Plumber or Maintenance worker

Is there a Water Risk Management Plan  (WRMP) for this facility?   If so start there.  If not there should be.  Click here for more information

There are a few things you and the Water Risk Management Team should know first to assist in the development of your WRMP.

1. Know your system i.e. plan of hot and cold water loop/plumbing systems.  Identify any redundant pipework,  deadlegs or area of low flow.

2.  Where else is water being used on this site.  i.e. air conditioning units,  ice machines, water fountains, dental chairs, eye washes, safety showers, clinical uses etc. 

3. IDENTIFY the plumbing risks in your system - using the information in your plumbing plans and how you use water (what you've obtained from Question one and two -This will form part of your Risk Management Plan.

4. Plan to ASSESS the plumbing risks identified in your system review. (Risks assessed as HIGH need to take priority)

5. Plan to  MITIGATE  the plumbing risks.

6.  Plan for how you are going to  VALIDATE the measures in your WRMP.


How do you get to know your system?

  • Obtain any "As Constructed" plans that are available
  • Physically identify where the water comes in.
  • Physically identify where the water flows to.
  • Map any changes that have been made that are not on the documented original plans. 
  • Obtain complete maintenance history
  • Gain an understand for hot water generation
  • Obtain historical water sample test results


Consider all of the risks present in the system,  the facility and the patients risk i.e. their susceptibility to infection (age & health status)

As an example the causal chain of Legionnaires disease

  • Legionella bacteria growth in the building water system
  • Amplification to high Legionella concentrations
  • Aerosolization of infected water
  • Inhalation of infected water by susceptible host
  • Development of Legionnairesdisease


Follow the directions of your WRMP


Ensure the WRMP has provision for regular checks which should include water sampling and testing. 


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