That reminds me of another weird thing about this. Before I built the original levee around 1993 they sent a good soil guy to look at this site and we did test holes all around the area flagged that would be the water line at the shore, and also from down inside what would be the lake bed. This sandy hill was outside the original water line and the slope was too much to drive a tractor on it, so we never really thought much about this particular area.
