technique) (c) Evaluate the movement of a pollutant through a soil column (vadose zone) for a semipermeable soil material using simulations already in use in AQUASIM, ASPEN or other programmes. We are assuming the soil is fully saturated with insignificant verticle flow. We start with a loading of 100g/d from the top with a dispersion coefficient of 1m2/d. (45 pts )