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Current Phase of Project Monitoring/Remediation <br /> Frequency of Groundwater Sampling All Monitoring Wells=Quarter/ <br /> Frequency of Groundwater Monitoring _Quarterly <br /> Sampling Date June 20, 2001 <br /> Is Free Product(FP)Present on Site No <br /> FP Recovered This Quarter N/A <br /> Cumulative FP Recovered to Date N/A <br /> Current Remediation Techniques Air Bubbling <br /> Approximate Depth to Groundwater 36 98 to 39 90 ft bgs <br /> Groundwater Flow Direction East <br /> Groundwater Gradient 0 0008 ftlft <br /> SVE QUARTERLY OPERATION AND PERFORMANCE <br /> Equipment Inventory Airex Katox Catalytic Oxidizer(100-scfm) <br /> Gast Air Compressor <br /> Operating Mode NA <br /> SJVUAPCD Permit No NA <br /> . Total Petroleum Hydrocarbons(TPH) <br /> Conc End of Period (lab) SVE system down since 11/24/97 <br /> Benzene Conc End of Period (lab) NA <br /> Flow Rate End of Period NA <br /> Applied Vacuum This Period NA <br /> HC Destroyed This Period (lab) NA <br /> Utility Usage(electrical/gas/propane) NA <br /> Operating Hours This Period NA <br /> Percent Time Operational NA <br /> Number of Auto Shutdowns NA <br /> CURRENT SOURCE (BEFORE DILUTION) INFLUENT SUMMARY (LAB) <br /> Total Petroleum Hydrocarbons as <br /> Gasoline (TPHG)Conc This Period SVE system down since 11/24/97 <br /> TPHG Conc Last Period NA <br /> Initial TPHG Conc 9,900 Mg/M3 November 9, 1994 [tollowing system upgrade]) <br /> Benzene Conc This Period NA <br /> Benzene Conc Last Period NA <br /> Initial Benzene Concentration 290 mg/m3 November 9, 1994 [following system u rade <br /> C IARC0121301QTRLY120011Arco 2130 2Q01 Report doc Delta <br /> 8/29/01 <br />