Rebar located with ground radar (GPR) by GeoModel, Inc. GeoModel, Inc. Logo




Ground Penetrating Radar GPR Survey Services Conducted Nationwide



or Call Us at: 703-777-9788


All GPR surveys are conducted or supervised by:

red dotCertified Professional Geologists with 20 Years of Experience
red dot40-Hour OSHA Hazwoper-Trained Professionals
red dotISNetworld Member Company

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Ground Penetrating Radar Applications

ground penetrating radar, ground radar, gpr, or underground scanning of buried tanks surveyed by GeoModel, Inc.

Click on text links below:

red dotutility location
red dotcemetery and grave location
red dotsinkhole and void detection
red dottank (UST) and drum location
red dotconcrete and rebar inspection
red dotgeology and geologic hazards
red dotlandfills and burial trenches
red dotarchaeological studies

CNN and FOX News came to the office of GeoModel, Inc. to find out about Ground Penetrating Radar (GPR).


GeoModel, Inc. interview with Wolf Blitzer of CNN News Program

CNN interviews GeoModel, Inc. about Ground Penetrating Radar GPR.
To view the CNN video interview, Click on the image to the right:




GeoModel, Inc. interview with Greta Van Susteren of FOX News

Fox News interviews GeoModel, Inc. about Ground Penetrating Radar GPR.
To view the FOX video interview, Click on the image to the right:



Ground Penetrating Radar

GeoModel, Inc. is registered with the FCC and uses only FCC-approved GSSI GPR equipment

Ground penetrating radar GPR produces an underground, cross-sectional, two-dimensional image scan of the soils and subsurface features. Three-dimensional GPR images, such as the one below, can be produced using raw field data and post-processing software.

GeoModel ground penetrating radar system3-D image of underground pipes from ground penetrating radar (GPR) data obtained by GeoModel, Inc. with a 4-way scan


GeoModel, Inc. conducts ground penetrating radar GPR surveys using antennas with various frequencies. Depths of GPR underground scans can be as deep as 30 feet in sandy or silty soils, using a low frequency ground penetrating radar antenna.

A higher frequency antenna can examine the near surface, to a depth of 12 feet, in greater detail. The ground penetrating radar signal does not go as deep in clayey soils.

For more information about What is ground penetrating radar and how does it work?,Click Here

Shallow Ground Penetrating Radar Surveys

Shallow ground penetrating radar GPR surveys are conducted by one person, hand-towing or ATV-towing the antenna.

Hand-towed GPRground penetrating radar of buried pipes


Applications for a shallow ground penetrating radar survey include locating pipelines and utilities, locating underground storage tanks (USTs) and drums, inspecting concrete, detecting rebar, locating unmarked gravesites, and conducting archaeological studies.


aerial photograph of ground radar and EM utility location survey areaAs-built utility map based on ground penetrating radar (GPR) data and metal detection (EM) data obtained by GeoModel, Inc.aerial photograph of same GPR and EM GeoModel, Inc. survey area

Before GeoModel, Inc. survey (left), GeoModel, Inc. As-built utility map (center), and area after construction (right)

Deep Ground Penetrating Radar Surveys

Deep ground penetrating radar GPR surveys are conducted with a low frequency GPR antenna, such as a 200-MHz antenna that can reach depths of up to 30 feet in sandy soils.

Applications for deep ground penetrating radar include landfill and burial trench delineation, geology and bedrock depth studies, and karst and sinkhole location.

Vehicle-towed GPRTrenches located by GeoModel, Inc. using ground penetrating radar

Top of Bedrock Profile located using ground radar by GeoModel, Inc.Sinkhole and void located with gpr by GeoModel, Inc.

Concrete Inspection Surveys

GeoModel, Inc. can conduct ground penetrating radar (GPR) underground scanning of concrete to locate rebar, pipes, post tension bars, and conduits in concrete structures. Our scanning can also detect voids within concrete slabs and under concrete slabs.

