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1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />April 9,2015 <br />GeorgePatterson <br />Energy Fuels Coal, Inc. <br />P.O. Box 459 <br />Florence,CO81226 <br />Re:Southfield Mine(Permit No. C-1981-014) <br />Technical Revision No. 45(TR-45)Preliminary Adequacy Review <br />Dear Mr.Patterson: <br />The Division has reviewedEFCI’s application for technical revisionNo. 45for the Southfield <br />Mine.EFCI is proposing to revise the diversity standard to bring this reclamation success <br />standard into compliance with Rule 4.15.8(2), (5) and (6).EFCI is proposing to revise the <br />diversity standard for warm season grass species on the reclaimed mine area reclamation and on <br />the reclaimed load out. EFCI is also proposing to revise the woody plant density standard on the <br />reclaimed portal area. The Division has the following adequacy concerns that require additional <br />information: <br />1.Please use consistent acreage values when referring tothe approved reference areas. <br />On page 2.04.10-6 (approved TR-39, revised date December 3, 2013)EFCI reported <br />acreage values forthe respective reference areas. <br />Weighted % <br />Grassland (Refuse Pile reference area) 2.80 acres52.93% <br />PPJ (Plot B-Portal area)0.42 acres7.94% <br />New Portal Area Reference area (PJ)2.07 acres39.13% <br />Total reference area acres5.29acres <br />Page 4 of the TR45 application letter provided the following acreage values for the <br />respective reference areas: <br />1313 Sherman Street, Room 215, Denver, CO 80203P 303.866.3567 F 303.832.8106http://mining.state.co.us <br />John W. Hickenlooper, Governor | Mike King, Executive Director | Virginia Brannon, Director <br />