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North State Environmental Laboratory CA FLAP#1753 <br /> 90 South Spruce Avenue, Suite V • South San Francisco, CA 94080 • (650) 266-4563 • FAX (650) 266-4560 <br /> CERTIFICATE OF ANALYSIS <br /> Lab Number 00-0311 <br /> Client Western Geo-Engineers <br /> Project R603-Over Ex <br /> Date Reported 03/16/2000 <br /> Gasoline, BTEX and MTBE by Methods 8015M and 8020 <br /> Lead by Method 7420, AA Spectroscopy <br /> Analyte Method Result Unit Date -Sampled Date Analyzed <br /> Sample 00-0311-01 Client ID SP 1-4 03/06/2000 SOIL COMP <br /> Wolzne 8015M 170 mg/Kg 03/09/2000 <br /> nzene 8020 0 006 mg/Kg <br /> Ethylbenzene 8020 1 1 mg/Kg <br /> MTBE 8020 *ND <br /> Toluene 8020 0 5 mg/Kg <br /> Xylenes 8020 11 mg/Kg <br /> Lead 7420 12 mg/Kg 03/10/2000 <br /> 0 <br /> *Confirmed by GUMS method 8260 Page 1 <br />