<SEC-DOCUMENT>0001047469-17-000242-index.html : 20170118 <SEC-HEADER>0001047469-17-000242.hdr.sgml : 20170118 <ACCEPTANCE-DATETIME>20170118165558 ACCESSION NUMBER: 0001047469-17-000242 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 35 CONFORMED PERIOD OF REPORT: 20170302 FILED AS OF DATE: 20170118 DATE AS OF CHANGE: 20170118 EFFECTIVENESS DATE: 20170118 FILER: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECH INC CENTRAL INDEX KEY: 0000831641 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-ENGINEERING SERVICES [8711] IRS NUMBER: 954148514 STATE OF INCORPORATION: DE FISCAL YEAR END: 0928 FILING VALUES: FORM TYPE: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 000-19655 FILM NUMBER: 17533958 BUSINESS ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 BUSINESS PHONE: 6263514664 MAIL ADDRESS: STREET 1: 3475 EAST FOOTHILL BOULEVARD CITY: PASADENA STATE: CA ZIP: 91107 </SEC-HEADER> <DOCUMENT> <TYPE>DEF 14A <SEQUENCE>1 <FILENAME>a2230690zdef14a.htm <DESCRIPTION>DEF 14A <TEXT> Document 1 - file: a2230690zdef14a.htm
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