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2 To extract the analytes of interest from the soil matrix, 50-9 sub--samples of soil were combined with 50 mL of dichloromethane solvent and enough water was added to wet the soil. The analytes were extracted into the solvent by shaking for one hour. The solvent was separated from the soil and water by centrifugation. Aromatic volatile organic concentrations were determined by comparison to an external standard which contained all components listed in EPA Method 8020. Aliquots of the dichloromethane extracts were analyzed on a Hewlett-Packard 5880 capillary gas chromatograph equipped with a 30 m x 0.25 mm, 0.25 um film thickness, J & W DB 1301 capillary column and a Hewlett-Packard Model 5970 mass selective detector operating in the selective ion monitoring mode. This type of detector was used instead of the photoionzation detector suggested in EPA Method 8020 because other petroleum products present in the samples might have interfered with correct identification of the analytes specified in Method 8020, particularly the dichlorobenzene components. Determination of diesel fuel levels in the samples followed EPA Method 8015. Aliquots of the dichloromethane extracts prepared as described above were analyzed on a Hewlett-Packard 5880 capillary gas chromatogra}h equipped with a 30 m x 0.25 mm, 0.25 um film thickness, J & W DB 17 capillary column and a flame ionization detector. The carbon number range of diesel in the samples was from C11 to C22. Reference diesel fuel No. 2 was obtained locally and used as an external standard to calibrate the gas chromatograph. The summation of the peak area responses from C14, C16 and C18 was used for calibration and calculation of the diesel concentration in the sample. Soil from the 150 level from R-1, R-2 and R-3 and from the 30' level from R-1 were: analyzed for the halogenated volatiles described in EPA Method 8010. In addition to the dichloromethane extract, a separate: sub-sample of each four soil samples was extracted in toluene by the procedure described above to allow determination. of all analytes listed in EPA Method 8010. The extracts were analyzed by high resolution gas chromatography/mass spectrometry'. Results and Discussion Results for all samples for aromatic volatile organics and diesel are presented in Table 1. Diesel, at levels ranging from 14000 to 61000 ug/g and xylenes at levels ranging from 0.4 to 22 ug/g were found in all samples from R-1. Benzene, toluene and ethyl benzene were detected in some samples from R-1 at levels ranging from 0.7 to 4.4 ug/g. No aromatic volatile organics were detected i:z any samples from R-2 or R-3; diesel was detected in only one sample from R-3 at a level of 30 ug/g. No halogenated — -..-- ----- --__ -_volatile.--compounds_-were-_detected--in--t:he--samples_analy.z.ed._.-._ __--