Legionella Risk Assessments

What is Legionella?

Legionella is a bacteria and the cause of Legionnaire’s disease, a potentially deadly form of pneumonia that results from the inhalation of contaminated water droplets.

Favourable conditions for Legionella growth include:

  • temperature of between 20-45 degrees Celsius
  • where water droplets (aerosols) are produced and dispersed
  • or where water is stored and/or recirculated – as in a domestic water storage tank
  • where ‘food’ for the organism exists, including rust, sludge, scale and biofilms

Given the conditions above, the bacteria will multiply and increase the exposure risk.


All landlords and employers have a duty of care to their tenants and employees when it comes to matters of health. That duty was codified initially by the Health and Safety at Work Act 1974 and has since been extended by the Control of Substances Hazardous to Health Regulations 2002.

There is a stringent requirement for landlords of commercial and domestic premises to assess the risks from exposure to Legionella to their tenants. The L8 Approved Code of Practice governs this area and was revised and republished in November 2013. In it, any business or other undertaking where water is used or stored and there is a reasonably foreseeable risk of exposure to Legionella bacteria is subject to a risk assessment requirement.

That requirement extends to all businesses, particularly those with particular ‘danger areas’, like Hotels with hot tubs, and those with vulnerable people, like GP surgeries.

You can see a more comprehensive breakdown of the rights and responsibilities here.

How can EPS help?

Our team at EPS are experienced with conducting Legionella risk assessments, ensuring that you meet your statutory obligations – whether you’re a surgery practice manager, business owners or property landlord.

Devon & Cornwall Legionella Specialists

We work with businesses across Devon and Cornwall to ensure they safely meet their obligations and safeguard the health of their employees and tenants.

Enquire now to find out how EPS can help you

Contact Us