ASARCO Mission Complex Mine Tailings Dust

Below is a list of recent documents related to dust emissions from the ASARCO Mission Complex tailings dam. This web page will be updated as information becomes available.

Settlement Agreement Documents:
Pima County Administrator Memo to Board of Supervisors (10-15-2010) ASARCO Statement(10--15-2010) Settlement Agreement (10-15-2010)
PDEQ Open Houses for Preliminary Draft ASARCO Air Quality Permit(9-8-2010)
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)
ASARCO Response to PDEQ Comments on Draft Berm Building Dust Control Plan (4-1-2010)
PDEQ Comments & Follow up Questions After Berm Construction Dust Control Plan Meeting (3-5-2010)
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)
ASARCO Meeting Request to Discuss Proposed Berm Construction Dust Control Plan (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) (12-22-2009)
DEQ Report of ASARCO Inspection(12-22-2009)
PDEQ-issued November 2009 Notice of Violation (NOV) (11-13-2009)
PDEQ-issued October 2009 Opportunity to Correct (OC)(10-21-2009)
University of Arizona Study - Phytostabilization of Mine Tailings in Arid and Semiarid Environments - An Emerging Remediation Technology (03-01-2008)
PDEQ-issued Air Quality Permit (06-16-2003)

For more information or questions contact us at:
520-724-7400