Process Safety with Trish & Traci

On this episode of Processing Safety with Trish and Traci, forensic engineer Dr. Sean Brady joins Trish Kerin and Traci Purdum to revisit Piper Alpha, the 1988 North Sea platform disaster that killed 167 workers. They trace how a lost permit-to-work, a missing relief valve, and a design never updated for gas service combined with failed firewalls, redundant systems that bred false confidence and risers that kept feeding the fire. Using the "Jenga tower" metaphor, Brady explains how safety systems degrade unnoticed until they collapse, and why organizations must dispense with likelihood and focus on consequence, controls, and leadership culture to prevent the next catastrophe.

Smart design and layout choices, made well before a crisis hits, can protect plants from cyberattacks, sabotage and extreme weather without a major capital investment. This is based on an article from Amin Almasi, "Disaster Planning in Process Plants: Best Offense is a Passive Defense," Chemical Processing, July 20, 2026

From an 3 a.m. evacuation drill to a real fire alarm in Toronto, repeated emergencies reveal how — and how poorly — we prepare when we're away from home. Hear why Trish could be the Jessica Fletcher of the process safety world.

On this episode of Processing Safety with Trish and Traci, General Atomics safety engineer Valerie Stakes returns to discuss well-being in the safety profession, building on her 2026 ASSP conference session. She, Trish Kerin and Traci Purdum explore why safety professionals — often wired to please and fix — struggle to set boundaries and how compassion fatigue, unappreciated efforts and repeated exposure to injuries and fatalities take a cumulative toll. They share personal stories of burnout, offer tips on debriefing, networking and using employee assistance programs and close with a guided breathing exercise. The episode also answers a listener’s question on the role of training in operations and emergency response.

Decades of guidance on alarm management exist. So why are control rooms still drowning in noise?

Trish Kerin breaks down the runaway reaction that triggered a mass evacuation in Orange County, California, and explains what facilities handling reactive chemicals can learn about instrumentation, warning signs and emergency communication. Editor's Note: We mention an upcoming webinar that Trish will be hosting: a webinar focused on leadership in uncertain times — looking at key strategies and tools we can use to navigate some of the challenges we're all facing globally right now. Use the code CPREADER for $5 off.

The analog timepieces at Melbourne's Flinders Street Station offer a timeless lesson: sometimes the simplest solution is the most elegant — and the most reliable. 

Eleven refinery and fuel facility fires across four continents in roughly 60 days — that's the alarming backdrop for this episode of Process Safety with Trish and Traci. Process safety expert Trish Kerin examines whether the 2026 incidents are a statistical anomaly or a symptom of deeper systemic pressure. She points to deferred maintenance, narrowing margins and the normalization of risk during periods of production stress as key contributing factors. Kerin also addresses the unique vulnerabilities of new facilities and aging infrastructure. Her bottom line: know your controls, check that they're working and talk to your people. Stick around for the bonus material at the end.

When economic pressures mount, safety vigilance can quietly erode — and that's when incidents happen. In this episode, process safety expert Trish Kerin introduces APTBED, a practical decision-making framework for navigating volatile, uncertain, complex and ambiguous times. The acronym covers six critical areas: Authority (know who's in charge), Psychological Safety (create space for honest information), Tacit and Explicit Knowledge (bring all knowledge into the room), Biases (recognize and manage cognitive blind spots), Expectations (manage them or people will fill the void), and Document Decisions (if it's not written down, it never happened). Good decisions and strong safety culture aren't mutually exclusive — even in a crisis.

When operators inevitably push levels to their limits, a poorly placed vapor inlet nozzle can turn a routine excursion into a tower-wrecking event.

In this episode, Stay Safe Columnist Trish Kerin reads her latest article for Chemical Processing. She's a proud GenXer, and she points out that a line from Dr. Ian Malcolm cuts to the heart of a critical distinction in process safety — the difference between what we are allowed to do and what we ought to do. You can read the column here.

