Ground Zero may soon be under new management.

San Francisco-based Bechtel Corp., one of the world's largest engineering and construction firms, may take over the $2.5 billion cleanup operation of the World Trade Center site, said Bob Mann, chairman of E-J Electric Installation Co.

Bechtel, which has worked on the site since Sept. 12, is now in discussions with Mayor Rudolph Giuliani and New York City officials, according to a Nov. 19 article in Engineering News Record . The article stated that the plan to bring in Bechtel has unnerved the contractors on the World Trade Center site. "The cleanup's four key contractors, who have been on site since the attacks, are worried about their future status under Bechtel," according to the article.