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US ARMY YPG LAAF SYSTEM

Arizona — Non-Transient Non-Community — PWSID: AZ0414361

System Information

PWSIDAZ0414361
System NameUS ARMY YPG LAAF SYSTEM
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusNon-Inventory
Owner TypeFederal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityYUMA PROVING GROUND
ZIP Code85365
Address—
OrganizationUS ARMY GARRISON COMMANDER YUMA
Phone928-328-2977

Population & Service

Population Served150
Service Connections12

Drinking Water Violations (159)

This water system has 159 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
Jul 1, 2011 Sep 30, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 1, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2011 Jun 30, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2011 Arsenic Rule
Jan 1, 2011 Mar 31, 2011 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2011 Arsenic Rule
Jan 1, 2011 Mar 31, 2011 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2011 Arsenic Rule
Jan 1, 2011 Mar 31, 2011 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Mar 31, 2011 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2011 Arsenic Rule
Oct 1, 2010 Dec 31, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2010 Arsenic Rule
Oct 1, 2010 Dec 31, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2010 Dec 31, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2010 Arsenic Rule
Oct 1, 2010 — Lead and Copper Rule MR No No — TT — Resolved Aug 1, 2011 Lead and Copper Rule
Jul 1, 2010 Sep 30, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2010 Arsenic 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
Jul 1, 2010 Sep 30, 2010 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2010 Arsenic Rule
Jul 1, 2010 Sep 30, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2010 Arsenic Rule
Jul 1, 2010 Sep 30, 2010 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2010 Arsenic Rule
Apr 1, 2010 Jun 30, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2010 Jun 30, 2010 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2010 Arsenic Rule
Apr 1, 2010 Jun 30, 2010 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2010 Arsenic Rule
Apr 1, 2010 Jun 30, 2010 Arsenic MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Jun 30, 2010 Arsenic Rule
Apr 1, 2010 Jun 30, 2010 Arsenic MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Jun 30, 2010 Arsenic Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2010 Arsenic Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2010 Arsenic Rule
Jan 1, 2010 Mar 31, 2010 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2010 Arsenic 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
Oct 1, 2009 Dec 31, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2009 Arsenic Rule
Oct 1, 2009 Dec 31, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2009 Arsenic Rule
Oct 1, 2009 Dec 31, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2009 Arsenic Rule
Oct 1, 2009 Dec 31, 2009 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2009 Arsenic Rule
Jul 1, 2009 Sep 30, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 Arsenic Rule
Jul 1, 2009 Sep 30, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 Arsenic Rule
Apr 1, 2009 Jun 30, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 Arsenic Rule
Apr 1, 2009 Jun 30, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 Arsenic Rule
Jan 1, 2009 Mar 31, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 Arsenic Rule
Jan 1, 2009 Mar 31, 2009 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 Arsenic Rule
Oct 1, 2008 Dec 31, 2008 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 Arsenic Rule
Oct 1, 2008 Dec 31, 2008 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 Arsenic Rule
Jul 1, 2008 Sep 30, 2008 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 Arsenic Rule
Jul 1, 2008 Sep 30, 2008 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 Arsenic Rule
Jul 1, 2008 Sep 30, 2008 Arsenic MCL Yes No .015 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 Arsenic Rule
Apr 1, 2008 Jun 30, 2008 Arsenic MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 Arsenic Rule
Apr 1, 2008 Jun 30, 2008 Arsenic MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 Arsenic Rule
Apr 1, 2008 Jun 30, 2008 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2008 Arsenic Rule
Apr 1, 2008 Jun 30, 2008 Chlorine MR No Yes — 4.0 mg/L — Archived Jun 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Mar 31, 2008 Arsenic MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 Arsenic Rule
Jan 1, 2008 Mar 31, 2008 Arsenic MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 Arsenic 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

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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