#ElectricalResistanceHeating (ERH) is an intensive #inSitu #environmentalRemediation method that uses the flow of #alternatingCurrent electricity to heat soil and groundwater and evaporate contaminants. Electric current is passed through a targeted soil volume between subsurface electrode elements. The resistance to electrical flow that exists in the soil causes the formation of heat; resulting in an increase in temperature until the boiling point of water at depth is reached.