Tetra Tech Inc. said Friday that it was awarded a worldwide remediation services contract by the U.S. Army Engineering and Support Center that will include overseeing the cleanup of unexploded ordnance and other hazardous materials.

The Pasadena engineering company said it is one of seven large businesses that were awarded this five-year contract, which has a total value of $965 million.

The contract includes cleanup anywhere munitions are or have been stored, disposed of, or used for training. Tetra Tech has held similar contracts since 2000.

“These cleanup activities will help the U.S. Department of Defense achieve its base realignment and closure goals and support the military munitions response program worldwide,” said Chief Executive Dan Batrack in a press release.

Shares were down 68 cents, or 2.5 percent, to $26.50 in midday trading on the Nasdaq.