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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (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 Stnkcr Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 OtOO <br /> Enviros _ Client Prod ID - Shell 2575 Country Club, Stck Sampled 01/02/97 <br /> 270 Perkins Ave Sample Descript MW-8-A Received 01/03/97 <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 9701119-03 Reported 01J09J97 <br /> OC Batch Number GCO10697BTEXEXA - <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 1 0 N D <br /> Methyl t-Butyl Ether 0 025 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 70 130 108 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Ve-If 11-10e� <br /> regory <br /> ct Manager Page 3 <br />