Comprehensive Legionella and water hygiene risk assessments carried out on all water systems including: –

  • Evaporative Cooling Systems (cooling towers, evaporative condensers, adiabatic coolers and any other form of evaporative cooling)
  • Industrial process systems (includes any other type of water system not included in the other categories)
  • Domestic water systems

All assessments begin with an in-depth survey of all water systems and audit of all record keeping systems.

A continuous dialogue is maintained with the client throughout to ensure all systems are captured and adequate control systems are in place.

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Legionella risk assessments are evaluations conducted to identify and manage the risk of Legionella bacteria proliferation in water systems. Legionella is a pathogenic bacterium responsible for causing Legionnaires’ disease, a severe form of pneumonia, and Pontiac fever, a milder flu-like illness. These bacteria can multiply in water systems such as cooling towers, hot and cold-water systems, spa pools, and other environments where water is stored or circulated.

The purpose of a Legionella risk assessment is to:

1. Identify potential sources of Legionella bacteria in the water system.
2. Assess the likelihood of Legionella growth and spread within the system.
3. Evaluate potential exposure points to humans, including employees, residents, or the general public.
4. Implement control measures to minimise or eliminate the risk of Legionella proliferation.
5. Create a comprehensive management plan to ensure ongoing monitoring and prevention.

Legionella risk assessments are crucial for various establishments, including hospitals, hotels, commercial buildings, public facilities, and industrial sites, where water systems could provide a suitable environment for the bacteria to grow.

The assessment process typically involves the following steps:

1. System Inspection: A qualified assessor inspects the water systems, identifies potential sources of Legionella, and assesses the condition of the systems.

2. Hazard Analysis: The assessor analyses the potential risks associated with each water system and identifies areas where Legionella bacteria may thrive.

3. Risk Evaluation: The likelihood of Legionella growth and potential exposure risks are evaluated, taking into account factors such as water temperature, stagnation, presence of nutrients, and system design.

4. Control Measures: Based on the assessment findings, appropriate control measures are recommended to reduce or eliminate the identified risks. These measures may include temperature control, water treatment, cleaning and disinfection, and periodic monitoring.

5. Management Plan: A comprehensive Legionella management plan is developed, which includes regular monitoring, maintenance procedures, responsibilities of personnel, and contingency plans in case of any issues.

6. Review and Update: Legionella risk assessments should be regularly reviewed and updated to ensure ongoing effectiveness and compliance with regulations and guidelines.

It’s important to note that Legionella risk assessments should be carried out by trained and competent professionals who have knowledge and experience in water systems and Legionella control measures. Additionally, there may be specific regulations and guidelines in different regions or countries that need to be followed for conducting these assessments.