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STATE O� COLOR�I� <br /> DIVISION OF MINERALS AND GEOLOGY <br /> Department of Natural Resources <br /> 1313 Sherman St., Room 215 <br /> Denver,Colorado 80203 D I v I S 1 0 :. <br /> Phone:(303)866-3567 M IN E RA L S <br /> FAX:(303)832-8106 & <br /> GEOLOGY <br /> RECLAMATION <br /> MINING-SAFETY <br /> July 7D1999 <br /> Bill Owens <br /> r. Roger Day Governor <br /> Greg E.Walther <br /> AmerAlia, Inc. Executive Director <br /> P.O. Box 1330 Michael B.Long <br /> Rifle, CO 81650 Division Director <br /> R �oM-99-051 <br /> Rock School Lease Experimental Nahcolite Mine Project, <br /> Dear Mr. Day: <br /> Please find enclosed the preliminary reclamation cost estimate for the Rock School Lease Project. The cost <br /> estimate is the basis for the amount of bond that will be required for permit issuance. Certain components <br /> of the estimate will be updated once AmerAlia provides responses to the adequacy issues listed in the <br /> Division's letter dated June 18, 1999. For example, costs will be included for the disposal of pond liners <br /> and residues based on AmerAlia's responses. Costs for tree planting will also be included as appropriate. <br /> One of the most significant reclamation costs included in the estimate is for demolition of surface structures. <br /> Unit costs for building demolition are based on building'volume, and the Division's estimate is based on <br /> assumed heights for the buildings. If AmerAlia provides the actual heights proposed for each building, the <br /> cost estimate may be refined. <br /> If you have any questions,please contact me. <br /> SincErely, <br /> j.. <br /> Allen C. Sorenson <br /> Reclamation Specialist <br /> enclosure(s) <br /> cc: Jack Clark (W enclosures) <br /> c:\windows\personal\ameralia three.doc <br /> i <br />