This paper demonstrates the significance and utility of Programmable Logic Control (PLC) in automated water supply system. PLC is the heart of automated water supply system, as it offers reduced water age, minimizing energy, costs and improved system operations without compromising operational reliability. The main aim of studying this paper is to give a particular amount of water for a particular period of a time by opening and closing a solenoid valve. This operation is done with the help of PLC ladder. In this case by knowing the position of water present in the tank with help of high and low level sensors we give supply. Implementation of PLC based water supply distribution system overcomes the manually based water supply, requirement of man power, as well as, reduces human error in the system. Further, if PLC based water supply distribution system has been implemented successfully in the society then large amount of water is saved and also resolves the problem of leakage detection