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TABLE OF CONTENTS <br /> 1 . INTRODUCTION .................I............................................................--.......................Mm...................................... 1 <br /> 2. SITE BACKGROUND ........................................................................................................................................ 1 <br /> 3. QUARTERLY GROUNDWATER MONITORING — JULY, 2000 ............................................................... 1 <br /> 3 . 1 GROUNDWATER MONITORING OBSERVATIONS AND PARAMETERS . . . .... . . . . . . ... . .. . .. . . . . . . . . . .. . .. . . . . ..2 <br /> 3 .2 GROUNDWATER SAMPLING . . .. .. . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . ... . . . . ... . . . . . . . .. . . . . . . . . . . . .. . . . . . .. .. .. . .. . .. . . . . . . . .. . . . .. . . . . .. . . .. . . . . . .2 <br /> 4. GROUNDWATER MONITORING RESULTS ...............................................................................................2 <br /> 4. 1 GROUNDWATER ELEVATION CONTOURS . . . . .. . . . . . . ..... .. ... . ... .. . . .. . . . . . . . . . .. . . ... .. . . ... . . . . . . ..... . . .. . . .. . .. . . . ... . . .. . ..2 <br /> 4.2 LABORATORY ANALYSES (TPH-G, BTEX, OXYGENATES/ADDITIVES) . . . .. . . . . . . . . . . . . . ... . . . . . . . . . .. . . . ... ..3 <br /> 5. DISCUSSION OF RESULTS ..... .....I ................................................................................................................4 <br /> 5 . 1 DISCUSSION OF GROUNDWATER ELEVATIONS . . . . . . . . . . . . . . . .... . .. . . . . . . . . . . .. . ... . . . . . . . . . . . . . . . . .. . . . . .. . . . . . . . .... .. . .... 4 <br /> 5 .2 DISCUSSION OF ANALYTICAL RESULTS .. . I .. . .. . . . . . . . . . .... . . . . . . . ... . . . . . .. . . .. . .. .. . . . . . . . . . . . . . .. . . . . . . ... . . . . . . . .. . .... .. ..4 <br /> 5 .2 . 1 DISCUSSION OF BENZENE CONCENTRATIONS . .. . . . . . . . .. . . . . . . . . .. . . . . . . .... . ... . . . .. . . . . . . .. .. . . . .. . . . . . . . ... . . .. .. ..5 <br /> 5 .2 .2 DISCUSSION OF MTBE CONCENTRATIONS . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . .. .... . . ...... .. . . . . .. . . .. . . . . . .. ... . . .. . . .. 5 <br /> 5 .2 .3 DISCUSSION OF OTHER ANALYTE CONCENTRATIONS . . . . . . . . .. .. .... . . . . . . . . . ... _ . . . . . .. . . . . . .. . . ... . . . . .. . .. . 5 <br /> 6. RECOMMENDATIONS .....................................................................................................................................5 <br /> LIST OF APPENDICES <br /> APPENDIX A <br /> Figure 1 Vicinity Map <br /> Figure 2 Groundwater Elevation Contour Map — July 12, 2000 <br /> Figure 3 Groundwater Analytical Results — July 12 and 13, 2000 <br /> Figure 4 Benzene Iso-concentration Contour Map — July 12 and 13, 2000 <br /> Figure 5 MTBE Iso-concentration Contour Map — July 12 and 13, 2000 <br /> Figure 6 Hydrograph/Hydrograph Table <br /> Figure 7 Benzene and GWE vs. Time <br /> Figure 8 MTBE and GWE vs. Time <br /> APPENDIX B <br /> Table A - Historical Groundwater Analyses (MW-1 through MW-7) <br /> Groundwater Monitoring Field Forms (MW-1 through MW-7) <br /> Groundwater Measurement Field Form <br /> APPENDIX C <br /> Certificates of Analyses (MW-1 through MW-7) <br /> Chain-of-Custody <br /> CONDOR <br />