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t <br /> Current Phase of Project Remediation <br /> Frequency of Groundwater Sampling All Monitoring Wells W Quarter) <br /> Frequency of Groundwater Monitoring Quarter) <br /> Sampling Date November 29, 1999 <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 down since <br /> 11/24/97 due to low TPHG concentrations in soil <br /> vapor) <br /> Approximate Depth to Groundwater 38 09 to 40 24 ft <br /> Groundwater Flow Direction North-northeast to Southeast <br /> Groundwater Gradient 0 001 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 /> 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 /> 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 /> CP1C(Common\QMR1ARC014thQ9912130Q499 DOC-98%g 1 IT Corporation <br /> 02/07/00 <br />