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•1 <br /> Ty <br /> Current Phase of Project Remediation <br /> Frequency of Groundwater Sampling MW-1 through MW-7= Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Sample Date February 9, 1998 <br /> Is Free Product(FP) Present on Site No <br /> FP Recovered This Quarter NA <br /> Cumulative FP Recovered to Date NA <br /> Approximate Depth to Groundwater 22 01 to 26 27 <br /> Direction of Groundwater Flow Northeast to Southeast <br /> Groundwater Gradient 0 002 to 0 004 <br /> SVE QUARTERLY OPERATION AND PERFORMANCE- <br /> Equipment Inventory King, Buck&Associates MMC-5A 100-scfm <br /> Operating Mode catalytic <br /> SJVUAPCD Permit No N-3664-1-0 <br /> TPHG Cone at End of Period (lab) 19 Mg/M3 <br /> • Benzene Conc End of Period (lab) <0 5 Mg/M3 <br /> Flow Rate End of Period 43 cubic feet per minute (pre-dilution) <br /> Applied Vacuum This Period 42 inches of water <br /> HC Destroyed This Period (lab) 328 pounds <br /> Utility Usage (electrical/gas/propane) 6,449 kilowatt hours <br /> Operating Hours This Period 967 <br /> Percent Time Operational 42 percent <br /> Number of Auto Shutdowns 4 1 low temperature,3 high condensate alarms <br /> CURRENT SOURCE (BEFORE DILUTION) INFLUENT SUMMARY(LAB): <br /> TPHG Cone This Period 3,239 7 Mg//m3 (average) <br /> TPHG Cone Last Period 6,766 7 Mg/M3 avera e <br /> Initial TPHG Cone 55,000 Mg/M3 (January 24, 1997(following system startup]) <br /> Benzene Cone This Period 3 1 Mg/M3 avera e <br /> Benzene Cone Last Period 18 Mg/M3(average) <br /> Initial Benzene Cone 980 mg/m3 (January 24, 1997 (following system startup)) <br /> SAC\N\PJft805\08051461 IAS-94zusmerl P <br /> Rev 0,7/16/98 <br />