ABSTRACT

The control of stormwater runoff is an essential component for an environmentally sound operation of a solid waste landfill. Typically, through the use of cover soils, steep side slopes, erosion controls, vegetation, and drainage systems, the amount of stormwater runoff is maximized, therefore, the amount of leachate generated and ultimately collected for treatment is minimized. Minimization of leachate quantities is generally favorably and typically incorporated into the operational procedure of a solid waste landfill. The design of the primary leachate collection system was divided into three tasks. The first task was to determine the thickness of the drainage layer. The second task was to determine the required transmissivity of this layer, and the last task was to design a geotextile separation between the collection sand layer and the operational sand layer. The landfill is a multi-cell industrial waste facility located in Ocean County, New Jersey. The facility will provide for disposal of a wastewater treatment plant sludge (WTPS).