Mac, I believe in northern mo the rule of thumb is 15 acres of watershed to feed a 1 acre pond. As for the well, 1 acre of water 1 inch thick is 27,000 gallons, I think it might be tough to maintain that large of pond with a well.
I'm pretty sure you could call the local fsa and get a courtesy visit to help you out.

Last edited by MARKALLEN; 02/22/09 11:42 PM.