chatlanha
Ask if the ag supply truck can "block" one side of the spreader on the back of the truck thereby throwing the lime only toward the pond side. My ag supplier has one truck that can do that but most in his fleet do not. I just make sure he knows that I want that truck.
If you cannot get the truck all the way around your pond another option would have the truck parked in a few locations and just let out a large amount of lime.
If you wait for the pond to fill another option is a lime barge that basically is a pontoon boat on which lime is shoveled and then using gas powered pump washed off the barge into the water. You can get great coverage and distribution.
Frank