The rehabilitation of the wild storage areas is done according to the project studies that emerged as the product of preliminary studies. The area can be improved with different alternative systems depending on its location, geological and hydrogeological condition, depth of garbage and the size of the pollution it creates. In the improvement of the storage area, the top surface must first be leveled and compacted. The lateral surface of the tank, which allows surface water flow, is inclined to maintain slope stability.
Impermeability of the top of the storage areas is done to disconnect the atmospheric conditions from the storage body. The impermeable cover layer should be constructed to require minimal maintenance, to allow drainage and to minimize the erosion of the cover. In the upper layer sample typical sections, mostly materials such as clay, composite material, bentonite, drainage gravel are found.
The last stage of closing the storage area is laying of soil layer. The thickness of the top cover layer changes according to the type of plant to be planted. If possible, the soil should be mixed with compost-type soil-improving materials, both to ensure dust and odor control and to help rehabilitate the site, in order to accelerate greening.