GIS-technology of Water Drainage System (WDS) Modernization in Ukrainian City with Rugged Terrain

GIS-technology of water-drainage-system modernization in Ukrainian city with rugged terrain, has been developed. The directions of modernization municipal sanitary sewer system for carrying waste are proposed. These are: the decentralization of the drainage system (1), the use of local treatment facilities (2) and of higher aquatic vegetation for additional treatment (3). The transition from a pressure network to a non-pressure network is proposed to be carried out by replacing the sewage pumping station (SPS) with a local treatment plant. If necessary to increase the self-cleaning capacity of small rivers that receive domestic wastewater and storm drains with surface runoff, cascades of simple dams from bio fouling materials can be created on them. The 3D mathematico-cartographical model of the city houscommunal services has been developed, which allows making decisions based on geostatistical analysis. The suitability of model is checked by the RR criterion.