Meet Our Associates

Jamie Marshall | President | MS | CIH

Following in his father’s footsteps, Dr. Charles L Marshall, as a leader in the environmental and industrial hygiene profession, Jamie started his career at Marshall Environmental Management, Incorporated (MEM) in 2003, as a technician, while pursuing a Bachelor of Science in Chemistry at the University of Central Oklahoma.  Jamie then attained a Master of Science in Industrial Hygiene and Environmental Sciences from the University of Oklahoma.  Jamie has since become a Board-Certified Industrial Hygienist (CIH) and President of MEM.  Jamie is currently licensed as an Oklahoma Department of Labor (ODOL) Asbestos Inspector, Management Planner and Asbestos Abatement Project Designer and an Oklahoma Department of Environmental Quality (ODEQ) Lead-Based Paint Inspector and Risk Assessor.  He also holds a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate.  Jamie also served as the lead instructor for the ODEQ Lead-Based Paint program at Metro Technology Center.  He currently serves as an adjunct professor at Southeastern Oklahoma State University and previously served at the University of Central Oklahoma teaching courses in Healthcare Safety, Hazard Control and Industrial Hygiene.  On a continual basis, Jamie strives to provide the utmost service and expertise to MEM clients. 

Rachel Butler | Certified Industrial Hygienist | MS | CIH | GSP

Rachel received her Bachelor of Science in Community Health from the University of Central Oklahoma before joining Marshall Environmental Management, Incorporated (MEM).  Rachel started working with MEM in 2011 as a technician while earning a Master of Science from the University of Oklahoma in Industrial Hygiene and Environmental Health Sciences.  During her employment with MEM, Rachel attained an Oklahoma Department of Labor (ODOL) Asbestos Inspector License, an Oklahoma Department of Environmental Quality (ODEQ) Lead-Based Paint Inspector and Risk Assessor License and a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate and in 2016 Rachel became a Board-Certified Industrial Hygienist (CIH).  Rachel plays an instrumental role with MEM by specializing in Industrial Hygiene and asbestos in addition to managing indoor air quality and lead-based paint projects. 

Stephanie Villanella | Industrial Hygiene Associate & Laboratory Manager | MS | GSP
 
In 2012, Stephanie received her Bachelor of Science in Biology from the University of Central Oklahoma.  While working as an intern for Marshall Environmental Management, Incorporated (MEM), Stephanie earned a Master of Science in Industrial Hygiene and Environmental Health Sciences from the University of Oklahoma in 2014.  Stephanie holds an Oklahoma Department of Labor (ODOL) Asbestos Inspector License, an Oklahoma Department of Environmental Quality (ODEQ) Lead-Based Paint Inspector and Risk Assessor License and a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate.  Currently, Stephanie is board-eligible to sit for the American Board of Industrial Hygiene (ABIH) Certified Industrial Hygienist (CIH) exam.  In addition to managing projects specific to Indoor Air Quality, Industrial Hygiene and Phase I and II Environmental Site Assessments, Stephanie serves as the MEM Laboratory Manager and Microbiology Laboratory Analyst. 
Alex Lane | Industrial Hygiene Associate
 
Alex joined Marshall Environmental Management, Incorporated (MEM) in 2012 to assist with a short-term project.  Alex quickly secured his position with MEM by expanding his knowledge and exhibiting hard work and dedication.  During his employment with MEM, Alex acquired an Oklahoma Department of Labor (ODOL) Asbestos Inspector License, an Oklahoma Department of Environmental Quality (ODEQ) Lead-Based Paint and Risk Assessor License and a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate.  As an Industrial Hygiene Associate, Alex manages numerous asbestos and lead-based paint projects.  Alex also performs various aspects of new-employee training. 
Eneojo Onuche | Industrial Hygiene Associate | BS | MEd
 
Eneojo “Jo” is a graduate of the University of Jos, in Plateau, Nigeria, with a Bachelor of Science in Chemistry.  Jo started as an intern with Marshall Environmental Management, Incorporated (MEM) in 2015 while working on a Master of Education in Industrial Safety from the University of Central Oklahoma.  Jo has since graduated and become a fulltime employee.  While working with MEM, Jo also acquired an Oklahoma Department of Labor (ODOL) Asbestos Inspector License and a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate along with a certificate in Occupational Hearing Conservation.  Currently, Jo is pursuing a Master of Science in Industrial Hygiene and Environmental Health Science at the University of Oklahoma Health Sciences Center.  His functions with MEM consist of assisting with Industrial Hygiene and Indoor Air Quality monitoring and Phase I and Phase II Environmental Site Assessments. 
Sarah Marshall
Sarah Marshall Project Manager
In 1989, Sarah started working part time for Dr. Keith L Stanley of Stanley Engineering, Incorporated. Her initial duties consisted of cleaning the office and washing laboratory glassware. Eventually working fulltime, her work functions evolved into clerical work, assisting with laboratory procedures and waste-water monitoring. For a number of years, Sarah assisted with various indoor air quality, industrial hygiene and engineering projects. This is where Sarah met and eventually married Jamie Marshall. When Dr. Stanley began his retirement process in 2006, Sarah joined ranks with Marshall Environmental Management, Incorporated (MEM) where she continued to assist with indoor air quality and industrial hygiene projects. Provided a unique opportunity, Sarah worked under two leading experts, Dr. Stanley and Dr. Marshall, in the Industrial Hygiene field. As a driving force in the growth of MEM, Sarah acquires and manages countless projects, and as of January 2014 Sarah serves as the Corporate Secretary for MEM.
Jennifer Butin
Jennifer Butin Adminstrative Assistant
Jennifer joined the Marshall Environmental Management, Incorporated (MEM) team in February of 2015. Having worked with insurance and medical records as well as legal proceedings, Jennifer brings over 15-years of clerical experience to MEM. Her primary function is to serve as administrative support and maintain project logistics.
Sandy West
Sandy West Industrial Hygiene Technician & Laboratory Analyst | ACSA
Sandy joined the Marshall Environmental Management, Incorporated (MEM) team in 2015. She brings over 16-years of experience in microscopy to the MEM team particularly in the identification of Asbestos. In 1999, Sandy earned an Associate in Applied Computer Science in Computer Technology from Mid Del Technology Center in Oklahoma City. Sandy also holds an Oklahoma Department of Labor (ODOL) Asbestos Inspector License and a National Institute of Occupational Safety and Health (NIOSH) 582E Asbestos Fiber Counting Certificate. Her functions with MEM include laboratory analyst, asbestos and microbiology, interpreting and reporting laboratory analyses and third-party asbestos abatement air monitoring.