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The Primary Liner (Subtitle D) Landfill option is used to quickly enter a landfill that may contain a leachate collection system, primary composite liner, aquitard, and aquifer. In this option the primary composite liner can be composed of a geomembrane and a primary liner. If the geomembrane is present the leakage through the geomembrane can be calculated using either equations by Rowe et. al., 2004; equations by Giroud et. al., 1992; or by specifying and equivalent hydraulic conductivity for the geomembrane.
To create a Primary Liner Landfill model, select the Primary Landfill 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 Primary Liner Landfill Model below.