This graduate thesis deals with the topic of waste management, with special reference to the rehabilitation of the municipal waste disposal site Košambra in Poreč, as one of six official municipal waste disposal sites in the Istrian County. In the introductory part of this work, the basic waste management concepts are clarified, with the review of regulations and documents that regulate this domain, the principles of waste management are briefly described and the parties involved in the management process itself are listed. Also, the issue of waste landfills and dump sites in the area of Istrian County has been elaborated, and the methods for their rehabilitation are explained in short. The condition of Košambra landfill before the rehabilitation is presented in detail, the documentation that was needed in the process of obtaining the building permit is listed and a review of landfill site rehabilitation is given during each phase.