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~5 <br />Clos-ure/Post-Closure Cost Estimate <br />Orange County MSW Landfill <br />Orange County, North Carolina <br />DAA #RD0592-00 <br />South Side of Eubanks Road <br />(includes Phase 1, 2, 3, and 4) Preparation Date: August 23, 2011 <br />Closure Cosh - X998 Dollars <br />Note: Costs adjusted at end of table for inflation. <br />I. Native Soil for Cap Cushion <br />a. Area to be capped 25.9 acres <br />b. Depth of native soil for slope and fill 18 inches <br />c. Quantity of native soil needed 62,678 cubic yards <br />d. Excavation unit cost $1.36 per cubic yard <br />e. Placement and spreading unit cost $0.92 per cubic yard <br />f. Compaction unit cost $0.16 per cubic yard <br />g. Total native soil unit cost $2.44 per cubic yard <br />h. Delivery cost $0.00 <br />i. Percent compaction 25% <br />j. Total Native Soil Cost $191,167.90 <br />II. Topsoil <br />a. Area to be capped 25.9 acres <br />b. Depth of topsoil needed 6 inches <br />c. Quantity of topsoil needed 20;893 cubic yards <br />d. Purchase unit cost $0.00 per cubic yard <br />e. Delivery unit cost $0.00 per cubic yard <br />f. Spreading unit cost $2.28 <br />g. Compaction unit cost $0.00 <br />h. Total topsoil unit cost $2.28 <br />i. Percent compaction 25% <br />j. Total Topsoil Cost X59, 544.10 <br />III. Drainage <br />a. Area to be capped 25.9 acres <br />b. Depth of sand or gravel needed 0 inches <br />c. Quantity of sand or gravel needed 0 cubic yards <br />d. Purchase unit cost for sand $5.50 per cubic yard <br />e. Purchase unit cost for gravel $3.85 per cubic yard <br />South Side -Page 9 08/23/2011 <br />