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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 /> 4-, 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> - I�,� Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> Blaine Tech Services - Client Prol ID Shell 7910 Lower Sacramento Sampled 07/28/98 _ <br /> 1680 Rogers Avenue Sample Descript EB Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID 98 06zed 08 <br /> Analysis Method 8015Mod/8020 Analyzed 08/06/98 <br /> Attention Fran Thie- - Lab Number 98071-180-05 Reported 08119198 <br /> OC Batch Number GCO60698BTEX09A <br /> Instrument ID GCHP9 <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 DD <br /> Benzene 0 50 <br /> 050 N D <br /> Toluene <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 97 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUjAA ICAL - ELAP #1271 <br /> P PProject r Page 5 <br />