Thanks for the reply. I think you may prove to be a great resource. The land we're looking at is in the Cameron to Chillicothe area. I'm glad to hear you post, because it has been hard for me to imagine, to this point, that it would be difficult to find soil that is not well suited to pond building. There seems to be a large number of large ponds (10+ acres) in the general area we're looking, so it seemed to me that the soil in the area seemed well suited (generally speaking) to pond building. I'm glad to hear from you that you still have to be cautious in this area.
I would be most grateful if you could pass on the names of any folks you have found helpful. And I'd be thankful for any other advice you can offer.
Mac