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The Horizontal Migration option is used to quickly enter a model for the horizontal migration of a contaminant from a waste mass to the site boundary. The model may contain a primary composite liner and an aquitard. In this option the primary composite liner can be composed of a geomembrane and a clay liner. If the geomembrane is present the leakage through the geomembrane is calculated using equations by Rowe et. al., 2004.
To create a Horizontal Migration model, select the Horizontal Migration button on the New Model form and then press the Ok button. The model will be created and can be edited as described in the section, Editing a Horizontal Migration Model below.