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13.4 Calculation of Production Rates for Equipment <br />Using the volumes and areas computed for the various facilities to accomplish reclamation, <br />production rates (also known as "productivities ") for the selected equipment were developed in <br />the spreadsheets, taking into account such factors as characteristics of materials handled (i.e., <br />loose, hard, wet, dense, etc.), haul distance, grade resistance, operator efficiency, equipment <br />utilization rate, capacity of loader buckets and truck beds, etc. There were several references <br />used in this exercise, including the Caterpillar Performance Handbook (33 — 40th editions), <br />actual reclamation time studies in the files of EEE, and engineering judgment by Steffens and <br />EEE. It should be noted that for the equipment selected for the financial warranty estimate, <br />machine productivities predicted by the Caterpillar Performance Handbook do not significantly <br />vary between editions, and changes in cost are governed mostly by price escalation and haul <br />distances. <br />13.5 Calculation of Revegetation Costs <br />Various seed mixtures used at CC &V have been evaluated and improved upon as appropriate <br />during the course of completing and evaluating concurrent reclamation projects at the Cresson <br />Project. As a result, CC &V continues to obtain species best suited for reclaiming of the Cresson <br />Project. It is CC &V's experience that certain species will be replaced with improved native or <br />adapted species capable of supporting the wildlife habitat and livestock grazing post- mining land <br />uses. Revegetation costs are based on actual costs for current seed mixes in use, tree / shrub <br />transplants, and the estimated cost of conventional fertilizer application, seedbed preparation, <br />broadcast seeding, and hydromulching, as well as, estimated costs for helicopter fertilizing and <br />seeding. Revegetation costs also include the costs for liming for the ECOSA in the unlikely event <br />that it is necessary. <br />13.6 Calculation of Demolition Costs <br />The demolition cost for most structures was taken directly from the latest version of R.S. Means <br />Heavy Construction Cost Data for 2010 and 2011, using the dimensions of the structure and <br />simply applying an appropriate cost per unit of volume. This cost estimate does not account for <br />the salvage value or the scrap metal value of materials generated during a large -scale project. It <br />is the experience of Steven Steffens, P. E., and Michael D. Ellis, P.E., co- authors of this <br />reclamation cost estimate, that significant scrap value (particularly steel and copper) exists in <br />large scale mine demolition projects and in most cases, with today's scrap market, demolition <br />and building reclamation costs can be fully recovered by the salvage value generated. As such, <br />the current reclamation cost estimate overstates the liability of CC &V building demolition. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />13 -5 <br />