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Current Phase of Protect Monitorir2/q Remediation <br /> Frequency of Groundwater Sampling All Monitoring Wells=Quarterly <br /> Frequency of Groundwater Monitoring Quarter) <br /> Sampling Date March 13,2002 <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 Air Bubbling <br /> Approximate Depth to Groundwater 35 93 to 38 00 ft b s <br /> Groundwater Row Direction East-Southeast <br /> Groundwater Gradient 0 0016 fVft <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 (TPN) <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 [following 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 upgrade]) <br /> P 1ARCO121301QTRLY120021Arco_2130_1 Q02 doc Delta <br />