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Current Phase of Project Remediation <br /> Frequency of Groundwater Sampling Quarter) <br /> Frequency of Groundwater Monitoring Quarter) <br /> Sampling Date May 30, 1996 <br /> Is Free Product (FP) Present On Site No <br /> FP Recovered this Quarter NIA <br /> Cumulative FP Recovered to Date NIA <br /> Current Remediation Techniques SVE/Air 5parging <br /> Approximate Depth to Groundwater 46 65 to 48 79 <br /> Groundwater Flow Direction East to Southeast <br /> Groundwater Gradient 0 002 <br /> SVE QUARTERLY OPERATION AND PERFORMANCE <br /> Equipment Inventory Airex Katox Thermal Oxidizer 100-scfm <br /> Operating Mode Catalytic <br /> SJVUAPCD Permit No N-3218-1-0 <br /> Total petroleum hydrocarbons <br /> (TPH)Conc End of Period (lab) 2,100 m /m3 <br /> Benzene Conc End of Period (lab) 33 Mg/M3 <br /> Flow Rate End of Period 56 cubic feet per minute <br /> Applied Vacuum This Period 47 inches of water <br /> HC Destroyed this Period (lab) 866 pounds <br /> Utility Usage 27,182 kilowatt hours <br /> (electrical/gas/propane) <br /> Operating Hours This Period 1968 <br /> Percent Time Operational 90% <br /> Number of Auto Shutdowns 1 <br /> CURRENT SOURCE(BEFORE DILUTION) INFLUENT SUMMARY(LAB) <br /> Total petroleum hydrocarbons as <br /> gasoline (TPHG)Conc This 2,100 mg/m3 <br /> Period <br /> TPHG Conc Last Period 3,200 mg1m3 <br /> Initial TPHG Conc 9,900 Mg/M3 November 9, 1994[following system upgrade])_ <br /> Benzene Conc This Period 33 Mg/M3 <br /> Benzene Conc Last Period 18 m /m3 <br /> . Initial Benzene Concentration 290 mq/m3 (November 9, 1994 [following system upgrade])) <br /> SA"\PJQ+ SO"8051140 6BS-96\cab I <br />