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c3 <br /> RESULTS OF VENT-ROI ANALYSIS <br /> SEFFECTIVE RADIUS CALCULATION FOR CONVENTIONAL SOIL VAPOR EXTRACTION SYSTEM <br /> I <br /> San Joaquin Catholic Cemetery site in Stockton, California <br /> Fresh Gasoline (contaminant mixture, volatile and biodegradable) <br /> 1og10(MW P*) = 2 .45 - 3 . 97 bm <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 8 inch boreholes, extending to groundwater, <br /> screened from 10 to 30 feet <br /> Thickness of Vented Soil Interval = 20 feet <br /> Slope of log10 (P) vs Distance from Pilot Test = . 015 per ft <br /> Soil Gas Temperature = 64 deg F <br /> Applied Vacuum = 82 in. water column <br /> Air Flow Rate per Vapor Extraction Well = 13 . 6 scfm <br /> Desired Time to Cleanup = 730 days <br /> Cleanup Goal = 99 % removal <br /> VOLATILIZATION: SINGLE WELL EFFECTIVE RADIUS = 5. 56 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br /> BIODEGRADATION: SINGLE WELL RADIUS OF INFLUENCE = 20. 12 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br /> VOL. PLUS BIO. : SINGLE WELL EFFECTIVE RADIUS = 20. 12 FEET <br /> INSUFFICIENT SURFACE INFILTRATION FOR MULTIPLE WELL SYSTEM <br /> • <br />