Process safety is not just what we do—it’s who we are.



Mike and the team he works with at Bluefield Process Safety provide safety lifecycle consulting to the chemical process industries, both by working with industrial clients and by training others to do that work.  His expertise includes facilitating HazOps and other forms of Process Hazard Analysis, facilitating Layer of Protection Analysis, working with organizations to establish Risk Tolerance Criteria, developing Safety Requirements Specifications for Burner Management Systems and other Safety Instrumented Systems, performing SIL verification calculations, and assisting with PSM compliance.

With a career in the CPI that began in 1977 with Union Carbide, Mike was profoundly impacted by the 1984 tragedy in Bhopal and has been working on process safety ever since.  Mike founded Bluefield Process Safety in 2008.  Since 2009, he has been on the faculty at Missouri University of Science and Technology in Rolla, Missouri, where he teaches undergraduate courses on safety engineering and process risk management, training almost a hundred engineering students every year.

Mike writes blogs on process safety and frequently publishes and presents articles and papers on process safety, particularly in the areas of Process Hazard Analysis, Layer of Protections Analysis, Risk Tolerance Criteria, and Safety Instrumented System design.  Most recently, he authored “Making Sense of Risk Tolerance Criteria,” which was published in The Journal of Loss Prevention in the Process Industries and “Atmospheric Tank Failures: Mechanisms and an Unexpected Case Study,” which was published in Process Safety Progress.

Mike received his Bachelor of Science and Master of Science degrees in Chemical Engineering from the University of Missouri-Rolla and a Master of Business Administration degree from Babson College in Wellesley, Massachusetts.

 (314) 420-9350

Nathan Breshears


Nathan Breshears joined the Bluefield Process Safety team in 2019. He graduated from Missouri University of Science and Technology with a Bachelor of Science in Chemical Engineering and uses the knowledge he gained in his consulting. His appreciation for safety was developed after working for 2 years in the manufacturing industry, where he managed his plant’s Customer/Contractor Safety Model Program and served as advisor to the Plant safety team. These experiences and exposure to a great safety culture were instrumental in his decision to focus his career on Process Safety. Nathan most enjoys his work facilitating PHAs and PSM Audits, where he can make Process Safety easy for those whose daily work is impacted by it.

Outside of work, Nathan enjoys home cooking and spending time with his dog.

 (636) 373-1633

Dariesha Lett


Dariesha Lett began work as an Intern at Bluefield Process Safety, LLC in 2019. Her Passion In Safety bloomed when she was introduced to Bluefield Process Safety, LLC in 2014. Mike Schmidt Offered Dariesha a tour of the office and explained to her the purpose of Bluefield Process Safety, LLC . When Informed about procedures and services, Dariesha was Intrigued. Mike Schmidt typed a written promise to offer her a job to explore and experience process safety. While being an Intern The summer of 2019 Dariesha decided she enjoyed being in the office and helping others and decided to continue her experience and exploration at Bluefield Process Safety, LLC.

When not helping make the world a safer place; Dariesha Enjoys Playing trombone, flute, and riding her bicycle.



Kayla began her career with Bluefield Process Safety in 2016.  She completed her Bachelor of Science at Central Methodist University in 2011.  Her interest in process safety began with the commencement of her husband’s career as a process safety consultant.  She took an interest in his work and developed a process safety awareness of her own.  Kayla obtained her 10-hour OSHA card in 2016 and is now working alongside experienced safety consultants continually studying process safety and hopes that her work will have an impact on the safety of others.

Outside of work Kayla enjoys traveling, watching hockey, and spending time with her dogs.

 (573) 366-3723