When natural disasters strike industrial facilities, the results can be catastrophic — and most companies aren't ready. In this episode of Process Safety with Trish and Traci, Trish Kerin and Traci Purdum explore NATECH events, where natural hazards collide with industrial risk. Drawing on real incidents including Arkema in Crosby, Texas, BioLab in Lake Charles and the Fukushima disaster, they examine why facilities consistently underestimate natural hazard risk, how to build truly complete ride-out and recovery plans, and why traditional PHAs fall short for NATECH scenarios. Kerin's bottom line: assume the event will happen, and prepare accordingly.

Chernobyl, Bhopal, Three Mile Island, Deepwater Horizon, Texas City — What do they have in common? Human error or human factors were identified as contributing to the incidents. But what are these factors? Understanding how people actually perceive, decide and act is essential to preventing catastrophic industrial accidents and everyday errors. This In Case You Missed It episode brings the written word to life from the column:  Human Factors Engineering: Designing Systems Around Our Limitations

In this episode, Trish Kerin and Traci Purdum explore process hazard analysis revalidations and how to make them more effective. Kerin explains the difference between redoing a PHA and revalidating existing assessments, introducing the Delta HAZOP methodology that focuses on creeping change in facilities. She discusses triggers for revalidation, from legislative requirements to significant operational changes, and emphasizes the importance of selecting the right team and methodology. Kerin highlights how AI and machine learning can help gather data and identify trends, while stressing that human expertise remains essential. The key takeaway: approach revalidations with rigor and discipline, not as tick-box exercises, to truly identify hazards and manage risk effectively.

Applying risk management principles helps Process Safety Engineer Trish Kerin navigate her first successful year of self-employment. Listen in as Trish brings her January column to life. You can read her column here.

Engineers couldn't prove danger, so managers launched anyway. Seven astronauts died when O-rings failed in freezing temperatures. Apply the lessons learned to help avoid future incidents.   Three Key Takeaways: Reverse the burden of proof: Require positive proof that something is safe before proceeding, rather than forcing engineers to prove it's unsafe. Simplify safety communication: Complex data failed to convince decision-makers, but a simple demonstration (O-ring in ice water) made the danger crystal clear. Protect technical authority: Engineers need more than just formal authority to stop unsafe operations — they need genuine psychological safety to exercise that power without career consequences.

This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of Lead Like Kerin, and Stay Safe columnist for Chemical Processing, will read her column "Bird’s-Eye View Prevents Process Safety Groundings," which was published to chemicalprocessing.com on Dec. 17, 2025.

In this year-end episode, hosts Trish Kerin and Traci Purdum welcome Hayley Little, a U.K.-based process safety engineer who tracks quarterly catastrophic incidents on LinkedIn. The discussion explores origin stories in process safety, the critical gap in fundamental safety knowledge outside petrochemical industries, and the alarming frequency of preventable incidents in lower-hazard sectors. They discuss innovative solutions including AI tools, virtual reality training and social media outreach to democratize process safety education. The conversation emphasizes the urgent need for better university training, field presence over desk work and human factors integration to make it easier to "accidentally get it right."

This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of Lead Like Kerin, and Stay Safe columnist for Chemical Processing, will read the first few chapters from her book  “The Platypus Philosophy – how to identify and manage weak signals”  This book explores weak signals and focuses on how to identify and manage them to prevent incidents. It uses fun storytelling about the unique platypus as a technique to explain complex concepts and tools. You can purchase this book on Amazon or snag a signed copy from Trish’s website, leadlikekerin.com.

The Buncefield explosion occurred when a gasoline storage tank overfilled after both its level gauge and independent high-level switch failed. Gasoline vapor formed a massive cloud that ignited, causing significant damage to surrounding business parks. Fortunately, the Sunday morning timing prevented fatalities, though 43 injuries occurred. The incident revealed critical gaps in safety control verification, testing procedures, and maintenance regimes. Twenty years later, the disaster emphasizes the importance of recognizing weak signals, maintaining bund integrity, and ensuring operators actively monitor tank filling operations rather than relying solely on automated systems.

In this episode, Trish Kerin reads her most recent column, which highlights the importance of immediate communication in safety situations, even when complete information isn't yet available to share. You can read the column here.

Trevor Kletz revolutionized process safety through HAZOP advocacy, inherent safety principles, learning from accidents, and emphasizing design simplification over complex add-ons. In this episode, Trish & Traci discuss his many contributions to the world of process safety.

