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Sequoia 680 Chesapeake Drive Redwood City,CA 940L (415) 364 9600 FAX (415) 364 9233 <br /> 404 N WLget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Envlros Client Prol ID Shell 2575 Country Club, STCK Sampled~ 01/02/97 <br /> 270 Perkins Ave Sample Descript SS-D Received 01/03/197 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 01/06/97 _ <br /> Analysis Method 8015Mod/8020 Analyzed 01/06/97 <br /> Attention Joe Neely Lab Number 9701065-04 _ Reported_ 01 j15j97 - <br /> dC Batch Number GC010697BTEXEXA <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection limit Sample Results <br /> mg/Kg 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 /> Trifluorotoluene 70 130 89 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> OG egory <br /> ct Manager Page 5 <br />