PASADENA, Calif.--(BUSINESS WIRE)--Tetra Tech, Inc. (NASDAQ: TTEK) today announced results for the third quarter ended June 28, 2015. Third Quarter Results Revenue in the quarter was $575.1 million and revenue, net of subcontractor costs1, was $421.9 million. Revenue and revenue, net of subcontractor costs, increased 2% and decreased 1%, respectively, in the third quarter of fiscal 2015 compared to the same period in fiscal 2014, excluding the wind-down of the Remediation and Construction Manag