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Cljent Number TOU01 CHVOS <br /> Project ID Chevron,Stockton <br /> Work Order Number C3-03-0330 <br /> ANALYTICAL RESULTS <br /> Volatile Organics in Sod <br /> EPA Methods 8020 and Modified 8015a <br /> GTEL Sample Number 031893GCF <br /> Client Identification METHOD <br /> BLANK <br /> Date Sampled -- <br /> Date Extracted NA <br /> Date Analyzed 03/19/93 <br /> Detection <br /> Analyte Limit, mg/kg Concentration, mg/kg <br /> Benzene 0 005 <0 005 <br /> Toluene 0 005 <0 005 <br /> Ethylbenzene 0 005 <0 005 <br /> Xylene, total 0 015 <0015 <br /> BTEX,total — -- <br /> Gasoline 1 <1 <br /> Detection Limit Multiplier 1 <br /> Percent solids NA <br /> BFB surrpgate, % recovery 893 <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 LUI T 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 surrogate value Is 0 100 mg/kg <br /> NA= Not Applicable <br />• <br /> GTEL Concord,CA MGTEL <br /> 03030330 BXG <br /> ENVIRONMENTAL <br /> LABORATORIES INC. <br />