[Robert A Cook PE]

Legot uses (Co 60 for medicine) would require ONE ROOM for storage, dry, with NO WASTE WATER DRUMS. The Co is highly radioactive; very, very little else is.

Only minor waste like survey papers, filters, rags, uniforms, masks ... Simple low-level wastes.

[Ditto]

I defer to your knowledge, but it seems the way to get rooms full of very high-level stuff it by reprocessing spent fuel to extract plutonium.