Kevint,
We need some more information to promote speculation on this project.
When you say a "3' pipe through the berm", is that a 3' diameter pipe? If so, then I expect it is not running full most of the year, but is somewhere from a trickle to a steady flow X inches deep when it has not rained recently.
Your available water flow plus the 10' available drop makes several types of powered projects possible. Either generating electricity (to run a commercial "solar-powered" aeration system) or pumping water and using a system like Cecil's to aerate that flowing water.
One of the main things you mentioned wanting to improve is the water clarity. I think you probably need to run a jar test to measure the turbidity in your pond. If suspended clay is your problem then you probably need help with chemistry rather than aeration. If your water clarity is low due to an algal bloom in your pond, then that is probably good for your bass since that is the base of the food chain.
