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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> r <br /> Enviros Client Prol ID - Shell 6131»Pacific,Stockton » »Sampled—09/16/97 <br /> 270 Perkins Ave Sample Descrlpt MW-6-30' Received 09/19/97 I <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 E <br /> Analysis Method 8015Mod/8020 Analyzed 09/26/97 E <br /> _ __Reported 1 X03197 <br /> Attention J Gaarder Lab Number 9709009-08 <br /> ,..,,......�-__...r.»....... �_- ..»..... <br /> yC Batch Number 6C092597BTEXEXB <br /> nstrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg m9/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 (rota!) 00050 <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 79 <br /> 4-Bromofluorobenzene 60 140 87 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> A <br /> Mike Gre ory <br /> Project Manager Page 24 <br />