The environment of social services is characterized by a number of relationships among people and institutions that have a large impact on quality of life. Their aim is to provide social services and create conditions for meeting the basic needs of people. Aging is a natural process of development which can not be avoided. The aging of population has become a phenomenon of our times and concerns everyone, without exception. Efforts to extend the period of life with general ability to work and realization of the fact, that it is we ourselves who are responsible for maintaining our own physical and mental health and work performance as long as possible, should become part of the moral profile of each member of society. The demographic development still confirms the increasing age of the population. Dependency on help of another person increases with age. Given that the modern family is becoming less willing and able to care for their disabled members and that a modern society is increasingly demanding on job performance and social behaviour, the importance of the existence of homes for the elderly is increasing. The role of new social facilities will increase in the future and therefore it is appropriate to deal with emergencies and evacuations of residents living in social service facilities. The thesis concerns the topic of population protection tasks at the chosen home for the elderly with special focus on drinking water supplies. Need to evacuate the persons dependent on the help of others is a very difficult process for nursing staff and for intervening organs of the integrated rescue system. The theoretical part deals with the issues of old age and the aging process, protection of the population, evacuations and explaining the key concepts related to the issues. We attempt to list the most important factors influencing age and we explain the process of aging and focus on factors affecting behaviour in emergency events. The theoretical part is divided into chapters dealing with topics that serve as a theoretical basis for the practical part, e.g. the protection of the population, drinking water and its importance for people, social service facilities and the issue of old age. In determining preparedness for an emergency event and evacuation of the facility associated with the accommodation, technique of standardized interview was used in the practical part of the study. This method can provide us with the results easily, quickly and in an organized manner. Research respondents were the employees of social welfare facilities in Veselí nad Lužnicí. The interviews were conducted with a total of 21 staff, of whom 19 were women and 2 men. Standardized interview technique allowed the personal approach and helped clarify any confusion which occurred during the interviews. Individual responses were manually recorded with the approval of the respondents..