Legionella Water Testing & Analysis

Legionella Water Testing

We specialize in Legionella services to control the spread and risk of Legionnaires’ disease. These services include:

  • An initial ACOP l8 risk assessment
  • Legionella testing
  • Water tank cleaning
  • Legionella remedial services
  • Water monitoring/Remote monitoring
  • Chlorination services

When to Test for Legionella

According to the HSE guidelines “water samples should be analysed for Legionella periodically to demonstrate that bacteria counts are acceptable.” It is important for you to know as well that Legionella risk testing is not a replacement for a full risk assessment and should be used in conjunction with a risk assessment and other legionella control measures to mitigate the risks of infection in your water system. The HSE also states within the HSG274 pt2 legionella bacteria testing “should be carried out where there is doubt about the efficacy of the control regime or it is known that recommended temperatures, disinfectant concentrations or other precautions are not being consistently achieved throughout the system.” A full risk assessment would also register if there is a need for water samples to be taken.

Legionella Water Testing FAQs

Is Legionella testing a legal requirement?

No, legionella testing is not compulsory. The HSE’s Approved Code of Practice (ACoP L8) HSG 274, states that you are currently legally required to undertake a legionella risk assessment, but not water testing. However, whilst it is not compulsory, the HSG 274 confirms that the assessment may require or request that samples are taken for a variety of reasons and is recommended as part of your control measures.

Is testing for Legionella the same thing as an ACOP l8 risk assessment?

No, these are not the same thing and offer different benefits as part of an overall legionella control strategy. An L8 risk assessment is a legal requirement and helps to identify areas that pose a risk of legionella growth. Whereas legionella water testing is not a legal requirement but is the only way to detect the presence of legionella in the water system and therefore, plays a crucial role in legionella control. They are two different services for different purposes. Without a legionella risks assessment, legionella testing is carried out without the necessary information to undertake to test accurately.

How long do the results from the water samples take to come back?

Legionella water testing takes 14 days, this allows the bacteria to be cultivated and meet requirements set in place by UKAS for the correct bacteria testing conditions. Once the testing is completed the reports are produced by our team thereafter. Results are sent as soon as they become available and have been reviewed.

How much does testing & water sampling cost?

Legionella water testing starts from £80.00+VAT for a single bottle. There may be additional charges for site visits, delivery, postage, or specialist guidance or advice.

How long does a Legionella certificate last?

A legionella certificate is a phrase that is used regularly but it has little meaning. You are required to have a risks assessment in line with the Legionella Control Association Health and Safety at Work Act 1974, COSHH, Public Health England Management of Health and Safety at Work Act to name a few. This risks assessment is a live document that should be required periodically as required by law & the guidelines used to state an assessment was required every two years. After a legionella risks assessment, you should be issued with a risks assessment report, and after a legionella test, you should be issued with a legionella test sample report. Legionella is a bacteria that must be managed continuously, and therefore a one-off certificate is insufficient to prove compliance and control of the bacteria.

Do I need to test for legionella in my domestic water system?

If you are not making money from your property, e.g. letting a property, then the answer is no. There is currently no law to undertake legionella water testing in private domestic properties. However, if you provide accommodation or let a property then you are required to ensure you meet all Health and Safety at Work Act 1974.

Book an Engineer Visit

A qualified engineer will take legionella samples to British standards. From your legionella risk assessment they will identify the number of samples required and locations to take them from.

Scan the code