Ground Penetrating Radar in Hawaii
Email us at email@example.com or phone 703-777-9788
Ground penetrating radar locates almost anything underground
Ground penetrating radar makes an underground "picture"
GeoModel, Inc. conducts ground penetrating radar surveys anywhere in Hawaii
Certified Professional Geologists with 20 Years of Experience
Certified 40-Hour OSHA, TWIC, ISNetworld Professionals
Ground Penetrating Radar Applications
utility and pipe location
tank (UST) and drum location
cemetery surveys and grave location
concrete and rebar inspection
sinkholes and karst
geology (bedrock) and geologic hazards
landfills and burial trenches
Ground Penetrating Radar
GeoModel, Inc. is registered with the FCC and uses only FCC-approved GPR equipment
Ground penetrating radar (GPR) produces an underground cross-sectional, two-dimensional image 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, Inc. conducts ground penetrating radar surveys using antennas with various frequencies. Depths of ground penetrating radar (GPR) can be as deep as 30 to 40 feet (10 to 15 meters) in sandy or silty soils, using a low frequency ground penetrating radar antenna. A higher frequency antenna can examine the near surface, from 0 to 10 feet (0 to 3 meters), in greater detail. The ground penetrating radar signal does not go as deep in clayey soils. GeoModel, Inc. has soil maps of Hawaii that indicate the suitability of GPR.
Shallow Ground Penetrating Radar Surveys
Shallow ground penetrating radar surveys are conducted by one person, hand-towing or ATV-towing the antenna.
locate pipes and utilities
tank (UST) and drum location
concrete and rebar imaging
unmarked cemetery and grave location
other shallow buried objects
Aerial photograph of survey area (on left, above), GeoModel, Inc. As-built utility map based on ground penetrating radar (GPR) and metal detection (EM) data (center, above), and an aerial photograph of the same GeoModel, Inc. GPR and EM survey area after construction has begun (on right, above).
GeoModel, Inc. can also conduct ground penetrating radar (GPR) scanning of concrete slabs, walls, and abutments and of asphalt roads and surfaces to locate rebar, pipes, and conduits. Our ground radar scanning can also detect voids within concrete slabs and under concrete slabs and asphalt surfaces.
GeoModel, Inc. conducts ground penetrating radar surveys for locating unmarked grave sites and confirming marked grave sites at cemeteries.
GeoModel, Inc. can conduct a low-cost GPR survey that includes detecting graves and marking their locations on the ground in the cemetery as shown below.
At additional cost to the field marking only survey above, GeoModel, Inc. can provide a cemetery site map with the grave sites plotted on it (below left). GeoModel, Inc. can also prepare a 3-D visualization of the cemetery survey as shown below (right), but the cost is higher due to more detailed field GPR data collection and processing.
Deep Ground Penetrating Radar Surveys
Deep ground penetrating radar surveys are conducted with a low frequency GPR antenna, by hand-towing, ATV-towing, or truck-towing the antenna.
landfill and burial trench delineation
geology (bedrock and soils) studies
karst and sinkhole (geologic hazards) investigation
Supplement to Ground Penetrating Radar Survey
At some project sites, the soil has too much clay for an optimal ground penetrating radar survey. As a supplement to a GPR survey, GeoModel, Inc. can create a GeoModel Map (Site Scan Map) of your property. GeoModel, Inc. uses EM and metal detection instruments and computer processing to create a full color contour map of high and low ground conductivity measurements. Relative changes in ground conductivity can show areas of buried metal utilities, pipes, drums, tanks (USTs), burial trenches containing metal, or areas of increased or decreased conductivity.
Mapping is done automatically using a vehicle or ATV driven system. 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, can be mapped using our unique technique.
GeoModel Map, Truck-Mounted Deep Pipeline Detection System (On Left) and Deep EM signal response to buried metal pipeline (On Right)
The contoured GeoModel Map (below left) was made by GeoModel, Inc. using an EM instrument to collect field data, processing software to grid the field data, and 2D visualization software to produce the GeoModel Map color image. The site map (below right) shows the locations of metal and conductive pipelines detected by the EM instrument in the same area as on the left.
GeoModel, Inc. can locate other metal and conductive objects and features using the EM and metal detection methods. The image below (left) shows the results of a GeoModel, Inc. EM survey, for landfill and burial trench delineation. The EM contour map below (right) shows the location of a sinkhole identified by the higher conductivity values due to increased groundwater in the sinkhole. The EM data was collected by GeoModel, Inc. along with GPS measurements and the EM data was contoured by GeoModel, Inc. using EM data processing and visualization software.
GeoModel, Inc. also uses EM and metal detection surveys to locate inorganic contaminant plumes. GeoModel, Inc. conducts EM and metal detection surveys using the GeoModel, Inc.-owned equipment shown below:
Various EM instruments and metal detectors owned and operated by GeoModel, Inc.
For a ground penetrating radar survey in Hawaii,
click on the e-mail link below:
or give us a call at (703) 777-9788
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