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A program that enables users to simulate water movement and chemical transport in unsaturated soils by solving the Richards equation (water) and the convection-dispersion equation (chemicals)CResults can be displayed in graphical form for (1) water content, matric force potential, driving force, conductivity, and flux density of water versus distance or time, (2) concentration and flux density of a chemical as a function of distance or time, and (3) cumulative fluxes of water and chemical and total mass of chemical in the soil as a function of time. Results also can be output in tabular form.

Installation Instructions

Environmental Sciences | Research & Development
National Exposure Research Laboratory
Send questions or comments to the ESD Info Desk (contractor operated)

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