Does the quality of fill dirt matter?
For example, in my application, I need to fill an area where I'm planning to have a gravel patio. I picked up a yard of dirt from a local supply place and, upon coming come, I discovered that contained a few broken cinder blocks and is full of sod, and generally looks to me more like soil that dirt. I expect dirt to look more like clay than soil.
In any case, will this potentially cause problems if I use it to try to raise the level for the patio?