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Iftav <br /> TABLE 4-2 <br /> DATA REQUIREMENTS FOR THE <br /> JURY UNSATURATED ZONE MODEL <br /> YELLOW FREIGHT, STOCKTON <br /> PARAMETER VALUE REFERENCE <br /> Simulation Time 70 years Based on average life expectancy <br /> Volumetric Water Content 0.20 unitless Brady 1974; USDA 1951 <br /> Effective Porosity 0.43 unitless Brady 1974; USDA 1951 <br /> Dry Weight Soil Bulk 1.5 g/cm3 Brady 1974; USDA 1951 <br /> Density <br /> Thickness of Incorporation 6.7 meter Site specific property <br /> Thickness of Soil Cover 9.75 meter Site specific property <br /> Depth of Unsaturated Zone 25.6 meter Site specific property <br /> 19.8 meter' <br /> i� <br /> Fraction Organic Carbon 0.001 Brady 1974; USDA 1951 <br /> Boundary Layer Thickness 0.001 cm Jury et al. 1983 <br /> Infiltration 2 cm/year Brady 1974; USDA 1951; NOAA <br /> 20 cm/year` 1991 <br /> X-dimension of the source 5 meters Site specific property <br /> Y-dimension of the source 5 meters Site specific property <br /> ' Depth of unsaturated zone considered both site measured and seasonal high groundwater. <br /> 2 Infiltration of 2 cm/year is for the occupational exposure scenarios with paving, 20 cm/year is for the <br /> residential scenarios with paving removed. <br /> SALDOYELLO.RPT May 4,1995 <br /> :r <br />