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title: Legionella Safety in Building Water Systems
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### **White Paper**

## Final Rinse Water: Assessing Design Challenges

#### Dr Surani McCaw, B.E. (Chemical), PhD

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##### **WHITE PAPER:**

# Legionella Safety in Building Water Systems

 

### Surani McCaw, B.E (Chemical), PhD

 

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### Download the White Paper here:

## About the White Paper

This white paper aims to delineate the pivotal process parameters essential for controlling Legionella in building water systems. These control measures are ideally initiated during the design and commissioning phases and should be consistently applied as preventive measures.

- Effective Legionella control in building water systems involves managing temperature, disinfectant levels, hydraulic conditions, nutrient level, and pipe materials, starting from the design and commissioning phases and continuing as preventive measures.
- Maintaining specific temperature ranges, preventing water stagnation, managing disinfectant levels, and addressing corrosion and scaling are key technical considerations to mitigate Legionella proliferation.
- Legionella's ability to form biofilms and enter a viable but non-culturable state complicates detection and control, emphasising the need for continuous monitoring of feed water quality and risk assessment.

## About the author

 

Dr Surani McCaw is a Chemical Engineer with over 25 years industrial experience, specialising in water treatment in the Healthcare and Pharmaceutical Industries. Surani holds a Bachelor of Engineering (Chemical) degree and a Doctor of Philosophy degree in water treatment from University of NSW, Kensington, NSW.

***“We appreciate Surani and her incredible work ethic. Her passion and devotion are evident in her work and her invaluable contributions to the industry as a whole don't go unnoticed. We appreciate the support of Southland over the years, from start to the finish and right across the project lifecycle.”***

Principle Hydraulic Engineer

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