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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> ,!D— <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Proj ID Shell 2575 Country Club Blvd Sampled 07/29/98 <br /> 1680 Rogers Avenue Sample Descript MW-12 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/11/98 <br /> Attention Fran Thie _ Lab Number 98071-188-11 Reported 08f 19f 98 <br /> QC Batch Number—GC081198BTEX05A <br /> instrument ID GCHP5 <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 /> Trifluorotoluene 70 130 81 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN ICAL - ELAP #1271 <br /> i <br /> Peggynne <br /> Project ger Page <br />