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Current Phase of Project Remediation <br /> Frequency of Groundwater Sampling All Monitoring Wells =Quarterly <br /> Frequency of Groundwater Monitoring Quartei1y <br /> Sampling Date September 1, 1998 <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 SVE/Air Bubbling (SVE system <br /> down since 11/24/97 due to low <br /> TPHG concentrations in soil vapor) <br /> Approximate Depth to Groundwater 40 42 to 42 50 <br /> Groundwater Flow Direction East-southeast <br /> Groundwater Gradient 00008 <br /> SVE QUARTERLY OPERATION AND PERFORMANCE <br /> Equipment Inventory Airex Katox Catalytic Oxidizer(100-scfm) <br /> Operating Mode Catalytic-Pulse Mode <br /> SJVUAPCD Permit No N-3218-1-0 <br /> . Total Petroleum Hydrocarbons(TPH) SVE system down since 11/24/97 due to low <br /> Conc End of Period (lab) TPHG concentrations in soil vapor <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 /> Cp1D\QMR\3RDQTR-1\2130Q398 DOC-9811sg 1 <br /> Rev 11/19/98 <br />