Hydrogeology is concerned with and focuses on the distribution of water in the Earth’s crust, its geological interaction within aquifers, its movement, and its presence in different environments. One of the parts of the hydrological cycle is groundwater, which is considered an integral part of it. It is part of a complex system and its distribution is more ambiguous on Earth. Injana aquifer is considered to be the important aquifer in this area for adequate quantity and quality of groundwater. Rainfall water is considered the most important source for groundwater aquifer recharge. The methods in the study area used for pumping test analysis are the Cooper-Jacob Method (CJM) for an unconfined aquifer and the Neuman Solution Method (NSM) was adopted in conducting pumping tests and recovery tests for three wells. The transmissivity values ranged from 109–121.7 m2/day. This range lies in high-transmissivity classification. Hydraulic conductivity was ranged from 2.18–2.029 m/day. This range is classified as low permeability. For specific yield values which ranged from 0.01–0.02, it is classified as an unconfined aquifer. There are no remarkable differences in the results of hydraulic parameters within the Injana aquifer because the unconfined values are convergent values.