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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 41) 404 hi W�get lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> %IIS Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> • <br /> - Eriviros Client Prol ID Shell 141 N EI Dorado, Stock Sampled 04/18/96 <br /> 270 Perkins Ave Sample Descrlpt Influent Air Received 04/19/96 <br /> Sonoma, CA 95476 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 04/19/96 <br /> Attention Clyde Galantine Lab Number 9604D36-01 _ Reported 04J23/96 <br /> QC Batch Number GC041996BTEX17A <br /> instrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detections Limit Sample Results <br /> ppmv ppmv <br /> TPPH as Gas 28 N D <br /> Benzene 0 031 N D <br /> Toluene 0 027 N D <br /> Ethyl Benzene 0 023 N D <br /> Xylenes (Total) 0 023 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 93 <br /> I <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> AA��Z 0- - <br /> Gregory <br /> sect Manager Page t <br />