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i <br /> U <br /> HYDROCARBON MASS IN SOIL CALCULATIONS <br /> James L.Urbani Charter Elementary School <br /> (Formerly Heritage Square) <br /> 640 N.San Joaquin Street <br /> Stockton,San Joaquin County <br /> Total Mass of Hydrocarbons in Soil 608.48 lbs <br /> Volume and Mass of Soil with Hydrocarbons Contamination in Site Subsurface <br /> estimated lateral extent 308 ft2 <br /> estimated thickness 6.0 R <br /> volume in cubic feet 648 W <br /> Soil Mass in lbs @ 110 lbs/ft' 71,280 lbs <br /> Total mass of impacted soil in kg 32,332 kg <br /> t <br /> Detectable Concentration of Hydrocarbons in Soil <br /> 3572D-B3-15' 1,800 mg/kg <br /> 3572D-B3-15.5' 17,600.789 mg/kg <br /> TB-1,S-1-15' 7,760.077 mg/kg <br /> "1B-1, S-2-2I.5' 21,600.178 mg/kg <br /> geometric mean cone. 8,536.5 mg/kg <br /> Calculated mass of hydrocarbons in mg 276,004,113 mg <br /> calculated mass of hydrocarbons in kg 276.00 kg <br /> calculated mass of hydrocarbons in lbs 608.48 lbs <br /> 1 <br />