The table on page 50 shows the action levels After any control changes are made, testing of the water system for legionella is then advised. BIRMINGHAM — In Water Technology’s September article, “Preventing Legionnaires’ disease and other waterborne bacteria through long-term secondary water treatment,” Tory Schira, a contributing author writes about the increased legionella outbreaks, especially in drinking water systems, and how this is causing facility … As a responsible organisation we have robust Business Continuity Plans in place to ensure business as usual whatever the circumstance. Rest assured that we are making every effort to prevent or minimise any impact on our services during this public health challenge.Getting rid of Legionella in Building Water SystemsIn this article the water safety specialists at Legionella Control International look at how to get rid of legionella in building water systems to keep the water clean and people safe from harm.The article gives guidance on what to do, who should be responsible for managing the process, and what you can do to get rid of the risks or at least control them to within safe limits.Legionella Control International is rated 5 out of 5 stars (based on 135 customer reviews)Legionella FAQ – What Landlords Need to Know About Legionella To ensure that they remain effective their application will need suitable assessment as part of the overall water treatment programme including proper installation, maintenance and monitoring.HSE aims to reduce work-related death, injury and ill health. The bacteria are dormant below 20°C and do not survive above 60°C. The bacteria multiply where temperatures are between 20-45°C and nutrients are available. The frequency should be determined by level of risk, in accordance with the risk assessment. In response to Covid-19, our aim is to ensure continued operations whilst protecting both our people and our clients. Regular inspection of hot water systems should be done so early action can be taken if necessary. Legionella bacteria is commonly found in water. Legionella Bacteria can be killed using a UV System.

Such droplets can be created, for example, by: hot and cold water outlets; atom… Follow your water management program, document activities, and promptly intervene when unplanned program deviations arise. The primary method used to control the risk from Legionella is water temperature control. Cold-water storage tanks should be cleaned periodically and water should be drained from hot water cylinders to check for debris or signs of corrosion.
To reduce the risk you should remove dead legs/dead ends in pipe-work, flush out infrequently used outlets (including showerheads and taps) at least weekly and clean and de-scale shower heads and hoses at least quarterly. Instead, the key to preventing Legionnaires’ disease is to make sure that building owners and managers maintain building water systems in order to reduce the risk of Legionella growth and spread. Legionnaires’ disease is a potentially fatal type of pneumonia, contracted by inhaling airborne water droplets containing viable Legionella bacteria. Water Management Programs There are no vaccines that can prevent Legionnaires’ disease.

No matter how big or small your business is, or how complex or simple your building water systems are, it is vital to make sure Legionella bacteria are not given a chance to multiply and spread – the consequences can be very serious.While larger water systems tend to be more complex and therefore harder to maintain, even the smallest system can be compromised with legionella if the correct steps are not taken to prevent its growth.If you are responsible for maintaining the water systems in use in your business premises, there is plenty you can do to make sure you prevent the growth of dangerous waterborne bacteria and so keep people safe from the effects of diseases such as Legionnaires’.The process of getting rid of the legionella risks in your water systems should always start with a A legionella risk assessment will highlight any potential dangers and give you guidance on the steps that should be taken to reduce those risks to keep people safe.To give you a better appreciation of your water systems you should have a full schematic or plan of the system, with every outlet, every pipe, and every other feature it includes.This schematic plan is a simple representation of your water systems and forms a blueprint to help you spot where the legionella risks may be higher than normal.It might help you identify a tap or shower head that is rarely used, these are often called little used outlets and can also lead to stagnation of the water – a situation that needs to be avoided.Once you’ve identified any legionella risks, steps can then be taken to minimise or even get rid of the risks associated with such problem areas.Disused pipes should be removed if they are no longer in use, as they encourage stagnant water and the growth of Similarly, water outlets that are rarely used make it far more likely stagnant water will sit inside the system and create a problem.To reduce the problems associated with low water flow or even stagnation, regular flushing is really important – flushing can eliminate stagnant water issues especially if it is built into the legionella control and maintenance plan.The responsible person for legionella is an important risk management role and the appointed person should be competent and able to do the job required of them.Competence to do the job properly requires a combination of experience and knowledge which likely requires training, along with regular refresher courses to make sure they are fully aware of their role and how to perform it.Seeking expert advice on alterations to the water systems, new pipework or other parts of the system is important to help reduce the legionella risk factors there as well.A review of the engineering plans before construction can help spot potential legionella issues so they can be designed out, saving you money and giving you a safer water system.Controlling water temperatures is important as it is a great way of controlling legionella in your water systems.As a rule of thumb, the cold water should be kept cold (below 20Depending on the building and its usage, water temperature control may also involve installing A good example would be in care homes or hospitals, where some residents or patients may be at greater risk of scalding by hot water.It is important to remember that you must ensure cold water is kept below 20 degrees Celsius.Meanwhile, hot water storage should be maintained at 60 degrees Celsius or above.Water coming from hot outlets should be at 50 degrees Celsius (50 in healthcare), thus ensuring the water supply is either above or below the ideal temperatures that legionella would flourish in.A good legionella maintenance, cleaning and disinfection programme should cover the entire water system, with regular treatments given to maintain the quality of the water within the system.Disinfecting the system keeps the Legionella bacteria at minimal levels, preventing it from establishing itself and spreading throughout the system.This treatment also helps to minimise the amount of biofilm throughout, along with getting rid of any dead legs or disused outlets as mentioned earlier.In many cases, a water filtration system can also help reduce the chances of legionella taking hold.Since water comes into the system from external sources, these sources could potentially carry bacteria in with them, along with debris and other elements that could encourage the growth of biofilm.By filtering the water, many other risk factors can be removed prior to using the water in any manner.Water quality testing, especially for legionella should be recorded as well, to provide a full record of all steps taken to maintain the system and keep it safe.Water testing can help you make sure the legionella control measures you are using are working as they should.By testing different points in the water system at regular intervals, you can be sure legionella is not secretly multiplying in one area, even when things look good elsewhere.Using an external company such as Legionella Control International to conduct legionella testing on your behalf is an excellent idea.You can be certain the tests are being conducted under the recommended conditions and at the correct intervals.If you were to do this on your own and you did not complete the tests correctly, you may believe your water system is fine when it isn’t.Getting rid of the risk of that is easy when you seek an expert company to handle that part of the process for you.It also removes the risk that legionella could go unnoticed and end up making people seriously ill – something no one would want to happen.Our teams of legionella specialists support business owners and those responsible for the control of waterborne pathogens in the workplace, helping them to protect their staff and others and so meet their health and safety obligations in this specialist area.We deliver expert legionella risk assessments, independent compliance auditing, training courses, expert witness support and other environmental risk management services that help keep people safe.Our response to Covid-19.

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