# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000831641-17-000022
Filing Date
2017-11-20
Accepted
2017-11-20 16:38:28
Documents
113
Period of Report
2017-10-01

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | ttek-10012017x10k.htm | 10-K | 2616175
2 | EXHIBIT 10.6 | ttek-ex106x10012017.htm | EX-10.6 | 71270
3 | EXHIBIT 21 | ttek-ex21x10012017.htm | EX-21 | 135861
4 | EXHIBIT 23 | ttek-ex23x10012017.htm | EX-23 | 2204
5 | EXHIBIT 31.1 | ttek-ex311x10012017.htm | EX-31.1 | 9072
6 | EXHIBIT 31.2 | ttek-ex312x10012017.htm | EX-31.2 | 9057
7 | EXHIBIT 32.1 | ttek-ex321x10012017.htm | EX-32.1 | 5566
8 | EXHIBIT 32.2 | ttek-ex322x10012017.htm | EX-32.2 | 5580
9 | EXHIBIT 95 | ttek-ex95x10012017.htm | EX-95 | 31358
16 |  | ttek-100120_chartx29368.jpg | GRAPHIC | 37739
| Complete submission text file | 0000831641-17-000022.txt |  | 12575352

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
10 | XBRL INSTANCE DOCUMENT | ttek-20171001.xml | EX-101.INS | 2530814
11 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | ttek-20171001.xsd | EX-101.SCH | 95859
12 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | ttek-20171001_cal.xml | EX-101.CAL | 148435
13 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | ttek-20171001_def.xml | EX-101.DEF | 438885
14 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | ttek-20171001_lab.xml | EX-101.LAB | 1203653
15 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | ttek-20171001_pre.xml | EX-101.PRE | 705758

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: 0928
Type: 10-K | Act: 34 | File No.: 000-19655 | Film No.: 171214195
SIC: 8711 Services-Engineering Services