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Report:Groundwater-pality Monitoring—September 11,2001: 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...... I <br /> 1.2 Site Codes ...........................................................................I.................................... I <br /> 1.3 Background.............................................................................................................. I <br /> 1.4 Geology and Hydrogeology..................................................................................... 2 <br /> 1.5 Distribution of Hydrocarbons in the Subsurface ..................................................... 3 <br /> F...,: 2.0 SEPTEMBER 11, 2001 GROUNDWATER SAMPLING AND ANALYSIS........... 3 <br /> 2.1 Groundwater Elevations and Flow Direction .......................................................... 3 <br /> 2.2 Purging of Monitoring Wells................................................................................... 4 <br /> 2.3 Recovery of Groundwater Samples from Monitoring Wells................................... 5 <br /> 2.4 Analyses of Groundwater Samples.......................................................................... 5 <br /> 2.5 Disposal of Purge Water.......................................................................................... 7 <br /> 3.0 FUTURE ROUNDS OF GROUNDWATER SAMPLING AND ANALYSIS.......... 7 <br /> 4.0 REFERENCES ............................................................................................................ 8 <br /> TABLES <br /> Table 1: Depths to Groundwater <br /> Table 2: Results ofAnalyses of Samples of Groundwater <br /> FIGURES <br /> Figure 1: Site Location <br /> Figure 2: Groundwater Contours— September 11, 2001 <br /> Figure 3. Affected Soil in Cross Section A-A' <br /> Figure 4: Affected Soil in Cross Section B-B' <br /> Figure 5: Affected Soil in Cross Section C-C' <br /> APPENDIX A: Field Notes <br /> APPENDIX B: Laboratory Certificates of Analysis <br /> sic <br />