Organo-chlorinated pesticides have been seldom measured in Korea because their use was banned for more than two decades. Nevertheless, the environmental persistency of these pesticides requires regular monitoring. Only organo-phosphorus pesticides are currently being monitored in Korea. Simultaneous determination of organo-chlorinated and organo-phosphorus pesticides was attempted using gas chromatography/mass spectrometer detector. Pressurized fluid extraction(PFE) was used in sample preparation. PFE showed equivalent extraction efficiency to traditional soxhlet extraction with less solvent use and less sample preparation time. Average recovery of spiked pesticides to soil and lawn samples was 62% ranging 52 to 154%. Method detection levels(MDLs) for these pesticides ranged from 3.4 to 10.5 ${mu}g/kg$. Endosulfan, fenitrothion, and diazinon were found in the samples from 5 different golf courses out of 9 courses.