Beginner- Watch videos and respond. Background: Groundwater contaminants move through groundwater systems because of a number of processes. Watch videos on “Transport processes” under education video and explain the relative importance of the different processes that control the fate and transport of contaminants in a real-world aquifer.

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Intermediate to Advanced - Numerical aspects of groundwater modeling. Background: Real-world contaminant transport problems are often complex beyond the assumptions of analytical solutions, so numerical solutions of the transport equation are often utilized. But when comparing simple numerical solutions to exact analytical solution, an extra dispersion (or spreading) of the contaminants is observed in the numerical solution. This is called numerical dispersion or `numerical dilution'.

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