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Among the various geophysical approaches to identify the leakage of leachate with conductivity variation,conventional electrical resistivity survey has been mainly used at waste landfill. We adopted small-loop electromagnetic(EM) survey using multi-frequencies in parallel with electrical resistivity survey to delineate the leakage of leachatethrough the shallow soil layer at a waste landfill in Jeju Island, and also with self-potential monitoring to detect thestreaming potential produced by the movement of leachate. There were no evidences of leakage from waste landfillaccording to the results of the electrical resistivity survey and SP monitoring, and it was also true from the results ofwater quality analysis at stream around waste landfill periodically. On the other hand, the results of one-dimensionalinversion of spatially-filtered small-loop EM survey data showed the anomalous zone of low resistivity with depth botharound and inner waste landfil.waste landfil, leachate, Jeju Island, electrical resistivity survey, self-potential monitoring, small-loopelectromagnetic survey. .