When OSHA's Process Safety Management (PSM) standard took effect in 1992, it promised a new era of systematic hazard identification. Three decades later, process safety professionals are still witnessing the same critical oversights repeatedly compromising facility safety—oversights that have contributed to near misses, and far worse, major incidents. Editor-in-Chief Traci Purdum reads an article from Felicia Miller, senior principal engineer at ABSG Consulting and Darshankumar Lakhani, senior manager in engineering at ABSG. Original article: https://www.chemicalprocessing.com/safety-security/risk-assessment/article/55311485/hidden-hazards-10-common-pha-oversights

This episode explores the critical role of equipment reliability in chemical processing, focusing on three major incidents: Longford, BP Texas City and Buncefield. Trish highlights how faulty instrumentation, poor maintenance and overlooked management of change led to catastrophic failures, fatalities and environmental impacts. The discussion emphasizes safety-critical elements, maintenance KPIs and the importance of accurate instrumentation.

Workers who challenge flawed procedures can improve safety and production. In this episode, Trish Kerin reads her latest column, which details how a trip to Tasmania with her sister turned getting lost into a process safety lesson of not blindly following procedures.  Enjoy as our favorite Australian safety guru guides you through the Bass Strait to Cataract Gorge.

In this episode, Trish Kerin and Traci Purdum discuss process safety insights with Alex Fernando and Warren Smith from Incident Analytics. Their research analyzed over 10,000 incidents across 12 countries and multiple high-risk industries. Key findings include that organizations often misclassify serious incidents, missing critical learning opportunities. Many safety controls are "difficult" or "unworkable" in practice, with workers adapting procedures to get jobs done despite inadequate equipment or impractical requirements. The research reveals a significant gap between "work as imagined" and "work as done." A fundamental shift in leadership thinking needs to take place — from asking "why didn't they follow the procedure?" to "why couldn't they follow the procedure?" References:  Whitepaper 1  Whitepaper 2 

This episode revisits the critical topic of permit-to-work systems, exploring how these systems manage the safe transfer of equipment ownership between operations and maintenance teams. Trish & Traci discuss key elements, different permit types, common failures, and the tragic Piper Alpha disaster.

Mastering Tim Tam timing mirrors process safety's critical risk-reward balance. Get it right and you’ll reap rewards. As the bickie became gooey in my fingers, I knew the moment was now — time to slam that Tim Tam. A Tim Tam is an Australian bickie — or cookie, to those of you in the U.S. It was created in 1964 by Arnott’s and is an iconic Aussie treat. It consists of two rectangular bickies with a flavored cream filling that is coated in chocolate. A Tim Tam Slam is a unique way to consume the bickie. The steps are as follows:

This 100th episode of "Process Safety With Trish and Traci" examines the 2003 Space Shuttle Columbia disaster through the lens of due diligence. Columbia disintegrated during re-entry after foam debris damaged heat shield tiles during launch. The podcast explores how NASA normalized foam strikes over time, turning "lessons of failure into memories of success." Multiple intervention opportunities were missed due to inadequate resources, poor communication, and cultural barriers.

On a sunny summer day in 2007 near Wichita, Kansas, a tanker truck was offloading naphthalene into a stainless-steel tank at a solvent tank farm when the container spontaneously ignited, catching fire and exploding, shooting projectiles in the air. This led to the evacuation of thousands in a nearby community. While there were no casualties, the explosion destroyed the entire storage facility, luckily not causing any injuries or fatalities in the nearby community.  An investigation determined that electrostatic charge buildup had caused a spark that ignited a solvent-air mixer in the vapor space in the vessel receiving naphtha from the tanker truck. In this episode, Traci Purdum, CP's editor-in-chief, reads an article from authors Tom Patnaik and Christian Stentzel -- both of Thaletec. The article was published May 21, 2025.

Risk assessment should still be a manual process, but AI can streamline data collection to enable sound engineering judgments. In this episode,  Trish and Traci welcome guest Dheerajkumar Narang, whose research examines how AI and machine learning can enhance process safety compliance. Traditional compliance methods are time-consuming and fragmented across different systems, while AI can automate data collection, identify leading indicators and predict compliance outcomes. Key challenges include system integration with legacy infrastructure and maintaining domain expertise for regulatory updates. AI should streamline processes to allow operators to focus on critical tasks.

