Max depth is about 15' but there's a lot of 3-8' depth in the majority of the water. We don't have aeration but I am considering getting a solar powered set up. There is no spring feeding it but we have a large watershed that keeps the pond close to full volume except for an occasional strong hot/dry period of long duration. Over the 18 years or so I've lived here, the pond may have dropped up to 2 or 3 vertical feet at most maybe three times.
Make sure you are sitting down when you look at solar aeration prices....... If at all possible I'd go with a grid based system if electricity is available.
You don't have to have electricity at the pond, you can trench 1" black poly line in and terminate at the shoreline in a valve box, then split to self-sink tubing for the pond.
