The station has two main areas. One is the Inland Area, , which is inside the Concord city limits. The other is the Tidal Area, . Because of changes in military operations, parts of the Inland Area stopped being used. By 1999, the station had only a few military people working there. In 2007 the United States government decided to close the inland part of the station. The Tidal area of the base stayed open. The city of Concord is working on a plan for how to use the land. Their plans will have to be approved by the Navy.