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Atlantic Richfield Company Page in ARCO Station No 4932 Stockton California August 29,2002 . TABLES Table 1 Soil Borings and Well Completion Details Table 2 Groundwater Elevation and Analytical Data Table 3 Groundwater Gradient Data Table 4 Water Supply Well Data Table 5 Fuel Oxygenates Analytical Data Table 6 Soil Analytical Data Table 7 Soil Analytical Data—Stockpiled Soil Table 8 Groundwater Batch Extraction—Total Volume Removed FIGURES Figure I Site Location Map Figure 2 Site Plan Figure 3 Generalized Geologic Cross-Sections GC' and D-D' Figure 4 Groundwater Elevation Contour Map-Shallow Water-beanng Zones—July 12, 2002 Figure 5 Groundwater Elevation Contour Map-Deep Water-bearing Zones-July 12, 2002 Figure 6 Groundwater Concentration Map—July 12, 2002 Figure 7 TPHg Isoconcentration Map-Shallow Water-bearing Zones—July 12, 2002 Figure 8 TPHg lsoconcentration Map-Deep Water-bearing Zones—July 12, 2002 Figure 9 Benzene Isoconcentration Map-Shallow Water-bearing Zones—July 12, 2002 Figure 10 Benzene Isoconcentration Map-Deep Water-beanng Zones--July 12, 2002 Figure 11 MtBE Isoconcentration Map-Shallow Water-bearing Zones—July 12, 2002 Figure 12 MtBE Isoconcentration Map-Deep Water-bearing Zones—July 12, 2002 Figure 13 Proposed Remedial Well Locations APPENDICES Appendix A SJCEHD letters dated February 14, 2002 and March 13, 2002 Appendix B Boring Logs and Well Construction Diagrams Appendix C Histoncal Soil Analytical Data Appendix D Histoncal Groundwater Analytical Data Appendix E Historical Figures Appendix F Referenced Regulatory Correspondence Letters Appendix G Historical Cross-Sections Appendix H Field and Laboratory Procedures Appendix I Site Assessment Certified Laboratory Analytical Reports, Chain-of-Custody Documentation and Field Notes Appendix J Well Survey Data Appendix K Mass Calculation Data 11ARCO\49321PAR\PAR doe