Topsoil from the dumping footprint will be stripped to a depth of approximately 50 cm (or as proper design) and stored in the topsoil stockpile;
A basal layer of NAF waste should be placed above the underdrains. The purpose of this basal layer would be to neutralise acid seepage from the Potential Acid Forming (PAF) and Acid Forming (AF) waste as it seeps through the basal layer;
The basal layer should be nominally have a minimum thickness of 1 m. If NAF waste is not available, then PAF-LC waste could be utilized;