Yes, I was thinking about that the other day. Why didn't I plumb a water line out of the house when I built it...and just leave is capped somewhere in the yard!
My builders are amish....not really the authority on insulation or electric :p
You might want to run a chunk of "clear core" into the shop, below the frost line, before you pour the slab. You could always come off of your pump house if that's what you have.
