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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(4t5) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> IWO Analytical 8 t 9 Striker Avenue Swte 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> w Pacrfic Environmental Group _ - Client Proj 1D 310-040 5A/2859,Stockton µ Sampled 06/06/96 <br /> 2025 Gateway Place, Suite 440 Sample Descrlpt Effi Received 06/07/96 <br /> m San.Jose, CA 95110 Matrix AIR Extracted 06/07/96 <br /> - Analysis Method 8015Mod/8020 Analyzed 06/07/96 - <br /> Attention Andrew_Lehane Lab Number 9606268-02 _ _ Reported 06113196 <br /> QC Batch Number GCOfi0796BTEX17A - <br /> Instrument 1D 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 27 <br /> Benzene 010 4 8 <br /> Toluene 0 10 1 7 <br /> Ethyl Benzene 0 10 0 19 1 6 <br /> Xylenes (Total) 010 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 8 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - E[AP #1210 <br /> /n q <br />*�ja Hirotsu <br /> Project Manager page 2 <br />