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' ( ■ , Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Fane Walnut Creek, CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> I� Analytical 819 Stnker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> - Pacific Environmental Group Client Proj ID 310-040 5A/2859,Stockton Sampled 04/09/96- <br /> 2025 Gateway Place, Suite 440 Sample Descript Effl Received 04/10/96 <br /> = San Jose, CA 95110 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 04/11/96 <br /> Attention Andrew Lehane Lab Number 9604721-02 Reported 04117j96 <br /> CC Batch Number GC0411966TEX17A - <br /> Instrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 10 20 <br /> Benzene 0 10 <br /> Toluene 010 0 38 <br /> 017 <br /> Ethyl Benzene 010 Oil <br /> Xylenes (Total) 0 10 1 1 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 102 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> udia Hirotsu <br /> Project Manager Page 2 <br />