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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Enviros Client Prol ID Shell 141 N EI Dorado, Stock Sampled 04/03/96 <br /> 270 Perkins Ave Sample Descript B-7-20 Received 04/04/96 <br /> Sonoma, CA 95476 Matrix SOLID <br /> Analysis Method 8015Mod/8020 Analyzed 04/11/96 <br /> Attention Joe Neely Lab Number 9604470-27 Reported 04119196 <br /> DC Batch Number GC041196BTEX17A <br /> Instrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons w/BTEX : TCLP Extraction <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 1000 1900 <br /> Benzene 10 N D <br /> Toluene 10 N D <br /> Ethyl Benzene 10 N D <br /> Xylenes 10 N D <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 90 <br /> 9 <br /> 4nalytes reported as N ❑ were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br />}Gregory <br />""rolect Manager Page 30 <br />