I vaguely remember (not necessarily entirely accurate): Behind the arcade stage
Opposite the lab security room, next to Mangel
Lobby, right side of the entrance
Medical room, in the green area
Top of the climbing frame, outside the fence
Sewer suspension bridge, inside the locked door (chain door)
Inside a closet in the underground parking garage passageway
Uncertain:
Office area?
Music room
Warehouse shelves
Hacking tool acquisition area
You can use the radar system obtained from the lab security room to ensure you can investigate the location of these items.