Abstract: A wastewater treatment system is provided for use in treating the sanitary and grey waste waters from individual homes in areas where subsurface disposal of these wastes is not feasible and where discharge of treated effluent to a body of surface water is permitted. All toilet wastes, bath and shower wastes, and kitchen wastewater can be treated by this process and system. These wastes are cleansed, disinfected and clarified prior to discharge to the receiving body of water. The system includes a septic tank, a dosing chamber, an enclosed sand filter, and a disinfection unit operatively connected to one another for progressive cleansing, clarification and disinfection of the wastewater.