431 Legionella Awareness Month Kickoff!
Scaling UP! H2O
Are You Ready to Talk About Legionella? Every August, we dedicate an entire month to a topic that touches public health, liability, and the core of what water treaters do — yet it’s still misunderstood by many: Legionella. In this episode, Trace Blackmore kicks off Legionella Awareness Month by returning to the basics. Where did Legionella get its name? What makes it dangerous? And why is there still confusion between a water treatment program and a water management plan? Tracing It Back: History, Misconceptions, and Missed Conversations Trace opens with the 1976...
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430 PFAS Regulations and Technologies with Brian Liotta
Scaling UP! H2O
“The winning combination will include not just removal—but real destruction of PFAS.” - Brian Liotta PFAS: The Invisible Challenge Reshaping Water Treatment PFAS chemicals are everywhere—from consumer products to our bloodstream. But as regulations tighten, water treatment professionals must now evolve faster than ever. In this episode of Scaling UP! H2O, host Trace Blackmore speaks with , Director of Marketing and Product Development at , about the shifting regulatory landscape and the advanced technologies being developed to monitor, remove, and destroy PFAS compounds. ...
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429 The Life and Career of Jim Lukanich
Scaling UP! H2O
“You can’t learn it all in one year. You can’t even learn it all in ten.” That single statement from Jim Lukanich captures the spirit of this unforgettable episode. Returning to the for the first time since Episode 10, joins host to reflect on a remarkable 44-year career in the water treatment industry. From his early days at U.S. Steel to leading technical innovation at Buckman Laboratories, ChemCal, U.S. Water, and Kurita, Jim has been a force for mentorship, learning, and raising the bar in technical excellence. Building a Career, One Problem at a Time Jim...
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428 Innovations in Water Treatment with Dr. Jasbir Gill
Scaling UP! H2O
What happens when a nuclear chemist pivots into industrial water treatment? In this episode, host Trace Blackmore is joined by , President at Water Energy Solutions Inc, whose career spans five decades of breakthrough innovations in water chemistry and sustainability. From developing predictive modeling systems to creating new polymer standards, Dr. Gill shares how scientific rigor and practical experience came together to shape tools still used today. “We were not just saving water—we were calculating the true cost of energy and environmental impact.” From Nuclear Chemistry to...
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427 July 4th! Entrepreneurship, Water Wells, and the Spirit of Liberty
Scaling UP! H2O
“Give Me Liberty or Give Me Death!” - Patrick Henry Honoring Innovation, Freedom, and Small Business on the 4th of July In this special Independence Day episode of Scaling UP! H2O, host Trace Blackmore brings you a rich blend of patriotism, professional insight, and entrepreneurial spirit. Opening with reflections on July 4th traditions—from fireworks to parades—Trace sets the stage for a compelling conversation with Jack Clark, Owner and Founder of 180 Water. As the water industry faces growing demand and generational turnover, Jack offers a bold solution: a replicable...
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426 Sustaining Success: Tom Hutchison on Leading Through Generational Change
Scaling UP! H2O
In this episode, Trace Blackmore welcomes back , Chairman of the Board, , to reflect on what it really takes to step out of day-to-day leadership—and do it well. As a multi-decade leader in water treatment, Tom shares the personal, professional, and organizational insights that shaped his transition from CEO to chairman and what it means to lead a business into its next generation. From early succession conversations to the unspoken anxieties of staff, Hutch offers a rare look behind the curtain of legacy-building in industrial water treatment. And as private equity plays a growing...
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425 Smart Technology in Water Treatment with Kevin Kuhne
Scaling UP! H2O
“You don't have to transition your entire business. You just need to start. Small beginnings are okay.” Revolutionizing Water Treatment Through Smart Tech In this episode of Scaling UP! H2O, host Trace Blackmore welcomes , Founder and President of , for a deep-dive conversation on the emerging role of smart technology and artificial intelligence in water treatment. With decades of experience leading tech-driven innovation, Kevin unpacks how intelligent systems, edge computing, and real-time data processing are reshaping operations in the field—from cooling towers to...
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424 Chlorine Dioxide Insights with Greg Simpson
Scaling UP! H2O
A Lifelong Exploration into Chlorine Dioxide In this episode of Scaling UP! H2O, Trace Blackmore welcomes Greg D. Simpson, a recognized authority on chlorine dioxide and a long-time researcher, writer, and technologist in the industrial water treatment space. With decades of hands-on experience and a personal archive of thousands of technical papers, Greg brings unmatched depth to this essential conversation. From Field Trials to File Cabinets Greg takes us through his early career, from being tasked to explore chlorine dioxide as an alternative disinfectant on the...
