Hamon UK

Legionella Control

Legislation Guidance for Evaporative Cooling Systems

Hamon UK Ltd is registered with the Legionella Control Association (LCA) and is required to comply with the LCA’s “The control of Legionella – A recommended Code of Conduct for Service Providers”.


We are registered with the LCA for the following service categories: 

            Category 4 – Cleaning & Disinfection Services

            Category 8 – Plant & Equipment Services


A copy of the LCA Code of Conduct and LCA Registration Certificate are available on the Hamon UK website for download (www.hamon.co.uk/en/downloads)


Equipment supplied by us is fully compliant with UK Regulations and Codes of Practice as far as relates to our contracted Scope of Supply, however the Client should ensure that to meet full compliance the following is also established :

  • Identification of the statutory Duty Holder
  • Appointment of responsible person and deputies
  • Notification to local authority of Evaporate Cooling System (as required under Notification of Cooling Towers and Evaporative Condensers Regulations 1992)
  • Completing, monitoring and periodic review of a Legionella Risk Assessment (as required under Management of Health & Safety at Work Regulations (MHSWR) 1999)
  • Written Procedure for the prevention and control of Legionella
  • Provision of system Operating Manuals & Drawings
  • Providing training to employees to operate the system effectively
  • Provision of a water treatment system with routine monitoring, sampling and reporting and a system for recording and reviewing of the results.
  • Maintenance, Cleaning & Disinfection as may be required from time-to-time or when access to the system is necessary.


Our Clients and Hamon UK Ltd have legal obligations under the Health & Safety at Work Act 1974 to protect workers and the wider public from harm as a result of our activities and operations. In relation to our scope of supply the following key regulations and ACOP’s must be complied with :

  • Management of Health & Safety at Work Regulations (MHSWR) 1999
    • a requirement to perform and record risk assessments in relation to specific hazards
  • Control of Substances Hazardous to Health Regulations (COSHH) 2002
    • a requirement to assess risks and develop control measures to prevent hazardous substances including biological agents from causing harm
  • Notification of Cooling Towers and Evaporative Condensers Regulations 1992
    • a requirement to advise a local authority in writing of the bringing-in or taking out of service of an evaporative cooling system
  • Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR) 2013
    • A requirement to report all instances of Legionnaires disease
  • Legionnaires’ disease: The control of Legionella bacteria in water systems (L8) (ACOP)


Further ‚ÄčGuidance to Legionella Control can be viewed and downloaded from the HSE's website from the links below :