10.2190/LAEY-QV64-LLFP-ANE3 LAEYQV64LLFPANE3 4 A Comparison of Possible Model and Parameter Errors Associated with Solute Retardation in Groundwater Transport 353 369 20020509 20020509 20020509 20020509 LAEYQV64LLFPANE3.pdf http://baywood.metapress.com/link.asp?target=contribution&id=LAEYQV64LLFPANE3 4 L. G. Langley William F. McTernan Law Engineering Inc., Tulsa, Oklahoma Oklahoma State University, Stillwater, Oklahoma Groundwater solute transport models were developed which compared linear to one type of non-linear adsorption. Most traditional transport simulations rely upon linear adsorption in the form of solute retardance. While generally held to be appropriate at low solute concentrations, linear approximations are inadequate for some other applications. The subject work addressed this model uncertainty by comparing simulations completed assuming that Freundlich adsorption was appropriate with those developed under linear assumptions. 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