What you are seeing on the dam is normal. My question is did he also compact the pond basin with the sheepsfoot or just the dam core?

A pond level will rise and fall until the soil surrounding the pond is saturated.


www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).