The guys that put in the pipe went by the pond over the weekend and packed in a bentonite slurry around the entrance to the pipe.
The water level had dropped another inch or so.
I went down behind the dam yesterday. Zero water coming out beside the pipe. I suspect it has as much to do with the water level dropping to just covering the bottom half of the pipe entrance into the dam, as the bentonite slurry.
The othe leak has almost stopped too. That tells me, it must start up pretty high on the sam also.
I'm just going to wait and see what happens with the next rain..

9 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (going away), SMB, and HSB (only one seen in 5 yrs) Restocked HSB (2020) Have seen one of these.
I think that's about all I should put in my little pond.
Otter attack in 2023