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ows%6, <br /> oNorth State Environmental <br /> Chemical Waste Disposal Trucking Consulting <br /> C E R T I F I C A TE OF ANALYSIS <br /> Lab Number 98-1103 <br /> Client: Western Geo-Engineers <br /> Project Sanchez <br /> Date Reported 09/21/98 <br /> Gasoline, BTEX and MTBE by Methods 8015M and 8020 <br /> Analyte Method Result Unit Date SampledDate Analyzed <br /> ample . 98-1103-01 Client ID MW 1 09/09/98 WATER <br /> asoline 8015M 30000 ug/L 09/16/98 <br /> Benzene 8020 4900 ug/L <br /> Ethylbenzene 8020 1300 ug/L <br /> MTBE 8020 * 260 ug/L <br /> Toluene 8020 670 ug/L <br /> Xylenes 8020 6800 ug/L <br /> Sample 98-1103-02 Client ID- MW 2 09/09/98 WATER <br /> Gasoline 8015M ND 09/16/98 <br /> Benzene 8020 ND <br /> Ethylbenzene 8020 ND <br /> MTBE 8020 ND <br /> Toluene 8020 ND <br /> Xylenes 8020 ND <br /> Sample : 98-1103-03 Client ID: MW 3 09/09/98 WATER <br /> Gasoline 8015M 110 ug/L 09/16/98 <br /> Benzene 8020 ND <br /> Ethylbenzene 8020 6 ug/L <br /> MTBE 8020 11 ug/L <br /> Wyluene 8020 ND <br /> lenes 8020 4 ug/L <br /> Page 7 <br /> * Confirmed by GC/MS Method 8264 <br /> P 0 Box 5624 • South San Francisco California 94083 650- 588 - 2838 FAX 588 - 1950 <br />