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RISC Manual Version 4.0 <br /> ,x ns.. �.: <br /> 3—rte, *` � fi <br /> tr€ k.. <br /> C:5 ASSUMPTIONS,,-ANO,LIMITATIONSQF ;_-TURATED1=`a <br /> _ ^s <br /> UMPTI <br /> r..i sr-ter-. '•t _ z-+—..., ' -. -.-x - -�`�" <br /> SO L MODEL 5 <br /> 1 The Saturated Soil model simulates the transport of dissolved phase <br /> contaminants only It does not simulate the movement of non-aqueous phase <br /> liquids(NAPLs) <br /> 2 The concentrations estimated by the model represent concentrations in the <br /> groundwater aquifer and not concentrations in a pumping well The <br /> concentrations in a pumping well would probably be lower than the <br /> concentrations predicted in the aquifer due to dilution effects <br /> 3 The aquifer is considered to be homogeneous and uniform <br /> 4 Water table fluctuations are used to calculate the relative contribution from <br /> infiltration and groundwater advection to source mass loss The water table <br /> fluctuations are assumed to have no influence on the flow field of the aquifer <br /> �C.6'',REFERENCES <br /> American Petroleum Institute Oil and Gas Industry Exploration and Production <br /> Wastes,API Document No 471-01-09 Washington,D C API, 1987 <br /> Galya, D P "A horizontal plan source model for ground-water transport " Ground <br /> Water 25 (1987) 733-739 <br /> Gelhar, L W , Mantoglou,A, Welty,C and Rehfeldt,K R, 1985 A review of field- <br /> scale physical solute transport processes in saturated and unsaturated porous <br /> media Electrical Power Research Institute (EPRI)Palo Alto, CA EA-4190, <br /> Res Prod 2485-5 <br /> Yeh, G T , 1981 AT123D Analytical Transient One-,Two-, and Three-dimensional <br /> Simulation of Waste Transport in the Aquifer System Oak Ridge National <br /> Laboratory Oak Ridge,TN <br /> C-8 <br />