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  • March

    In March 2013, ASARCO LLC submitted a Section 404 permit application to the Corps to discharge fill materials into approximately 130 acres and indirectly impact an additional 4 acres of waters of the U.S., to construct a Tailings Storage Facility near Ray Mine, an existing open pit copper mine in Pinal County. The comment period for the Final Environmental Impact Statement will end on March 14.

    404: Clean water and so much more

    The U.S. Army Corps of Engineers Los Angeles District held a public meeting to present results of the Draft Environmental Impact Statement for the proposed Ray Mine Tailings Storage Facility Feb. 24.