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Third Quarter 2005 Groundwater Monitoring Report <br /> . Cohn Property,3755 Munford Avenue,Stockton,California <br /> Page 5 <br /> ADDITIONAL ACTIVITIES PERFORMED AT SITE <br /> Three offsite domestic wells were sampled during this event <br /> Apex is currently awaiting a response to the workplan dated October 4, 2005, proposing the <br /> installation of an ozone air sparge system and updated site conceptual model, and the worplan <br /> dated October 4, 2005 proposing the installation of deep zone monitoring wells The soil vapor <br /> extraction system installation is complete, and operational on October 5, 2005 <br /> ATTACHMENTS: <br /> Figure 1 Site Vicinity Map <br /> Figure 2 Site Plan Map <br /> Figure 3 Groundwater Contour Map September 19, 2005 <br /> Figure 4 TPHg in Groundwater Isoconcentration Map September 19, 2005 <br /> Figure 5 Benzene in Groundwater Isoconcentration Map September 19, 2005 <br /> Table 1 Well Construction Details <br /> Table 2 Groundwater Elevation Data <br /> Table 3 Groundwater Analytical Data <br /> Table 4 Historical Groundwater Elevation Data <br /> Table 5 Historical Groundwater Analytical Data <br /> Appendix A Apex Standard Operating Procedures <br /> Appendix B Field Data Sheets <br /> Appendix C Laboratory Analytical Reports and Chain-of-Custody Forms <br /> I <br /> • <br />