We strive for clean air because we depend on it.

Our Team

Cory Foytik

Principal at Comal Emissions Testing, LLC

With over 20 years of experience in the field and in leadership roles at industry-leading companies, Cory brings extensive expertise to his team and clients in the emissions testing sector. Holding a B.S. in Chemistry from Texas State University, Cory brings a wealth of knowledge and skill to the team. His commitment to efficiency, accuracy, and safety ensures top-tier service. Comal Emissions Testing is ready to meet your emissions testing needs with excellence.

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Dustin Schriewer

Partner at Comal Emissions Testing, LLC

Dustin is a Texas A&M graduate with over 15 years of experience in the oil and gas industry, where he specialized as a subsea engineer managing complex equipment, project execution, and global safety standards. He has since transitioned his expertise into the emissions testing sector, bringing a deep understanding of operational systems, regulatory environments, and technical precision. Known for his relentless work ethic and hands-on approach, Dustin drives projects forward with efficiency and accuracy. As Partner at CET, he is committed to delivering reliable, high-quality solutions while leading with integrity.

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Brandon Day

Brandon brings three years of stack testing experience, along with several years of laboratory experience in non-stack testing fields. Holding a B.S. in Biology with a minor in Chemistry from the University of Oklahoma, Brandon is QSTI Group 1 and 3 certified.

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