All collectibles are inside the big building!
The first one, when you enter the building, there is one high up inside a former crane.
The container is also in this building entrance area, at the bottom level.
In the next room, Storage 3 is a bit higher up but still at the bottom levels of this "Turbine Room".
The container is in the center of the Turbine Room.
The container is inside a small room at the Turbine Room.
The Ark Chest is here as well.
Storage Container 6 is also in the Turbine Room, high up, left of the elevator.
Take the elevator up for Storage Container 7.