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Table 1 <br />Preliminary Closure Cost Estimate <br />Foothill Sanitary Landfill <br />San Joaquin County, California <br />Revised 3/15/2017 <br />Items <br />Quanti <br />Units <br />Unit Cost <br />Extn <br />FINAL COVER SOIL <br />1 Preparation of landfill to receive cover (final grading) <br />674 <br />AC <br />$1,200 <br />$808,800 <br />2 Evapotranspiration Layer (on-site soils) <br />4,893,200 <br />CY <br />$3.46 <br />$16,930,472 <br />3 Vegetation (mulch and hydroseeding) <br />700 <br />AC <br />$3,860 <br />$2,702,000 <br />Final Cover Soil Subtotal <br />$20,441,272 <br />MONITORING SYSTEM <br />4 Perimeter Landfill Gas Monitoring System <br />4 <br />EACH <br />$38,250 <br />$153,000 <br />5 Groundwater Monitoring System <br />2 <br />EACH <br />$37,200 <br />$74,400 <br />6 Leachate Control System <br />1 <br />EACH <br />$50,000 <br />$50,000 <br />Monitoring S stems Subtotal <br />$277,400 <br />LFG CONTROL <br />7 Disabling and Rebuilding Gas System <br />1 <br />LS <br />$687,173 <br />$687,173 <br />8 System expansion at Closure <br />N/A <br />$0 <br />LFG Control System Subtotal <br />$687,173 <br />SITE IMPROVEMENTS <br />9 Drainage Structures <br />32,000 <br />LF <br />$7.27 <br />$232,711 <br />10 Security Measures <br />5,000 <br />LF <br />$17.50 <br />$87,500 <br />11 Survey Monuments <br />4 <br />EACH <br />$6,000 <br />$24,000 <br />12 Dismantle Structures <br />5,500 <br />SF <br />$7.00 <br />$38,500 <br />13 Decommission Environmental Monitoring System <br />None planned for <br />closure <br />$0 <br />$382,711 <br />Other Site Improvement Subtotal <br />Total Construction Cost <br />$21,788,557 <br />PROFESSIONAL SERVICES <br />14 Engineering (Design and Bid Documents) <br />2% <br />of updated construction <br />cost <br />$435,800 <br />15 Topographic and Boundary Survey <br />1 <br />LS <br />1 $10,000 <br />$10,000 <br />16 Construction Quality Assurance <br />5% <br />of total construct <br />cost <br />$1,089,428 <br />Professional Services Subtotal <br />$1,535,228 <br />TOTAL ESTIMATED CLOSURE COST <br />$23,323,784 <br />CONTINGENCY (20%) <br />$4,664,757 <br />TOTAL <br />$27,988,541 <br />Costs are in 2015 dollars. SF = square foot AC = acre <br />CY = cubic yard <br />LS = lump sum <br />Foothill Sanitary Landfill San Joaquin County DPW - Solid Waste <br />\\PWVMPF01\shares\Maint-0ps\OSolidWaste\Engineering\1Foothill\CalRecyde\2017 JTD Revision\2017 March WOR Revs\2017-3-15 PCPCMP Revised 3/15/2017 <br />