Here are some pics. This first is from the deck. If you look closely, you can see surveyor's tape around the outside perimeter of what would be the pond. It probably will not go much further downhill (left) than the existing pond.
The next one helps to better define the elevation:
This is a pic from the pondsite toward the house:
And this is a video of the mud ball:
and a picture of the test hole:
