... Testing Utility locators, construction professionals, environmental firms and land surveyors need to know about underground assets prior to digging and trenching efforts. Learn more about how our ground penetrating radar (GPR) utility systems help locate and map metallic and non-metallic underground utilities and subsurface characteristics. We use GPR to locate both metallic and non-metallic utilities, pipes, cables. Our work can be either on a scan and mark basis, a 2D profile of an area or a full 3D underground map. # concrete testing...