Ground Penetrating Radar (GPR) systems - GSSI


Environmental assessment using GPR and EM

Ground Penetrating Radar for Environmental Assessment

  • Overview
  • Site Assessment
  • Landfill Delineation
  • USTs and Drums
  • Water Table Mapping

Environmental Assessment and GSSI Technology Work Hand-in-Hand

The key to a comprehensive environmental assessment is the subsurface investigation. GPR and EM play an integral part by providing a non-intrusive means of examining the subsurface for environmental hazards such as soil contamination, underground storage tanks and drums. GPR can delineate landfills and pathways for contaminant flow, as well as conduct hydrogeologic investigations such as water table mapping. GSSI offers innovative technology to support site assessment needs.


Conduct Site Investigations with GSSI GPR and EM Instruments

Environmental scientists and land developers use GPR and EM to assist in their redevelopment efforts. These proven geophysical methods allow professionals to conduct a non-invasive investigation of the surface at a relatively low cost.

GPR 3D data set shows a waste pit at a brown field site collected during a Phase II site assessment.

Profiler data showing an EM anomaly created by a pocket of subsurface debris and associated contaminate plume. Data collected with a Profiler EMP-400 system at a frequency of 2 KHz.

GPR survey for envirnonmental site assessment

EM site assessment survey

Locate Contaminated Areas with GSSI GPR and EM Instruments

Environmental scientists use GPR, EM and other geophysical methods to delineate the extent of former landfills and location of contaminated soils.

Soil conductivity map of a former landfill site indicating lateral extent of areas of high conductivity caused by landfill refuse. Data collected with a Profiler EMP-400 system.

EM survey of landfill delineation

Locate Underground Storage Tanks with GPR

Civil engineers, environmental consultants and environmental remediation specialists use GPR and EM to locate the position and impact of underground storage tanks.

2D GPR data collected with a SIR 2000 and a
400 MHz antenna showing multiple USTs at a
former gas station.

Profiler EMP-400 data collected with differential GPS system at a former industrial site with different types of subsurface targets, including contaminates in the soil caused by abandoned USTs.

GPR survey to locate USTs

EM survey to locate USTs

Use GPR for Water Table Mapping

Hydrogeologists use GPR to determine the depth to water table and to identify potential pathways for subsurface flow.

Profile collected with a SIR 2 and 100 MHz antenna indicating a well-defined water table interface and stratigraphic cross-bedding.

GPR survey to map water table

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