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...Dewatering is the removal of water from solid material or soil by wet classification centrifugation filtration similar liquid separation processes removing draining a riverbed construction site caisson mine shaft pumping evaporation this often done during development phase major project due to high table usually involves use pumps methods include well point deep and eductor systems equipment dewaters sludge generated ceramic manufacturing porcelain enamel fabrication metal plating finishing chemical processing steel mills paint pharmaceutical meat food grease septic haulers numerous other applications under certain conditions wellpoint system proves not only be an effective means but also economical one are particularly in stratified soils where draw down must achieved close bedrock features advantages ground control near surface dept up twenty feet b ability dewater stabilize fine silty c more when clay present at invert d install access with drill rigs impossible beneficial for depth...