Our ground penetrating radar scanning can inspect concrete walls, concrete floors, slabs, airport runways, tunnels, abutments, dams, and garages. Asphalt roads and surfaces can also be scanned.

concrete inspection survey using ground penetrating radarrebar in concrete and pipe in concrete located with ground radar

Cemetery and Grave Site Surveys

GeoModel, Inc. conducts ground penetrating radar surveys for locating unmarked grave sites and confirming marked grave sites at cemeteries.

Gravesites located with ground penetrating radar by GeoModel, Inc.ground penetrating radar survey to locate gravesites, conducted by GeoModel, Inc.

GeoModel Heat Map Surveys

GeoModel, Inc. can create a color-contoured GeoModel Heat Map of your property that represents the features present below ground. The GeoModel Heat Map is produced using an electromagnetic conductivity EM survey and metal detection instruments, followed by computer processing to create a full color contour map. The GeoModel Heat Map shows areas of low EM values or "heat" (light blue to green colors) and areas of increased EM values or "heat" (yellow to red colors).

Increased EM values may represent areas of buried metal utilities, pipes, drums, or tanks (USTs), burial trenches or landfills containing metal, inorganic contamination, or increased groundwater flow. Lower EM values may represent natural, background conditions or dry soil areas. Very low EM values (deep blue) usually represent buried metal features or objects.

home and property with groundwater seepage problems, buried tank, septic system, old buried foundation, and buried utility lines


The color-contoured image (Google GeoModel Heat Map) above was obtained using an electromagnetic conductivity, EM survey, with GPS positioning. The various colors represent different underground features.

Metal detection contour map produced by metal detector survey data and visualization software by GeoModel, Inc. Locations of Metal Pipelines Located based on results of an EM metal detection survey conducted by GeoModel, Inc.

Color GeoModel Heat Map (above left) and Site Map (above right) showing locations of metal and conductive pipelines


For a GeoModel Heat Map, mapping is done automatically using a vehicle or ATV driven EM survey system. EM data results can be obtained in a short time period, making our system cost-effective for large industrial sites, as well as for smaller sites. Metal utility lines, and most other conductive utility lines, are mapped using our unique EM survey technique.

truck pulled electronic instrumentation with GPS positioningDeep EM response to buried metal pipeline

GeoModel Truck Mounted Pipeline Detection System (Left) and EM signal response to buried metal pipeline (Right)


Other GeoModel-owned EM instruments used for making a color GeoModel Map are shown below:

EM instrumentEM Field SurveyEM hand-held Field Survey

Various EM instruments and metal detectors owned and operated by GeoModel, Inc.


GeoModel Heat Maps for other subsurface investigations are shown below:

EM Contour Map - GeoModel, Inc.Sinkhole Located by GeoModel, Inc. by Identifying Area of High Conductivity (Increased Water Content) Using EM Measurements instead for ground penetrating radar

GeoModel Maps for landfill and trenches (left) and sinkhole located by higher conductivity groundwater in sinkhole (right)


For a ground penetrating radar survey,
or GeoModel Heat Map EM survey

click on your state below:

Map of the Untied States of America for ground penetrating radar projects

Alaska Hawaii Hawaii Washington Oregon California Nevada Idaho Arizona Utah New Mexico Colorado Wyoming Montana Texas Oklahoma Kansas Nebraska South Dakota North Dakota Louisiana Arkansas Missouri Iowa Minnesota Mississippi Illinois Wisconsin Michigan Alabama Tennessee Kentucky Indiana Ohio West Virginia Florida Georgia South Carolina North Carolina Virginia Maryland Maryland Delaware New Jersey New Jersey Pennsylvania New York Connecticut Connecticut Rhode Island Massachusetts Massachusetts Vermont Vermont New Hampshire New Hampshire Maine Washington, DC

or Call Us Today: 703-777-9788


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