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CLEAxRWATER <br /> G R d L P I \ C <br /> Environmental Serraces <br /> TABLE OF CONTENTS <br /> 1 0 INTRODUCTION 1 <br /> I1 1 Site Background 1 <br /> 20 GROUNDWATER MONITORING - FOURTH QUARTER 1998 1 <br /> I 2 1 Field Activities 2 <br /> 2 2 Groundwater Monitoring Results 2 <br /> I <br /> 30 SOIL VAPOR EXTRACTION AND AIR SPARGE SYSTEM 3 <br /> 3 1 Operational Data-- Soil Vapor Extraction and Treatment 3 <br /> 3 2 Operational Data-- Air Sparge System 5 <br /> 3 3 System Status -- Soil Vapor Extraction and Air Sparge 5 <br /> 40 CONCLUSIONS AND RECOMMENDATIONS 6 <br /> I50 CERTIFICATION 8 <br /> TABLES <br /> Table 1 Well Construction Specifications <br /> Table 2 Groundwater Elevations and Sample Analytical Results <br /> Table 2 Catalytic Oxidizer Operational Data <br /> Table 3 Catalytic Oxidizer Air Sample Results <br /> FIGURES <br /> Figure 1 Site Location <br /> Figure 2 Site Plan <br /> Figure 3 Groundwater Elevation Map - 11/4/98 <br /> Figure 4 Hydrocarbon Distribution and Benzene Isoconcentration Map - 11/4/9$ <br /> Figure 5 SVE System Process Flow Diagram <br /> Figure 6 Extent of Vacuum Control with SVE System Operational - 1/20/99 <br /> APPENDICES <br /> Appendix A Clearwater Groundwater Monitoring and Field Procedures <br /> Appendix B Clearwater Gauge/Purge Calculations and Well Purging Data Sheets <br /> Appendix C Laboratory Reports and Chain-of-Custody Forms <br /> IAppendix D SJVUAPCD ATC and PTO Permits <br /> I <br /> I <br /> I <br /> i <br /> I <br /> I <br />