Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000913414-09-004058
Filing Date
2009-02-05
Accepted
2009-02-05 13:36:02
Documents
1

Document Format Files

Seq Description Document Type Size
1 tetra123108.txt SC 13G 31615
  Complete submission text file 0000913414-09-004058.txt   33996
Mailing Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107
Business Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 6263514664
TETRA TECH INC (Subject) CIK: 0000831641 (see all company filings)

EIN.: 954148514 | State of Incorp.: DE | Fiscal Year End: 0930
Type: SC 13G | Act: 34 | File No.: 005-43035 | Film No.: 09572215
SIC: 8711 Services-Engineering Services

Mailing Address 400 HOWARD STREET SAN FRANCISCO CA 94105
Business Address 400 HOWARD STREET SAN FRANCISCO CA 94105 4155972639
BARCLAYS GLOBAL INVESTORS NA /CA/ (Filed by) CIK: 0000913414 (see all company filings)

EIN.: 943112180 | State of Incorp.: CA | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000