Thanks Ric. Due to cost overuns, we did not line the whole 5 acres. Probably we lined one acre in the bottom, and now I figure we need to line another acre. 2' of clay over one acre would cost $10,000 is my best guess. You are correct, I need to take my best shot or highest probably shot, which would cost me $3,000. This would be over the ditch or stream bed. The reason I say this, this was where the small spring went under, in the lake floor, just further up the stream line.
Fortunately, clay is abundant. Unfortunately, due to the project running over double the estimated cost, I'm in a pickle.
Thanks for the dye tip. I did not recall this. Also, thank you for wishing me luck. I need it.