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Sequoia 684 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wigec Lane Walnut Creek CA 94598 (510) 988-9600 FAX(510) 988 9673 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 96W FAX(916) 921 0100 <br /> Delta Environmental Consults Client Proj ID Exxon 7-3708, D093-809 Sampled 05/08/97 a <br /> 3164 Gold Camp Drive, #200 Sample Descript VW-3-5 Received 05/09/97 = <br /> Rancho Cordova, CA 95670 Matrix SOLID Extracted 05/15/97 = <br /> Analysis Method 8015Mcd/8020 Analyzed 05/15/97 <br /> Attention Keoni Almeida Lab Number 9705525-01 _ _ _ Reported 05116/97 <br /> QC Batch Number�GCO51597BTEXEXA <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/K9 <br /> TPPH as Gas 1 0 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 102 <br /> 4-Sromofluorobenzene 60 140 119 <br /> Analytes reported as Af D were not present above the stated limit of detectlan <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> e <br /> ike 4egory <br /> Project Manager Page 3 <br />