I've received a quote to have my power company get electricity down to my pond. $7,000. I am also exploring applying bentonite to the pond by having it placed in the pond that has about 10 feet of water in it currently. The guy that wants to do this states that he has sealed about 10 ponds this way. Any thoughts on if this will work. The bottom of the pond is essentially limestone. I'm at the point that I don't want to drop of money on something and have it not work again. Also if anyone has any experience with a good dirt contractor near Blanco, Texas that would be appreciated. I think I am going to talk with a few contractors this time before I move forward.