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<br />2.05.4(2)(b) <br />Soil From Ridges <br />The method used to move spoil ridges into the adjacent <br />pits is to push it with a tractor dozer. The maximum push distance is <br />360 feet, four pits. The average push distance is 180 feet. From <br />edition 15 of the Caterpillar performance handbook, it is estimated that <br />a D-9 can push 500 cubic yards per hour with a 180' push distance. <br />Assuming a D-9 costs $125 per hour, the cost per cubic yard to move the <br />spoil ridges is $0.25. <br />Spoil From Highwall Reduction <br />Assume the necessary spoil can be ripped from adjacent <br />pits. Rip with a D-9 dozer at,a cost of $165.00 per hour. Use $0.33 per <br />CY to push the material into the adjacent pit. From edition 15 of the <br />Caterpillar performance handbook, it is estimated that a D-9 can rip 250 <br />cubic yards per hour. The cost per cubic yard for highwall reduction is <br />therefore $0.66 + $0.33.= $0.99. <br />Pond B Topsoil <br />The method used to move the topsoil in the Pond B area <br />is to push it back over the reclaimed sediment pond. The push distance <br />is 300 feet. From edition 15 of the Caterpillar performance handbook, <br />it is estimated that a D-9 can push 375 cubic yards per hour with a 300' <br />push distance. Assuming a D-9 costs $150 per hour, the cost per cubic <br />yard is $0.40. <br />Reclaim Sediment Ponds <br />The work required to reclaim the sediment ponds is to <br />simply push the embankment back into the pond and regrade the area with <br />a track type dozer. A total of five ponds and five collection ditches <br />will be reclaimed. It is estimated that each pond and associated <br />collection ditch can be reclaimed in eight hours with a track type dozer. <br />The cost to reclaim each pond is estimated to be 8 Hrs. X $150 = $1200. <br />Reclaim Haul Road <br />The following section provides an estimate of the cost <br />to reclaim the haul roads associated with mining areas No. 1 and No. 2. <br />Technical revision number 4 deleted the requirement for this reclamation <br />work. However, this information will be maintained in the permit for <br />continuity purposes. <br />Approximately 9180 feet of haul road and 5800 feet of <br />access road will be reclaimed. The operation necessary to reclaim the <br />road involves pushing material into the borrow ditches and leveling the <br />road in preparation for topsoil placement. The typical haul road section <br />shown on Drawing No. 118 indicates that the volume of material to move <br />to reclaim the road is minimal. The majority of work required will be <br />leveling the road for topsoil placement. It is estimated that a track <br />type dozer can reclaim 1000' of road per day. Total cost to reclaim the <br />haul road is 120 Hrs. X $150.00 = $18,000. The placement of topsoil on <br />the haul road is provided for in the topsoil category above. <br />• <br />2.05-18 September 1994