Legionnaires Disease Risk Assessments

Legionnaires Disease Risk Assessments

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Landlords, health and safety building executives and site managers among others, will have carried out – at some time – a risk assessment for Legionnaires disease contaminating the water supply.

A water hygiene testing company will then have offered a remedial course of action to help you control any further risk from the disease spreading within the water supply system.

Pure Flow Solutions Ltd are water hygiene specialists who can carry out legionella disease assessments and put into place the corrective measures needed going forward.

What Does A Legionnaires Risk Assessment Involve?

During the entire process the temperature of the hot and cold water systems are fully monitored by the water hygiene testing company. Flow and stagnation is monitored too and the cold water storage tank is paid particularly close attention for risk.

The hot water storage tanks are closely looked at and a detailed report is issued on its current state. The report will include photographs, pipework maps and the level of risk assessment that legionnaires may be a danger to the water supply.  

Legionnaire’s disease in contracted by inhaling the aerosols of the disease’s bacteria. These can form on high pressure outlets within the water system. The disease is at its most virulent in poorly maintained water systems, cooling tanks and towers.

Once the assessment has taken place there will be a direct course of action needed to reduce the risk, should the report highlight any dangers. The main aim of the water hygiene testing company is to help businesses and organisations, including educational faculties, hospitals and firms within the private sector, maintain a clean, healthy and safe water supply.

What If Our Assessment Has Shown There to be a Risk?

A remedial course of action is necessary to prevent this risk becoming anything more than what it is following the assessment. This includes:

  • Total disinfection of the water supply
  • Work on the storage tanks including draining, if necessary and removing any possible contaminations.
  • Insulating pipework
  • Repair or refitting of water tank tops
  • Screens, ventilation grills and overflow pipes can be replaced or repaired to stifle the risk of contamination

These are just some of the measures that might be included in the course of action needed to take out the risk of legionnaires in the water supply. The actions would usually follow the risk assessment procedure, and like the remedial course of action, are undertaken by the water hygiene testing company.