Oct 1, 2009 Dec 31, 2009 Arsenic MCL Yes No .01772 MG/L 0.010 mg/L Resolved Dec 31, 2009 Arsenic Rule
Sep 1, 2009 Sep 30, 2009 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2009 Total Coliform Rule
Aug 1, 2009 Aug 31, 2009 Coliform (TCR) MR No No 5% of samples Resolved Aug 31, 2009 Total Coliform Rule
Jul 1, 2009 Sep 30, 2009 Arsenic MCL Yes No .0415 MG/L 0.010 mg/L Resolved Sep 30, 2009 Arsenic Rule
Jul 1, 2009 Sep 30, 2009 Arsenic MCL Yes No .01617 MG/L 0.010 mg/L Resolved Sep 30, 2009 Arsenic Rule
Oct 1, 2007 Dec 31, 2007 Arsenic MCL Yes No .28557 MG/L 0.010 mg/L Resolved Dec 31, 2007 Arsenic Rule
Apr 1, 2007 Jun 30, 2007 Arsenic MCL Yes No .223 MG/L 0.010 mg/L Resolved Jun 30, 2007 Arsenic Rule
Oct 1, 2006 Dec 31, 2006 Arsenic MCL Yes No .26 MG/L 0.010 mg/L Resolved Dec 31, 2006 Arsenic Rule
Jun 1, 2006 Jun 30, 2006 Coliform (TCR) MR No No 5% of samples Resolved Jun 30, 2006 Total Coliform Rule
Jan 1, 2005 Dec 31, 2005 Arsenic MCL Yes No .32 MG/L 0.010 mg/L Resolved Dec 31, 2005 Arsenic Rule
Oct 1, 2004 Oct 31, 2004 Coliform (TCR) MR No No 5% of samples Resolved Oct 31, 2004 Total Coliform Rule
Apr 1, 2004 Apr 30, 2004 Coliform (TCR) MR No No 5% of samples Resolved Apr 30, 2004 Total Coliform Rule
Jun 1, 2001 Jun 30, 2001 Coliform (TCR) MR No No 5% of samples Resolved Jun 30, 2001 Total Coliform Rule
Oct 1, 2000 Oct 31, 2000 Coliform (TCR) MR No No 5% of samples Resolved Oct 31, 2000 Total Coliform Rule
Apr 1, 2000 Jun 30, 2000 Coliform (TCR) MR No No 5% of samples Resolved Jun 30, 2000 Total Coliform Rule
Jan 1, 2000 Mar 31, 2000 Coliform (TCR) MR No No 5% of samples Resolved Mar 31, 2000 Total Coliform Rule
No No
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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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