In this episode, Trish and Traci discuss the catastrophic failure at Queensland's Callide Power Station C4 on May 25, 2021, which caused power outages for 470,000 people.  During a routine switching operation to replace DC battery systems, a voltage drop was misinterpreted as an AC fault, triggering a cascading failure. Both AC and DC systems failed, leaving the turbine without lubrication while it continued spinning backwards at 3,000 RPM. The incident demonstrates that process safety principles apply beyond traditional chemical plants to any high-hazard environment. Key lessons include proper hazard identification, functioning safety controls, and maintaining culture, leadership, accountability and governance in safety management.

This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of Lead Like Kerin, and Stay Safe columnist for Chemical Processing, will read her column “Wield Questions to Learn and Teach”  “Curiosity killed the cat, but satisfaction brought him back.” – A proverb made modern by Eugene O’Neill. Have you ever asked a question at work and were surprised by the answer? Over the course of my career, this has happened many times. Sometimes, the answer was genuinely new to me. Other times, I was surprised that someone thought the answer they provided was legitimate. In both cases, I learned something.  Written By: Trish Kerin Read By: Trish Kerin  Read Article HERE 

Remembering the human toll of Texas City and Deepwater Horizon and applying those lessons learned can prevent similar tragedies. In this episode, Trish and Traci discuss two major BP incidents: the 2005 Texas City Refinery explosion that killed 15 workers when an overfilled tower created a geyser of hot raffinate that ignited, and the 2010 Deepwater Horizon explosion that killed 11 workers and caused the largest U.S. marine oil spill when cement failed to properly seal a well. Key factors included faulty equipment, misleading indicators, inappropriate safety messaging and failure to learn from near-misses. These tragedies led to industry-wide improvements, including standardized process safety metrics, occupied building risk assessments, and better hazard management.

Have you ever done a double-take when looking at an inspection photograph? I certainly did when an engineer at a valve manufacturer sent me an inspection photograph and asked, “See anything wrong with this picture?” “Yeah,” I replied. Someone had installed two expansion relief valves back-to-back on the body bleed of a twin-seated plug valve used for isolation in our gasoline tank farm. The valve casting safety port was cracked because expansion flow was choked. “Dumb, really dumb,” I remarked. How did this get by?

In this podcast, Trish and Traci discuss the importance of storytelling in process safety. Trish shares two influential stories from her career and personal life. She outlines effective storytelling using the "four Cs": context, conflict, conclusion, and call to action. She emphasizes starting with a memorable moment to engage audiences, matching tone to content gravity, and personalizing stories.

Welcome to the In Case You Missed It edition of Process Safety with Trish and Traci -- the podcast that aims to share insights from past incidents to help avoid future events.  This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of Lead Like Kerin and Stay Safe columnist for Chemical Processing will read her column “An Engineer’s Process Safety Evolution.” 

A former Formula One engineer has developed an AI copilot that can suggest questions, reference incident databases and provide support. But don’t worry,  humans still have the last word.

Safety experts share strategies to revitalize job hazard analysis programs. A piece of paper won’t save your life, but what’s on that paper could.   Trish and Traci, along with guest Valerie Stakes, discuss five steps to improve job hazard analysis (JHA) programs: honest program evaluation, form clarity, embedding JHAs in other documents, improved training and increasing visibility through collaboration.

We’ve extracted a few gems from the 2024 season of Process Safety with Trish & Traci. Listen in as we discuss recurring accidents, emergency systems and organizational learning.

This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, Chemical Processing’s Stay Safe columnist, will read her column “Process Safety Lessons from Bhopal 40 Years Later” Written By: Trish Kerin Read By: Trish Kerin  Read Article 

The Bhopal tragedy of 1984 at a Union Carbide pesticide plant in India killed thousands of people. The incident resulted from multiple safety failures: contaminated methyl isocyanate (MIC) storage, disabled safety systems and poor plant management. It led to significant changes in process safety, including the development of OSHA's Process Safety Management standard, the Center for Chemical Process Safety, and international safety directives like the Seveso protocol. Chemical engineer Ramin Abhari has created graphic novels to communicate the lessons learned, emphasizing the importance of inherently safer design, proper management of change and maintaining critical safety systems during plant decommissioning.

