Void and Subsidence Mapping

GPR surveys can reveal subsurface voids and localized areas of subsidence. Real-time GPR returns above voids and subsided sediment have discrete signatures that are used to interpret and identify these features. This technology is useful when examining the substrate for structural integrety, and when searching for cesspools, and former UST locations. In addition, GPR can be used effectively to search for buried evidence (i.e. formal burials, and clandestine graves), and archaeological remains. Although some soil conditions are not suitable for obtaining a comprehensive GPR data set that can be interpreted, recent changes in shallow soil conditions as a result of disturbance can pinpoint areas of interest.