Refinery Road Water Tank are containers that hold liquids, compressed  water which is not typically labeled or regulated as a storage tank) or mediums used for the short- or long-term storage of water or cold. The term can be used for reservoirs and for manufactured containers In the Pakistan the , storage tanks operate under no (or very little) pressure, distinguishing them from pressure vessels. Storage tanks are often cylindrical in shape, perpendicular to the ground with flat bottoms, and a fixed frangible or floating roof. There are usually many environmental regulations applied to the design and operation of storage tanks, often depending on the nature of the fluid contained within. Above ground storage tanks (AST) differ from underground (UST) storage tanks in the kinds of regulations that are applied.