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10). This section details the determination of these values, and is divided into two parts: the first <br />describes the general assumptions and methods used for all categories; and the second details <br />each categories' site specific information and actual cost per year calculations. <br />A. ASSUDIFTIONS 3z METHODS <br />The following describes the general assumptions and methods used to calculate the Yearly <br />Cost incurred by each Reclamation Category: <br />Yearly Cost =Unit Cost x Reclamation Required <br />This method was used to calculate costs for each year of the permit term, except in the <br />following cases: <br />(1) As outlined in Edna's operation plan, the work required to remove the sediment ponds, <br />facility areas, and powerlines, and to implement the West Ridge Hydrologic Plan, will <br />remain constant over the 1992-1996 permit term. Consequently, the yearly cost of <br />reclamation for these categories need be calculated only once as the value will remain <br />constant; and <br />(2) To avoid reiteration, the West Ridge Hydrologic Plan's bond (COMLRD Approved <br />Dec. 1991), was not calculated in this study, though it is included in the overall bond <br />amount. Details concerning this calculation may be referenced in Edna's Permit <br />Application C-80-001, Volume 12a-4.6. <br />Unit Cost <br />1. Assumption <br />All unit costs are based on those of private contractors performing all work required <br />under the supervision of the MLRD; thus the following generalizations were used: <br />• Equipment rental is based on 4.4 weeks/month and 40 hrs/week <br />• Operating/Rental costs are per the Rental Rate Blue Book <br />• Operators wages include all benefits <br />• Ideal Production is from the Cat Handbook <br />• Adjusted Production is calculated from Cat Handbook Efficiency Factors <br />2. Method <br />Unit Cost = (Labor Rate (RL) + Equipment Rate(Rg)I x Production Rate, Actual (P): <br />P =determined by the Cat Handbook Specifications and Site Specific <br />Production Requirements; <br />RL =Number workers xWage/Worker; and <br />RE _ £. (Rental Rate + Operation Rate ]. <br />Reclamation Required <br />December 12, 1991 <br />