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WPA <br /> f TABLE OF CONTENTS <br /> I ' <br /> Page <br /> 4 INTRODUCTION . ... . ........... ..... ............. ... .... ............ .. . I <br /> i BACKGROUND .... . . . . ... ... ............ .. ............. ..... <br /> PURPOSE AND SCOPE ..... .... .... ..... ........ ... .... ... .. <br /> 2 <br /> SITE INVESTIGATION 2 <br /> REMEDIAL INVESTIGATION 2 <br />. . ,., Procedures . .................. .... '.. .. . . ... ....... ............ 2 <br /> Results ... 3 <br /> FEASIBILITY STUDY .. . .. . .. .. . 3 <br /> 4.., Procedures . . ... ... .... ..... ... . .... .. .. . ....... . . ... . . . . . ...... 3 <br /> Results .. . .. .................. ... .. ....... ... .. .. ... .. ... ... ... 6 <br /> CONCLUSIONS ...... ........ .. . . . .......... . ... . . . <br /> ,..� . . ....... . 7 <br /> REMEDIATION ALTERNATIVES 7 <br /> In-Situ Vapor Extraction Soil Remediation System . ::::: $ <br /> Soil Excavation and Disposal . ..... ............. .. 8 <br /> Active soil Bioremediation . . .....• <br /> RISK ASSESSMENT 9 <br /> site 9 <br /> In-Situ Vapor ExtrA:tion Sail Remediation System ... 9 <br /> Soil Excavation and Disposal , 10 <br /> Active Soil Bioremediation <br /> COSTS FOR IMPLEMENTATION, OPERATION, AND MAINTENANCE OF REMEDIATION 10 <br /> _ ALTERNATIVES ... 10 <br /> In-Situ Vapor Extraction Soil Remediation System ... 10 <br /> Soil Excavation and Disposal . 10 <br /> iat,ian <br /> Active Soil Bioremed <br /> .. . . 10 <br /> RECOMMENDED REMEDIATION ALTERNATIVE <br /> � L <br /> f <br />