Thanks guys,

Bill, I'm located in Byron so pretty close by. Did you build your pond?

Rainman, I do not have a tube under the driveway. The driveway was built up using surrounding soil. There is certainly some clay in it but I'm not sure how much. Road Rock was only used under the actual driveway portion which is 10' wide and about 12" deep.
Although I'm not sure where I'm losing the water, its very likely that I'm losing some there where my driveway is built up. However, the other side of the drive way is bone dry and never shows signs of water moving horizontally down stream.
I agree, I'll have to build up the water side of the driveway and add in a bentonite or clay. I also plan on adding bentonite or something to the rest of the pond bed. What are the recommendations adding a substance? Clay, bentonite, ESS-13, aquablok? I think I understand that its important to do apply the material right and compact it properly. I'm thinking the best way, considering my size of area and the steeper slopes is a skid loader with proper attachments.

Thanks for the help.

Trevor