This unit describes the skills required to operate and control activated sludge processes and to measure and report on system performance and process quality control. The ability to identify faults, determine and apply technical adjustments and conduct chemical dosing procedures is essential to performance.This unit applies to those working as operational staff with a specific responsibility for wastewater activated sludge in treatment plants.The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to. Those undertaking this unit would work under supervision, performing routine tasks within a familiar context.No licensing, legislative or certification requirements apply to unit at the time of publication.