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• 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233(925)88-9673„a- <br /> Sequoia <br /> 64-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (9Z5)988-9600 FAX(925)88-9673„ <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0347- <br /> Blaine <br /> 92-0342Blaine Tech Servlces Client Prol� ID Shell 620 W~Charter Way i Sampled 08/11/98 <br /> - 1680 Rogers Avenue Sample Descript MW-2 Received 08/14/98 _ <br /> San.dose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/28/98 „ <br /> Attention Fran Thie _ Lab Numberr 9808909-02_µ Reported 09f25198__ <br />—QC Batch Number�GCOO82898BTEX05A <br /> Instrument ID GCHP5 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Lima Sample Results <br /> ug/L ug/L <br /> TPPH as Gas .. 2000 .. 6700 <br /> Methyl t-Butyl Ether 100 230 <br /> Benzene 20 - -- - 93 <br /> Toluene 20 N D <br /> Ethyl Benzene .. .. 20 ... ISO <br /> Xylenes (Total) .. 20 .. 290 <br /> Chromatogram Pattern .. .. _ C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifiluorotoluene 70 130 89 <br /> Analytes reported as N we a not present above the stated limit of detection <br /> SEQUOI L CAL - ELAP #1271 <br /> Peggy Penn <br /> Project Manager Page <br />