Świnna Poręba reservoir was localized in 26.6 km of Skawa river. During the execution of the investment venture, which has lasted on and off from 1986, changes occurring in economy caused verification of main aims of the reservoir. An analysis of the changes of principles of the planned water management, caused by the changes of the main aims assigned for the multipurpose structure, as which the Świnna Poręba reservoir is considered, was carried out in the paper. An attempt of the initial assessment of the planned guidelines for water management of the reservoir being currently in construction in the aspect of tasks resulting from the Polish and European Union legislation was made. ...