I see the new attachment and don't see a problem. It looks doable to me. Of course, that assumes that you have good soils and a dozer driver who knows how to do a pond and dam right. This means that he knows local soils and knows the value of a core trench. If he just wants to pile and pack dirt, find someone else.
BTW, the best book I've seen is by Lusk. It's called "Perfect Pond...Want One?". Might be the best investment you could make. Call the Pond Boss office if interested.
I had an experienced dozier guy check it out. He said it looks like mostly good clay and he has done several ponds. He said it was doable and said it would need to be cored.
I just checked the pond and the level is down I guess 1' from the winter level. I'm puzzled and wonder if its a problem. We have gotten quite a few inches of rain lately and the spring is still slowly flowing. The dam that is there now may have just been pushed up and not cored, as a quick water hole for cattle. Could the pond be leaking or could there some issue with the spring or water table?
I'll be picking that book up soon. I'm not planning on building or making this one bigger until next year.
Thanks
Edit: Here is a pic from about 1 month ago looking downhill. It's just a little bit lower now. The spillway is to the left far side and was running over around January. The spring flows in the front and center of the pic. We had a long dry period until recently though. The spring coming downhill also has a lot of big trees and growth. The builder said it would really open up if that was cleared.
