Thanks Bill, funny story.......I actually have talked to a county soil scientist on a couple of occasions. He's extremely knowlegable about the local soils, permability and suitability for different crops/rotation etc. Beyond below 60" he really doesn't have a lot of input on clays for pond building etc. He did tell me to check out a website called Pond Boss for techniques to determine pond soil suitability.......he is what brought me to this site