I had a contractor out this past Sunday. He suggested we keep clearing the site to get a better view of what we are dealing with. He also recommended that we dig some test holes with a backhoe to get a better idea of what the soils are like.

After looking at the watershed and using the Google Planimeter I think the watershed is between 65 and 70 acres.

Here is my idea for the bottom drain. I will be able to drain off the water for the duck pond that will be below the main pond and for winter drawdowns. Combining the two will help save some money because I was going to add a siphon system as well.