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SEQUOIA INALYTICAL <br /> i <br /> 680 Chesapeake Drive • Redwood City CA 94063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> Kapreallan Engineering Inc Client Protect ID Unocal#54421,Stockton 7303 Pacific Sampled Dec 13, 1989 <br /> P O Box 996 Sample Descript Drinking Water Received Dec 14, 1989 <br /> Benicia, CA 94510 Analysis Method EPA 503 1 Analyzed Dec 14, 1989 <br /> Attention Mardo Kapreallan, P E Lab Number 912-1749 E-F Reported Dec 15, 1989 <br /> VOLATILE AROMATIC AND UNSATURATED ORGANIC COMPOUNDS (EPA 503 1) <br /> Analyte Detection Limit Sample Results <br /> N9/L N9/L <br /> Benzene 0 5 N D <br /> Bromobenzene 0 5 N D <br /> n-Butylbenzene 0 5 N D <br /> sec-Butyl benzene 0 5 N D <br /> tert-Butyl benzene 0 5 N D <br /> Chlorobenzene 0 5 N D <br /> 2-Chlorotoluene 0 5 N D <br /> 4-Chlorotoluene 0 5 N D <br /> 1,2-Dichlorobenzene 0 5 N D <br /> 1,3-Dichlorobenzene 05 N D <br /> 1,4-Dichlorobenzene 0 5 N D <br /> Ethylbenzene 0 5 N D <br /> Hexachlorobutadlene 0 5 N D <br /> Isopropylbenzene 0 5 N D <br /> 4 Isopropyltoluene 0 5 N D <br /> Napthalene 0 5 N D <br /> n-Propylbenzene 05 N D <br /> Styrene 0 5 N D <br /> Tetrachloroethene 0 5 N D <br /> Toluene 05 N D <br /> 1,2,3-Tnchlorobenzene 0 5 N D <br /> 1,2,4-Trichl oro benzene 0 5 N D <br /> Trichloroethene 0 5 N D <br /> 1,2,4-T rim ethyl benzene 0 5 N D <br /> 1,3,5-Trimethylbenzene 0 5 N D <br /> o-Xylene 0 5 N D <br /> m-Xylene 0 5 N D <br /> p-Xylene 0 5 N D <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL <br /> 1 bi i—, V <br /> Belinda C Vega <br /> Project Manager 9121749 KEI 45> <br />