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® Climax Mine <br /> Climax Molybdenum <br /> Highway 91 - Fremont Pass <br /> A Freeport-McMoRan Company Climax, CO 80429 <br /> p p y Phone (719)486-7718 <br /> Fax(719)486-2251 <br /> June 6, 2019 TR30 <br /> Mr. Eric Scott #tIECLEIVED <br /> Environmental Protection Specialist ECS\mac 3 W <br /> Division of Reclamation, Mining and Safety JUN iv 2019 <br /> Department of Natural Resources MISON OF w <br /> 1313 Sherman St. Room 215 AMINO A V)E7'Y <br /> Denver, Colorado 80203 � d& /r�/7" jo , <br /> RE: Climax Mine, Permit No. M-1977-493, Technical Revision 30—Additional Spoil/Muck <br /> Disposal Area Location for Mayflower Flood Bypass Tunnel Stage 2 Expansion <br /> Dear Mr. Scott, <br /> Climax Mine is requesting Technical Revision 30 (TR-30)to add an additional spoil/muck disposal <br /> area associated with the Stage 2 expansion of the Mayflower Flood Bypass Tunnel. The tunnel was N <br /> originally approved as TR-21 and the attached map shows the previously approved disposal areas '^o -i <br /> and the new disposal area for TR-30. The new location is needed to provide a shorter, safer route (mow <br /> O <br /> and will reduce the overall air emissions from hauling. The new spoils pile will consist of <br /> approximately 11,500 tons of muck and sediment (native rock)removed during Stage 2 construction <br /> of the Mayflower Flood Bypass Tunnel (TR-29). The footprint of the new pile will be relatively <br /> small with dimensions of approximately 150ft by 150ft and 1 Oft in height. The location for the new <br /> pile will pose no issues to tailing impoundment enlargement or tailing dam stability, and has been <br /> approved by the tailings Engineer of Record as reflected in the attached memo. The TR-21 disposal <br /> areas along the west side and in the southwest corner of Mayflower TSF will remain as options <br /> because there may be need to place material in those locations during future construction phases. <br /> The TR materials (hard copy and electronic files) and the $1,006.00 fee applicable to a 112d <br /> operation are attached to this letter. We appreciate your review of the TR and look forward to your <br /> approval. Please contact Raymond Lazuk at 719-486-7584 or me at 719-486-7525 if you need <br /> additional information. <br /> Sincerely, <br /> Diana Kelts <br /> Chief Environmental Scientist <br /> attachments <br />