Processes in which oxidation is followed by removal of suspended solids can effectively remove soluble iron and manganese from water. Three common processes for removing iron and manganese are: (1) aeration-filtration, (2) chlorination-filtration, and (3) potassium permanganate-manganese greensand filtration. This article describes these processes and presents results from a pilot study of chlorination-filtration. The costs for oxidants in chlorination-filtration are less than those for potassium permanganate-manganese greensand filtration.