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• <br /> Current Phase of Project Remediation &Monitoring <br /> Frequency of Groundwater Sampling All Monitoring Wells =Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Sampling Date March 16, 2000 <br /> Is Free Product (FP) Present on Site No <br /> FP Recovered This Quarter NIA <br /> Cumulative FP Recovered to Date N/A <br /> Current Remediation Techniques SVE/Air Bubbling (SVE system down since <br /> 11/24/97 due to low TPHG concentrations in soil <br /> vapor _,.-- <br /> Approximate Depth to Groundwater 34 14 to 36 21 <br /> Groundwater Flow Direction North to Southeast <br /> Groundwater Gradient 0 001 to 0 002 ft/ft <br /> SVE QUARTERLY OPERATION AND PERFORMANCE. <br /> Equipment Inventory Airex Katox Catalytic Oxidizer 100-scfm <br /> Operating Mode Catalytic _ <br /> SJVUAPCD Permit No N-3218-1-0 <br /> i <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/gaslpropane) 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 due to low TPHG <br /> concentrations in soil vapor and equipment failure <br /> TPHG Conc Last Period NA <br /> Initial TPHG Conc 9,900 mg/m3 November 9, 1994[following system upgrade <br /> Benzene Conc This Period NA <br /> Benzene Conc Last Period NA <br /> Initial Benzene Concentration 290 m /m3 November 9, 1994 [following system upgrade)) <br /> CM\CamPk\DataWchiveWrco\21301Qtrly12130Q100 DOC 971it 2 IT Corporation <br /> 06/06/00 <br /> t <br />