# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000831641-23-000082
Filing Date
2023-11-22
Accepted
2023-11-22 16:16:33
Documents
133
Period of Report
2023-10-01

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | ttek-20231001.htm iXBRL | 10-K | 2446963
2 | EX-21 | ttek-ex21q42023.htm | EX-21 | 18272
3 | EX-23 | ttek-ex23q42023.htm | EX-23 | 2069
4 | EX-31.1 | ttek-ex311q42023.htm | EX-31.1 | 8936
5 | EX-31.2 | ttek-ex312q42023.htm | EX-31.2 | 8946
6 | EX-32.1 | ttek-ex321q42023.htm | EX-32.1 | 5111
7 | EX-32.2 | ttek-ex322q42023.htm | EX-32.2 | 5122
8 | EX-95 | ttek-ex95q42023.htm | EX-95 | 16061
14 | GRAPHIC | ttek-20231001_g1.jpg | GRAPHIC | 83103
| Complete submission text file | 0000831641-23-000082.txt |  | 13470245

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
9 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | ttek-20231001.xsd | EX-101.SCH | 89141
10 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | ttek-20231001_cal.xml | EX-101.CAL | 150398
11 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | ttek-20231001_def.xml | EX-101.DEF | 446223
12 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | ttek-20231001_lab.xml | EX-101.LAB | 1097567
13 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | ttek-20231001_pre.xml | EX-101.PRE | 762332
127 | EXTRACTED XBRL INSTANCE DOCUMENT | ttek-20231001_htm.xml | XML | 2096798

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: 1001
Type: 10-K | Act: 34 | File No.: 000-19655 | Film No.: 231433698
SIC: 8711 Services-Engineering Services