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US ARMY FORT IRWIN

California — Community Water System — PWSID: CA3610705

System Information

PWSIDCA3610705
System NameUS ARMY FORT IRWIN
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeFederal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedDec 15, 1992
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityFORT IRWIN
ZIP Code92301
AddressPO Box 105097
OrganizationSISNEROS, EVETTE
Phone760-380-3737

Population & Service

Population Served15,701
Service Connections3,315

Drinking Water Violations (140)

This water system has 140 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
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Apr 30, 2019 Lead and Copper Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Apr 30, 2019 Lead and Copper Rule
Apr 1, 2016 Jun 30, 2016 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2016 Arsenic Rule
Apr 1, 2016 Jun 30, 2016 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2016 Arsenic Rule
Apr 1, 2016 Jun 30, 2016 Fluoride MCL Yes No 8.2 MG/L 4.0 mg/L 2 Resolved Jun 30, 2016 Inorganic Chemicals
Apr 1, 2016 Jun 30, 2016 Fluoride MCL Yes No 8.2 MG/L 4.0 mg/L 2 Resolved Jun 30, 2016 Inorganic Chemicals
Jan 1, 2016 Mar 31, 2016 Fluoride MCL Yes No 8.2 MG/L 4.0 mg/L 2 Resolved Mar 31, 2016 Inorganic Chemicals
Jan 1, 2016 Mar 31, 2016 Fluoride MCL Yes No 8.2 MG/L 4.0 mg/L 2 Resolved Mar 31, 2016 Inorganic Chemicals
Jan 1, 2016 Mar 31, 2016 Arsenic MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Mar 31, 2016 Arsenic Rule
Jan 1, 2016 Mar 31, 2016 Arsenic MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Mar 31, 2016 Arsenic Rule
Oct 1, 2015 Dec 31, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Dec 31, 2015 Arsenic Rule
Oct 1, 2015 Dec 31, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Dec 31, 2015 Arsenic Rule
Oct 1, 2015 Dec 31, 2015 Fluoride MCL Yes No 9.1 MG/L 4.0 mg/L 2 Resolved Dec 31, 2015 Inorganic Chemicals
Oct 1, 2015 Dec 31, 2015 Fluoride MCL Yes No 9.1 MG/L 4.0 mg/L 2 Resolved Dec 31, 2015 Inorganic Chemicals
Jul 1, 2015 Sep 30, 2015 Fluoride MCL Yes No 9.2 MG/L 4.0 mg/L 2 Resolved Sep 30, 2015 Inorganic Chemicals
Jul 1, 2015 Sep 30, 2015 Fluoride MCL Yes No 9.2 MG/L 4.0 mg/L 2 Resolved Sep 30, 2015 Inorganic Chemicals
Jul 1, 2015 Sep 30, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Sep 30, 2015 Arsenic Rule
Jul 1, 2015 Sep 30, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Sep 30, 2015 Arsenic Rule
Apr 1, 2015 Jun 30, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 Arsenic Rule
Apr 1, 2015 Jun 30, 2015 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 Arsenic Rule
Apr 1, 2015 Jun 30, 2015 Fluoride MCL Yes No 9.1 MG/L 4.0 mg/L 2 Resolved Jun 30, 2015 Inorganic Chemicals
Apr 1, 2015 Jun 30, 2015 Fluoride MCL Yes No 9.1 MG/L 4.0 mg/L 2 Resolved Jun 30, 2015 Inorganic Chemicals
Jan 1, 2015 Mar 31, 2015 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 Arsenic Rule
Jan 1, 2015 Mar 31, 2015 Fluoride MCL Yes No 8.6 MG/L 4.0 mg/L 2 Resolved Mar 31, 2015 Inorganic Chemicals
Jan 1, 2015 Mar 31, 2015 Fluoride MCL Yes No 8.6 MG/L 4.0 mg/L 2 Resolved Mar 31, 2015 Inorganic Chemicals
Jan 1, 2015 Mar 31, 2015 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 Arsenic Rule
Oct 1, 2014 Dec 31, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 Arsenic Rule
Oct 1, 2014 Dec 31, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 Arsenic Rule
Oct 1, 2014 Dec 31, 2014 Fluoride MCL Yes No 8.8 MG/L 4.0 mg/L 2 Resolved Dec 31, 2014 Inorganic Chemicals
Oct 1, 2014 Dec 31, 2014 Fluoride MCL Yes No 8.8 MG/L 4.0 mg/L 2 Resolved Dec 31, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Fluoride MCL Yes No 10.2 MG/L 4.0 mg/L 2 Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Fluoride MCL Yes No 10.2 MG/L 4.0 mg/L 2 Resolved Sep 30, 2014 Inorganic Chemicals
Jul 1, 2014 Sep 30, 2014 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 Arsenic Rule
Jul 1, 2014 Sep 30, 2014 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 Arsenic Rule
Apr 1, 2014 Jun 30, 2014 Fluoride MCL Yes No 12.2 MG/L 4.0 mg/L 2 Resolved Jun 30, 2014 Inorganic Chemicals
Apr 1, 2014 Jun 30, 2014 Fluoride MCL Yes No 12.2 MG/L 4.0 mg/L 2 Resolved Jun 30, 2014 Inorganic Chemicals
Apr 1, 2014 Jun 30, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 Arsenic Rule
Apr 1, 2014 Jun 30, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 Arsenic Rule
Jan 1, 2014 Mar 31, 2014 Fluoride MCL Yes No 12.3 MG/L 4.0 mg/L 2 Resolved Mar 31, 2014 Inorganic Chemicals
Jan 1, 2014 Mar 31, 2014 Fluoride MCL Yes No 12.3 MG/L 4.0 mg/L 2 Resolved Mar 31, 2014 Inorganic Chemicals
Jan 1, 2014 Mar 31, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 Arsenic Rule
Jan 1, 2014 Mar 31, 2014 Arsenic MCL Yes No .032 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 Arsenic Rule
Oct 1, 2013 Dec 31, 2013 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 Arsenic Rule
Oct 1, 2013 Dec 31, 2013 Arsenic MCL Yes No .033 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 Arsenic Rule
Oct 1, 2013 Dec 31, 2013 Fluoride MCL Yes No 12.2 MG/L 4.0 mg/L 2 Resolved Dec 31, 2013 Inorganic Chemicals
Oct 1, 2013 Dec 31, 2013 Fluoride MCL Yes No 12.2 MG/L 4.0 mg/L 2 Resolved Dec 31, 2013 Inorganic Chemicals
Jul 1, 2013 Sep 30, 2013 Arsenic MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 Arsenic Rule
Jul 1, 2013 Sep 30, 2013 Arsenic MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 Arsenic Rule
Jul 1, 2013 Sep 30, 2013 Fluoride MCL Yes No 11.7 MG/L 4.0 mg/L 2 Resolved Sep 30, 2013 Inorganic Chemicals
Jul 1, 2013 Sep 30, 2013 Fluoride MCL Yes No 11.7 MG/L 4.0 mg/L 2 Resolved Sep 30, 2013 Inorganic Chemicals

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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