Camp Foster serves as the headquarters for MCB[clarification needed]Butler and as the Okinawa office of United States Forces Japan. Among its amenities are a large exchange with an adjacent food court, bowling alley, skate park, performing arts center and movie theater. The base operates three schools: Zukeran and Killin elementary schools and Kubasaki High School. The base's housing units include Kishaba, Chatan, Futenma, Plaza and Sada.
In October 2013 Japanese officials entered the base with US permission to look for buried cultural properties. They discovered dozens of abandoned metal drums, but did not report this to the Ginowan city's mayor until March 2014. Members of the Japanese defense ministry's local bureau and Ginowan city visually inspected the site, as part of its cultural property research and "no unusual odor or color change in soil" was detected. Also apparently no health problems have been actively "reported by residents living around the base". Ginowan city government had called the Japanese defense ministry's to investigate for "possible environmental impacts". The Japanese Defense Minister Itsunori Onodera said: "We will take appropriate measures in cooperation with the United States and the city of Ginowan" as they plan environmental studies on soil in the week of March 18, 2014. The United States rarely allow environmental inspections on U.S. bases not planned for return to Japan.