FORM 10-K

Company

TETRA TECH INC

Filed

December 31, 1998

Period of Report

October 4, 1998

Accession Number

0001047469-98-045681

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →