Legionella Risk Assessment

Is it complicated?

Our Legionella Risk Assessment surveys and reports and associated services are all designed to support clients in achieving full compliance to the HSE’s ACOP (L8) document, ‘The Control of Legionnaires Disease in Water Systems’. Furthermore, with simplified straightforward formats and no complicated jargon, our Legionella Risk Assessment survey and report services are designed to be easy for anyone to understand.

Our highly experienced Legionella Risk assessors are able to provide Legionella Risk Assessments to cover any building. Each Legionella Risk Assessment is individually drafted to be both site specific and client specific.

Complex Systems


More complex systems or premises may need to be surveyed and an asset register produced of all associated plant, strainers, pumps etc, as applicable and should include a system schematic showing all the layout of plant and equipment. Any redundant plant and equipment still connected or out of use should also be included.

This will give an overall plan of the systems in place and will show which systems will require to be assessed individually and as a whole.

Hydraclean’s Legionella Risk Assessments will include :
  • A Scored & banded risk assessment
  • A schematic interpretation of the systems
  • Review of management procedures
  • Statement of control
  • Preparation of a scheme to control the risk
  • Recommendations for remedial actions
  • Photographic Evidence

The Legionella Risk Assessment is a legal mandatory requirement and forms the basis of all Legionella compliance and monitoring works. Hydraclean’s highly skilled and technical Risk Assessors, Engineers and Hygienists can ensure that all aspects of the Risk Assessment and its findings can be taken care of giving you piece of mind.

Cooling Tower & Evaporative Condensors


Most companies which have a cooling tower or evaporative condenser will be familiar with the potential risks from the system from information provided by the manufacturer or installers. However, it is important to ensure that a site specific risk assessment is carried out and regularly reviewed and in particularly when any changes to the system occur or where any areas of the installation may be redundant or out of use. These stagnant areas could increase the risk of bio-film formation which can then contaminate the whole system and prove difficult to remove.

These systems usually require Water Treatment Services and are complex in nature and any Legionella Risk Assessment carried out should include all the information on the system as described under Complex Systems.