There is no "correct" drain pipe in the dam. I was told by the previous owner that the pond was cut to overflow at the corner of the dam. There are a bunch of small 4" diameter pieces of plastic pipes in the woods that look like scraps. I can only assume that longer sections are buried at one corner of the dam. I do not think the government was involved at all in this pond construction.
I do not see any evidence of water around the backside of the dam. It has to be leaking at the bottom.
