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• TABLE OF CONTENTS <br /> INTRODUCTION.......................................................................................................................................................I <br /> SITEDESCRIPTION.................................................................................................................................................I <br /> PREVIOUS ENVIRONMENTAL WORK...................................................................................:............................1 <br /> OZONE MICROSPARGE SYSTEM PILOT TEST...............................................................................................3 <br /> SystemInstallation........................................................................................ ........................................................3 <br /> SystemOperation.................................. ....................................................................................... ....................3 <br /> GroundwaterSampling ............................................................................................................................................4 <br /> GroundwaterSampling Results.................................................................................................................................4 <br /> TPHgConcentration Trends..................................................................................................................................4 <br /> BenzeneConcentration Trends.............................................................................................................................5 <br /> Discussionof Results.................... ........................................................................................................................6 <br /> CONCLUSIONS AND RECOMMENDATIONS....................................................................................................6 <br /> TABLES <br /> Table 1. C-Sparge System Pilot Test Groundwater Analytical Results <br /> FIGURES <br /> Figure 1. Vicinity Map <br /> Figure 2. Site Plan <br /> Figure 3. Extended Site Plan <br /> Figure 4. Area Map <br /> APPENDICES <br /> Appendix A Well Construction Details <br /> Appendix B. C-Sparge System Pilot Test TPHg and Benzene Groundwater Concentration Graphs <br /> Appendix C. Historical Quarterly Groundwater Monitoring and.Sampling Data <br /> Appendix D. Laboratory Analytical Reports and Chains-of Custody <br />