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� Q <br /> e'�o'V GIS©v <br /> Table4 �\ �( <br /> Calculation of Residual Sorbed-Phase TPHg Mass <br /> 1817 South Fresno Ave , Stockton , CA 4 <br /> 0 <br /> TPHg Mass =(Avg. TPHg cone. ) (V) (p) <br /> where, Avg. TPHg conc. = Average TPHg Concentration (see calculatieIpw) <br /> V = volume of affected media = area ( 10,881 ft ) x thicknes (10 ft ) f08,810 ft3 <br /> p = soil density (assume 1001bs/ft3) . <br /> 9 (lbs.) = 9 ) (V) (P) <br />� <br /> TPHg mass lbs. (Avg . TPHg cone. <br /> (unitless) (f3) (lbs/f3) <br /> TPHg mass (lbs.) = (0.000264) (108,810) ( 100) <br /> Sorbed TPHg mass (lbs.) = 2872.58 <br /> sorbed TPHg (gals) = 463.32 <br /> Calculation of Avg . TPHg cone. For depth interval 19 to 25 feet bgs . <br /> Sample TPHg (mg/Kg) <br /> SB-1 -11 ' 44 <br /> SB-1 -21 ' 270 <br /> SB-1 -26' 320 <br /> SB-2-26' 570 <br /> SB-2-31 ' 0.5 <br /> SB-5-21 ' 340 . <br /> SB-6-21 ' 20 <br /> SB-6-26' 70 <br /> MW-5B-25' 13000 <br /> MW-6- 19' 1 .9 <br /> Average = 263 .64 mg/Kg <br /> (Average = 2636 .4 mg/Kg / 10) <br />