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TABLE OF CONTENTS <br /> Section Pale <br /> 1.0 INTRODUCTION 1-1 <br />' 1 1 SITE DESCRIPTION 1-1 <br /> 12 OBJECTIVES 1-2 <br /> 13 APPROACH 1-2 <br /> 20 GEOLOGY AND HYDROGEOLOGY 2-1 <br /> 2 1 REGIONAL AND LOCAL GEOLOGY 2-1 <br /> 2 2 REGIONAL AND LOCAL HYDROGEOLOGY 2-1 <br /> 30 SUMMARY OF PREVIOUS INVESTIGATIONS 3-1 <br />' 3 1 PREVIOUS SOIL INVESTIGATIONS 3-1 <br /> 3 2 PREVIOUS GROUNDWATER INVESTIGATIONS 3-2 <br /> 40 SITE INVESTIGATION ACTIVITIES 4-1 <br /> 4 1 LOCAL WELL SURVEY 4-1 <br /> 4 2 GROUNDWATER SAMPLING AND ANALYSIS 4-2 <br /> 4 3 SLUG TEST PROCEDURES 4-3 <br />' 50 RESULTS AND DISCUSISONS 5-1 <br /> 5 1 GROUNDWATER SAMPLING RESULTS 5-1 <br /> 5 1 1 Vertical Groundwater Sampling Results 5-1 <br />' 5 1 2 Quarterly Groundwater Sampling Results 5-2 <br /> 5 1 3 Comparison to Action Levels 5-2 <br /> 52 HISTORICAL TRENDS OF PETROLEUM HYDROCARBONS IN <br /> SUBSURFACE 5-3 <br /> 52 1 Soil Trends 5-3 <br /> 5 2 2 Groundwater Trends 5-3 <br />' 5 3 SLUG TEST RESULTS 5-3 <br /> . 5 4 ESTIMATION OF MASS OF PETROLEUM HYDROCARBONS IN SOIL <br /> AND GROUNDWATER 5-4 <br /> r5 5 NATURAL ATTENUATION EVALUATION 5-4 <br /> i <br /> 11SBAIISHAREBIPRW441U40100041SYYARMMAINTYARBSA.BOC i URS Greiner Woodward Clyde <br />