Waterline’s DWS-HFC-1000PLUS two-stage treatment train can provide a final barrier of protection from the unknown micro-organisms with sanitary quick change and sealed cartridges. Stage 1 is WQA-certified STD 42 and 53 for aesthetic taste and odors from chlorines, fine filtration for removal of lead and cysts and high-capacity carbon block for reduction of VOCs, MTBEs and TTHMs. Stage 2 charged membrane filtration was tested by the U.S. EPA with live organisms for reduction of bacteria, virus and protozoan cysts.