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oii oiooiooiooooo oio <br />999 <br />DEPARTMENT OF NATURAL RESOURCES <br />David H. Getches, Executive Director <br />~41i ~MC~~ ~Qf~ op I~C~(C~GQfr~ilQ~~~f>~ ~~N/~~0~~1 <br />DAVID C. SHELTO N, Director <br />Richard D. Lamm <br />Governor <br />DATE: August 1, 1986 <br />T0: TBM Bond Release File <br />FROM: John T. Doerfer <br />RE: BOND CALCULATION AT PHASE I BOND RELEASE, FILE NUMBER C-81-048 <br />A request for partial bond release was requested by Trinidad Basin Mining, <br />Inc. on June 7, 1985. Following the Division's adequacy review, a complete <br />request was received on December 12, 1985. The Division performed a bond <br />release inspection on March 5-6, 1986. As all major backfilling and grading <br />work had been completed at the mine site, the Division proceeded to evaluate <br />the request by recalculating the bond amount required to be retained to <br />perform the remaining reclamation work at the mine site. This memo serves to <br />document this evaluation. <br />The attached worksheets identify the remaining reclamation to be completed at <br />the Trinidad Basin Mine by the operator. The major tasks involved included: <br />well sealing; ripping of the haul road to Pits 4 and 5; diversion and <br />colllection ditch removal; pond removal and monitoring; and a set-aside for <br />reseeding which may be expected to occur during the 10-year vegetative <br />establishment period. The specific tasks are identified on the worksheets. <br />The 1986 Caterpillar Blue Book rates were used in arriving at the actual costs <br />required to perform each of these tasks. A11 of the supporting calculations <br />are identified on individual worksheets in determining the total reclamation <br />cost amount summarized on page 5. <br />/iml <br />4272E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />