I always wondered what happens in the facility where they get "illegal" items, do they just dump the batch in the common trash? Do they have people separating what is good from what is not? And if they have people separating, does it matter if people follow the recyling guidelines?
From what I’ve heard, you can expect everything to be dumped in the common trash. Depending on the company, that may be all that happens even if the recycling doesn’t have anything non-recyclable mixed in.
Once worked for a municipality when the contracted garbage collectors complained that there was too much recycling in the trash and the other way around. They essentially have to trash everything in the recycling if it's contaminated.
We had to do some public information campaigns to try reduce it or the company would raise their rates, which would affect tax payers. The message did seem to get across to people, as the company stopped complaining.
I work at condos and every single one of our recycling bins would be considered "contaminated" every single time. I imagine it's the same at every condo since you can't control what every person is throwing in. If they just dump the "contaminated" bins, they probably toss out 100% of the bins they pick up from multi residential buildings.