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11 Supplemental LFG Emission Control System Cost Estimate for Preliminary Postclosure Maintenance Cost Estimate The LFG Emission control and Monitoring System estimate was prepared in 2005, and included maintenance/ replacement, operation, and administration costs: 2004 Cost 2009 Cost (1) The Maintenance/Replacement/Operation Cost $282,000 $318.700 (1) Factor 1.13 for COMB inflation; See Unit Cost Basis table Postclosure Costs for LFG System* North County Landfill LFG Field Cost $1,765,188 Flare Station Cost $400,000 Maintenance/replacement by equipment life 5% of LFG field cost $88,259 per year 10% of Flare Station cost $40,000 per year $128,259 per year Operation Contract for two existing landfills Area of landfills Unit cost Area of Landfill at closure Pro -rated operations cost Source Test Surface emission monitoring Laboratory Analysis Electricity Performance 40" vac, 10" pressure Design Flow 2000 SCFM Permitting and Admin $40,000 per year (cost basis) (1) 155 acres (cost basis) (2) $258 per acre per year 185 acres $47,742 per year $18,000 $22,200 $10,000 $97,942 Per Year 1 Blowers operating (ea) 50 hp motor (ea) 37.5 kW max rated 30 kW normal load $0.15 /kW hr 8760 hours per year $39,420 per year 200 hours per year $80 per hour $16,000 per year Total annual cost $281,621 per year call it $282,000 Source: San Joaquin County; Rev March 16, 2005, in 2004 costs (1) Costs include maintenance of flare station equipment and minor field repairs (2) Actual O&M Costs are extrapolated to estimate O&M Costs on a per acre basis PCMP for NCRCSL E-4 O:ISan Joaquin CounVNCRCSL111804O PCPMMFinal ReporAPCPMP_Rev_Jan_2010. Doc Department of Public Works/Solid Waste County of San Joaquin - January 7, 2010