Legionella Risk Assessments

The approved code of practice L8 ‘Legionnaires’ Disease – The Control of Legionella bacteria in water systems’ requires that formal risk assessments are completed on all water systems. i.e. the determination of the likelihood of a legionella outbreak occuring at the premises.

Once completed the risk assessment and written scheme should enable management of the water system by your company to minimise the risk of a legionella outbreak occurring at your premises.

Planning and management systems should be robust enough to ensure that water systems are maintained in a satisfactory condition and minimise the risk of legionnaires disease.

All legionella risk assessments should be completed by a person who can actively demonstrate competency.

Our legionella risk assessment comprises of:

• Determination of risk to health from legionella bacteria, this is based on the findings during the site assessment
  
• Recommendations to implement measures to prevent or adequately control this risk
  
• Schematic of both the hot and cold water systems
  
• Determination of cold water supply
  
• Visual inspection of cold water storage cistern (if appropriate)
  
• Determination of hot water supply
  
• Inspection of hot water storage (if appropriate)
  
• Completion of temperature checks at all outlets
  
• Identification of means of creating and dispersing breathable droplets

The assessments should be reviewed regularly, at least every 2 years, and when changes to the system are made or the assessment is believed to be no longer valid.

Quality Assurance

• All legionella risk assessments are undertaken to meet the requirements set out in the HSE document, ACoP and Guidance, The Control of Legionella Bacteria in Water Systems, L8.
• Allconsultants have completed that competency training BS004 Legionellosis: Hazard Identification and Risk Assessment of Water Systems within Buildings
  

Go to the HSE website for further information about Legionella.

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