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~~~°~,Q STATE OF COLORADO <br />Roy Romer, Govei <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />FRED R. BANTA, Dlreetor <br />February 3, 1988 <br />Mr. Michael Leidich <br />Robinson Brick Company <br />P.O. Box 5243 <br />1845 West Dartmouth <br />Denver, Colorado 80217 <br />Re: Hogback Mine Technical Revision, Fite No. M-80-245 ~ <br />tdr. Leidich: <br />The Division has completed its review of the proposed Technical Revision to <br />the Hogback Mine mining and reclamation plan. During our review, we conducted <br />a reclamation cost estimate given the proposed mining and reclamation plans. <br />As a basis for the reclamation cost estimate, the following references were <br />used: <br />Caterpillar Performance Handbook - Edition I7 <br />Rental Rate Blue Book for Construction Equipment <br />Arkansas Valley Seed Co. Buyer List; April, 1987 <br />The Division has estimated that the cost of performing the anticipated <br />reclamation work on site is approximately 554,025.00. Therefore, it is our <br />opinion that the required financial warranty for the Hogback Mine should be <br />set at 554,000.00. If you would like a copy of our reclamation cost estimate, <br />please contact me. <br />The remainder of the proposed mining and reclamation plans do not appear to <br />present any major problems. <br />As stated in our letter of January 21, 1988, a decision to approve or deny the <br />revision must be made on February 19, 1988. If you care to discuss the <br />proposed financial warranty for the Hogback Mine or if I can be of any <br />assistance, please contact me prior to February 18, 1988. <br />Sincerely, <br />Steven G. Renner <br />liydrrologist <br />SGR/bdc <br />5049E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567 <br />