Maybe someone can explain this to me.
I'm working with my plumber on a job. We are installing an underground water tank to use for a small coy pond and an irrigation system. The tank is fed from a small creek and has a submersible pump. I had all the wiring done and the well guy was wiring the pump in the tank and got shocked.my emphasis
Are you SURE the guy wiring the well pump didn't transpose a couple of wires?
What I'm saying is you can bond and ground everything to the 9th degree, but not enough "let-through" current will happen to blow a protective device.
This is why plumbers should stick to running pipes and leave the complex stuff to us.