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Field Application of Handheld EM Systems for Soil Conductivity Mapping

Explore SAGE Vertical Distribution of EM Response for Soil Properties Assessment including water content, texture, organic matter, and more. Detailed survey summary conducted with EM31, highlighting conductivity data collection and cost-effective analysis. Discover factors influencing soil conductivity and their impact on remediation costs.

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Field Application of Handheld EM Systems for Soil Conductivity Mapping

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  1. Selected Applications of Handheld, Near-Surface EM Systems SAGE

  2. Vertical Distribution of EM Response

  3. Factors that affect Soil Conductivity soil properties include: • Water Content • Soil Texture • Soil Organic Matter • Depth to Claypans • Cation Exchange Capacity (CEC) • Salinity • Exchangeable Ca and Mg • Water Holding Capacity of Soil

  4. Survey Summary • Data collected with EM31 • 2 m line spacing, 1.5 m station int. • Total 1500 stations • In-phase & Quad • Survey time 5 hours • Total cost $1,500 Conductivity in mS/m

  5. Conclusion Ultimately, the overburden and 5 feet of rock was excavated and sent for processing. The revised cleanup cost was over 8 million dollars

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