Our Technology
Resistivity / Induced Polarization & Ground Penetrating Radar
The Mobile EM^3
TREMAINE’s proprietary EM3 technology gives us a capability that is unique in the industry. A mobile geophysical instrument for near-surface (upper 10 meters) electromagnetic investigations. Both apparent conductivity and magnetic susceptibility data are acquired for three volumes/depths simultaneously, resulting in a tremendous increase in data, consequently greater confidence regarding subsurface conditions.
This information helps identify buried cultural resources early and informs key project decisions in design engineering, geotechnical, environmental, and right-of-way/utilities. Finding potential issues in planning and design—rather than during construction—avoids “unforeseen” surprises, reduces errors and omissions, limits scope creep, and prevents schedule slippage and cost overruns. The data can also serve as a fact-based audit of subsurface conditions for constructability reviews. It gives stakeholders and regulators a clear baseline, shortens review cycles, and improves coordination with utilities and right-of-way owners.
These benefits compound because insufficient subsurface information drives more than half of construction claims and change orders. To cut that risk, Tremaine pairs EM3 results with additional geophysical methods to characterize the subsurface as accurately as possible. Follow-on tools are deployed after the EM3 survey to delineate potential cultural resources and obstacles with greater precision, or used when soil conditions limit EM performance. This combined approach expands coverage to a wide range of environments while remaining noninvasive and efficient. The result is better targeting, fewer surprises in the field, and a defensible record for design, permitting, and construction.
Reliable Data
The complementary nature of the resistivity data allows for more accurate models of the subsurface to be generated from the EM3 data, reducing the need for more expensive subsurface testing. Ground penetrating radar is now a commonly used technique in geotechnical, engineering and ROW/utilities investigations for providing high resolution images of the buried strata and objects. The combined use of these different methods provides a powerful “toolbox” for cultural resource, environmental, geotechnical and ROW/utilities investigation
With our proprietary geophysical technologies, we are able to increase the speed and reliability of gathering field survey data, as well as reduce and eliminate work stoppages due to the inevitable “new discovery” of archaeological sites obscured by vegetation, fill, or natural deposition.
Mobile EM^3
Tremaine’s proprietary EM^3 delivers a capability unique in our industry: a fully mobile electromagnetic system for near-surface mapping (upper ~10 meters / ~33 ft). Our patented, noninvasive, minimally destructive technologies let us detect and visualize what’s underground without touching the ground. The mobile workflow scales to projects of any size, duration, depth target, or complexity—reducing site disturbance and accelerating decisions.