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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000831641-20-000154
Filing Date
2020-11-23
Accepted
2020-11-23 12:21:32
Documents
118
Period of Report
2020-09-27

Document Format Files

Seq Description Document Type Size
1 10-K ttek-20200927.htm   iXBRL 10-K 3105097
2 EX-21 ttek-ex21q409272020.htm EX-21 22405
3 EX-23 ttek-ex23q409272020.htm EX-23 2039
4 EX-31.1 ttek-ex311q409272020.htm EX-31.1 8953
5 EX-31.2 ttek-ex312q409272020.htm EX-31.2 8949
6 EX-32.1 ttek-ex321q409272020.htm EX-32.1 5189
7 EX-32.2 ttek-ex322q409272020.htm EX-32.2 5199
8 EX-95 ttek-ex95q409272020.htm EX-95 16222
14 ttek-20200927_g1.jpg GRAPHIC 88639
  Complete submission text file 0000831641-20-000154.txt   13643538

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ttek-20200927.xsd EX-101.SCH 80162
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ttek-20200927_cal.xml EX-101.CAL 152760
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ttek-20200927_def.xml EX-101.DEF 424256
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ttek-20200927_lab.xml EX-101.LAB 1059055
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ttek-20200927_pre.xml EX-101.PRE 687340
15 EXTRACTED XBRL INSTANCE DOCUMENT ttek-20200927_htm.xml XML 2428135
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: 0927
Type: 10-K | Act: 34 | File No.: 000-19655 | Film No.: 201335836
SIC: 8711 Services-Engineering Services