Rea-Silvia Costin

Rea-Silvia Costin, Project Manager and Principal for the City of Jacksonville, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in design.

Frank James Castaldi

Frank Castaldi, Environmental Engineer and Consultant, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in civil and environmental issues, industrial water and wastewater treatment.

Thomas F. Zimmie, Ph.D.

Thomas F. Zimmie, Ph.D., Professor of Civil and Environmental Engineering at Rensselaer Polytechnic Institute, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in engineering and higher education.

John W. Barrier

John Barrier, Engineer and Management Consultant at Heritage Christian University, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in project management, chemical and environmental engineering education.

Gary Kelman

Gary Kelman, AFO Program Manager at the Maryland Department of the Environment, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in Environmental Engineering.

Richard A. Cassidy

Richard A. Cassidy, Retired Environmental Engineer and Water Resources Specialist, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in environmental engineering.