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----- ----- <br /> Report:Groundwater-quality Monitoring—July 29, 2002: 7500 West Eleventh Street, Tracy, CA, Page i <br /> Table of Contents <br /> PROFESSIONAL CERTIFICATION AND LIMITATIONS...................................ii <br /> 1.0 INTRODUCTION ....................................................................................................... I <br /> 1.1 Site Location............................................................................................................ I <br /> 1.2 Site Codes ................................................................................................................ I <br /> 1.3 Background............................................................................ ................................. 2 <br /> 1.4 Geology and Hydrogeology..................................................................................... 3 <br /> 1.5 Distribution of Hydrocarbons in the Subsurface ..................................................... 4 <br /> 2.0 JULY 29, 2002 GROUNDWATER SAMPLING AND ANALYSIS......................... 6 <br /> 2.1 Groundwater Elevations and Flow Direction .......................................................... 6 <br /> 2.2 Purging of Monitoring Wells...... ....................................1....................................... 7 <br /> 2.2.1 Disposal of Purge Water................................................................................... 8 <br /> 2.3 Recovery of Groundwater Samples from Monitoring Wells................................... 8 <br /> 2.4 Analyses of Groundwater Samples.......................................................................... 8 <br /> 3.0 FUTURE ROUNDS OF GROUNDWATER SAMPLING AND ANALYSIS ...... . 12 <br /> 4.0 REFERENCES .......................................................................................................... 13 <br /> TABLES <br /> Table 1: Depths to Groundwater <br /> Table 2: Results of Analyses of Samples of Groundwater <br /> FIGURES <br /> Figure I Site Location <br /> Figure 2: Groundwater Contours—July 29, 2002 <br /> Figure 3: Affected Soil in Cross Section A-A' <br /> Figure 4: Affected Soil in Cross Section B-13' <br /> Figure 5: Affected Soil in Cross Section C-C' <br /> APPENDICES <br /> APPENDIX A: Field Notes <br /> APPENDIX B: Laboratory Certificates of Analysis <br /> sic <br />