GSI was very professional and easy to work with throughout the whole process. They communicated well and were accommodating to our production needs, while allowing us to work with them to help them accomplish what they needed to get done as well. Dan, Amanda, Zech, Craig, and Justin were all great. It was actually pretty refreshing to be able to work with a group that was so easy deal with, especially for a contractor coming in from out of town. They all seemed to have Midwestern values and work ethic. If you have any questions whatsoever, I would be more than happy to discuss. Based on our experience, I would confidently and quickly recommend GSI to anyone needing similar geo stabilization.
A variation of karst sinkhole grouting is the grouting of mined coal seams and workings located below existing infrastructure that exhibit the potential to propagate to the surface and cause sinkholes and/or subsidence.