Legionella Risk Assessment

A Legionella Risk Assessment must be done every year, this is legally binding under the Health & Safety Act. For Legionella Risk Assessments.

Aquachem use an in house Risk Assessor complying with and conforming to all National Guidelines, providing you with precise and prompt recommendations tailored for your individual site.

What is Legionella?

Legionella pneumophila is a thin, aerobic, pleomorphic, flagellated, non-spore-forming, gram negative bacterium of the genus Legionella.  L. pneumophila is the primary human pathogenic bacterium in this group and causes Legionnaire’ Disease, also known as legionellosis.

In nature, L. pneumophila infects freshwater and soil and is generally harmless in the natural world. However, when humans collect and store water in an artificial environment, such as a water storage tank, Legionella bacteria can grow.  If a person inhales this aerobic bacterium it can cause that person to contract Legionnaires’ Disease.

 What is Legionnaires’ disease?

Legionnaires’ Disease, also known as legionellosis, is a form of atypical pneumonia caused by any type of Legionella bacteria. Signs and symptoms include cough, shortness of breath, high fever, muscle pains, and headaches. It is a serious illness and is life threatening.

AquaChem’ s extensive range of technically advanced closed-circuit water treatment chemicals have been developed for use with a wide range of chilled water, closed cooling and heating systems ranging from low to high pressure systems.

Treatment chemicals are designed to protect multi-metal systems including those containing aluminium, an amphoteric metal which means that it can corrode under high and low PH’s.

Our quality chemicals will prevent the problems associated with this type of plant such as scale, corrosion, sludge formation and microbiological fouling to ensure that each system operates at maximum efficiency while extending equipment life and lowering maintenance costs.

Legionella can appear in:

  • Water systems incorporating a cooling tower.
  • Water systems incorporating an evaporative condenser.
  • Hot and cold-water systems.
  • Spa pools.
  • Natural thermal springs and their distribution systems.
  • Respiratory and other therapy equipment.
  • Dental chair unit waterlines.
  • Fountains/sprinklers.
  • Water-cooled machine tools.
  • Vehicle washes.
  • Potting compost/soil in warmer climates.

Those at Risk of Legionella:

  • People over 40 years of age.
  • Those with excessive alcohol intake. Immunocompromised organ transplant patients, patients with a compromised or weak immune system, the elderly, children and those receiving systemic steroids. Patients with chronic underlying disease such as diabetes mellitus, congestive heart failure, chronic obstructive pulmonary disease and chronic liver failure are also high risk.
  • Guidelines for the control of Legionellosis is covered under the 2009 Guidelines

Risk Assessment’s carried out by AquaChem:

In Ireland, under occupational health and safety legislation there is a legal obligation on employers to carry out a risk assessment in relation to Legionella prevention and control in the workplace and where a risk are identified the appropriate control measures should be put in place and a risk management plan adopted.

The Risk Assessment

The LRA report will illustrate the risks in the workplace in an informative yet easy to understand format, our process is outlined below:

  • We will come on site and make sure a Duty Holder has been appointed,
  • We will check all current paperwork and certificates,
  • A thorough inspection of the water system will take place, depending on the size this will take from 4 hours – 2 days,

The risk assessment will be prepared and consist of:

  • The detailed report including images and our recommendations on each point
  • A strategy for the premises outlining weekly / monthly tasks which the Duty Holder will be required to carry out (i.e temperature checking)
  • Information on risks and responsibilities

While a Legionella Risk Assessment is a vital document for your business, it is also important to ensure that weekly / monthly records are maintained as these will be critical should anything happen at your place of business.

A risk assessment is carried out specifically for each building on an individual basis