Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has been awarded a five-year, $113 million contract to provide technical support services for the U.S. Environmental Protection Agency (EPA) Office of Water. Under this multiple-award contract, Tetra Tech will support the EPA Office of Water’s Assessment and Watershed Protection Division in its efforts to assess and monitor water quality conditions, develop comprehensive tools to promote watershed protection, study point and nonpoint source pollution, and develop strategies for ecosystem restoration.

Tetra Tech will provide technical services to support the EPA’s mission in meeting the broad requirements under the Clean Water Act which affect rivers, lakes, streams, wetlands, and coastal waters in the United States. These services include the development of water quality and economic models, preparation of technical guidance documents and analytical methods, and development of innovative management strategies to protect and reuse watershed. Tetra Tech will work with EPA regions, states, and other stakeholders on data analytics and the interpretation of water quality, land-use, and spatial data.

“Tetra Tech’s scientists and researchers have supported EPA’s watershed management programs continuously since 1989,” said Dan Batrack, Tetra Tech Chairman and CEO. “We are pleased to continue developing innovative tools for EPA that advance the science of watershed assessment and protection of our nation’s water resources.”

About Tetra Tech

Tetra Tech is a leading, global provider of consulting and engineering services. We are differentiated by Leading with Science® to provide innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, infrastructure, resource management, energy, and international development. With 16,000 associates worldwide, Tetra Tech provides clear solutions to complex problems. For more information about Tetra Tech, please visit tetratech.com, follow us on Twitter (@TetraTech), or like us on Facebook.

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.