"Did you have any discussions about watershed for your site?"

The county civil engineer came out and inspected our site, and gave us a permit.

He suggested a pond with a berm perimeter, and NOT to use runoff and existing drainage ditches to fill the pond.

He told us the ground water/springs in the area will be sufficient. We told him we'd be going 20ft deep, and he said we will not have a problem holding water, that we'd hit the clay we need.

He gave us soil maps of the area (I have yet to get my hands on them, my brother has them).

However, they clay I hit at 12ft was not the type of clay I expected, it seemed more like compacted & layered silt.

I guess I need to dig a few more holes, and try to get to 20ft.

From what this Engineer said, we have 6-7 different soil types on our 63 acres...

I have some more digging to do, plus try some of the clay tests I read on this site...