I had a new pond dug with a dozer. It is about 50 feet wide by 150 feet long. On about 1/2 of the bottom and on the uphill side we hit shale and unfortunately it leaks. It has had up to about 3 feet of water in it but it leaks out in about a day.

I would like to line it with clay. Can someone please tell me about how thick I would need to make the clay lining?

Thanks,
B2620 ;\)