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0 <br /> Foothill Sanitary Landfill Preliminary Closure Plan �b <br /> Revision #1 May 6, 1994y g <br /> 20 ACRE LINED MODULE <br /> 20 Acre Module Entire Site <br /> Foundation layer = 32, 267 c.y. 2, 132 ,827 <br /> Clay cover = 64,533 c.y. 2, 003 , 759 <br /> Vegetative Cover = 32 , 267 c.y. 1, 066,413 <br /> Totals 129, 067 c.y. 5, 202, 999 <br /> * Unit Costs for Placement <br /> Foundation and Vegetative laver cover. Assuming excavation <br /> and placement at 120 c.y. /hr. , and using labor costs at <br /> $23 .58 plus scraper operation cost of $60. 10, the following <br /> unit cost calculation applies: <br /> Unit cost ($83 . 68/hr) /120 c.y. /hr. _ $0.70/c.y. <br /> Clay cover -- 1 - 2 ft. thick. The excavation and placement <br /> unit cost will be the same as for the Foundation and <br /> Vegetative Layers. However, the clay will require <br /> additional compaction to 95% of maximum density and will <br /> require an additional unit expense as shown below. <br /> Table for additional compaction cost for clay cover <br /> EQUIPMENT EQUIP. ®PER LABOR PRODUCTION COST/C.Y. <br /> $ $ C.Y. /HR $ <br /> Compactor 14 . 68 23 .58 49 0.78 <br /> Water Truck 5.38 23 .58 108 0.27 <br /> Grader 14 .38 23 .58 866 0. 04 <br /> Supervision 30. 00 650 0. 05 <br /> COMPACTION UNIT COST $1.14/C.Y. <br /> 20 <br />