About Edge

Given the complex landscape of environmental regulations, you need a consultant with the knowledge, experience and expertise to guide you through every turn. EDGE Engineering & Science, LLC is a privately owned environmental consulting firm headquartered in Houston, Texas, with an additional branch office in Baton Rouge, Louisiana. Established in 2010 with the primary goal of providing high quality environmental engineering and scientific consulting services, EDGE has assembled a highly qualified team with the knowledge and experience to execute a range of services for every stage of a project. With proven results and a relationship-driven service approach, EDGE adds a fresh perspective to all of your environmental challenges.

Management Team

J Scot Vann, P.E.
President & CEO | Houston, Texas

Mr. J Scot Vann, P.E., is President and CEO of Edge Engineering and Science, LLC (EDGE) and has been working as a consultant in the environmental engineering field since 1996. Scot drives EDGE’s growth and success via strategic organizational planning, coordination between practice areas, resource acquisition and allocation, and client satisfaction.

Throughout his career as a consultant, Scot has focused on excellence in air quality permitting and compliance services. His specialties include managing air permitting projects, compiling emissions estimates, auditing environmental compliance and management systems, facilitating emission credit banking and trading, conducting environmental compliance assessments, evaluating control technologies, developing and implementing environmental management information systems, performing regulatory analyses and applicability assessments, and conducting air dispersion modeling evaluations. Scot’s extensive experience includes serving clients, located throughout the U.S. and internationally, in the oil and gas, chemical, energy, electric utility, manufacturing, waste management and shipbuilding industries.

Scot holds a Master of Science in Environmental Engineering from the University of Texas in Austin and a Bachelor of Science in Civil Engineering from Texas A&M University in College Station.

Contact Scot

Shawn Lixey
Vice President | Houston, Texas

Mr. Shawn Lixey is Vice President of Edge Engineering and Science, LLC (EDGE) and leads the NEPA Practice. Shawn has been working as a consultant in the environmental field since 1993. He is responsible for ensuring EDGE’s success via management of daily operations, marketing and client development, and strategic organizational planning.

During Shawn’s tenure as a consultant, he has excelled at providing clients time- and cost-effective solutions to natural resource permitting challenges. His specialties include conducting feasibility studies, developing linear routing and constraint analyses, developing permitting and implementation strategies, designing and implementing field programs, preparing and managing NEPA documents, managing state and federal permitting, and managing environmental compliance during construction. He has also managed environmental compliance issues associated with the operation and maintenance of oil and gas pipeline systems and associated facilities. Located throughout the U.S. and internationally, Shawn’s clients operate in a range of industries, including oil and gas, chemical, energy and electric utility.

Shawn holds a Master of Science in Environmental Science with a concentration in toxicology from the University of Houston at Clear Lake and a Bachelor of Science in Marine Biology from Texas A&M University in College Station.

Contact Shawn

Christopher J. Colville, P.E.
Partner | Houston, Texas

Mr. Christopher J. Colville, P.E., is a Partner at Edge Engineering and Science, LLC (EDGE) and leads the Air Quality Services Practice.

Since 2000 when he joined the environmental field, Chris has consulted with both private- and public-sector clients to optimize air quality and multimedia regulatory permitting and compliance strategies. Chris specializes in managing air permitting projects, performing air quality dispersion modeling evaluations, conducting air quality research, managing optical remote sensing emission measurement studies and providing technical expertise in support of litigation.

Chris serves private-sector clients located throughout the U.S. in the oil and gas, chemical, manufacturing, aggregates and petroleum refining industries, as well as public-sector state regulatory agencies.

Chris holds a Master of Science in Civil and Environmental Engineering from Duke University in Durham, North Carolina, and a Bachelor of Science in Agricultural Engineering from Texas A&M University in College Station.

Contact Chris

H. Trevor Loveday
Partner | Houston, Texas

Mr. H. Trevor Loveday is a Partner at Edge Engineering and Science, LLC (EDGE), and directs Third-Party NEPA Services within the NEPA Practice. Trevor has been working in the environmental field since 1996.

During Trevor’s career, he has focused on providing high quality consulting services to streamline NEPA and permit reviews. Trevor has specialized in providing environmental expertise to oil and gas and energy projects, including managing environmental permitting, managing and developing third-party environmental impact statements and environmental assessments, developing and managing applicant-prepared environmental assessments, and managing construction monitoring programs.

Trevor’s private-sector clients, located throughout the U.S. and internationally, operate within the oil and gas (including LNG), chemical, energy and electric utility industries. He has conducted third-party reviews for the Federal Energy Regulatory Commission (FERC), Bureau of Land Management, U.S. Department of State, U.S. Department of Energy and U.S. Coast Guard.

Trevor holds a Master of Science in Aquatic Biology from Stephen F. Austin State University in Nacogdoches, Texas, and a Bachelor of Business Administration in Finance and Economics from Baylor University in Waco, Texas.

Contact Trevor