Well, I finally started constructing my pond. I rented a backhoe with a 15� extend-a-hoe and dug it out in about 5 days over the Labor Day holiday. This was my first experience with heavy equipment, but I was very happy at how it worked out. If I had to do it again, I would rent an excavator and saved myself a couple days work. Now the pond is dug and filling with water from the past couple months of rain storms. We have very heavy clay and it appears there is little seepage.