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equola 680 Chesapeake Dnve Redwood City LA 940634t5 364-9233 <br /> CiO3 404 N Wiget Lane 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 /> w Enviros — -- - - - Client Proi ID W Shell 6131 Pacific, Stockton---�� �Sampled 07/02/97 <br /> 270 Perkins Ave Sample Descript SB-4-61 5 Received 07/03/97 <br /> r Sonoma, CA 95476 Matrix SOLID Extracted 07/11/97 G <br /> Analysis Method 8015Mod/8020 Analyzed 07/12/97 ' <br /> r Attention Joe Neely____ _ _ Lab Number 9707310-13 Reported-_07/18/97 1", <br /> OC Batch Number G00711976TEXEXA <br /> Instrument ID GCHP18 <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 .. ,...... .. . 10 ... .. .. .... 1.8 <br /> Methyl t-Butyl Ether 0 025 N D <br /> Benzene .. 00050 ...... -- .. 0 027 <br /> Toluene •--- - ... 0.0050 .... .. ..... 0 096 <br /> Ethyl Benzene .... .. .. .. 00050 - -- .. ..... 0 023 <br /> Xylenes (Total) .. .. ... .. 00050 ..... ., 0 14 <br /> Chromatogram Pattern: .... .... .. .... ... C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 83 <br /> 4-Bromofluorobenzene 60 140 113 <br /> a <br /> P^alytes reper+ed as N n ..ere-at present above+he sta+ed limit of detection <br /> r <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mike Gregory <br /> ct Manager Page i3 <br />