ASSESSMENT OF THE WATER SUPPLY DISTRIBUTION NETWORK OF DAMBOYA TOWN IN SNNPR, ETHIOPIA

Abstract

Water is the most basic requirement for survival; everyone in the world has the right to safe drinking water and Intermittent water distribution is a vital problem in many water systems in developing countries including Ethiopia. However, water supplies in Damboya town have been disrupted regularly for days to weeks. As a result, this study was carried out to evaluate Dam boya town's existing water supply infrastructure, which is located in the Kembata Tembaro Zone of Ethiopia's SNNP Regional State. Moreover, this study was approved to examine the residential water coverage and loss, compare total water supply and demand, and hydraulic performance of the water distribution system using modeling techniques using water Gem's10.v1, and recommend performance gaps and possible system remedial solutions. Inter views with relevant Damboya water company staff provided the basis for this research. Other supporting data was gathered from a variety of sources, including design documents, non government groups, and numerous websites. According to the analysis, the town's water supply coverage was 32.4 percent, and the town's water loss was 21.15 percent of total water produc tion. The current total domestic water demand in town was 436.41.m3 /day and the average per capita domestic water consumption was 16.23 l/c/day. Hence, this result indicates there is a gap between demand and supply. Simulation results for maximum and minimum pressure and velocity in different scenarios were used as a base tool to evaluate the hydraulic perfor mance. Modeling findings demonstrated a violation of maximum and minimum pressure and velocity constraints at numerous connectors and pipelines. However, rehabilitating and im proving the water distribution system's capacities, as well as establishing a pressure zone, installing pressure control valves, and drilling additional boreholes, are critical.