12 February 2024,

This Water Management Legionella Log Book allows you to document your actions to prevent the growth of legionella bacteria in the water systems you are responsible for as an employer or landlord. Is starts in a logical way, from identifying the outlets that are rarely used, to daily, weekly, monthly, quarterly, and annual tests and checks. What is included: List of rarely used outlets Daily flushing of rarely used outlets Twice weekly flushing of rarely used outlets Weekly flushing of rarely used outlets Monthly cold-water temperature checks Monthly hot water temperature checks Outgoing monthly temperature checks of the hot & cold-water cylinders Return monthly temperature checks of the hot & cold-water cylinders Monthly temperature checks at the sentinel hot and cold-water outlets Quarterly descaling and cleaning of shower heads, tap aerators, and spray heads Annual thermostatic mixing valves maintenance Annual temperature testing of a representative number of hot and cold-water outlets Defects & Events Log Maintenance Log General Notes Adequate size A4 – 60 pages. The total number of pages for a building is 23 and this log book has been created to allow you document the flushing, and temperature checks carried out for two buildings, plus extra pages for notes at the end. If you are not responsible for two water systems, you can use this book for 2 years. Legionellosis is a collective term for diseases caused by legionella bacteria including the most serious Legionnaires’ disease, as well as the similar but less serious conditions of Pontiac fever and Lochgoilhead fever. People contract Legionnaires’ disease by inhaling small droplets of water (aerosols), suspended in the air, containing the bacteria. Certain conditions increase the risk from legionella if: the water temperature in all or some parts of the system may be between 20-45 °C, which is suitable for growth it is possible for breathable water droplets to be created and dispersed e.g. aerosol created by a cooling tower, or water outlets water is stored and/or re-circulated there are deposits that can support bacterial growth providing a source of nutrients for the organism e.g. rust, sludge, scale, organic matter and biofilms

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