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Sequoia 680 Chesapeake Drive Redwood CLM CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 H Wiget Bane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> jrT_---_ - -_--_ ----- - --�_ <br /> Envlros-- Client Proj ID Shell 6131 Paclflc, Stockton Sampled 09/16/97 <br /> 270 Perkins Ave Sample Descrlpt MW-645' Received 09/19/97 <br /> 3- Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 <br /> Analysis Method 8015Mod/8020 Analyzed 09/29/97 <br />= Attention J GaarderLab Number_ 9709C09-,1.0 ___Reported 10/03/97 F <br /> —..s.i...»........••�_ —=stwr—•••••••••••= <br /> QC Batch Number GCO92597BTEXEXB <br /> Instrument!D GCHP22 <br /> Total Purgeab[e 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 .... . ..... ... 0.0050 .................... 0.011 <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 70 130 100 <br /> 4-Bromofluorobenzene 60 140 90 <br /> � I <br /> I <br /> Analytes reported as N[D were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP 41210 <br /> i <br /> Mike regory <br /> Project Manager page 30 <br />