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' COLORADO <br /> Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver,CO 80203 <br /> December 11,2014 <br /> Jason McGraw <br /> General Shale Brick, Inc. <br /> 1845 W.Dartmouth Ave. <br /> Denver,CO 80110-1308 <br /> RE: Lariat Mine; DRMS File No.M-1977-251;Adequacy Review No.2-(TR04) <br /> Dear Mr.McGraw, <br /> The Division has identified several other comments and questions that must be addressed prior to the <br /> Division's decision due date. Please be advised that if you are unable to satisfactorily address any <br /> concerns identified in this review before the decision date,it will be your responsibility to request <br /> an extension of the review period. If there are outstanding issues that have not been adequately <br /> addressed prior to the end of the review period,and no extension has been requested,the Division <br /> will deny this Technical Revision. <br /> 1. The Operator is proposing to blend the scrap brick with overburden. A review of the most recent bond <br /> calculation(see attached)shows the Division has bonded for the backfilling of 10,000 cubic yards of <br /> overburden. In addition,it was assumed the overburden would need to be pushed a distance of 50 ft. <br /> Please clarify how much overburden will be stockpiled for use during final reclamation. In addition, <br /> specify the location(s)of the overburden stockpiles. <br /> This concludes the Division's preliminary adequacy review of this Technical Revision. Please remember <br /> that the decision date for this Technical Revision is January 9,2015.As previously mentioned,if you are <br /> unable to provide satisfactory responses to any inadequacies prior to this date,it will be your <br /> responsibility to request an extension of time to allow for continued review of this Technical <br /> Revision.If there are still unresolved issues when the decision date arrives and no extension has been <br /> requested,the Technical Revision will be denied. <br /> If you have any questions,please contact me at(303)866-3567 x8116. <br /> Sincerely, <br /> 1c ael A.Cu gham <br /> Environmental Protection Specialist <br /> Enclosure: Bond Calculation(2007) <br /> CO�o <br /> d0 <br /> 1313 Sherman Street, Room 215,Denver,CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.CO.us <br /> W.Hickentooper,Governor I Mike King, Executive Director I Virginia Brannon,Director 1876 <br />