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Table 1 <br /> Estimated Costs for Implementation of Phase III IRA <br /> Lincoln Center, Stockton, California <br /> Estimated Estimated <br /> Estimated Unit Cost Total Cost <br /> Item/Description Quantity Unit M M <br /> Groundwater Controls-Field Costs <br /> Equipment Placement and Connection 20%of EC $21,660 <br /> Mechanical (fittings, valves,etc.) 30% of EC $32,490 <br /> Electrical 20% of EC $21,660 <br /> Instrumentation and Controls 30%of EC $32,490 <br /> Direct Capital Cost $636,000 <br /> Indirect Capital Costs for Expansion of GWETS <br /> Contractor Overhead and Profit 10%of DCC $63,600 <br /> Construction Management 20%of DCC $127,200 <br /> Permitting Fees 5%of DCC $31,800 <br /> Contingencies 20% of DCC $127,200 <br /> Indirect Capital Cost $350,000 <br /> Task 4 Total: $986,000 <br /> TOTAL CAPITAL COSTS $1,148,000 <br /> ANNUAL OPERATION AND MAINTENANCE COSTS2 <br /> GWETS Monitoring 12 monthly $1,500 $18,000 <br /> Carbon Changeout 1 per year $4,500 $4,500 <br /> Utilities(electrical, telemetry) I lump sum $24,510 $24,510 <br /> Regular Maintenance I lump sum $10,000 $10,000 <br /> Subtotal $57,010 <br /> Contingencies(20%of Subtotal) $11,402 <br /> TOTAL ANNUAL OPERATIONS AND MAINTENANCE COSTS $68,000 <br /> TOTAL PRESENT WORTH Discount Rate 5% <br /> (Capital and Operations and Maintenance Costs) Years 30 <br /> TOTAL PRESENT WORTH $2,250,000 <br /> Notes: <br /> 1)A total of 10 B-Zone extraction wells are proposed for the Phase III IRA. However, costs for only nine extraction wells are included in <br /> this line item. Costs for the other extraction well are included in the B-zone aquifer test(Item 1). <br /> 2)Operation and maintenance costs for the Phase III IRA include additional costs that would be incurred during connection of the newly <br /> proposed extraction wells to the existing groundwater treatment system. <br /> Costs-Phase-111-IRA-06752/Est Page 2 of 2 4/20/01 <br />