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TABLE 1 <br /> HISTORICAL SOIL ANALYTICAL DATA <br /> 990 Beechnut Avenue Property <br /> Tracy, California <br /> Notes: <br /> I Samples collected by Dames&Moore,and analyzed by Curtis&Tompkins,Ltd. Data taken from Dames&Moore(1987, 1989, 1997); <br /> analytical methods and detection limits unknown. <br /> 2 Dames and Moore report indicates that this is a"composite"sample but does not provide information about what depths the sample was , <br /> composited from. Depth shown was that specified in the Dames and Moore report. <br /> 3 Samples collected by Geomatrix Consultants,Inc.(1997),and analyzed by American Environmental Network. BTEX analyzed using <br /> EPA Method 8020;polynuclear aromatic compounds analyzed using EPA Method 8310. <br /> Abbreviations: <br /> TPHog=Total petroleum hydrocarbons quantified as oil and grease ft bgs=Feet below ground surface <br /> TPHg=Total petroleum hydrocarbons quantified as gasoline NA=Not analyzed <br /> TPHd=Total petroleum hydrocarbons quantified as diesel ND=Non-detect <br /> TPHk=Total petroleum hydrocarbons quantified as kerosene <br /> BTEX=Benzene,toluene, ethylbenzene,total xylenes <br /> is\doc_safe\6000s\6628\histodcal_table.xls Page 2 of 2 <br />