Hi Duncan,
I was not thinking about Pb free stuff. I am still a 60/40 type But Pb is the least of my worries. At my day job, one of my duties is heading up our HAZWOPER team. That stands for Hazardous Waste Operations and Emergency Response. Mostly the emergency response part.

As far as your waste disposal goes, sounds like you are "OK".

One thing I have heard about waste oil, and I do not know if it is true. It gets hauled to the cost and loaded on a ship. Once past the twelve mile limit a valve is turned. Now it is a fuel.