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11 E 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 2008 Cost (1) The Maintenance/Replacement/Operation Cost $282,000 1 0 (1) Factor 1.13 for 3% per year inflation for 4 years Postclosure Costs for LFG System North County Landfill Rev March 16, 2005* LFG Field Cost Flare Station Cost Maintenance/replacement by equipment life 5% of LFG field cost 10% of Flare Station cost Operation Contract for two landfills Area of landfills Unit cost Area of Landfill at closure Pro -rated cost Source Test Surface emission monitoring Laboratory Analysis Electricity Performance 40" vac, 10" pressure Design Flow 2000 SCFM Permitting and Admin Total annual cost * Source: County $1,765,188 $400,000 $88,259 per year $40,000 per year $128,259 per year $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 $281,621 per year call it $282,000 (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 (3) Costs in 2004 dollars PCMP for NCRCSL EA Department of Public Works/Solid Waste O. ISan Joaquin CountylNCRCSL 11180401PCPMPIFinal ReportIPCPMP D R6. Doc County of San Joaquin - Rev. 02, July 70, 2009