One company here has voluntarily recalled cartons of chopped romaine lettuce because of possible listeria contamination, but no illnesses have been reported.

The lettuce was shipped both out of state and in state, according to the California Department of Public Health.

Steve Church, chief executive officer of Church Brothers of Salinas, Calif. — the marketing agent and part owner of grower True Leaf Farms — thinks all of the lettuce went out of state.

He said 2,498 boxes or cartons were shipped; 90 of those went to retail outlets and the rest went to institutional settings like restaurants.

“The FDA (Food and Drug Administration) is at our plant and we are cooperating and working with them,” Church said.

The recall covers lettuce from True Leaf with a “use by” date of Thursday, Sept. 29, and the box code is B256-46438-8, said spokesman Ken August of the public health department.

Consumers would not see those codes that are on packaging, Church said.

The lettuce, in 2-pound bags, was shipped to an Oregon food services distributor and also may have gone to Washington and Idaho, Church said.

“It is a relatively small amount of product,” said Scott Horsfall, chief executive officer of the Leafy Green Marketing Agreement group. True Leaf Farms is a member of the marketing agreement instituted to improve testing and safety in leafy green vegetables after the 2006 E. coli outbreak in spinach in the area.

“This is one of those recalls that happen every now and then,” he said. “It’s listeria, so it’s obviously something we are going to watch.”