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fi✓ u <br /> I � ! <br /> (4) BS-39 benzene 0.006 <br /> toluene 0.007 <br /> Total• 0.013 ppm <br />{ To calculate the average total hydrocarbons: <br /> (1)+(2)+(3)+(4) 0.0079+17.48+0.042+0.013 ' k <br /> .. _ ____.-_�w�____r_-_-----• 4.38 ppm k <br /> # of samples 4 <br /> Using the average total concentration of hydrocarbbas, the volume of remaining <br /> i Wrocarbons. in the sail can be calculated: i <br /> i <br /> 1.3 toms 2000 Is 4.38ppm 1 gal <br /> (127 cubic yards) X ----w-------- X-----_ �� X F-- X ----------- = 0.22 gallons <br /> an. yd. I ton 1,000,000 6.67 lbs. <br /> Approximately 0.22 gallons of hydrocarbons remain in soil at the site. , <br /> I <br /> I <br /> i <br /> a i <br /> } <br /> 5 <br /> f <br /> I f <br />! <br /> ! <br /> I � } <br /> ! I <br /> i <br /> i <br /> ,i <br />