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� v <br /> RESULTS OF VENT-ROI ANALYSIS <br /> ;i EFFECTIVE RADIUS CALCULATION FOR CONVENTIONAL SOIL VAPOR EXTRACTION SYSTEM <br /> San Joaquin Catholic Cemetery site in Stockton, CA <br /> ; ww Fresh Gasoline (contaminant mixture, volatile and biodegradable) <br /> y �y loglo (MW P*) = 2.45 - 3.97 8m <br /> Temperature Constant = 1904 deg K <br /> Liquid Density = .7 g/cc ' <br /> Zero Order Bioremediation Rate Constant = 8. 6 ppm/day <br /> Initial Total Soil Contaminant Concentration = 12000 ppm <br /> Residual (Non--degradable) Soil Concentration = 1 ppm <br /> Vertical wells in 10 inch boreholes, extending to groundwater, <br /> screened from 35 to 58 feet <br /> Thickness of Vented Soil Interval = 23 feet <br /> Slope of 10910(P) vs Distance from Pilot Test = . 014 per ft <br /> Soil Gas Temperature = 64 deg F <br /> Applied Vacuum = 93 in. water column <br /> Air Flow Rate per Vapor Extraction Well = 11. 1 scfm <br /> Desired Time to Cleanup = 1095 days <br /> Cleanup Goal = 99 % removal <br /> VOLATILIZATION: SINGLE WELL EFFECTIVE RADIUS = 5.75 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br /> BIODEGRADATION: SINGLE WELL RADIUS OF INFLUENCE = 17. 29 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br /> VOL. PLUS BIO. : SINGLE WELL EFFECTIVE RADIUS = 17 . 29 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br />