Russell Britten, President

Russell is the President and Founder of ETI. With over 22 years of experience as both an analyst and laboratory manager, Russell has developed an in-depth practical knowledge of a wide array of environmental projects. His ability to provide real world solutions to complex tasks is a valuable asset to many of ETI's clients. Russell earned his degree in Chemistry from Southwestern Oklahoma State University. He and his wife, Michelle, are active members of their community and enjoy spending time with their children, Collin and Kayla, gardening, golf and cheering on the OKC Thunder. 


James Vandersee, Vice President

James has every quality necessary to ensure our QA/QC standards are always maintained. He is intensely focused, detailed oriented, and a gifted mathematician. His deep understanding of numerous analytical methods make him a built-in reference tool for our clients. His job is to make sure we do things the right way each and every time... a job he performs well. James graduated from the University of Central Oklahoma with an advanced degree in Chemistry. His educational performance earned him an ACS (American Chemistry Society) Certificate. James and his wife, Casey, are the proud parents of Ava and Emmett. He spends his free time launching homemade rockets, gardening and spending time with his family.


Keith Hopcus, Technical Director

Keith is our Technical Director. He is a graduate of the University of Central Oklahoma where he studied chemistry. He has served the analytical industry in many capacities throughout his career. From an analyst in a small lab to laboratory manager of a national laboratory, he has the experience necessary to manage ETI Dallas. In addition to his laboratory expertise, he brings valuable IT knowledge to ETI. Keith's knowledge of LIMS and data deliverables give our clients a trusted resource to obtain their data in a format that works best for them.


You will find Keith cheering on his Dallas Cowboys each and every Sunday. He enjoys spending time with his wife and two children. We are happy to have Keith leading our group.



Scott Haas, Quality Manager

Scott Haas is the Quality Manger for Environmental Testing Inc. (ETI), holds a Bachelor of Science in Chemical Engineering from the University of Oklahoma and is a lifelong resident of the Oklahoma City area.  Scott started his career in the lab during his junior year of high school and has worked with analytical data ever since.  He has worked in the lab testing samples, as a technician repairing equipment, and as a part of the management team.  Titles over the course of his career include Laboratory Technician, Chemist, Project Manager, Vice-President, Quality Director, Operations QA/QC Manager, and Quality Manager.  Scott has worked for several private companies as well as the City of Oklahoma City Industrial Pretreatment Laboratory.  He served on the ODEQ Laboratory Advisory Council from 2006-2012.  Most recently he was the Operations QA/QC Manager for a large science and engineering company. There he was an integral part of the team for various remediation projects and environmental assessments, responsible for making sure that chemistry data was accurate and used appropriately.   Scott is a good problem solver, a capable public speaker, and enjoys teaching.  He specializes in process development, formalization, and improvement.


Outside of the lab Scott enjoys working on cars, hunting, fishing, and exploring.   He is on the Executive Board for the Deer Creek Schools Band Boosters, HOA President, and a Tiger Cub leader for his son’s Cub Scout pack.  Scott and his wife Amy have been married for 21 years and have three children.  They love to go camping, are very active in their church, and live for the next road trip together!

4619 N. Santa Fe, Oklahoma City, OK 73118 • (405) 488-2400 office • (405) 488-2404 fax