Subsurface Detection that Prevents Time Loss and Saves Lives

QRI’s Geophysical Division was founded in 2004. Our crews can mobilize within 24 hours and as little as 8 hours – this prompt mobilization prevents costly construction delays. Pre-excavation identification of utilities prevents losses and saves lives. QRI has successfully mapped utilities, rebar & post tension cables, intraslab & sub slab voids, USTs, buried drum debris fields, and contaminants using a combination of technologies supporting GPS. QRI goes beyond One Call locates on public easements and performs private utility locating.

QRI has developed a non-intrusive geological mapping technology called Pulser™. Pulser™ defines underlying geology to a depth of 350 feet without extensive drilling. Using subsurface data visualization software, Pulser™ data is transformed into 2D and 3D representations of stratigraphy and lithology.

Top clients in this Section include Gulf Power Company, CH2M Hill, Wink Engineering, Stratum Engineering, Beta Testing, Mexichem Fluor, PPM Consultants, Palmisano Contractors, Denka Performance Elastomers and GeoEngineers. Top industrial facilities include Dupont Pontchartrain Chemical, Phillips 66, Sasol and BP Lubricants.


  • Concrete Surveys
  • Cultural Site Surveys
  • Electromagnetic (EM) 31 / EM 38 Surveys
  • Infrared (IR) Thermal Imaging
  • Ground Penetrating Radar (GPR) Surveys
  • Resistivity Surveys
  • Pulser™ Subsurface Stratigraphic Mapping
  • Underground Storage Tank (UST) Surveys
  • Utility Locating
  • Vacuum Excavation