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2905 West Benjamin Holt Drive, Stockton, California March 16, 1994 <br /> Chevron U.S.A. Products Company Page 15 <br /> i <br /> 5.4 Soil Vapor Extraction <br /> Costs associated with the implementation of soil vapor extraction include the following: <br /> Capital Costs <br /> Labor, consulting and laboratory fees for soil vapor extraction pilot testing to analyze the <br /> site-specific feasibility of soil vapor extraction <br /> Consulting and permit fees for the design of a soil vapor extraction system <br /> Subcontractor, consulting, permit, equipment and materials fees for the installation, <br /> testing and start-up of a'soil vapor extraction and vapor abatement system. <br /> • Subcontractor, consulting and laboratory fees for confirmation borings and additional <br /> assessment to analyze the effectiveness of remediation <br /> Operational Costs <br /> r ■ Labor, consulting and laboratory fees for vapor monitoring and sampling to monitor the <br /> effectiveness of the system <br /> .0 Operation, maintenance,'and utility fees for the,soil vapor extraction and vapor <br /> abatement system <br /> Labor, consulting and laboratory fees for groundwater monitoring and sampling until <br /> closure of the project <br /> Capital and operational costs associated with this alternative are the second highest of the four <br /> alternatives. Capital costs would be high due to the fees associated with purchase and installation of the <br /> soil vapor extraction/vapor abatement system. Operational costs would be higher than those associated <br /> with the previous two alternatives due to.'system utility fees and maintenance expenses, in addition to <br /> i <br /> groundwater monitoring. <br /> Additional costs that must be considered are those incurred as a result of loss of business (service <br /> 4 station operation). The extent of lost business is dependent on the interruption caused during soil vapor <br /> extraction system installation. <br /> G . <br /> A benefit associated with the soil vapor extraction alternative is the removal of hydrocarbon mass. The <br /> removal of which reduces the long-term liability that may'be associated with leaving the untreated <br /> material in place. <br /> 5073PAR.Rp7 <br /> GROUNDWATER <br /> 177 TECHNOLOGY <br />