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Equipment and operator performance factors were based on generally published and accepted criteria • <br />(see individual worksheetsl. <br />Operator wages were all based on information supplied by CDMC. <br />Reclamation Time Frame. A reasonable time frame for a job of this magnitude is estimated at <br />approximately 400 hours for backfilling and grading, and 1,000 hours for topsoiling. This is based on <br />three D11Ns working two shifts per day and four 63~s working one shift per day. Some of the <br />topsoiling can overlap the backfilling and grading; thereTore, total project time is estimated at six <br />months. <br />Indirect Costs <br />The following is an estimate of indirect costs associated with the reclamation of the Yoast Mine. <br />Mobilization and Demobilization Costs <br />Mobilization and demobilization costs were based on mobilizing the major pieces of equipment. The • <br />guidelines set forth in the OSM Reclamation Bond Handbook place a value of mobilization and <br />demobilization at one to five percent of the direct costs. SCC used the five percent. <br />Engineering Redesign Fee <br />The reclamation plan as submitted is based on a planned life-of-mine operation. If mining <br />should cease betore the planned date, some projects may need to be re-engineered or field engineered. <br />To account for these costs, Graph 1, OSMRE Bond Handbook was used the estimate these fees. This <br />was estimated at 4.9 percent of the direct costs. <br />Contractor's Profit and Overhead <br />Profit and overhead for the contractor was estimated using Graph 2, OSMRE Bond Handbook. This <br />was estimated at 7.3 percent of the direct costs. <br />• <br />7 Revised 2/01 <br />