Kahn Swick & Foti, LLC ("KSF") and KSF partner, the former Attorney General of Louisiana, Charles C. Foti, Jr., remind investors that they have until August 27, 2013 to file lead plaintiff applications in a securities class action lawsuit against Tetra Tech Inc. (Nasdaq: TTEK), if they purchased the Company’s securities during the period between May 3, 2012 and June 18, 2013, inclusive (the “Class Period”). This action is pending in the United States District Court for the Central District of California. What You May Do If you purchased shares of Tetra Tech and would like to discuss your legal rights and how this case might affect you and your right to recover for your economic loss, you may, without obligation or cost to you, call toll-free at 1-877-515-1850, or email KSF Managing Partner Lewis Kahn ( firstname.lastname@example.org) or KSF Partner Melinda Nicholson ( email@example.com). If you wish to serve as a lead plaintiff in this class action, you must petition the Court by August 27, 2013. About the Lawsuit Tetra Tech and certain of its executives are charged with issuing a series of materially false and misleading statements during the Class Period, in violation of federal securities laws. These false statements and omissions included, in part, that: (a) claims by customers and cost overruns created an acute risk that the Company would be required to take an earnings charge; and (b) decreasing demand for the Company's services would lead to project closures. On June 18, 2013, Tetra Tech revised its third-quarter outlook, announcing that it expected to lose $0.30 to $0.50 cents per share during the third quarter due to approximately $95 million in charges. On this news, Tetra Tech’s securities declined over 13%. About Kahn Swick & Foti, LLC To learn more about KSF, whose partners include the Former Louisiana Attorney General, Charles C. Foti, Jr., and other lawyers with significant experience litigating complex securities class actions nationwide on behalf of both institutional and individual shareholders, you may visit www.ksfcounsel.com.