This study evaluates the geological, hydrogeological and hydrological conditions at the I waste dump site of the Van municipality in eastern Anatolia, Turkey. A geological map and a three-dimensional view of the project site have prepared. All lithological units exposed at and near the dump site have been determined and their boundary relationships identified. Drainage basin characteristics of the dump site along with the water bearing properties of different lithological units have been assessed. For the rehabilitation of the existing dump site, material availability (clay as a liner, cap, and daily cover material; granular soil as a filter material) has been researched. Based on the geological, hydrogeological, morphological and hydrological conditions of the existing waste dump site, recommendations to minimize its environmental impact are presented.