Management Advisory Group

Providing Information about the management of legionella and other harmful bacteria

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Providing information about the management of Legionella and other harmful bacteria.

The Legionella Management Advisory Group (LMAG) is a collective of experts that deal with the incidence and prevention of Legionella and other harmful bacteria in their profession.

The mission of the LMAG is to find the answer to the question “What do we need to do to minimise or eliminate the risk of Legionella?”

Our purpose is to process information and provide guidance on the best way forward using training, design, maintenance, repair and ongoing operational management of systems.

What is Legionnaires' Disease?

Legionnaires’ disease is a severe, often lethal, form
of pneumonia. It’s caused by the bacterium Legionella
pneumophila found in both potable and non-potable water systems Legionella pneumophila is spread by inhalation of contaminated droplets through activities such as showering. It mostly affects people with compromised immune systems, including cancer patients, people with chronic diseases and the elderly.

Our Focus Areas

LMAG facilitates the best practices for the prevention or mitigation of contamination with Legionella and other related pathogens within a reticulated water system.

Operational monitoring involves the measurement of specific parameters within the HCF’s water distribution system as set out in the WRMP.  The results of operational monitoring provide immediate indication that the quality of water is within the required specifications and can trigger immediate corrective actions where the results are not within the acceptable parameters.


There are many Codes, Australian Standards and Water Heater Manufacturers requirements to be considered and provided for, when a System is required to produce warm water (not exceeding 45°C at the outlet). It is a requirement that all storage water heating systems must be heated and kept at temperatures above 60°C.


Verification monitoring involves the analysis of water samples from your warm water system for the presence of Legionella. This is necessary to ensure that the controls that you have in place are operating effectively and to also detect the presence of Legionella before cases of Legionnaire’s disease occur. 


The success of any management system depends on knowing the facts and having the most relevant information at hand. Risk mitigation and duty of care go hand in hand in the world of Legionella management. Therefore knowing and understanding your cold and hot water infrastructure is paramount. If you know your system, you understand where the risks are.


Installation of water treatment into the water systems of hospitals and residential aged care can involve significant up front and ongoing costs for facility managers. Indeed, water treatment can also introduce new risks into the water system, if the choice of treatment is incorrect or if problems occur in the operation of the treatment process.


Legislation and Compliance play an important part when considering how to design and install water supply reticulation systems that can successfully manage legionella. The two key components include; Commissioning for New Installations and the Inspection Process.


Other Resources

LMAG is involved in research and testing. Here are more links to important information

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Become a member of LMAG is easy! We are a chapter of the BPAA. This association to the BPAA, allows easy membership and expanded knowledge-base  and benefits to a larger co-operation of members.

Membership is arranged via the BPAA website.

Once approved you will have all the information available at your fingertips.

Member Benefits

Extra Legionella Management resources and information along with support to design, implement and maintain Legionella Management plans.

We have an extensive knowledgebase of training information on Legionella and Legionella management members can access and attend training sessions.

Contact us

Please fill out the form and we will answer all of your questions.

Information on this and other pages of this website is provided in good faith for the benefit of the wider community.  It does not reflect the views of the members of theLMAG or the BPAA and in no way should it be considered an endorsement for any product, service or company.



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Login details provided on the BPAA Members Hub to gain access.


Get your question answered by the LMAG committee at their next meeting. Your answer will be posted on the Q+A page, following the next committee meeting.