Nowadays one of the most basic problems of sanitary engineering is to secure water-supply and sewage-disposal needs in the aspect of constantly changing environmental conditions and industrial development. The fulfillment of these tasks is related to requirement of efficient management of network assets, together with its maintenance, dimensioning of its components and the analysis of unplanned events and their consequences. GIS systems have become the irreplaceable tool in this field.
City or commune management requires dealing with problems of local range and performance of tasks determined by existing legal regulations. Most decisions in this scope are more or less related to spatial development.