Tetra Tech Awarded $125 Million U.S. Navy CLEAN Contract

2008-05-31 01:05:21 -

www.tetratech.com - Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has been awarded a Comprehensive Long-Term Environmental Action Navy (CLEAN) contract with a value of up to $125 million. Tetra Tech will provide program management and technical environmental services in support of environmental programs to the Naval Facilities Engineering Command, Atlantic (NAVFAC Atlantic). The new contract will expand the

geographic footprint of Tetra Tech's CLEAN contract awards. This single-award, indefinite delivery/indefinite quantity contract has a one-year base period and four one-year options. The contract type is cost reimbursement plus award fee.

Tetra Tech will provide technical support to the U.S. Department of Defense's Environmental Restoration Program (ERP), including U.S. Navy and Marine Corps Base Realignment and Closure (BRAC) efforts. The contract will also include unexploded ordnance support for the Military Munitions Response Program (MMRP); environmental services for fuel sites; expedited response actions; range sustainment activities; and other environmental programs.

Dan Batrack, Tetra Tech's Chairman and CEO, said, "Tetra Tech has been supporting NAVFAC Atlantic's environmental restoration mission since 1982, and we are very pleased to have been selected for this contract. Tetra Tech is committed to providing the Navy with the best technical and customer service available."

About Tetra Tech (www.tetratech.com)

Tetra Tech is a leading provider of consulting, engineering, and technical services. With approximately 8,500 associates located in the United States and internationally, the Company supports commercial and government clients in the areas of resource management and infrastructure. Tetra Tech's services include research and development, applied science and technology, engineering design, program management, construction management, construction, and operations and maintenance.

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.

Tetra Tech, Inc.
Jorge Casado, Investor Relations
Talia Starkey, Media & Public Relations
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