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. Client Number T0001CHVOS <br /> Project ID Chevron,Stockton <br /> Work Order Number C3-03-0298 <br /> ANALYTICAL RESULTS <br /> Volatile Organics in Soil <br /> EPA Methods 8020 and Modified 8015a <br /> GTEL Sample Number 17 18 19 20 <br /> Client Identification SP-3A-3D SPAA-413 SP-5A-5D WS-1A-113 <br /> Date Sampled 03/16/93 03/16/93 03/16/93 03/16/93 <br /> Date Extracted NA NA NA NA <br /> Date Analyzed 03/24/93 03/23/93 03/23/93 03/23/93 <br /> Detection <br /> Analyte Limit, mg/kg Concentration, mg/kg <br /> Benzene 0 005 <0 005 <0005 <0 005 <0 005 <br /> Toluene 0 005 <0 005 <0 005 <0 005 <0 005 <br /> Ethylbenzene 0 005 <0 005 <0 005 <0 005 <0 005 <br /> Xylene, total 0 015 <0 015 <0 015 <0 015 <0 015 <br /> BTEX,total — -- -- -- -- <br />. Gasoline 1 <1 <1 <1 <1 <br /> Detection Limit Multiplier 1 1 1 1 <br /> Percent solids 890 889 93 8 845 <br /> BFB surrogate, %recovery 107 987 990 901 <br /> a Test Methods for Evaluating Solid Waste,SW4846,Third Edition,Revision 0,US EPA November 1986 Modification for TPH as <br /> gasoline as per California State Water Resources Board LUFT Manual procedures Bromofluorobenzene surrogate recovery <br /> acceptability limits of 31-127%are derived from the 99%confidence interval of all samples during the previous quarter <br /> Expected surroggate value is 0 100 mg/kg <br /> NA = Not Applicable <br /> GTEL Concord,CA NGTEL03030298 BXG <br /> LABORATORiE3 INC <br />