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Mr.Harlin Knoll July 31, 2002 <br /> San Joaquin County Public Health Services Project No.2007-0065-01 <br /> Page 5 <br /> If you have any questions regarding this report, please contact Gowri Kowtha at (530) <br /> 676-6001. <br /> Sincerely, � ��D GED <br /> 57-RATUS ENVIRONMENTAL, INC. a� EN J. <br /> 0.5577 <br /> ft�o'. S. Kowtha, P.E. Stephen J. Carter, R.G. Nom't Manager Senior Project Supervisor OP CpL�F <br /> Attachments: Table 1 Historical Groundwater Elevation Data <br /> Table 2 Historical Groundwater Analytical Summary <br /> Table 3 Operational Uptime and Flow Rate For Soil Vapor <br /> Extraction System <br /> Table 4 Flow Rates and Analytical Results of Air Sample Analyses <br /> Table 5 Extraction and Emission Rates <br /> Figure 1 Site Location Map <br /> Figure 2 Groundwater Elevation Contour Map, 2"d Quarter 2002 <br /> Figure 3 TPHG,Benzene, and MTBE in Groundwater, <br /> 2nd Quarter 2002 <br /> Figure 4 Cumulative Mass Removed and Concentrations of <br /> TPHG Vs Time <br /> Appendix A Field Data Sheets <br /> Appendix B Sampling and Analysis Procedures <br /> Appendix C Certified Analytical Reports and Chain-of-Custody <br /> Documentation <br /> cc: Mr. Charles Miller,USA Gasoline Corporation <br /> Mr. Marty Hartzell, California Regional Water Quality Control Board <br /> Ms. Jan Sudomier, San Joaquin Valley Unified Air Pollution Control District <br /> PAUSA Gasoline100651Qtrly120021USA_65_2Q02.doc 6TRA7us <br />