A rural water supply survey was conducted in 1981 to evaluate the rural water supply program. The survey was done in the province of Bali, in 2 sample areas, the regencies of Badung and Gianyar. The two regencies were similar in demographic characteristics and composition, and both had high prevalence of cholera or gastroenteric diseases, but had different methods of acquiring ground water sources. In general, the groundwater capacities of Badung were higher than that of Gianyar, and the results indicated were : a high correlation between the shallow well hand pump that were not in function with the loca-tion of the pump installation (private or community owned land). a high correlation between the depth of the shallow well hand pump that have been installed with the location of the pump (Badung and Gianyar). a high correlation between the reasoning of the shallow well hand pump that were not in function with the location of the pump (Badung and Gianyar) due to the degree pf abundance of water.