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1 <br /> Table 4 <br /> Calculation of Residual Sorbed-Phase TPHg Mass <br />' 1817 South Fresno Ave, Stockton, CA <br /> i <br /> I <br />' TPHg Mass =(Avg TPHg conc ) (V) (p) <br /> where, Avg TPHg conc =Average TPHg Concentration (see calculatien'b'blow) <br /> V=volume of affected media = area (10,881 ft2)x thicknes (10 ft} =108,810 ft' <br />' p = sod density(assume 100lbsIft3) <br /> TPHg mass (lbs ) = (Avg TPHg conc ) (V) (p) <br />' (unitless) (ft) (lbs/ft ) <br /> TPHg mass (lbs ) = (0 000264) (108,810)(100) <br /> ISorbed TPHg mass (lbs) = 287258 <br /> Sorbed TPHg (gals) = 46332 <br /> I <br /> Calculation of Avg TPHg conc For depth interval 19 to 251feet bgs <br /> Sample TPHg (mg/Kq) <br /> SB-1-11' 44 <br /> SB-1-21' 270 •Ti`J <br />' SB-1-26' 320 <br /> SB-2-26' 570 f ,' <br /> SB-2-31' 05 <br /> SB-5-21' 340 <br /> SB-6-21' 20 <br /> SB-6-26' 70 <br />' MW-513-25' 1,000 <br /> MW-6-19' 1 9 <br /> Average = 263 64 mg/Kg <br /> I (Average = 2636 4 mg/Kg 1 10) i 57M <br /> 1 <br /> 1 <br />