Groundwater is an important source of water supply in development. However, the quantity and quality of groundwater is largely affected in Ethiopia. The study objective will be to assess the groundwater potential in Jimma and Buno Bedele administrative zones. Primary and secondary data will be collected. Desk study, fieldwork, laboratory work will be applied. A groundwater flow model with MODFLOW will be developed. The integration of these elements will provide the mechanism to assess groundwater potential and exploitation.