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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 OF <br />RECLAMATION <br />MINING <br />SAFETY <br />INTEROFFICE Go Ritter'''. <br />Governor <br />MEMORANDUM Harris D. Sherman <br /> Executive Director <br /> <br />TO: Joe Dudash Ronald W. Cattany <br />Division Director <br /> Natural Resource Trustee <br />FROM: Jim Star _ <br />SUBJECT: Bowie No. 2 Mine's MR-104 Cost Estimate <br />DATE: 1 June 2009 <br />Attached is the reclamation cost estimate for the Bowie No. 2 Mine's Minor Revision <br />104 - relocation of GVB-9B and associated drill pad and road spur. The estimate is <br />seven tasks (a summary sheet and tasks 351-356) and represents an increase in liability <br />of $22,486.00. This estimate is $12,936.00 more than the estimate provided by BRL (of <br />$9,550.00). <br />The Division's estimate is more than the estimate provided by BRL because the <br />Division's hourly costs to regrade the pads and roads and replace topsoil using a dozer is <br />more expensive than that used by BRL ($207.53/hour vs. $90.00/hour). Additionally, the <br />Division estimates the task time on an individual task basis while BRL uses a "canned" <br />number of hours per acre. <br />There was no change to the estimate for changing the plugging and sealing of GVB-9B <br />since this was included in TR-52. <br />Please let me know if you have any questions or need any additional information. <br />cc: Sandy Brown w/out attachments <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction 9 Duranao Artiva and Inartivc Minac