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1 <br /> TABLE OF CONTENTS <br /> Page <br /> 1.0 INTRODUCTION I <br /> 2.0 BACKGROUND 1 <br /> ' 2.1 Historical Site Use 1 <br /> 22 Initial Investigation 2 <br /> 23 UST Removal <br /> ' <br /> 24 Assessment of Hydrocarbon Impacted Soil 2 <br /> 25 Assessment of Hydrocarbon Impacted Groundwater 3 <br /> 26 Aquifer Testing 3 <br /> ' 27 Vapor Extraction Test 3 <br /> 28 Additional Investigation 3 <br /> ' 3.0 DRILLING AND SAMPLING PROCEDURES 4 <br /> ' 31 Diilling and Sampling of Vapor Extraction <br /> and Li-situ Air Spaiging Wells 4 <br /> 32 Logging 4 <br /> 33 Well Completion 4 <br /> 34 Laboratoi), Results of Soil Samples 5 <br /> 35 Quaiteily Groundwater Monitoring, January 1995 5 <br /> 35 1 Monitoring Procedures 5 <br /> 3 5 2 Groundwater Depth and Flow Direction 6 <br /> ' <br /> 353 Laboratory Results of Groundwater Samples 6 <br /> 36 Vapor Extraction/In-situ Air Spargrng Pilot Test 6 <br /> 3 6 1 The SAVE System 6 <br /> ' <br /> 362 Test Procedures 7 <br /> 3 6 3 Analytical Results of Air Sample 8 <br /> 3 6 4 Analytical Results of Groundwater Samples S <br /> ' 3 6 5 Vapor Extraction Feasibility 8 <br /> 3 6 6 Lr-situ Air Spargrng Feasibility 9 <br /> ' 4.0 SOIL VAPOR EXTRACTION 9 <br /> 41 Principles 9 <br /> 42 Proposed Vapor Extraction System (VES) 10 <br /> 43 Peinuttrng 10 <br /> 44 System Location and Design 10 <br /> 45 Supplemental Fuel 11 <br /> 46 Monitoring 11 <br />