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ANALYTICAL RESULTS <br /> Volatile Organics <br /> NEI/GTEL Client ID BLA01CHVOB <br /> 1pogin Number W7100038 <br /> roject ID (number). 970929-M1 Method EPA 8020A <br /> Project ID (name)• CHEVRON/9-4275/2905 W BENJAMIN HOLT DR/STOCKTON/CA Matrix Aqueous <br /> NEI/GTEL Sample Number W7100038 05 W7100038-06 W7100038-07 W7100038-08 <br /> Client ID MW-5 MW 6 MW-7 MW-8 <br /> Date Sampled 09/29/97 09/29/97 09/29/97 09/29/97 <br /> Date Analyzed 10/05/97 10/05/97 10/05/97 10/05/97 <br /> Dilution Factor 25 0 1 00 1 00 1 00 <br /> Reporting <br /> Analyte_ _ Limit Units Concentration <br /> MTBE 5 0 ug/L < 120 23 < 5 0 18 <br /> Benzene 0.5 ug/L 300 1 6 < 0 5 3 2 <br /> Toluene 0 5 ug/L < 12 0 6 < 0 5 0 7 <br /> Ethylbenzene 0 5 ug/L 1500 < 0 5 < 0 5 < 0 5 <br /> Xylenes (total) 0 5 ug/L 1000 < 0 5 < 0 5 < 0 5 <br /> BTEX (total) -- ug/L 2800 2 2 -- 3 9 <br /> TPH as Gasoline 50 u /L 15000 410 < 50 370 <br /> Notes <br /> Dilution Factor <br /> Dilution factor indicates the adjustments made for sample dilution <br /> EPA 8020A <br /> Gasoline range hydrocarbons (TPH) quantitated by GC/FID with purge and trap and modified EPA Method 8015 Analyte list modified to include additional <br /> compounds "Test Methods for Evaluating Solid Waste Physical/Chemical Methods- SW 846 Third Edition including promulgated Update lI <br /> W7100036 06 <br /> The TPH as Gasoline value was 500 u91L which was attributed to the presence of MTBE <br /> W7100038 08 <br /> The TPH as Gasoline value was 450 ug/L which was attributed to the presence of MTBE <br /> 0 I/GTEL Wichita, KS <br /> 100038 Page 2 <br />