In this episode, Trish and Traci discuss the 1984 Mexico City LPG disaster in Mexico, where a pipe burst at a Pemex facility. This led to a massive explosion equivalent to five Hiroshima bombs. A combination of factors, including poor management of change, inadequate fireproofing and proximity to residential areas, resulted in 500 deaths. Key lessons included the importance of proper land use planning, risk assessment and fire protection.

Chemical Processing recently hosted a webinar on the importance of process safety during transient operations. Normal operations include continuous and batch processes, while abnormal situations involve plant upsets or deviations from typical parameters. Loss of control can lead to unscheduled shutdowns, and emergency situations may require immediate action. For all scenarios, proper instrumentation, risk assessment and decision-making are critical.   Trish Kerin, director of the IChemE Safety Centre and co-host of the Process Safety with Trish & Traci podcast series, served as the subject matter expert and emphasized that process safety revolves around leadership, focusing on knowledge, engineering, systems and human factors. 

Welcome to the In Case You Missed It edition of Process Safety with Trish and Traci -- the podcast that aims to share insights from past incidents to help avoid future events. I’m Traci Purdum, EIC of Chemical Processing. Please subscribe to this free podcast on your favorite platform to continue learning with Trish & me in this series. This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of IChemE Safety Centre, and Stay Safe columnist for Chemical Processing, will read her column “Knowledge Is Power – Or Is It?” "Knowledge is power" — a phrase commonly attributed to Francis Bacon's 1597 work Meditationes Sacrae — has endured for centuries, echoed by influential figures like Thomas Jefferson. However, this adage, while impactful, may only scratch the surface of a deeper truth. When it comes to process safety, we need people to understand a range of aspects, from the basis of design to the operating philosophy. In other words, we need them to have knowledge.  Written By: Trish Kerin Read By: Trish Kerin  Read Article HERE 

On the 35th anniversary of the deadly event we examine how routine maintenance can go horribly wrong.

Welcome to the In Case You Missed It edition of Process Safety with Trish and Traci -- the podcast that aims to share insights from past incidents to help avoid future events. I’m Traci Purdum, EIC of Chemical Processing. This In Case You Missed It episode brings the written word to life. Today, I will be reading a column by our editor at large Sean Ottewell “Safety Lessons from the Great Molasses Flood of 1919” -- Discover the catastrophic events of the Great Molasses Flood, where engineering failures led to a deadly wave of syrup in Boston’s North End. Written By: Seán Ottewell, editor-at-large Read By: Traci Purdum, editor-in-chief  Read Article HERE https://www.chemicalprocessing.com/voices/ottewell/article/55055791/safety-lessons-from-the-great-molasses-flood-of-1919

In this episode of Process Safety with Trish and Traci we interview Fiona Erskine, an engineer and crime novelist who has a passion for process safety. Fiona discusses balancing her engineering career with writing and how she uses her novels to educate readers about process safety and engineering concepts. Her Dr. Jaq Silver series combines thrilling plots with accurate technical details, making complex topics accessible to non-experts.

Our tendency to underestimate the likelihood of rare occurrences can lead us to dismiss the possibility of process safety incidents. This In Case You Missed It episode brings the written word to life. Today, Trish Kerin, the director of IChemE Safety Centre and Stay Safe columnist for Chemical Processing, will read her column “It’s Not Impossible That It’s Possible” Written By: Trish Kerin Read By: Trish Kerin  Read Article HERE 

The standard's industry-agnostic approach, its potential to influence global PSM practices and its role in setting benchmarks for organizations not covered by traditional legislation will impact safety practices worldwide. In this episode, Trish & Traci discuss the Canadian Process Safety Management (PSM) standard CSA Z767, the world's first national PSM standard. Adrian Pierorazio and Parnian Jadidian — part of the team that crafted the standard — explain its development, starting as a guideline and evolving into a national standard to provide a unified framework for PSM across various industries in Canada. The standard was updated in 2024 to incorporate industry feedback and expand key sections.