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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000831641-21-000110
Filing Date
2021-11-24
Accepted
2021-11-24 16:09:30
Documents
126
Period of Report
2021-10-03

Document Format Files

Seq Description Document Type Size
1 10-K ttek-20211003.htm   iXBRL 10-K 3050055
2 EX-21 ttek-ex21q410x3x2021.htm EX-21 23585
3 EX-23 ttek-ex23q410x3x2021.htm EX-23 2127
4 EX-31.1 ttek-ex311q410x3x2021.htm EX-31.1 9039
5 EX-31.2 ttek-ex312q410x3x2021.htm EX-31.2 9035
6 EX-32.1 ttek-ex321q410x3x2021.htm EX-32.1 5196
7 EX-32.2 ttek-ex322q410x3x2021.htm EX-32.2 5206
8 EX-95 ttek-ex95q410x3x2021.htm EX-95 16168
14 ttek-20211003_g1.jpg GRAPHIC 94270
  Complete submission text file 0000831641-21-000110.txt   13763162

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ttek-20211003.xsd EX-101.SCH 86016
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ttek-20211003_cal.xml EX-101.CAL 130216
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ttek-20211003_def.xml EX-101.DEF 369447
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ttek-20211003_lab.xml EX-101.LAB 1041128
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ttek-20211003_pre.xml EX-101.PRE 679320
15 EXTRACTED XBRL INSTANCE DOCUMENT ttek-20211003_htm.xml XML 2516268
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: 1003
Type: 10-K | Act: 34 | File No.: 000-19655 | Film No.: 211446519
SIC: 8711 Services-Engineering Services