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Sequoia 680 Chesapeake Drive Redwood City CA 94 (650) 364-9600 FAX(650}364-9233 <br /> 404 N Wlget Lane Walnut Creek,CA 9459898 (925)988-9600 FAX(925)988-9673 <br /> 41) 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-Oloo <br /> qW 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 620 W Charter Way Sampled 11/09/98 <br /> 1680 Rogers Avenue Sample Descript MW4 Received 11/11/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 11/16/98 <br /> "Attention-Fran Thle Lab-Number rn9811689-04 Reported -11 725f98 <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 1600 <br /> Methyl it-Butyl Ether 25 78 <br /> Benzene 050 60 <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 68 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 107 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA A ICAL - ELAP #1210 <br /> Peggy Pen <br /> Aw <br /> Project Manager Page <br />