I'm in nc an inspector called me and told me to dial in a footing where I'm going to build a wall. I might drill about 8 two foot long rods into the existing 18' long footing then lay two #5 continuous rods tied to the rebars. Put some visqueen down. Here in oxford nc carolina they want the footing to be 16" wide and 12" deep from finished surface. What the heck is dialing in I think its native talk. Thanks alex