Corrosion control (Repealed)

Adequate cathodic protection shall be provided for underground ferrous materials considering the adequacy of the coating, the condition of the soil, proximity of other metallic structures and other relevant factors. The pipe line will be considered to have adequate cathodic protection of the electrical potential is reduced by the protective current to a level eighty-five hundredths of a volt below the potential of the soil, or a change of 0.25 volts in a negative direction, measured with respect to a standard copper sulphate half-cell.