koiguy1969
GIGGETY-GIGGETY!!
you need just build up the edge of your pond above grade. its as easy as using some 4" - 6" bender board type landscape trim around the edge fastened (screwed) to some stakes. you can fasten the bender board to the stakes perfectly level no matter the level of the terrain then use the dirt from your dig to back fill up the appropriate level after dropping in the liner and filling. this will make your pond perfectl level and hide the excess liner at the same time...taper the dirt away from the pond for run off !!