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TABLE 12C <br /> ANNUAL OPERATIONS AND MAINTENANCE COST ESTIMATE SUMMARY <br /> CONCEPTUAL GROUNDWATER EXTRACTION AND AIR STRIPPER SYSTEM <br /> CORRAL HOLLOW SANITARY LANDFILL ENGINEERING FEASIBILITY STUDY <br /> Parameter HP,total hrs/d Unit No. Unit cost Cost per unit Annual Cost <br /> Energy-Groundwater Extraction Systems 36.5 24 kWH/d 653 $0.14 $92 $33,642 <br /> Vapor Phase GAC Replacement - - #/year 1 $5,000 $5,000 $5,000 <br /> Well Redevelopment/Pump Replacement - - #/year 0.5 $8,000 $4,000 $4,000 <br /> Routine O&M - - hrs/week 8 $70 $560 $29,120 <br /> Engineering support - - hrs/month 4 $160 $640 $7,680 <br /> Quarterly Monitoring and Reporting - - per event 4 $1,500 $6,000 $6,000 <br /> Annual Permitting Fees - - per year 1 $15,000 $15,000 $15,000 <br /> Contingencies - - 109 $10,044 <br /> County Administration/Oversight - - 10% $10,044 <br /> Total O&M(per year) $120,530 <br />