President and CEO, Tetra Tech EC, Inc.

Senior Vice President, Remediation and Construction, Tetra Tech, Inc.

Don Rogers is the President and CEO of Tetra Tech EC, Inc (TtEC). Mr. Rogers joined TtEC in 1992. He has more than 32 years of experience in engineering and construction, including management responsibility for divisions performing environmental restoration and hazardous waste site remediation programs in 40 states and international locations. Mr. Rogers was previously Vice President of Enserch Development Corporation and Vice President of Ebasco Constructors. He earned a B.A. in Economics from the University of Bridgeport, an M.A. in Economics from the New School for Social Research, and an Advanced Executive M.B.A. from the Wharton School of Business at the University of Pennsylvania.

Mr. Rogers was named Senior Vice President and President of Tetra Tech, Inc.’s Remediation and Construction Group on December 1, 2005. He joined Tetra Tech, Inc. in March 2003 in connection with the acquisition of Foster Wheeler Environmental Corporation, which is currently known as Tetra Tech EC, Inc.