The process of dewatering is done to remove the residual water in the site before proceeding with any site work. It is a crucial process in order to seal penetrating of unnecessary water into the surface. Most of the time the process of dewatering is performed by using pumps to remove water from excavation site. It is done to take care of the lower water table that might be causing problems during excavations. Dewatering can also be known as the process of removing water from soil by wet classification. It is the process of lowering the water table level at around a particular location in the contract site.