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' API DSS Data Requirements C:IAPIDSSIFILESIFCFINAL.SAV 10/14/96 15:15 <br /> The following chemicals were selected: <br /> Benzene <br /> Viene <br /> hylbenzene <br /> luene <br />' Data for Fate and Transport Models <br />' AT123D Model - Deterministic <br /> Model Control Parameters <br /> Infinite aquifer(y) Yes <br />' Infinite in depth No <br /> Type of source Instantaneous Release <br /> Simulation Time (years) 25 <br />' Media Specific Parameters <br /> Effective Porosity [-] 0.3 <br />' Hydraulic Conductivity [m/yr] 20000 <br /> Hydraulic Gradient[-] 0.003 <br /> Longitudinal Dispersivity [m] 10 <br /> Transverse Dispersivity [m] 3.3 <br />' Vertical Dispersivity [m] 0.33 <br /> Dry Wt. Soil Bulk Density [g/cm**3] 1.5 <br /> Fraction Organic Carbon [-] 0.01 <br /> Thickness of the aquifer[m] 10 <br /> Receptor Well Geometry <br /> X Coord - of Well [m] 8 <br /> Coord- of Well [m] 4 <br /> Coord -Top of Screen [m] 0 <br /> Z Coord - Bottom of Screen [m] 4 <br />' Source Geometry <br /> Length of source in X-dir [m] 8 <br />' Length of source in Y-dir [m] 8 <br /> Thickness of source in Z-dir[m] 2 <br /> I <br /> Amount of Each Chemical Released Instantaneously jkg] 1 g <br /> Benzene 6.4 e <br /> Ethylbenzene 20.5 <br /> Toluene 58.5 a <br />' Xylene 176 <br /> Chemical Specific Parameters for each chemical <br /> Benzene <br /> KOC [uglgOClug/ml] 83 <br /> Degradation Rate Constant in Saturated Zone 91 <br /> Molecular Diff Coeff[CMA 2/s] 9.80E-06 <br />' Ethylbenzene <br /> KOC juglgOClugimi] 1100 <br /> Degradation Rate Constant in Saturated Zone Q10 <br />' Molecular Diff Coeff[CMA 2/s] 6.80E-06 <br /> Toluene <br /> . <br /> KOC [ug/gOClug/ml] 300 <br /> Degradation Rate Constant in Saturated Zone Q10 <br /> Molecular Diff Coeff jcm"2/s] 8.60E-06 <br /> Xylene <br /> KOC [ug/gOClug/ml] 240 <br />' Degradation Rate Constant in Saturated Zone Q1Qfyg0 <br /> Molecular Diff Coeff[crn^2/s] 7.80E-06 <br />