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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(4t5) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)998 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 92119600 FAX'(916)921 0100 <br /> Eriviros « �µ -« Client Prol» ID Shell fi131 Paclf[c,Stockton -Sampled 07/02/97 F <br /> 270 Perkins Ave Sample Descrlpt SB-1-11 5 Received 07/03/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 07/11/97 <br /> r Analysis Method 8015Mod/8020 Analyzed 07/11/97 <br /> Lab Number 9707310µ02 _ Reported fl7»f 18197 �, <br /> - <br /> Attention_Joe Neem <br /> -QC Batch Number GC071197BTEXEXA— — <br /> Instrument ID GCHP07 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte— _ _ — Detection Limit —__ Sample Results <br /> m9/Kg mg/K9 <br /> TPPH as Gas 10 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 /> Tr[fluorotoluene 70 130 71 <br /> 4-Bromofluorobenzene 60 140 78 <br /> Analytes reported as N D we,[e not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP *1210 <br /> Mike regory 2 <br /> Project Manager Page <br />