# Filing Detail

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)

EIN.: 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