This is my first post, but I need help with a problem! I had a pond dug in 1997, which is basically a 1 acre hole in the ground about 22 feet deep and the excavated material was hauled away for roadway embankment. It will fill with a 3" rain, no problem. But it loses water at a rate of about 3 feet a month. In one corner, while excavating this pond I encountered a rock shelf and I suspect this is my problem area, but I really don't know. Now that the pond is full from the recent heavy rains, the rock shelf is under 10' or so of water. Is there any way for me to determine if in fact this is my problem area, and will bentonite cast into the water ever accummulate in the seeping area and form a seal? Thanks!
