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Saturated Sod Model <br /> mixture The saturated soil model checks the following equation for each chemical <br /> used in the model <br /> C = CT Pb (C-2a) <br /> '" PbKaF,, +Ow +O,KH <br /> Again, it is assumed that CT can be accounted for by summing the mass in the solid, <br /> liquid, and vapor phases (i a no residual is present) If the liquid phase concentration, <br /> CW, calculated with equation C-2a exceeds the effective solubility of the compound, <br /> then it is assumed that residual phase is present(and equation C-2a does not apply) <br /> The effective solubility is calculated from the following equation <br /> CTr MWTPH (C-3) <br /> S�� l J <br /> CTPH MWe <br /> where _ <br /> Sett - effective solubility for chemical i [mg/1] <br /> CT, = total concentration of chemical r in soil [mglkg] <br /> MWTpH = average molecular weight of hydrocarbon [g/mol] <br /> MW, = average molecular weight of component i [g/mol] <br /> CTPH = concentration of total petroleum hydrocarbons in soil <br /> [mfg] <br /> C-5 <br />