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TABLE 5 939-03.10 <br />CLOSURE AND POSTCLOSURE COSTS (1) <br />CORRAL HOLLOW SANITARY LANDFILL <br />Item Description <br />----------------------------------------------------------------------- <br />Unit <br />Quantity <br />Unit Cost <br />Cost <br />CLOSURE COSTS <br />Ground -Water Monitoring (6) <br />annually <br />Final Cover (2) <br />55,000 <br />Periodic Inspections <br />quarterly <br />4 500 <br />Foundation Layer (1')(3) <br />cy <br />13,700 <br />$11.00 <br />$150,700 <br />Clay Layer (1') <br />cy <br />13,700 <br />11.00 <br />150,700 <br />Vegetative Cover (18") <br />cy <br />20,570 <br />11.00 <br />226,270 <br />Seeding <br />acre <br />8.5 <br />800 <br />6,800 <br />Drainage Facilities (4) <br />Grass Lined V -Ditch <br />if <br />2,120 <br />4.00 <br />8,480 <br />A.C. Lined V -Ditch <br />1f <br />3,720 <br />9.00 <br />33,480 <br />A.C. Flood Protection <br />sf <br />78,408 <br />1.00 <br />78,408 <br />CSP Overside Drain and <br />lump sum <br />1 <br />300 <br />300 <br />Energy Dissipater <br />Earthfills (4) <br />South Earthfill <br />cy <br />25,000 <br />11.00 <br />275,000 <br />West Earthfill <br />cy <br />6,300 <br />11.00 <br />69,300 <br />Closure Monitoring, Super- <br />lump sum <br />1 <br />110,000 <br />110,000 <br />vision and Report (5) <br />Monuments <br />lump sum <br />1 <br />2,000 <br />2,000 <br />Subtotal <br />$1,111,438 <br />Contingency (15X) <br />166,716 <br />TOTAL CLOSURE COSTS <br />$1,278,154 <br />POSTCLOSURE COSTS (Annual) <br />Final Cover and Ditch <br />annually <br />1 $6,200 <br />$6,200 <br />Maintenance <br />Ground -Water Monitoring (6) <br />annually <br />1 55,000 <br />55,000 <br />Periodic Inspections <br />quarterly <br />4 500 <br />2,000 <br />Landfill Gas Monitoring <br />annually <br />1 2,000 <br />2,000 <br />SEE ATTACHED NOTES <br />Subtotal $65,200 <br />Engineering and Contingency (10X) 6,520 <br />ANNUAL POSTCLOSURE COSTS $71,720 <br />411 <br />C��( l�• �ICAI�A�AI� <br />