After some engineering deliberation the dirt docs came up with a plan to excavate 3/4 of the building pad 4' below BOF and fill back with structural fill. So we got paid to haul in structural fill, place and compact and now we are being pad to cut it all out, haul it back to the pit and bring in new fill.
Called the guy that owns the pit and is also a friend of mine and asked - "You wanna get paid to take the dirt back you sold to us last week?".
We mob'd the 321 back in since there is a nasty tree that put the first scratch on the 325 when it left.
Had to go down another 3' in the loading dock area for a total of 11' BBF due to topsoil, roots and loose soil under the footing.
When they built the building they just pushed everything left over into this area as it was just landscape and not structural. The black seam is a thin bed of coal.
The dirt we hauled out was a nice sandy topsoil. My friend who has the dirt pit took it all and plans on re-selling to homeowners as the material is excellent "yard" dirt. I hauled 3 loads in our dump trailer to my house to fill in a low area.