Two column footings of the radiology building had settled, causing displaced and sagging floor sections in the hospital patient area above. TFI used 2.875" diameter flush joint pipe to compaction grout the soils beneath the footings. Immediately following the compaction grouting, the steel injection pipe was pushed back down into the low slump grout column and left in place as a minipile. Mechanical connection was made between the top of the footing and minipile, thereby stabilizing the settlement. Hydraulic jacks were then placed on top of the stabilized footing and the floor beam very slowly raised back to a level position.