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• Only fate and transport of dissolved phase contaminants are simulated (not <br /> ' appropriate for free product) <br /> Input Parameters <br /> Model Control Parameters <br /> Aquifer is infinitely wide <br /> Depth of Aquifer is 25 feet <br /> ' Instantaneous release <br /> 100 year simulation time (maximum available) <br /> ' Source Parameters <br /> Point source at x,y,z (0,0,0) <br /> Instantaneous chemical release based on the highest concentration detected in <br /> any of the wells during fourth quarter 1995 monitoring, an approximated plume <br /> area of 319 square meters, and a depth of 3 05 meters <br /> Benzene = 0 016 kg <br /> Toluene = 0 055 kg <br /> ' Ethylbenzene = 0 19 kg <br /> Xylene = 0 074 kg <br /> ' Media Parameters <br /> Effective porosity = 0 2 (calculated at 0 25 during aquifer testing) <br /> Hydraulic Conductivity 155 8 m/yr (based on aquifer testing) <br /> Hydraulic Gradient = 0 002 (measured during quarterly monitoring) <br /> ' Longitudinal dispersivity = 6 7 in (0 1 times length of flow path) <br /> Transverse dispersivity = 0 67 in (0 1 times longitudinal dispersivity) <br /> ' Vertical dispersivity = 0 34 in (0 5 times longitudinal dispersivity) <br /> Bulk density of soil - 176 g/cm' (based on sand/silt/clay standard - <br /> ' 1101b/ft') <br /> Fractional organic carbon <br /> ' content = 0 01 g/g (conservative estimate) <br /> Thickness of aquifer - 7 62 m (based on boring logs) <br /> ' <br /> 96R7 East Bay Municipal Utility Distnet <br /> 40429700 fcr Final Closure Report <br />