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Tackling Legionella: Balancing Safety, Sustainability, and Disinfection
Episode 378
"It is a team effort to protect public health from Legionella." - Alberto Comazzi, Ph.D.
We are excited to welcome back Alberto Comazzi, Ph.D. of Sanipur US, for his third appearance on the Scaling UP! H2O Podcast. As an expert in waterborne pathogens, Alberto shares his invaluable insights and experiences about Legionella to help our audience stay informed and proactive in managing water systems. In this episode, we cover a wide range of topics from handling positive Legionella tests to the effectiveness of monochloramine in disinfection. Let's dive into the key points of our discussion.
How do you handle a call from a client panicking about their first positive Legionella test? Alberto advises us to stay calm and follow the pre-established plan outlined in the Water Management Plan (WMP). First, review the WMP to understand the specific steps to take for this scenario. Consider the positivity rates and the location where Legionella was found. By following the agreed-upon plan, you can address the client's concerns effectively and ensure proper action is taken.
Why have we seen Legionella increase by nearly ten times over the past few years? "5-6 years ago there wasn't much information about Legionella, and today so many people are interested in this field which protects public health." - Alberto Comazzi, PhD
Dr. Comazzi highlights two key factors behind the significant rise in Legionella cases:
1. Enhanced Water Testing and Awareness: The past few years have seen a substantial increase in both awareness and testing for Legionella. Healthcare professionals are now more informed about the risks of Legionella and are conducting more tests. Since 2017, the requirement for Water Management Plans (WMPs) in healthcare facilities has led to more comprehensive water testing, contributing to the rise in detected cases.
2. Increased Water Age in Buildings: Efforts to conserve water, which have important environmental benefits such as saving energy and reducing costs, have inadvertently led to higher water age in building systems. When water remains in systems for longer periods, it can lead to reduced disinfectant levels and higher water temperatures—conditions that promote Legionella growth. While water conservation is crucial, balancing it with effective Legionella control measures is essential for maintaining public health.
By understanding these factors, we can better address and mitigate Legionella risks, ensuring a safer environment for everyone.
What advice do you have for those putting together a WMP but who doesn't have the ASSE 1280 Certification?
Get Certified or Seek Expert Help: Creating a comprehensive Water Management Plan (WMP) can be complex. While obtaining ASSE 1280 certification is highly recommended, you can also consider hiring a consultant to help you draft your plan. However, it's crucial to ensure that you execute and document the plan effectively. Proper training for facility operators on temperature control, flushing procedures, disinfectant management, and documentation is essential.
"A Water Management Plan that's just sitting on the shelf isn't doing anyone any good. If no one implements the plan, it is useless." Dr. Alberto Comazzi emphasizes, "Proactive measures are better and more cost-effective than reactive ones." With upcoming due diligence plans addressing various waterborne pathogens, being prepared is key.
Who has responsibility when it comes to municipal water? Alberto reminds us that there is a division between the municipality and the building.
Munic
Published on 1 year, 4 months ago