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a <br /> r ' <br /> r INTERIM REMEDIATION PLAN <br /># AND <br /> EXECUTIVE SUMMARY <br /> Insitu Soil Vapor Extraction System <br /> Ultramar Service Station No. 492 <br /> 470 North Main Street, Manteca <br /> 6 February 1992 <br /> MILE OF CO NT <br /> DESCRIPTION PAGE <br /> EXECUTIVE SUMMARY . . . . . . . . . . . . . . . i-ij <br /> INTRODUCTION. . . . . . . . . . . . . . . . . . . 1 <br /> PRINCIPLE OF OPERATION. . . . . . . . . . . . . . I <br /> SITE DESCRIPTION. . . . . . . . . . . . . . . . . 1 <br /> SITE CHARACTERIZATION . . . . . . . . . . . . . . 2 <br /> Soil Gas Survey. . . . . . . . . . . . . . . 2 <br /> Performance Test/Feasibility Study . . . . . 3 <br /> INITIAL PHASE OF REMEDIATION. . . . . . . . . . . 3 <br /> DESCRIPTION OF REMEDIATION SYSTEM , . . . . . . <br /> . 4 <br /> Vapor Extraction Wells . . . . . . . . . . . 4 <br /> . . . . <br /> Underground Piping . . . . 4 <br /> Manifold Box . . . . . . . . . . . . . . . . 4 <br /> Water Accumulator. . . . . . . . . . . 4 <br /> Dilution Valve . . . . . . . . . . . . 4 <br /> Vacuum Pump. . . . . . . . . . <br /> Equipment Area . . . . , , , 5 <br /> Propane Trap Wagon . . . . . . . . . . . . . 5 <br />