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You are here: Home / Consulting Services / Geophysical Services / Geophysical Techniques / Electromagnetic Conductivity Mapping
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Electromagnetic Conductivity Mapping

Are you baffled by how one small chemical source area impacted your entire site? Are you looking to locate the extents of impacted soils across your site? Could your site contain areas of buried metallic and non‑metallic waste? A terrain conductivity survey using EM conductivity meters may an option.

We utilize a variety of EM conductivity meters (Geonics EM31, EM34, EM38 and a Geophex GEM-2) to map out shallow variations in geology, locate preferential pathways involved in chemical source migration, and delineate zones of buried fill. These conductivity meters have penetration depths ranging from 5 to 100 feet below ground surface and can be hand carried across smaller, gridded survey areas, or towed on a non-metallic cart behind a utility vehicle for larger sites using a differentially corrected GPS (sub-meter accuracy) to control the data positioning.

From a small parking lot, to entire landfills, we can delineate the subsurface anomalies of your site.

Electromagnetic Conductivity Applications

  • Mapping Variations in Soil Type
  • Preferential Pathway Locating
  • Shallow Karst Mapping
  • Buried Waste Delineation
  • Chemical Source and Extent mapping
EM31 Mapping
EM Conductivity Meter in Action
GEM-2 Electrical Resistivity Map

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        • Electromagnetic Metal Detection
        • Ground Penetrating Radar (GPR)
        • Electromagnetic Conductivity Mapping
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News

Karst, Cake, and Indiana Geology

April 22, 2022in Science and Environment

Mundell & Associates Featured on International News Program

November 30, 2021in Company News

Ask a Professional – What sparked your interest in the Earth Sciences?

October 14, 2021in Company News

Earth Science Week 2021 – Water Today and for the Future

October 10, 2021in Community Involvement, Science and Environment

Our Affiliations

- Midwestern States Environmental Consultants Association
- Environmental & Engineering Geophysical Society
- Professional Geologists of Indiana, Inc.
- National Ground Water Association
- American Societies of Chemical / Civil Engineers Engineers without Borders
- Association of Environmental and Engineering Geologists
- Indiana Association for Environmental Professionals
- Geological Society of American
- Indiana Circular Economy Initiative
- Economy of Communion
- Indiana Recycling Coalition

.....and more more affiliations

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Why?

  1. Topping off the gas tank can result in your paying for gasoline that is fed back into the station’s tanks because your gas tank is full.
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  3. You need extra room in your gas tank to allow the gasoline to expand.
  4. Topping off your gas tank may foul the station’s vapor recovery system.

Source: EPA

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