I am still in the planning phases for a few pond sites.. but trying to read and understand before I start moving dirt...
On my property, I have recently dug for soil samples and to get dirt for covering culverts. I noticed in several places I have dug, I hit good clay but with seams of ground water running thru. Some spots where I have dug have had nearly 1.5 inches diameter holes that would rush in water at a rapid rate and quickly fill my small hole. Almost like I had hit a water main... this has occurred anywhere from 1 foot to 3 feet below the surface and some areas where I wanted to dig my pond.
the Idea of ground water is great for helping keep my pond full, but how do I plan for water to come into my pond without having water leave via these same holes when the water table drops? do I just compact clay into the seeping areas?
also I was planning on having some area with seep drop offs in my pond for ledges... How do I compact near vertical walls for my semi excavated pond?
thanks
Bryan