Good find! Thanks for the ping.
Interesting. Also very sharp detective work in connecting the two different stories.
Observations:
The road "north" of the facility is closed in the second image. The road "east" of the facility appears to have been repaved. I cannot discern any real road access to the facility in the second image.
"Northwest" of the central structure in the second image is the remnants of a wall from a building visible in the first image. You can't remove the dirt under a foundation with the foundation still in place. Why even leave the wall, but remove the rest of the building? Strange, but not supportive of hiding NBC contamination. Not discounting the original assertion, just noticing things.
Some original roads inside the facility remain. Others have been removed. Can't decontaminate under a road. I cannot see a pattern in which roads were preserved and which were removed, not plume shaped, not trafficability, no pattern at all. Best I can come up with would be extremely low grade contamination, at random spots throughout the facility. Anyone else?
Bundles, bundles in several locations. Recovered scrap to be sold? Trucking is the easy part. Tearing it out is what takes the time. What are these bundles?