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Client Number TOU01CHV08 <br /> Project ID Chevron,Stockton <br /> Work Order Number C3-03-0330 <br /> ANALYTICAL RESULTS <br /> Volatile Organics In Soil <br /> EPA Methods 8020 and Modified 8015a <br /> GTEL Sample Number 09 10 11 12* <br /> Client Identification LE LW RE RW <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 03/19/93 03/19/93 1 03/19/93 03/19/93 <br /> Detection <br /> Analyte Umd, mg/kg Concentration, mg/kg <br /> Benzene 0 005 <0 005 <0 005 <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 0 057 <br /> Xylene,total 0 015 <0 015 <0 015 <0 015 019 <br /> BTEX, total -- -- -- -- 025 <br />• Gasoline 1 1 <1 <1 <1 38 <br /> Detection Limit Multiplier 1 1 1 1 <br /> Percent solids 845 772 79 0 81 5 <br /> BFB surrogate, % recovery 76 5 712 800 786 <br /> a Test Methods for EvaluatingSolid Waste,SW-846,Third Edition,Revision 0,US EPA November 1986 Modification for TPH as <br /> gasoline as per California tate Water Resources Board LUFlr 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 /> " TFT recovery reported due to interference of the target compounds at the BFB peak <br /> GTEL Concord,CA NGTEL <br /> 03030330 BXG <br /> ENVIRONNIENTAL <br /> LA302ATORIES INQ <br />