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GEOMATRIX <br /> TABLE 1 <br /> HISTORICAL SOIL ANALYTICAL RESULTS - <br /> 1995 INVESTIGATION 1.2 <br /> Roberts Property <br /> Vernalis, California <br /> Sample <br /> Depth Ethvl- <br /> Sample ID (feet bgs) TPHd TRPH Benzene Toluene benzene Xvlenes <br /> Soil' <br /> SB-1 16.5 - 17.0 <54 NA <3 <3 <3 <3 <br /> SB-1 31.5 -32.0 <5 NA <3 <3 <3 <3 <br /> S13-2 11.5 - 12.0 17,200 NA <3 <3 <3 <3 <br /> S13-2 21.5 -22.0 11,800 NA <3 <3 <3 <3 <br /> S13-2 31.5 -32.0 16,700 17,600 <3 <3 <3 <3 <br /> Separate-Phase Petroleum Hydrocarbons5 <br /> S13-2 33 167,000 44,000 <3 37 <3 42 <br /> Notes: <br /> I Samples collected by Geological Technics, Inc.,on I January 1995. <br /> Concentrations for TPHd and TRPH shown in milligrams per kilogram(mg/kg); for benzene,toluene, <br /> ethylbenzene,and xylenes, in micrograms per kilogram(µg/kg). <br /> 3 Samples analyzed for TPH as diesel using EPA Method 8015M,for TRPH using EPA Method 418.1, <br /> and for benzene,toluene,ethylbenzene,and xylenes using EPA Method 8020. <br /> ° Analyte was not detected above detection limit indicated. <br /> 5 A sample of separate-phase petroleum hydrocarbons was collected as a "wipe"sample and analyzed <br /> for TPH as diesel,kerosene,dielectric,and motor oils using EPA Method 8015M. <br /> Abbreviations: <br /> TPH=Total petroleum hydrocarbons. <br /> TRPH=Total recoverable petroleum hydrocarbons. <br /> NA=Not analyzed. <br /> i:\doc safe\5000s\5011.001\tbl l.xls <br />