Transplanting sumac (Indian lemonade)

[Cynthia Donahey]

There are quite a few sumac (smooth) I think. growing on parts of my
landfill.  It is supposed to be cleaned up and recapped soon - how soon
depending on what that material is in a puddle in the access road. 
Anyway, can it be hacked off low, and replanted elsewhere - or would that
kill the plant.  It's a seventies landfill - and I have often wondered if
the berries contain any toxins.  Otherwise, I would have made some
lemonade.