Call or visit ones a little further away. My FIL knows one, they said they throw all their scraps into a large bin, then they have to <b>PAY</b> someone to dispose of them. Calling the local solid surface countertop installer may be happy for you to take them off their hands.
If you deal with small-time shops, their cutoffs may not be as large, so the customers get it. If you call a big opperation, there's bound to be tons of it.