Life on earth would not be conceivable without water since, Water is the determined power of nature. Human, plants and creatures require a satisfactory and safe water supply. Deficient amount and hazardous nature of water supply is one of the significant difficulties on the planet, especially, in creating nations. At present, near a billion people living in the creating scene have no entrance to sufficient and safe water, primarily in sub-Saharan Africa. Ethiopia is positioning among the most reduced to available amount and quality water supply in Sub-Saharan Africa (UNICEF/, WHO 2012). As of now the Worlds water necessities to different reasons for existing is expanding at a disturbing rate in urban territories of both created and creating nations. The fundamental reasons are increment in urban populace development, increment of urbanization, mechanical development and extension, rural improvement and increment per-capita water utilization rate. What's more, it will diminish the nature of water regarding its Physico-concoction and organic qualities (Ahmad Zaharin et al., 2014).
As indicated by Ethiopia's Second Growth and Transformation Plan for water supply (GTP-2), (2015/16-2019/20) expressed that give urban access to water supply dependent on the thickness of the populace presented with least assistance level of 100 l/c/day for class 1 , 80 l/c/day for classification 2, 60 l/c/day for class 3, 50 l/c/day for classification 4, 40l/c/day for class 5 towns or urban communities inside 250m and with a funneled framework for 75 percent of the urban populace (Bank, World, 2017). Be that as it may, the Arbaminch town is classified under the classification 2; in any case, the water supply availability is still lower than the GTP-2.
The greater part of the water supplies for local reason in Arbaminch town and its encompassing zones are from underground water source for the most part from spring water due to its wealth and no need of inordinate treatment. Nonetheless, these days the quantity of populace is quickly expanding structure day year to year and furthermore increment in urbanization and industrialization similarly the need of sheltered and satisfactory water supply is additionally expanded at the same time, the nearby accessible water asset of Kulfo River are not used in a viable way to improve the availability of water supply and build up the work and financial principles of the encompassing occupants of Limat territory. Thusly, In request to meet the water market interest of the examination territory utilizing of accessible surface water, for example, Kulfo River as a wellspring of water for drinking reason after alluring treatment forms.
The land use land spread around Kulfo waterway catchment change now and again because of increment in populace in the Urban and rustic territories, horticultural extension and increment in mechanical enacts and it may be increment the possibility of presentation of farming and modern toxins in to the stream water that may influence the human wellbeing and condition. So that, to forestall the human medical issues examination of the nature of the water in Kulfo River and propose the water treatment unit required to meet the drinking water quality standard is the most significant and need issue. \nIn this way, limat kebelle will be utilize the accessible surface water of Kulfo River as a wellspring of water for residential reason with fitting surface water treatment prerequisite. As a rule the nature of treated drinking water will be totally liberated from pathogenic microorganisms, clear, stylishly alluring, low turbidity and shading and meet inside the suggested passable constraint of water quality norms.