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  • ASARCO Compliance & Enforcement


    No Enforcement Actions to Date




    Settlement Agreement (9-19-2013)
    Notice of Violation (1-25-2013)
    Notice of Violation (1-11-2013)

    2009 and 2010

    Executed Settlement Agreement Amendment (2-20-2014)

    Pima County Administrator Memo to Board of Supervisors (10-15-2010)
    ASARCO Statement (10-15-2010)

    Settlement Agreement (10-15-2010)

    ASARCO Mission Mine Air Quality Issues Update (6-14-2010)
    ASARCO Response to PDEQ Final Compliance Determination (FCD) (5-28-2010)
    ASARCO Response to PDEQ April 2010 Notice of Violation (NOV) (5-18-2010)
    PDEQ-issued April 2010 Notice of Violation (NOV) (4-27-2010)
    PDEQ Final Compliance Determination for November 2009 NOV & December 2009 NOV (4-27-2010)
    EPA-Clean Air Act Compliance Status Information Request (4-13-2010)
    PDEQ Receipt Acknowledgement of ASARCO Response to NOVs (3-5-2010)
    PDEQ Update Memo to Pima County Administrator (3-4-2010)
    UA Particulate Analysis of Samples in Vicinity of ASARCO Mission Mine (3-2-2010)
    ASARCO Tailings - UA Atmospheric Sciences/Superfund Program Response to EPA Region 9 Analysis (2-24-2010)

    ASARCO Tailings Dam # 8 Sample Analysis Results from EPA laboratory (2-12-2010)
    PDEQ Response to ASARCO regarding OC (2-9-2010)

    ASARCO Response to Notices of Violation (NOV) (1-27-2010)

    PDEQ Site Report of Sampling at ASARCO Tailings Dam #8 (1-25-2010)

    PDEQ Denial of Extension Request (1-15-2010)

    ASARCO Request for 30-Day Extension to Respond to NOV (1-8-2010)

    Pima County Administrator Memo to Board of Supervisors (1-5-2010)

    ASARCO Response to OC (12-23-2009)

    PDEQ-issued December 2009 Notice of Violation (NOV) (12-31-2009)

    DEQ Report of ASARCO Inspection (12-22-2009)

    PDEQ-issued November 2009 Notice of Violation (NOV) (12-23-2009)

    PDEQ-issued October 2009 Opportunity to Correct (OC) (12-4-2009)


    U of A Study - (3-1-2008) Phytostabilization of Mine Tailings in Arid and Semiarid Environments - An Emerging Remediation Technology