PASADENA, Calif.–(BUSINESS WIRE)– #hydropower–Tetra Tech, Inc. (NASDAQ: TTEK), a leading provider of high-end solutions in water, environment, and sustainable infrastructure, announced today that Tetra Tech was selected as lead design engineer, as part of the Kuney Construction and J.F. Brennan team, to provide planning, assessment, engineering, and construction services for the Progressive Design-Build (PDB) Hydropower Dam Spillway Modernization Project for Chelan County Public Utility District (PUD). Un