Climate change has resulted in decreased levels of surface water while rural-urban migration has led to a continuous increase in water demand in Nairobi County, due to the increase in population, especially within the Karen-Langata area. As a result of the surface water struggling to fully meet the demands of the growing population, a number of residential settlements (mostly private) in the area have adapted the use of groundwater for domestic use via borehole and wells. The rate of ground water use in the area, as well as within Nairobi, has been tremendously increasing over the years, and according to the Ministry of Water and Irrigation, there are already more than two thousand five hundred (2500) boreholes in Nairobi. Due to more and more people within the Karen-Langata residential area, shifting towards ground water as a result of the increased water demand, groundwater has become one of the major sources of water that is used in households for domestic purposes in the area. Because of this, there has been an increase in the extraction of groundwater from the aquifer system within the area, via wells and boreholes. Therefore, this study is meant to deal with the assessment of the ground water potential in the area of study and the viability of groundwater extraction from the aquifer system, in order to determine if ground water abstraction within the residential area is suitable hydro-geologically, quantity-wise, and quality-wise (to see if the World Health Organisation (WHO) water quality guidelines are met)