In the past, most science and engineering computer models were done in DOS-based FORTRAN and BASIC languages. Solute transport models are no exception. The programs are generally not user friendly and may persuade users to avoid the programs. A Visual Basic, solute transport program was created to produce a friendlier environment to increase program use. The objectoriented program increases the ease in which the parameters are input and then output for analysis. The user may choose to peruse calculators or quickly experiment with various parameters. The basic mechanisms of the mass transport of solutes in groundwater are diffusion, advection, and mechanical dispersion. With analytical solutions available for solute transport, computer models are a convenient tool to illustrate the distribution of solute due to diffusion or advection-dispersion.