Management Team

Concord Engineering Group's team of professional engineers possess a diversity of talent and experience that provides our clients with the knowledge, the background, the skill, and unique perspective on their projects.

Bill Gretta, PE

Sr. Vice President, Concord Management Services


Mr. Gretta has over 25 years of experience in the air pollution control industry, and specializes in the design of CO and SCR catalyst and systems for natural gas and coal-fired utilities, as well as smaller scale engine generator plants. His expertise in SCR systems and gas flow modeling of air pollution control equipment are recognized throughout the industry.

Mr. Gretta holds a MS in Mechanical Engineering from Lehigh University and a BS in Mechanical Engineering Technology from Penn State University.