I dug a 100' trench across my property and and am now diverting all the runoff from one part of my yard through a pipe under the driveway and into the pond. It has helped out a lot as now I am able to maintain full pool about 10 months of the year. I still have to supplement from the well some in the dry times but I only dropped 18 inches last year compared to up to 3 ft in previous years. So if you can divert the water it will help even if only a little as in my case.

Bob