Legionella - identify what is Legionella and why is it harmful. - understand the origins of Legionella and the factors which allow it to grow in man-made water systems. - identify the main conditions that exist for Legionella infection and how to control these risks. - understand how to carry out Legionella control regimes and keep required records. - understand and be aware of the legal requirements, approved codes of practice and guidance. COSHH - understand how substances should be managed on HCC premises and during HCC activities. - know where to find information about substances and how to use it. - decide which substances require a COSHH assessment. - carry out a COSHH assessment for a hazardous substance.