Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has been awarded two contracts to support the U.S. Environmental Protection Agency (EPA) in its efforts to reduce emissions of methane, a potent greenhouse gas and potential source of clean energy. The first is a five-year, $22 million indefinite delivery/indefinite quantity contract to provide technical and outreach support services for EPA’s Natural Gas STAR program. Natural Gas STAR is a voluntary partnership program that encourages oil and natural gas companies to adopt cost-effective technologies and practices that improve operational efficiency and reduce methane emissions. The second is a five-year, $10 million blanket purchase agreement to support EPA’s agricultural methane reduction programs, which aim to reduce emissions from livestock and agro-industrial wastes domestically and internationally by promoting the use of anaerobic digestion systems. Domestically, EPA promotes biogas recovery systems at livestock operations through the voluntary AgSTAR program, which provides information and technical assistance related to these efforts. “The Natural Gas STAR and AgSTAR programs aim to help EPA and industry partners improve efficiencies, reduce emissions, and generate additional revenues through clean energy applications,” said Dan Batrack, Tetra Tech’s Chairman and CEO. Both programs represent an important part of the EPA Climate Change Division’s commitment to working across the United States as well as with partner countries to reduce methane emissions through the Global Methane Initiative (GMI). GMI is an international public-private initiative that advances cost-effective, near-term methane recovery and use as a clean energy source to stimulate local economic growth, create new sources of affordable alternative energy, improve local air and water quality, and increase industrial worker safety. About Tetra Tech ( www.tetratech.com) Tetra Tech is a leading provider of consulting, engineering, program management, construction management, and technical services. The Company supports government and commercial clients by providing innovative solutions to complex problems focused on water, environment, energy, infrastructure, and natural resources. With more than 13,000 employees worldwide, Tetra Tech’s capabilities span the entire project life cycle.