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SEQUOIA ANALYTICAL <br /> 6B0 Chesapeake Drive • Redwood City CA 94D63 <br /> (415) 364 9600 9 FAX (415) 364 9233 <br /> 0apreaban Engineering Inc Diem Project ID Unocal, Stockton,7303 Pacdic Ave Sampled Nov 17, 1989 <br /> P O Box 913 Sample Descript Soll Received Nov 20, 1989 <br /> Benicia CA 94510 Analysis Method Caldomia LUFi Manual, 12/87 Extracted Nov 20, 1989 <br /> Attention Mardo Kapreallan,P E First Sample# 911-2646 Analyzed Nov 20, 1989 <br /> Reported Nov 21, 19B9 <br /> ORGANIC LEAD <br /> Sample Sample Sample <br /> Number Description Results <br /> mg/kg (ppm) <br /> 911-2646 At ND <br /> 9 11-264 7 A2 017 <br /> 911-2648 81 ND <br /> 911-2649 62 14 <br /> Detection Limits 005 <br /> Analyses reporled as N D were not present above the slated limit of delection <br /> •SEOUOiA ANALYTICAL <br /> bb-.,),C-v <br /> Belinda C Vega <br /> 9 <br /> Project Manager 9112645 KEI <3> <br />