Technical note provides guidance on designing an elevated storage tank. Elevated storage tanks are used to deliver water either through large distribution systems or through standpipes located at or near the source or at other communal watering points. Elevated storage tanks are used where ground storage tanks cannot be built due to lack of sufficient natural elevation and where standpipes are served from well with a windmill or other powered pumps. Elevated tanks can serve either a large community or a small group of families. Elevated tanks do not have as large a capacity as ground storage due to the need for a tower structure to support the tank.