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Legionella and Legionnaires' disease

water droplet

This site provides information on Legionella and how to control risks from exposure to Legionella from manmade water systems.

It will help employers and those with responsibility for the control of premises understand what their duties are and how to comply with health and safety law.

These webpages are currently under revision and will be updated to reference the revised L8 ACOP and HSG274 technical guidance.

What is Legionnaires' disease?

Events 2014

Dutyholder events in Newcastle, London and the Midlands.


Important information

Updated 18 February 2014 - For users and suppliers of water treatment systems that use elemental copper for legionella control ie copper ionisation systems, important information on the European Commission’s decision regarding the use of copper in legionella control.

Update on these systems

Are there Legionella risks in my workplace?

There may be a risk of exposure to Legionella if your workplace or premises has one of the following:

Risks in your workplace

Your duties – what you need to do

As an employer, or someone responsible for the control of premises e.g. a should ensure you do the following:

Your duties

Updated 2014-04-10