We travel throughout the United States providing hands-on civil/Structural and Geophysical services. Many US-based companies, along with state and federal agencies appreciate this approach. As a geophysical consulting firm, we offer services to address many issues.

Our Services include...

 
 
 
 

Subsurface Void Investigations

Subsurface condition assessment service is provided to Oil and Gas Industry and Chemical Plants to provide them quality and safety assurance in a highest level. Working close together with area owners, plant engineers or Craning & Rigging department void survey is always recommended prior to heavy machinery placement or before any rigging, hoisting is taken place inside a facility.

 
 

Environmental Remediation

Pollution is a major concern, globally. Unlike air and noise pollution, searching for hazardous waste and the collateral damage from the improper disposal of hazardous waste are targets for geophysical surveys. Buried hazardous materials can affect the subsurface in many ways. Unless one is mapping preferential paths that correlate with bedrock elevations, electrical methods are the preferred geophysical service for environmental remediation investigations. Compared with electromagnetic surveys that have only a few techniques for acquiring data, electrical methods offer a wider selection of geophysical instruments and applications.

Electrical methods for environmental studies generally include electromagnetic conductivity instruments, electrical resistivity equipment, and ground penetrating radar systems. These three groups offer numerous choices that target various depths of investigation and respond to a large number of subsurface conditions, including changes in a near surface.

 
 

Pavement Thickness Assessment Roadway and Highway

Millions of dollars are sent on building, rebuilding or repairing Highways nationwide. This GPR procedure can be added to traditional roadway assessments but this one is providing valuable data and dataset to be obtained non-destructively. Thin layer information as well as road base imaging is produced as a final report in a comprehensive GIS form.

 
 
 
 

Forensic Science

Forensic geophysics is for law enforcement and other legal matters. It is a non-destructive approach for locating evidence found beneath the surface of the ground or water. GPR is capable to provide valuable information that would become evidence and may enhance a criminal investigation. When the investigation is about searching for sign of graves, we recommend using GPR (e.g., GSSI made geophysical survey system), capacitance coupled electrical resistivity, magnetometers, terrain conductivity meters (e.g. Geonics EM38 and EM31), and multi-electrode electrical resistivity imaging as a joint survey.

 
 
 

Real Estate Assessments

Undoubtedly, real estate assessments involve the potential for environmental issues (see environmental remediation above). On the other hand, real estate assessments can also pertain to documenting underground storage tanks ( UST ), finding septic systems, mapping tile lines, and locating private facilities. Locating private facilities can encompass buried pipes, cables, water lines, wires, and other artifacts. Due to liability issues, locating public utilities is best left to the organizations authorized to do so.

 
 

Archaeologists

Archaeology is one of the more challenging areas in geophysics. By all means, the problem relates to the fact that many of the areas of concern do not yield strong or obvious responses. One is often attempting to map very subtle changes. Subtle changes at depth can affect the electrical properties of the soil (e.g. apparent conductivity, apparent resistivity, and magnetic susceptibility).

Applicable ASTM procedures

  • Electromagnetic Method (EM) for detection of buried ferrous and non-ferrous metals.

    o ASTM D6820 - 20 - Standard Guide for Use of the Time Domain Electromagnetic Method for Subsurface Investigation

    o ASTM D6639 - 18 - Standard Guide for Using the Frequency Domain Electromagnetic Method for Subsurface Investigations

  • Cesium Magnetometer and handheld Metal Detector for detection of subsurface metals

    ASTM D7046 - 11 - Standard Guide for Use of the Metal Detection Method for Subsurface Exploration

  • Ground Penetrating Radar (GPR) mid and high frequency scans for near surface voids, pavement thickness, and detection of buried railroad features

    ASTM D6432 - 19 Standard Guide for Using the Surface Ground Penetrating Radar Method for Subsurface Investigation