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/ SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364 9600 • FAX (415) 364-9233 <br /> Wapreahan Engineering, Inc Client Project ID Unocal,#5421,Stockton 7303 Pacific Sampled Dec 5, 1989 <br /> P Q Box 996 Sample Descript Soil Received Dec 6, 1989 <br /> Benicia, CA 94510 Analysis Method California LUFC Manual, 12/87 Extracted Dec 8, 1989 <br /> Attention Mardo Kaprealian, P E First Sample # 912-0369 Analyzed Dec 8, 1989 <br /> Reported Dec 11, 1989 <br /> ORGANIC LEAD <br /> Sample Sample Sample <br /> Number Description Results <br /> mg/k9 (ppm) <br /> 912-0369 A2(25 5) N D <br /> 912-0370 132(26 5) 043 <br /> 912-0371 SWI (13) N D <br /> 912-0372 SWI (19) 021 <br /> Is 912-0373 SW2(20/13) N D <br /> 912-0374 SW2(20/19) 018 <br /> Detection Limits 005 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL <br /> Ob <br /> Belinda C Vega <br /> Project Manager 9120369 KEI <1> <br />