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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> 4„F Analytical 839 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 01oo <br /> ..........� S..iw Z S 11...8_8 <br /> Envlros »� �^ ^ W� » Client Prol� ID Shell 6131 Pacific, Stockton Sampled 07/02/97 <br /> 270 Perkins Ave Sample Descnpt SP-D Received 07/03/97 r_ <br /> Sonoma, CA 95476 Matrix SOLID Extracted 07/09/97 V <br /> Analysis Method 8015Mod/8020 Analyzed 07/09/97 r <br /> Attention_ Joe Neely Lab Number_9707162-04 _Reported 67f17J97 <br /> DC Batch-Number GC070897BTEXEXB <br /> Instrument ID GCHF07 - <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br />---Analyte — — __ _ ___Detection Limit _ , _ Sample Results <br /> mg/K9 _� mg/Kg <br /> TPPH as Gas 10 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 /> Trlfluorotoluene 70 130 92 <br /> 4-Bromofluorobenzene 60 140 102 <br /> » t <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mike Gregory <br /> Project Manager Page 5 <br />