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Legionella Risk Assessments

Updated: Sep 25, 2019

Under the Approved Code of Practice (ACOP) L8, to comply with their legal obligations, the Statutory Duty Holder should identify & assess the sources of risk.

Can I do a Risk Assessment myself?

If you feel (and can demonstrate) that you have the necessary skillset, you can do it yourself. You will need a good knowledge and understanding of the ACOP L8 and also the guidance provided within HSG274 parts 1, 2 and 3. Write your observations and recommendations down - and ensure all those involved with the control scheme are aware of the findings plus the task lists.

Do I need proper CAD type drawings?

Not absolutely necessary. If they are already done, then use them but clearly mark assets such as water storage tanks and hot water heaters. A schematic diagram is all that is needed. It can be a simplified but accurate illustration of the layout of the water system, including parts temporarily out of use.

It is an important tool as it allows any person who is not familiar with the system to understand quickly and easily their layout, without any specialised training or experience.

Schematics need to show what the systems comprise of, illustrating plant and equipment, including servicing and control valves, any components potentially relevant to the legionella

risk, including outlets, strainers and filters or parts that are out of use.


For expert help, please call 0208 432 3388 or email

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