<p><p><strong>Reference(s):</strong></p><p><em>Bjerrum et al. (1967)<br>Casagrande (1983)<br>Dearstyne and Newman (1963)<br>Glendenning et al. (2005)<br>Lo et al. (2001b)<br>Pugh (2002)</em></p><p><strong>Method Summary</strong></p><p>Power monitoring involves periodically monitoring the consumption of power and electrical conductivity of the soil between electrodes during treatment. These measurements can be used for process control (QC). It is common that the electrical conductivity of the soil reduces as moisture content reduces at the anode. This may require providing higher voltages or intermittently shutting of the power or polarity reversal as appropriate to the field conditions.</p><p><strong>Accuracy and Precision</strong></p><p>Dearstyne and Newman (1963) reported that the soil electrical conductivity between electrodes they measured was believed to be accurate within 3% of the indicated value. Power consumption meters can be installed to monitor the power. ANSI C12.20 standard indicates that power meters have a measurement accuracy of ≤ 0.5%.</p><p><strong>Adequacy of Coverage</strong></p><p>Not applicable.</p><p><strong>Implementation Requirements </strong></p><p>Some experience and special equipment is necessary – very common in many electrical applications.</p><p><strong>General Comments</strong></p><p>Monitoring power is strictly a process control (QC) technique.</p></p>