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� h <br /> COMPUTATION SHEET <br /> OJECT TITLE ARCO Service Station 6100 PROJECT NO 20805-152 008 <br /> SCRIPTION Mass of Petroleum Hydrocarbons in Soil SHEET 5 OF <br /> PREP BY MC DATE 8116199 CHKD BY DATE <br /> Mass of BTEX in the interval between 10 and 25 feet below ground surface <br /> Mass of BTEX = Sod Vol Density lb TPHG/lb soil <br /> (ft3) (pcf) <br /> 1000 ppm contour line <br /> Mass BTEX 1500 110 000237 <br /> Mass BTEX= 391 lbs within the 100 ppm contour line <br /> 100 ppm contour line <br /> Mass BTEX 22605 110 000034 <br /> Mass BTEX= 850 lbs within the 100 ppm contour line <br /> 10 ppm contour line <br /> Mass BTEX= 54285 110 0000064 <br /> Mass BTEX 382 lbs within the 10 ppm contour line <br /> 1 ppm contour line <br /> Mass BTEX 53760 110 0000055 <br /> Mass BTEX 325 lbs within the 1 ppm contour line <br /> 1949 lbs of BTEX <br /> Mass of BTEX in the interval between 26 and 45 feet below ground surface <br /> Mass of BTEX - Soil Vol Density lb TPHG/lb soil <br /> (ft3) (pcf) <br /> 1000 ppm contour line <br /> Mass BTEX 47360 110 000147 <br /> Mass BTEX= 7658 lbs within the 100 ppm contour line <br /> 100 ppm contour line <br /> Mass BTEX 47880 110 0000376 <br /> Mass BTEX= 1980 lbs within the 100 ppm contour line <br /> 10 ppm contour line <br /> Mass BTEX= 60300 110 0000032 <br /> Mass BTEX 212 lbs within the 10 ppm contour line <br /> 1 ppm contour line <br /> Mass BTEX 54600 110 0 0000037 <br /> Mass BTEX 22 lbs within the 1 ppm contour line <br /> 9873 lbs of BTEX <br /> H,/exceldat/arco/6100calc As <br />