First contractor said "No problem...we can use the pond."
Second contractor (and a third that I've not talked to, but just randomly mentioned to wife) says my pond (1 acre +/-) is "...too small to be efficient..."
Course, the last guy is just an idiot kid I've known for years, and he's just a gopher for one of the main dirt contractors around here.

Whaddaya think? Is 1 acre in SE Iowa too small? Not from what research I've done...but I don't claim to know much about this stuff.