Specifications include, but are not limited to: This project will addresses subsidence complaints from Matt Shingledecker near Powderly, KY in Muhlenberg County and Daniel Smith, on Wesco Road in Hopkins County. The project will use drilling & grouting to stabilize the WKY No. 9 seam that has been deep mined under these structures. Grout will be injected underground into the void space via a borehole in 30cy intervals beginning at the bottom of the coal seam. The holes will be grouted to refusal. Spacing of the holes will be around the perimeter of the structure to be protected on a 40'-50' interval. Pilot holes will be drilled following injection between the holes to insure that the void spaces have been filled.