Dave,
I have tried to ask some dragline questions here. I don't believe we have an operator that posts. (But I could definitely be wrong.)
Have you tried posting on the Heavy Equipment forum?
I have three dragline ponds on my property, but I believe they are 90 years old. They capture water very well, but they leak because the sides were not sealed during construction. They are essentially "groundwater" ponds at this time.
Good luck on your project!
