Has he ever stated what his plan is? I'm guessing he's trying to build an Arsenate reactor but that's just my hunch. Do we know for a fact what that mine in the backyard was for?
That was the video that made me discover his channel. I really like the concept of street sweeper dust being recycled into electronics, too bad he reasoned that it wouldn't be profitable.
I should probably get my lead levels checked, seeing as how nearly every house and public water system in New England is full of lead and I've lived here pretty much my whole life.
I remember my last apartment one of my roommates would boil up big pots of pasta sometimes and the steam would make the lead paint on the ceiling peel off and fall into the pot.