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Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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ASARCO MISSION UNIT

Arizona — Non-Transient Non-Community — PWSID: AZ0420005

System Information

PWSIDAZ0420005
System NameASARCO MISSION UNIT
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeMixed
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedMar 12, 2026

Location & Contact

StateArizona
CitySAHUARITA
ZIP Code85629
AddressATTN JAMIE EKHOLM
OrganizationASARCO LLC MISSION COMPLEX
Phone520-393-4671

Population & Service

Population Served544
Service Connections8

Drinking Water Violations (120)

This water system has 120 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, 2016 Dec 31, 2016 MR No Yes — 4.0 mg/L — Resolved Dec 31, 2016 —
Oct 1, 2015 Dec 31, 2015 MR No Yes — 4.0 mg/L — Resolved Dec 31, 2015 —
Oct 1, 2015 Oct 31, 2015 MR No No — 5% of samples — Resolved Oct 31, 2015 —
Oct 1, 2015 Oct 31, 2015 MR No No — 5% of samples — Resolved Oct 31, 2015 —
Nov 1, 2014 Nov 30, 2014 MR No No — 5% of samples — Resolved Nov 30, 2014 —
Nov 1, 2014 Nov 30, 2014 MR No No — 5% of samples — Resolved Nov 30, 2014 —
Nov 1, 2012 Nov 30, 2012 MR No No — 5% of samples — Resolved Nov 30, 2012 —
Nov 1, 2012 Nov 30, 2012 MR No No — 5% of samples — Resolved Nov 30, 2012 —
Jun 1, 2012 Jun 30, 2012 MR No No — 5% of samples — Resolved Jun 30, 2012 —
Jun 1, 2012 Jun 30, 2012 MR No No — 5% of samples — Resolved Jun 30, 2012 —
Jul 1, 2011 Jul 31, 2011 MR No No — 5% of samples — Resolved Jul 31, 2011 —
Jul 1, 2011 Jul 31, 2011 MR No No — 5% of samples — Resolved Jul 31, 2011 —
Apr 1, 2011 Apr 30, 2011 MR No No — 5% of samples — Resolved Apr 30, 2011 —
Apr 1, 2011 Apr 30, 2011 MR No No — 5% of samples — Resolved Apr 30, 2011 —
Jun 1, 2008 Jun 30, 2008 MR No No — 5% of samples — Resolved Jun 30, 2008 —
Jun 1, 2008 Jun 30, 2008 MR No No — 5% of samples — Resolved Jun 30, 2008 —
Sep 1, 2006 Sep 30, 2006 MR No No — 5% of samples — Resolved Sep 30, 2006 —
Jul 1, 2006 Sep 30, 2006 MR No Yes — 4.0 mg/L — Resolved Sep 30, 2006 —
Jul 1, 2001 Jul 31, 2001 MR No No — 5% of samples — Resolved Jul 31, 2001 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.05 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.003 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.001 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.7 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.04 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.05 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.007 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.004 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.5 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.4 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.04 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.006 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.02 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — — — Resolved Dec 31, 2009 —
Jan 1, 2001 Dec 31, 2009 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2009 —
Jan 1, 2000 Jan 31, 2000 MR No No — 5% of samples — Resolved Jan 31, 2000 —
Oct 1, 1999 Oct 31, 1999 MR No No — 5% of samples — Resolved Oct 31, 1999 —
May 1, 1999 May 31, 1999 MR No No — 5% of samples — Resolved May 31, 1999 —
Apr 1, 1999 Apr 30, 1999 MR No No — 5% of samples — Resolved Apr 30, 1999 —

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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