Originally Posted by Jefferson
We have the same issue and are about to tackle it this weekend. Did you ever get an answer to your questions?
Not on line but I did wind up talking to a local sand/gravel wholesaler and they suggested a high clay content sand for regrading. We used it filling the holes and sloping it about 1' over 6'. We had no leaks during the melting and rain this spring.
We plan on installing railroad ties around a 25'x10' area and filling it with pea stone this summer but it looks like you could put topsoil right on top of the clay sand if you wanted grass or plants.