Abstract
The amount of groundwater that is currently being used for domestic and non-domestic purposes in the basin is 17.8 million cubic meter. The net total amount of water that is actually available to recharge the groundwater circulation within the Lake Awassa catchment is 218.79 million cubic meter. Currently, 233 groundwater structures are found developed in different parts of the study area. Out of these 49 are non functional. Among the developed groundwater structures dominantly nonfunctional is hand dug wells, which comprises 29.55% of the total constructed hand dug wells. The hand dug wells are followed by shallow wells (25%), springs (19.75%) and boreholes (10%). Poor management of the constructed schemes, lack of awareness at community level, spare part problems, and construction problems are the major causes of the failure of the groundwater structures. Utilization of groundwater in the functional ones is not conducted on the basis of recommended values that were set based on the hydrogeological parameters during the development of the structures. Discharging hours are increased to satisfy the water demands of different users. Currently, groundwater is developed without groundwater management plan in uncoordinated manner by governmental and nongovernmental organizations and also privately.At present, the amount of natural recharge in the basin is more than the abstraction. The problem is not lack of water; it is rather absence of or poor management. This is mainly due to lack of efficient groundwater management organization at sub-basin level. Management of groundwater resources is crucial for better development and optimum utilization of the groundwater resources of the basin and to avoid any adverse effects. Therefore it is necessary to establish an efficient groundwater management organization that can conduct detailed groundwater management studies of the basin, follow the objectives of the national water resources management policy and also effectively implement. Keywords: Aquifer ; Ethiopia;Groundwater management; Hydrogeology;Lake Awsasa DOI: 10.7176/JEES/10-12-01 Publication date: December 31 st 2020
Highlights
Groundwater is one of the earth's most widely distributed natural resources
Used 2.1 Data Collection To achieve the objectives of this research work different data such as literatures, meteorological data, stream flow, maps, boreholes, shallow wells, hand-dug wells and spring inventory data have been collected from different sources
According to the survey conducted in the study area, groundwater is mainly used for domestic and industrial purposes
Summary
Groundwater is one of the earth's most widely distributed natural resources. It has been a source of water supply since the dawn of recorded history. Many great economic developments have been made possible through the use of groundwater. Groundwater represents a major source of water for drinking and industrial uses. It contributes a considerable share to irrigated agriculture. It is a unique resource, widely available, providing security against droughts and yet closely linked to surface water resources and the hydrological cycle. Uniform quality and temperature, relative turbidity and pollution free, minimal evaporation losses, and low cost of development are attributes making groundwater more attractive when compared to surface water. At the same time population and economic growth have led to ever more demands on the groundwater resources and in many countries there are already significant impacts due to inadequately-regulated groundwater pumping and/or from pollution due to inadequate management
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
