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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 4a) <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North 5te D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> _ Blaine Tech Services - -Client Proj 1D y Shell 2575 Country Club Blvd Sampled 07/29/98 <br /> 1680 Rogers Avenue Sample Descript MW-9 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/10/98 <br /> Attention Fran Thie _ Lab Number 9807H87-08 Reported 08119198 <br /> QC Batch-Number-GC081098BTEX02A <br /> Instrument ID GCHP2 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 110 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI NA YTICAL - ELAP #1271 <br /> Peggy Pen r <br /> Protect Manager Page <br />