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13 LFG Flare station
<br />Subtotal, LFG Field $4,179,275
<br />ea 1 $500,000
<br />Total $4,679,275
<br />LFG System construction occurs throughout the life of the landfill, and is not a component of the Closure cost.
<br />(1) Includes budget to install additional wells to control isolated LFG emission problems.
<br />(2) Assumes no future development near the landfill
<br />(3) Costs in 2004 dollars
<br />LFG Component of Closure Cost Estimate
<br />2010 Cost`
<br />Repair of above -ground field components 30% of orig cost $88,950 $102,000
<br />Repair of below -ground field components 5% of orig cost $194,139 $223,000
<br />Closure Costs $283,089 $325,000
<br />" (based on DRRR inflation adjustment 2004 to 2010 = 1.147)
<br />OASan .loaqun Coun1y1136605 Foothill Closure PC CostsTH CIO-PostClo Rev 07262010.xis, LFG Const
<br />Foothill Sanitary Landfill
<br />Preliminary PCPM Plan Page 3 of 4
<br />Public Works/Solid Waste
<br />County of San Joaquin - Revised July 28, 2010
<br />LFG System Cost Estimate
<br />Foothill Landfill
<br />Landfill Acreage 673
<br />No.
<br />Item
<br />Unit Cost Unit
<br />Qty
<br />Extn
<br />Note
<br />1
<br />Vertical wells 35 contingency wells
<br />$65 LF
<br />3500
<br />$227,500
<br />For special gas issues
<br />2
<br />Horizontal wells 52 wells in two layers
<br />$25 LF
<br />70720
<br />$1,768,000
<br />Primary gas collection
<br />3
<br />Buried 12" gas, 1" air & 2" water HDPE
<br />$34 LF
<br />22080
<br />$750,720
<br />Looped perimeter header
<br />4
<br />Sumps with header sample ports
<br />$12,000 Each
<br />20
<br />$240,000
<br />In the header system
<br />5
<br />Perimeter monitoring wells
<br />$6,000 Each
<br />25
<br />$150,000
<br />1000 foot spacing (2)
<br />6
<br />Misc items and contingency (1)
<br />$746,555 LS
<br />1
<br />$746,555
<br />Subtotal, buried field components $3,882,775
<br />7
<br />Header Valves and well connections
<br />$1,314 Each
<br />74
<br />$97,200
<br />8
<br />Above -ground Lateral pipe - 4" HDPE
<br />$5 LF
<br />2000
<br />$10,000
<br />9
<br />Above -ground Subheader pipe 6" & 8" HDPE
<br />$13 LF
<br />2000
<br />$26,000
<br />10
<br />Above -ground Header pipe 12" HDPE
<br />$22 LF
<br />0
<br />$0
<br />11
<br />Condensate Return Drains
<br />$2,000 Each
<br />52
<br />$104,000
<br />12 Misc items and contingency (1)
<br />$59,300 LS
<br />1
<br />$59,300
<br />Subtotal, above
<br />-ground field components
<br />$296,500
<br />13 LFG Flare station
<br />Subtotal, LFG Field $4,179,275
<br />ea 1 $500,000
<br />Total $4,679,275
<br />LFG System construction occurs throughout the life of the landfill, and is not a component of the Closure cost.
<br />(1) Includes budget to install additional wells to control isolated LFG emission problems.
<br />(2) Assumes no future development near the landfill
<br />(3) Costs in 2004 dollars
<br />LFG Component of Closure Cost Estimate
<br />2010 Cost`
<br />Repair of above -ground field components 30% of orig cost $88,950 $102,000
<br />Repair of below -ground field components 5% of orig cost $194,139 $223,000
<br />Closure Costs $283,089 $325,000
<br />" (based on DRRR inflation adjustment 2004 to 2010 = 1.147)
<br />OASan .loaqun Coun1y1136605 Foothill Closure PC CostsTH CIO-PostClo Rev 07262010.xis, LFG Const
<br />Foothill Sanitary Landfill
<br />Preliminary PCPM Plan Page 3 of 4
<br />Public Works/Solid Waste
<br />County of San Joaquin - Revised July 28, 2010
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