I can imagine a cleanup was ordered and some material was brought to the dock to be loaded on a barge to go somewhere. No containment, no tarp and total exposure to wind and rain with apartment buildings a half block away isn't how the energy department would handle hot isotopes and is clearly not a superfund site.

Unless this was done on the down low OR all rules and truth were overlooked in the new Rick Perry budget rules OR it was just plain gravel.

The Detroit newspaper has more reasons to make this story go away than Windsor. I would not have mentioned this story but for the reason it is a good example to watch as a cover up in real time.
1 a local tiny paper says something
2 a larger media with clients with something to lose tones down claims
3 the story is ignored and weasel words are heaped on
4 the watered down story is reported to be a silly mistake and evidence is removed.

Sounds like the 1st chapter of the movie Dark Water so don't worry

I'm not an engineer, I am an imagineer.