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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 />Office of <br />Mined Land Reclamation <br />INTEROFFICE <br />MEMORANDUM <br />TO: Brock Bowles <br />FROM: Jim Star <br />SUBJECT: Elk Creek Mine TR -71 Cost Estimate <br />DATE: 12 July 2011 <br />STATE OF COLORADO <br />Attached is the reclamation cost estimate for the Elk Creek Mine's Technical Revision 71 <br />— relocation and addition of gob vent boreholes. The estimate is eight tasks (a summary <br />sheet and tasks 311 -317) and represents an increase in liability of $42,266.00. This <br />estimate is based on drilling eight new gob vent boreholes, the construction of 12 new <br />drill pads and the construction of 1,820 feet of new light -use roads. Based on my review <br />of the materials provided, I do not have any adequacy questions. <br />Please let me know if you have any questions regarding this estimate or need any <br />additional information. <br />cc: Sandy Brown w /out Attachments <br />COLORADO <br />D I V I S I O N O F <br />RECLAMATION <br />MINING <br />— &— <br />SAFETY <br />John W. Hickenlooper <br />Governor <br />Mike King <br />Executive Director <br />Loretta E. Pineda <br />Director <br />Office of <br />Denver • Grand Junction • Durango Active and Inactive Mines <br />