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Table of Contents <br /> 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> i <br /> 2.0 PROJECT BACKGROUND INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.1 Site Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.2 Site History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> ' 2.3 Site Vicinity Well Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 3.0 SUMMARY OF INVESTIGATION RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 3.1 Site Geology . . . . . . . . . . . ' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 3.2 Site Hydrogeology 2 <br /> 3.3 Distribution of Petroleum Hydrocarbons in Soil . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 3.4 Distribution of Petroleum Hydrocarbons in Ground Water . . . . . . . . . . . . . . . . . . . 3 <br /> 4.0 SITE REMEDIATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 <br /> ' 5.0 ASSESSMENT OF REMEDIATION EFFECTIVENESS . . . . . . . . . . . . . . . . . . . . . . 4 <br /> 6.0 DISCUSSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 7.0 RATIONALE FOR CLOSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> 8.0 REMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> Tables <br /> TABLE 1 Ground Water Elevations <br /> TABLE 2 Analytical Results for Soil Samples Collected From Borings <br /> TABLE 3 Analytical Results for Soil Samples Collected From Tank Pits and Product Line Trenches <br /> TABLE 4 Summary of Ground Water Sample Analytical Results <br /> 1 <br /> F urea <br /> ' FIGURE 1 Site Location Map <br /> FIGURE 2 Site Map <br /> ' FIGURE 3 Site Map as of October 1994 <br /> FIGURE 4 Geologic Crass Section Location Map <br /> FIGURE 5 Geologic Cross Section A - A' <br /> ' FIGURE 6 Geologic Cross Section B - B' <br /> FIGURE 7 Tank Pit and Product Line Soil Sampling Locations <br /> FIGURE 8 Approximate Lateral Extent of Petroleum Hydrocarbons in Vadose Soil <br /> FIGURE 9 Approximate Vertical Extent of Petroleum Hydrocarbons in Vadose Soil <br /> Appendices <br /> APPENDIX A Well Inventory <br /> APPENDIX B Extent of Petroleum Hydrocarbons in Soil and Ground Water as of May 1987 <br /> 1 <br /> i <br /> 1 <br />