Space shuttle Columbia part found in East Texas

(CNN) - Authorities in a Texas city found material from space shuttle Columbia that had fallen into a local lake.

NASA calls the object, which is 4 feet in diameter, a PRSD: power reactant storage and distribution, said Lisa Malone, a spokeswoman for the agency.

The object is a tank that provides power and water for shuttle missions, she said.

"It's one of ours," Malone said, adding that NASA is trying to develop a plan to recover the item. "We're looking into whether we'll send a team out or local authorities can."