Great information, got us thinking. The house is actually on a hill, with a lower area to the South perfect for a pond. We will be 50'+ from the septic system and 100'+ from the road frontage. Problem: Built a house with a full basement and not thinking ahead about a pond at the time (hindsight)--now wanting to put one in. I can send pics to one who wants to see my probem area (m.schlegel@verizon.net). Right now we plan on the contractor and the Water & Conservation expert onsite for the initial hole where the dam would be. I just want to get this where I want it, but not cause myself majoy problem down the road. PS...I like all the reading, experiences, and knowledge I've been gaining on this site besides just reading books.