Tonka has a complete line of surface water packaged treatment equipment for turbidity removal. The UTS (Unitized Treatment System) is a multi-stage gravity process with adjustable flocculation, tube settling, and filtration for turbidity removal. Tonka’s Clari-Filt™ is a two - stage pressurized surface water treatment system. This modular design, when used along with the Simul-Wash™ system eliminates the need for fine slot media retaining nozzles and conserves washwater.