This unit of competency describes the skills required to monitor, identify and resolve water quality problems in water distribution systems. The ability to identify and investigate operational problems, collect samples and analyse technical information, communicate effectively with stakeholders and to interpret and apply incident management procedures is essential to performance.This unit applies to those working as field and operational staff with a specific responsibility for monitoring water quality and responding to issues affecting water quality in distribution systems.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, particularly those related to WHS.Those undertaking this unit would work under indirect supervision, while performing routine tasks, in a familiar context, ensuring minimum damage to the environment. No licensing, legislative or certification requirements apply to unit at the time of publication.