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CALCULATION OF HYDROCARBON MASS ADSORBED TO SOIL <br /> Time Oil Company,Property No 04-049 <br /> 14000 East Highway 88 <br /> Lockeford,CA July 30, 1998 <br /> Area and concentrations based on Table 3,Figures 5-6,and attached figure <br /> P = A t� x H t x sort—density lbs x kg x X mg x lb � <br /> (f } {f} _ ft' 2 205(lbs) kg 453,592(mg)� <br /> Area I Area 2 Area 3 Area 4a Area 4b <br /> CONTAMINANT TPHg TPHg TPHg TPHg - TPHg <br /> X-CONTAMINANT CONCENTRATION(mg/kg) = 5,000 2,000 250 1,000 5 <br /> D-AVERAGE SOIL DENSITY(lbs/ft^3) = 129 129 129 129 129 <br /> A-IMPACTED AREA(ft-2) = 2,800 1,400 4,300 400 400 <br /> H-HEIGTH OF IMPACTED AREA(ft) = 10 -- 10 _ 10_ 25 40 <br /> (2_5 -735) (25 - 35) (25 -35) (35 -60) (60 - 100) <br /> t <br /> P-POUNDS OF CONTAMINANT(lbs) = 18,057 _3,611 —1,387 1,290_ 10 <br /> I <br /> Estimated Total Mass of Adsorbed Hydrocarbons 24,355 pounds (12,000 to 36,000) <br /> Estimated Volume of Adsorbed Hydrocarbons 3,479 gallons (1,700 to 5,100) <br /> CALCULATION OF HYDROCARBON MASS DISSOLVED IN GROUNDWATER <br /> Time Oil Company,Property No 04-049 <br /> 14000 East Highway 88 <br /> Lockeford,CA July 30, 1998 <br /> Area for calculation based on Table 2 and attached figure <br />' 7 481(gallons) 3 785(liters) mg� lb <br /> P = A(ft 2)xH(ft)xNx <br /> x xX x <br /> ft3 gallon liter 453,592(mg) <br /> Area 1 Area 2 Area 3 <br /> CONTAMINANT TPHg_ TPHg TPHg <br /> X-CONTAMINANT CONCENTRATION(mg/L) = 350 25 025 <br /> N-POROSITY(%) = 038 038 038 <br /> A- IMPACTED AREA(ft-2) = 2,800 _ 22,500 21,000 <br /> H-HEIGHT OF IMPACTED AREA(ft) = 10 10 I0__ <br /> P-POUNDS OF CONTAMINANT(lbs) = 2325 1334 125 <br /> Estimated Total Mass of Dissolved Hydrocarbons 3784 pounds (19 to 56) <br /> Estimated Volume of Dissolved Hydrocarbons 541 gallons (2 5 to 7 5) <br /> areamass wk4 — - - - -- <br />