Conduct Legionella Risk Assessment | A Legionella risk assessment is a detailed review of your water systems to pinpoint any areas where Legionella bacteria could grow and spread. Our role is to identify risk factors, assess their severity, and provide guidance on practical steps to mitigate or manage them.
Our Step-by-Step Legionella Risk Assessment Process
1. Surveying Your Water Systems
We begin by examining your water infrastructure – from hot and cold water tanks to pipework, outlets, cooling towers, and any other water-based equipment. We assess how the systems operate, how water flows, and where stagnation or temperature fluctuations might occur.
2. Identifying Risk Points
Next, we look for areas that could support Legionella growth, such as:
- Dead legs in pipework
- Infrequently used taps or showers
- Water temperatures between 20–45°C
- The presence of biofilm, scale, or sediment
- Aerosol-generating outlets like showers or spray taps
3. Understanding Exposure Risks
We determine who could be at risk – whether it’s staff, residents, customers, or visitors – and consider how frequently and for how long people might be exposed. We also pay close attention to vulnerable groups, including older people or those with weakened immune systems.
4. Evaluating the Overall Risk
We combine all findings to assess the level of risk. This includes the likelihood of Legionella growth, potential exposure, and the consequences of infection. Risks are prioritised to ensure high-risk areas are tackled first.
5. Implementing Control Measures
Once we’ve identified the risks, we help you put the right control measures in place. These might include:
- Keeping hot water above 60°C and cold water below 20°C
- Regular flushing of unused outlets
- Cleaning and descaling systems
- Removing dead legs from pipework
- Setting up a monitoring schedule for water temperatures and condition
We also help you develop a complete Legionella control scheme tailored to your property.
6. Detailed Documentation
We document every aspect of the Legionella risk assessment, including identified hazards, risk levels, and actions taken. All records of maintenance, testing, and system checks are kept in line with regulatory standards.
7. Ongoing Review and Support
Your assessment isn’t a one-time task. Green Water Services recommends reviewing your Legionella risk assessment at least every two years – or sooner if systems change or new risks emerge. We also provide routine monitoring services to ensure compliance and peace of mind.
Why Choose Green Water Services?
- Legal Compliance: Adhere to HSE regulations and guidance (L8, HSG274).
- Protect Health: Prevent potentially fatal Legionnaires’ disease outbreaks.
- Minimise Liability: Show due diligence and reduce the risk of legal action.
- Safeguard Assets: Responsible water management preserves property value and reputation.
Trust the Experts at Green Water Services
Whether you’re a landlord, business owner, or facilities manager, Green Water Services can help you conduct a thorough, compliant, and tailored Legionella risk assessment that meets your specific needs.
Get in touch today to book an assessment or to enquire about our Legionella Awareness Training for your team.
