The purpose of this study to collect information on the quantity of heavy metals in groundwater near the phayao fault group. As a basis for monitoring earthquake in the future due to the increased quantity of heavy metals may be an indicator of future earthquakes. By applying electric potential measurement techniques for the night in the Quantitation of copper, lead, cadmium and zinc in sample groundwater surrounding the group fault phayao. 8 examples. The limit of detection (LOD) measure copper, lead, zinc, cadmium, and equal to 0.250, 1.802, 1.274 maikhrokram 7.664 per liter, respectively, and. An precision analysis of the concentration maikhrokram per 100 litres, the relative standard deviation less than 6.0% (n = 15) in the validation of the analytical method is 82.0% to 100.1 — a technique to analyze lead, cadmium and copper consumption of zinc in groundwater. How to add standard found that lead, zinc, copper, cadmium and a quantity in the range of concentrations – 0.389 15.301, 1.028-6.408 6.293, 0.880-2.919 and maikhrokram per liter respectively – 46.448. In each, for example, take the time to analyze all the 10 minutes that it does not exceed the standard set by the Environmental Committee of the published national issue 20 (2553) by standard values of lead, cadmium, copper and zinc, may not exceed 0.003 0.01, and 1, 5 mg per liter, respectively.
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