Thanks for the information guys! Very helpful suggestions. One point that Mike made regarding deep rooted plants for a run off filtration strip I would like to explore. I have spoke with Bill Cody about this issue, and would like to get your input as well. I have a field tile that runs directly into the pond. Obviously the run off from the field directly into my pond is not a good thing. The area that the tile runs into used to be four feet deep, now it is about two with heavy muck in the bottom. The farmer has offered to sell me five acres to help filter the run off, but with the prices of land in my area I would like to try a less expensive approach. Bill suggested possibly diverting the tile or digging a retention area where the tile runs into the pond to make a staging area for the run off before it goes directly into the pond. Now would be the time to do this because I have some heavy equipment working on construction out there now. Any thoughts are appreciated.