Maintaining consistent soil moisture levels during direct examination of a pipeline in a Direct Assessment (DA) program is critical because soil moisture significantly affects the accuracy of electrochemical measurements used to assess corrosion activity and cathodic protection (CP) effectiveness. Direct examination involves excavating the pipeline at selected locations to visually inspect the pipe surface for corrosion and to perform electrochemical measurements, such as instant-off potentials and soil resistivity measurements. Soil moisture directly impacts soil resistivity, which is a measure of how well the soil co....
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