Thank you for the information. I absolutely want to get the pond sealed. I hope to keep the cost in the "4" digit figure range if possible.

Fortunately, I never really stocked the pond due to the leak. So I won't be too upset if we have to drain it.

I am located near Bruceton, TN (Carroll County), maybe 1.5 hours from Columbia.

I will call the gentlemen at Gray Construction and inquire about an on-site evaluation.