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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000831641-18-000097
Filing Date
2018-11-16
Accepted
2018-11-16 15:30:07
Documents
108
Period of Report
2018-09-30

Document Format Files

Seq Description Document Type Size
1 10-K tt10-kfy18document.htm 10-K 2572724
2 EXHIBIT 21 ttek-ex21x10012018xsingles.htm EX-21 33657
3 EXHIBIT 23 ttek-ex23x10012018xsingles.htm EX-23 2222
4 EXHIBIT 31.1 ttek-ex311x10012018xsingle.htm EX-31.1 9083
5 EXHIBIT 31.2 ttek-ex312x10012018xsingle.htm EX-31.2 9068
6 EXHIBIT 32.1 ttek-ex321x10012018xsingle.htm EX-32.1 5466
7 EXHIBIT 32.2 ttek-ex322x10012018xsingle.htm EX-32.2 5480
8 EXHIBIT 95 ttek-ex95x10012018xsingles.htm EX-95 31356
15 chart-937b8605f69956cd851a02.jpg GRAPHIC 40863
  Complete submission text file 0000831641-18-000097.txt   11900636

Data Files

Seq Description Document Type Size
9 XBRL INSTANCE DOCUMENT ttek-20180930.xml EX-101.INS 2514198
10 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ttek-20180930.xsd EX-101.SCH 81914
11 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ttek-20180930_cal.xml EX-101.CAL 135574
12 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ttek-20180930_def.xml EX-101.DEF 370285
13 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ttek-20180930_lab.xml EX-101.LAB 1101758
14 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ttek-20180930_pre.xml EX-101.PRE 630730
Mailing Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107
Business Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 6263514664
TETRA TECH INC (Filer) CIK: 0000831641 (see all company filings)

IRS No.: 954148514 | State of Incorp.: DE | Fiscal Year End: 0930
Type: 10-K | Act: 34 | File No.: 000-19655 | Film No.: 181189727
SIC: 8711 Services-Engineering Services
Assistant Director 6