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r <br /> r <br /> TABLE OF CONTENTS <br /> r1 0 INTRODUCTION . - ... - .. .. .. .. .. . . .. .. ..... i <br /> i <br /> 2 0 SITE BACKGROUND ... <br /> .. .. . .... ... .... . .. .. ... . . . ...... . . . . .. . ......... ..1 <br /> 3 0 QUARTERLY GROUNDWATER MONITORING—APRIL 2000 . . . .... . ..2 <br /> 3 1 GROUNDWATER MONITORING OBSERVATIONS AND PARAMETERS 2 <br /> 3 2 GROUNDWATER SAMPLING 3 <br /> 4 0 GROUNDWATER MONITORING RESULTS . . . . . ....... ... . . . ... . ..3 <br /> 41 GROUNDWATER ELEVATION CONTOURS 3 <br /> 4 2 LABORATORY ANALYSES 4 <br /> S 0 DISCUSSION OF RESULTS- .. . . . .... ....... . .. . ... .. . . ..... . .... . --- . .5 <br /> 5 1 DISCUSSION OF GROUNDWATER ELEVATIONS 5 <br /> 5 2 DISCUSSION OF ANALYTICAL RESULTS 5 <br />' 6 0 RECOMMENDATIONS .. ... .. . ... .. ..... . .......... . . . ..........6 <br /> LIST OF APPENDICES <br /> APPENDIX A <br /> Figure I Vicinity Map <br /> Figure 2 Groundwater Contour Map <br />' Figure 3 Groundwater Analytical Results for April 11, 12, 13,2000 <br /> Figure 4 Benzene Concentration Contours for April 11, 12, 13,2000 <br /> Figure 5 MTBE Concentration Contours for April 11, 12, 13,2000 <br /> I Fsgure 6 Hydrograph and Hydrograph Table <br /> Figure 7 Benzene and GWE versus Time <br /> Figure 8 Xylene and GWE versus Time <br /> Figure 9 MTBE and GWE versus Time <br />' APPENDIX B <br />' Table A- Historical Groundwater Analyses (MW-1 through MW-8 and SVE wells) <br /> Groundwater Monitoring Field Forms(MW-1 through MW-8 and SV-9) <br />' APPENDIX C <br />_ Certificates of Analyses (MW-1 through MW-8 and SV-9) <br /> Chain-ol-Custody <br /> • <br />' L� CONDOR <br />