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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> f <br /> Sequoia 404 N Wiget lane Walnut Creek Com.94598 (9Z5)988-9600 FAX(92S)988-9673 <br /> W � 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)92]-9600 FAX(916)921-0100 <br /> ' 'fs Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prod ID Shell 1071 North Main St Sampled 10/07/98 <br /> 1680 Rogers Avenue Sample Descript MW-1 Received 10/08/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 10/17/98 <br /> Attention Fran Thle Lab Number 9810727-01 Reported 10/23[98 <br /> QC Batch Number GC1017986TEX21A <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L. <br /> TPPH as Gas 50 460 <br /> Methyl t-Butyl Ether 25 2000 <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 2 1 <br /> Xylenes (Total) 0 50 1 9 <br /> Chromatogram Pattern <br /> Gas& Unidentified HC C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 105 <br /> 0 <br /> Analytes reported as N D er not present above the stated limit of detection <br /> SEQUOIA A YT CAL - EL.AP #1210 <br /> Peggy Penn <br /> orct Manag Page 4 <br />