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` Sequoia 680 Chesapeake Drive Redwood Ciq, CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> (1) 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(5 10)988 9673 <br /> II,r Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Enviros Client Prol ID Shell 4315 Waterloo, Stockton Sampled 02/21/96 <br /> 270 Perkins Ave Sample Descript SB-5-24 Received 02/26/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 02/27/96 <br /> Analysis Method 8015Mod/8020 Analyzed 02/28/96 <br /> Attention Joe Neely Lab Number 9602G44-01 Reported 03101196 <br /> QC Batch Number GCO22796BTEXEXB <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 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 /> Trifluorotoluene 70 130 93 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> f I <br /> Gregory <br /> ect Manager Page t <br />