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Legionnaires Disease is a potentially fatal form of pneumonia. To assist managers and building maintenance engineers, we publish this simple guide to the basic requirements for complying with the current Guidance within L8. The requirement to undertake risk assessments on all water systems was included in the HSC Approved Code of Practice dating from the early 1990s. There are still sites and premises that have chosen to ignore this, or are not aware of this requirement, and it is perhaps fortunate that there have not been even more outbreaks of Legionnaires’ Disease over the past years.

This booklet covers individual systems and includes cooling systems, cold water storage cisterns (tanks) and domestic hot water systems. It is intended to take the reader through the initial steps towards compliance but does not replace the need to carry out an adequate risk assessment of the system.

This guide distils the essential elements of the HSE Guidance L8 published in January 2001. It is hoped that the essential requirements listed below will be taken on board and that suitable control and monitoring regimes will be set up, covering whatever systems are present in the buildings.

A risk assessment if the first ESSENTIAL step towards the CONTROL and MANAGEMENT of Legionnaires’ Disease.