The Jefferson Parish Council on Wednesday approved a master site plan for a petroleum storage facility in Marrero, without a proposed expansion that had concerned neighbors.

Magellan Terminal withdrew its request to expand the facility on River Road from 53 terminals to 66 after nearby residents raised concerns about odors from the facility and the possibility that flammable materials could be a hazard.

The new master plan, which was unanimously approved by the council, will allow Magellan to replace one of the existing tanks on the site and add a railroad spur and heater to the facility.

Magellan spokesman Tom Byers said the company also is advancing with requirements the council imposed on the facility, including adding an alarm system and providing a phone number for residents to call in case of strange odors.

The company is moving to install the alarm, which would warn nearby residents if there is a need to evacuate the area due to a problem at the facility, Byers said. However, he said, that system needs to be approved by the U.S. Army Corps of Engineers before it is installed because the alarm will be mounted on a pole that must be put in place by drilling into the ground near the Mississippi River.

The number residents can call to report odors is (504) 371-3933.