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API DSS Data Requirements r-`4PIDSS%9-7780.S" 08/30/95 09:4' <br /> The following chemicals were selectee <br /> Benzene <br /> Ethylbenzene <br /> Naphthalene <br /> Toluene <br /> Xylene <br /> Data for Fate and Transport Models <br /> Sesoll Model- Deterministic <br /> Model Control Parameters <br /> Simulation Time(max=100)[years] 50 <br /> Number of soil layers 2 <br /> Sublayers in layer 1 1 <br /> Sublayers in layer 2 1 <br /> Volatile emissions: No <br /> Climate Parameters <br /> Surface Temperature[C] 16 <br /> Evapotranspiration[cm/day] 0.001 <br /> Precipitation[cm/yr] 35 <br /> Storm duration[days] 2 <br /> Number of storms[yr'-1] 6 <br /> Length of Rainy Season[months] 5 <br /> Soil Column Data <br /> Effective porosity[-] 0.25 <br /> Dry Wt.Soil Bulk Density[g/cmA3] 1.65 <br /> X-dimension of the source[m] 7 <br /> Y-dimension of the source[m] 7 <br /> Layer 1 <br /> Thickness of Layer[m] 7.62 <br /> Intrinsic Permeability[cmA2] 1e-10 <br /> Fraction Organic Carbon[-] 0.05 <br /> Benzene Load[kg] 0 <br /> Ethylbenzene Load[kg] 0.28 <br /> Naphthalene Load[kg] 80 <br /> Toluene Load[kg] 0.026 <br /> Xylene Load[kg] 5.6 <br /> Layer 2 <br /> Thickness of Layer[m] 6.1 <br /> Intrinsic Permeability[cmA2] 1e-8 <br /> Fraction Organic Carbon[-] 0.05 <br /> Benzene Load[kg] 0' <br /> Ethylbenzene Load[kg] 0 <br /> Naphthalene Load[kg] 0 <br /> Toluene Load[kg] 0 <br /> Xylene Load[kg] 0.019 <br /> Sesoll Chemical Specific Parameters <br /> Benzene <br /> Solubility[mg/1] 1750 <br /> Diffusion Coeff. in Air(cmA2/s] 0.087 <br /> Henrys Constant[Atm/mA3/mol] 2.49E-01 <br /> OC/u m1 <br /> Koc[ug/g g/ ] 83 <br /> Degradation Rate Constant in Unsaturated Zc 0.0E+00s] <br /> Vapor Pressure[mmHg] 95.2 <br /> Ethylbenzene <br /> Solubility[mgll] 152 <br /> Diffusion Coeff. in Air[cmA2/s] 0.066 <br /> Henrys Constant[Atm/mAWmol] 2.87E-01 <br /> Koc[uglgOC/uglml] 1100 <br /> Degradation Rate Constant in Unsaturated Zc 0.00E+00] <br />