UBWA brings water in from the North Umpqua river through a series of pumps. We inject a disinfectant called Sodium Hypochlorite and we add Aluminum Chlorohydrate to remove dissolved organic material from the water. Using both of these products assist us in cleaning up the water prior to the filtration process. The water is filtered through UltraFiltration Membranes that have a nominal pore size of .02 microns.