Electrical Conductivity (EC) Brochure

BackgroundDakota Technologies is pleased to announce the availability of our Electrical Conductivity (EC) instrument, a complimentary module for UVOST®, TarGOST®, and Soil Color (SCOST™). Different soil types will conduct electricity differently depending on particle size and mineralogy. For example, clays generally will have high conductivity while gravels will have low conductivity. By logging EC with Dakota’s optical screening tools, you can develop a site wide model of source pollution and unconsolidated stratigraphy, two key components to predicting mobility.The EC system operates at the same time OST data is being gathered. To collect EC data at the same time as OST data you need an EC module, a downhole dipole threaded below an EC capable SPOC, and a special fiber cable with EC wires.ECElectrical ConductivityDakota Technologies, Inc. Telephone: (701) 237-4908www.dakotatechnologies.comRandy St. Germain, Presidentstgermain@dakotatechnologies.comTravis Martin, Product Managertmartin@dakotatechnologies.comEC FeaturesReports EC in milli-Siemens per • meter (mS/m) unitsLog and plot EC with other Dakota • data from the same software packageFits inside Dakota’s OST case, or • available as a stand-alone unitCompatible with moderate percussion • deliveryDownhole wiring inside UVOST fiber • cable, no need to string two bundlesRetrofit of Dakota’s standard fiber • cable is availableExample DataIn this example data, conductivity (highlighted with the yellow box) is plotted with TarGOST® data. Note the transitions at roughly 3 feet (fill-to-soil) and 22 feet (high-concentration of product).