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423 Pushing the Boundaries: Jacob Deak on Innovating Water Treatment Systems
Scaling UP! H2O
In this episode of Scaling UP! H2O, host Trace Blackmore interviews , Marketing & Inside Sales Director at , for a deep dive into how innovation is born—not in labs, but in the field. Jake shares the story of Pyxis Lab’s rapid evolution from a lean, hands-on team to an industry leader in developing smart, user-informed water treatment technology. Building Solutions from Real-World Problems Jake Deak's journey began during the pandemic, stepping into a role shaped by both legacy and urgency. Working closely with his father and the Pyxis team, he reveals how their approach...
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422 Inside the Association of Water Technologies with John Caloritis
Scaling UP! H2O
In this milestone episode, host Trace Blackmore welcomes of and current President of the . Together, they explore the strategic evolution of AWT and announce an exciting new partnership that officially makes Scaling UP! H2O the association's podcast partner. This conversation is a rare behind-the-scenes look into how AWT operates, from board decisions to training initiatives, and what the future holds for water treatment professionals who want to lead, grow, and make an impact. Behind the Boardroom: How AWT Operates at the Top John Caloritis gives a full picture of how the...
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A Lifelong Exploration into Chlorine Dioxide
In this episode of Scaling UP! H2O, Trace Blackmore welcomes Greg D. Simpson, a recognized authority on chlorine dioxide and a long-time researcher, writer, and technologist in the industrial water treatment space. With decades of hands-on experience and a personal archive of thousands of technical papers, Greg brings unmatched depth to this essential conversation.
From Field Trials to File Cabinets
Greg takes us through his early career, from being tasked to explore chlorine dioxide as an alternative disinfectant on the Gulf Coast to becoming a dedicated advocate of its power and versatility. He explains why chlorine dioxide often outperforms traditional biocides like bromine and chlorine, especially in complex environments such as refineries, hospitals, and cooling towers.
Comparing Monochloramine and Chlorine Dioxide
A central theme in the episode is Greg’s recent research comparing monochloramine and chlorine dioxide. He shares real-world case histories, including treatments at major institutions and breaks performance differences in terms of biofilm penetration, disinfection byproducts, and residual impact. He also discusses regulatory hurdles, competitive dynamics, and what the literature says about long-term microbiological effects.
Building Disinfection Systems and Emerging Applications
The episode explores chlorine dioxide’s expanding role in building disinfection, especially healthcare facilities. Greg shares how generator technologies are changing the game, while also diving into regulatory constraints in places like Texas. He further explains the promising potential of chlorine dioxide in air disinfection and surface sanitation, drawing from both studies and practical implementations.
A Legacy of Learning
From assembling four filing cabinets of technical papers to writing multiple books and collaborating with other industry pioneers, Greg's story is one of relentless inquiry. His work continues to influence how the industry thinks about safe and effective disinfection strategies.
Conclusion
Greg Simpson’s insights go far beyond operational know-how. This episode is a masterclass in both the science and history of chlorine dioxide in industrial applications. For professionals seeking to deepen their understanding of advanced water treatment chemistry, this conversation is essential.
Call-To-Action
Explore more episodes of Scaling UP! H2O to stay current on the science, tools, and trends shaping industrial water treatment. Continue the conversation with peers, and never stop learning.
Stay engaged, keep learning, and continue scaling up your knowledge!
Timestamps
04:13 – Water You Know with James McDonald
05:28 – Upcoming Events for Water Treatment Professionals
07:43 – Trace starts the interview with introduction of the master of all things – Chlorine Dioxide
16:25 – Trace asks about paper presented at the Association of Water Technologies chlorine dioxide versus chloramine, a review
31:30 – Benefits of Chlorine Dioxide in Pulp Bleaching and reduced environmental toxicity
36:04 – Chlorine dioxide vs. Monochloramine in hospital water systems and Legionella prevention
41:08 – Advice for Professionals
Quotes
“Find an area to focus on and know more about that than anybody else.”
“Chlorine dioxide doesn’t differentiate too much between the walls and what’s in bulk water.”
“When we changed to chlorine dioxide, it was five or six months before we saw a residual at the other end of our distribution system.”
“Chlorine dioxide does not chlorinate directly any organic.”
Connect with Greg D. Simpson
Phone: +17132060250
Email: [email protected]
Website: PureLine
Click HERE to Download Episode’s Discussion Guide
Guest Resources Mentioned
Chlorine Dioxide vs. Monochloramine: A Review technical paper
Practical Chlorine Dioxide: Volume I – Foundations
Practical Chlorine Dioxide: Volume II - Applications
Practical Chlorine Dioxide: Volume III - Oil and Gas
A Focus on Chlorine Dioxide: The "Ideal" Biocide technical paper
The Safe and Effective Use of Chlorine Dioxide technical paper
Biofilm: Removal and Prevention with Chlorine Dioxide technical paper
Scaling UP! H2O Resources Mentioned
AWT (Association of Water Technologies)
Scaling UP! H2O Academy video courses
Water You Know with James McDonald
Question: Which water analysis measures the concentration of hydrogen ions in water?
2025 Events for Water Professionals
Check out our Scaling UP! H2O Events Calendar where we’ve listed every event Water Treaters should be aware of by clicking HERE.
