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i <br /> Table 6 <br /> Input Parameters and Assumptions <br /> MODFI_OW and MT3D Models <br /> ' Chapin Brothers Investments, Inc <br /> 1766 Monte Diablo Avenue <br /> Stockton, California <br /> ' Page 1 of 2 <br /> Input Parameter Value Units Source/Coments <br /> Simulation time unit Seconds NA <br /> Simulation flow type Steady-State NA <br /> ' Period 1 Length 3 1538E+08 Seconds 10 Years <br /> O <br /> flHorizontal hydraulic conductivity 4 OOE-05 ft/sec Units feet, kilograms,seconds <br /> O <br /> Transmissivity Calculated ftZ/sec <br /> Hyrdologic gradient 1 25E-02 ft/ft 0 0125(average value) <br /> Effective porosity 2 DOE-01 No units Estimated silty sand, DeGraff&Johnson, 1988 <br /> Solution Scheme Method of characteristics(MOC) <br /> ' Particle tracking algorithm First order Euler <br /> Maximum number of total moving 12500 NA <br /> particles(MXPART) <br /> Courant number(PERCEL) 075 NA Bennet&Zheng,Applied Contaminant Transport Modeling,2002 <br /> Concentration weighting factor <br /> Q (WD) 0 5 NA Bennet&Zheng,Applied Contaminant Transport Modeling 2002 <br /> 2 Negligible relative concentration <br /> 1 DOE-09 NA Default <br /> (V gradient(DCEPS) <br /> � Pattern for intitial placement of 1 NA <br /> rQ! particles(NPLANE) <br /> g Number of particles per cell in case <br /> of DCCELL<=DCEPS(NPL) 0 NA <br /> QNumber of particles per cell in case <br /> of DCCELL>DCEPS(NPH) 9 NA <br /> Minimum number of particles 0 NA <br /> allowed per cell(NPMIN) <br /> ' Maximum number of particles 16 NA <br /> allowed per cell(NPMAX) <br /> ' Multiplier for the particle mumber at 1 NA <br /> source cells(SRMULT) <br />