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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />DIVISION O F <br />RECLAMATION <br />MINING <br />-&- <br />SAF ETY <br />G ~ Bill Ritter, )r. <br />J Governor <br />February 14, 2008 ~' Harris D. Sherman <br />Executive Director <br />Catherine A. Clark Ronald W. Cattany <br />Climax Molybdenum Company ~ Division Director <br />Natural Resource Trustee <br />P.O. Box 68 <br />Empire, CO 80438 <br />RE: Technical Approach for Evaluatin>? Seismic Stability of Tenmile and Mayflower Tailing Storage <br />Facilities, Climax Mine, Permit No. M-1977-493 ~ <br />Dear Ms. Clark: <br />The Division of Reclamation, Mining, and Safety has reviewed your letter and attachments dated January <br />22, 2008 containing a proposed technical approach and rationale for evaluating the seismic stability of the <br />existing Tenmile and Mayflower tailing storage facilities considering the scheduled resumption of <br />production at the Climax Mine. The Division hereby approves the proposed technical approach for these <br />important evaluations. <br />If you have any questions, please contact me at 303-866-4063. <br />Sincerely, <br />/ ~~~ <br />~~ -.. <br />Allen C. Sorenson <br />Reclamation Specialist <br />cc: Carl Mount, DBMS, via email <br />c:~acs filesU~ty Documents 4-19-06 thru~climax seismic evaluation approach.doc <br />Office of <br />Office of <br />Mined Land Reclamation Denver Grand )unction Durango Active and Inactive Mines <br />