I'll ask the same question but in a slightly different way.
If I were a base commander, a wing commander or a unit commander, and I didn't know that there was contamination in the area I was working in, that would go unnoticed unless someone had that expertise and recognized they're dealing with or working with contamination.
If you don't know, how would you be able to report that? If you don't know what you're working with, how do you find out? I mean, the reporting system is based on knowing and identifying what contaminated sites are.
That question can go to anybody.