Can this log load anywhere besides Storage? I've checked everywhere, including the grenade launcher room. No luck.

It's the last one I need (assuming there are 150 logs, counting the ones you get later in Security).

I started a new run and found it right next to the grenade launcher. I think it must be like the Security one that falls into the wall near the benches, it was borderline clipping into it. Maybe an explosion or something knocked it out of reach in the wall geometry.