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99 <br /> CONTENTS '°ENMFNr S <br /> LIST OF TABLES . . . . . . . . . . . . . . . . . . . iu <br /> LIST OF FIGURES . . . . . . . . . . . . . . . . iv <br /> PROFESSIONAL CERTIFICATION v <br /> CHAPTER 1 INTRODUCTION. . . . . . . . . . . . . . . <br /> Site Description and Use <br /> CHAPTER 2 SITE INVESTIGATION HISTORY <br /> Previous Site Investigations 2-1 <br /> Geology and Hydrogeology . . . . . . . . . . 2-2 <br /> Regional Geology and Hydrogeology . , , • , . ' • : • . • . • • • • 2-2 <br /> Local Geology and Hydrogeology 2-3 <br /> ,CHAPTER 3 AIR SPARGE AND SOIL VAPOR EXTRACTION WELL <br /> INSTALLATION AND ANALYTICAL RESULTS OF SOIL SAMPLES <br /> Well Installation . . . . . . . . . . . 3-1 <br /> Local Geology3-2 <br /> . . . . . . . . . . . . . . . . . . . . . . . . . . <br /> Analytical Results 3-3 <br /> CHAPTER 4 RESULTS OF AIR SPARGEISOIL VAPOR EXTRACTION PILOT <br /> TEST <br /> Soil Vapor Extraction Pilot Test . . . . . . . . 4-1 <br /> Air Sparge Breakthrough Pressure Test . . . . 4-2 <br /> Combined Aur Sparge/Soil Vapor Extraction Pilot Test . . . . . . . . . 4-3 <br /> Results and Conclusions . . . . . . . . . . . . . . . . 4-3 <br /> CHAPTER 5. REVIEW OF REMEDIAL1 <br /> OPTIONS <br /> Remedial Options . . . . . . . . . . . . . . . . . . . . 5-1 <br /> No Action . . . . . . 5-1 <br /> Groundwater Extraction . . . . . . . . . . . . . 5-1 <br /> Soil Vapor Extraction . . 5-2 <br /> Air Sparging/Soil Vapor Extraction 5-2 <br /> Steam Injection . . . . . . . . . 5-3 <br /> Bioremedxation . . • ; : : 5-3 <br /> Recommended Remedial Option 5-3 <br /> CHAPTER b CONCLUSIONS AND RECOMMENDATIONS <br /> Conclusions . . . . . . . . . . . . . . . . . 6-1 <br /> Recommendations . . . . . . . . . 6-1 <br /> Use or disclosure of data contained on this sheet is subject to the restrtawn specified at the beginning of this document ' <br /> 05/177954EIREPORTS%I-%"A1009661TOC WP5 <br /> QMS•PS410 1 <br /> l <br />