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1 <br /> ,(:VV: A%Tc <br /> A S S O C I A T E 5 I N C <br /> TABLE OF CONTENTS <br /> INTRODUCTION 1 <br /> ' BACKGROUND INFORMATION 1 <br /> HYDROGEOLOGY 3 <br /> STRATIGRAPHY 4 <br /> Recent Deposits 4 <br />' HYDROCARBON-IMPACTED SOIL AND GROUNDWATER 4 <br /> Soil <br /> 5 <br />' Groundwater 5 <br /> POTENTIAL EXPOSURE PATHWAYS 5 <br /> General 5 <br /> Site Specific Pathways 6 <br /> REMEDIAL ALTERNATIVES - SOIL 7 <br /> 1 <br /> Natural Attenuation 7 <br />' Vapor Extraction 7 <br /> Excavation 7 <br /> REMEDIAL ALTERNATIVES - GROUNDWATER 7 <br /> Pump and Treat 7 <br />' Air Sparging S <br /> Natural Attenuation g <br /> Enhanced Natural Attenuation <br /> RECOMMENDATIONS 9 <br /> 1 <br /> TABLES <br />' TABLE 1 SUMMARY OF GROUNDWATER MONITORING DATA <br /> TABLE 2 SUMMARY OF DETECTED PETROLEUM HYDROCARBON CONSTITUENTS <br /> DETECTED IN SOIL SAMPLES <br />' TABLE 3 SUMMARY OF GROUNDWATER ANALYTICAL DATA <br /> �l <br /> Former Cheaper##37 January 29 2004 <br /> ATC Project Number 5425847 0037 Page i <br />