You may be able to make out 120-B Vehicle Search Building. I found out that Wackenhut is providing the security service for the area still. It is still owned or under the control of the DOE, they still have regular Federal and State monitors come out to do soil, air and water sampling.
There are usually 3 Patrol cars that station on Indiana, Highway 128 down from the Wind Site and one unit patrolling onsite 24-7.
Pete