PASADENA, Calif.--(BUSINESS WIRE)--Tetra Tech, Inc. (NASDAQ: TTEK) today announced the planned dates for its first quarter 2015 results and conference call. On Wednesday, January 28, 2015, after market close, Tetra Tech intends to announce its first quarter 2015 results. On Thursday, January 29, 2015, at 8:00 a.m. Pacific Time, Tetra Tech plans to host a conference call to further present and discuss the Company’s financial results and forward outlook. Investors and other interested parties can


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