Mike,

Not to rain on your parade, but based on your other threads, how are you going to keep your pond full even with the installation of a liner?

Are you going to use surface run-off water? Based on your description of the slope of your property, that may be possible? Are you going to pump some water from your creek?

P.S. I forgot to add one important comment in your other threads. Have you looked at the satellite image of the properties around you? If there are a fair number of ponds in the area, then it is likely you can build a pond with the soil materials available to you.

Do you know any of your neighbors with ponds? That is an excellent resource to determine if they have surface water ponds, groundwater ponds, used a liner, etc.