These checklists are designed to help the 'responsible person' to audit the arrangements in place to control legionella in the water systems in your premises. It also checks the knowledge of those who play a role in controlling the risks from the system, for example water treatment contractors.

Using the system checklists requires you to carry out both a physical inspection of the system as well as examining the management procedures and paperwork in place. The checklists only cover the two main risk systems, cooling towers and hot and cold water services.