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TABLE OF CONTENTS <br /> I. INTRODUCTION....................................................................................................................1 <br /> 2. HYDROGEOLOGIC CONCEPTUAL SITE MODEL............................................................2 <br /> 2.1 Geology...........................................................................................................................2 <br /> 2.2 Groundwater Flow...........................................................................................................2 <br /> 2.3 Sulfolane..........................................................................................................................3 <br /> 2.4 Data Gaps Identified Based on CSM Review.................................................................3 <br /> 3. OBJECTIVES AND RATIONALE.........................................................................................4 <br /> 4. INVESTIGATION IMPLEMENTATION...............................................................................6 <br /> 4.1 Pre-Field Activities..........................................................................................................6 <br /> 4.2 Investigation Activities....................................................................................................6 <br /> 4.2.1 Drilling and Geologic Logging...........................................................................6 <br /> 4.2.2 Grab-Groundwater Sampling..............................................................................7 <br /> 4.2.3 Monitoring Well Installation...............................................................................7 <br /> 4.2.4 Monitoring Well Development ...........................................................................8 <br /> 4.2.5 Monitoring Well Sampling..................................................................................8 <br /> 4.2.6 Equipment Decontamination and Investigation-Derived Waste.........................9 <br /> 4.2.7 Surveying.............................................................................................................9 <br /> 5. SCHEDULE AND REPORTING ..........................................................................................10 <br /> 6. REFERENCES.......................................................................................................................I l <br /> LIST OF FIGURES <br /> Figure 1: Site Location Map <br /> Figure 2: Proposed Soil Boring Locations <br /> Figure 3: Generalized Stratigraphy Layering West to East with Sulfolane <br /> Figure 4: Deep Sand and Gravel Layer <br /> Figure 5: Hydrographs <br /> Site Characterization Work Plan ii June 22,2018 <br />