Tetra Tech Awarded $17.9 Million Governance Program for USAID in Haiti

Tetra Tech, Inc. (NASDAQ:TTEK) announced today that it has been awarded a $17.9 million contract to support U.S. Agency for International Development (USAID) justice and governance programs in Haiti. The five-year effort will be executed by the Company’s DPK Consulting division.

"Tetra Tech is committed to providing practical, sustainable solutions that help people around the world face serious social and environmental challenges,” said Dan Batrack, Tetra Tech’s Chairman and CEO. "A strong justice system is a key pillar to a strengthened democratic system in Haiti, which in turn will lead to economic growth and stability for Haitian citizens.”

Under the USAID Haiti program, Tetra Tech will provide specialized technical assistance to help improve the skills of prosecutors and strengthen the capacity of judges. Working with justice sector and civil society leaders, the business community, and citizens, Tetra Tech will help implement education and reform programs and improve the rule of law.

About Tetra Tech (www.tetratech.com)

Tetra Tech is a leading provider of consulting, engineering, program management, construction, and technical services addressing the resource management and infrastructure markets. The Company supports government and commercial clients by providing innovative solutions focused on water, the environment, and energy. With more than 10,000 employees worldwide, Tetra Tech’s capabilities span the entire project life cycle.

Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions ("Future Factors"), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section "Risk Factors" included in the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission.