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680 Chesapeake Drive Redwood City CA 94063 (650) 364-9640 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9640 FAX(510)988-9673 <br /> 1a) riker Avenue Suite 8 Sacramento CA 95 (916)921-9600 FAX(916)921 Oa00 <br /> Iwo Analytical *McDowell Blvd North Ste D Petaluma.CA 9495 (707)792-1865 FAX(707)792-0342 <br /> ~blalne Tech Services µ Client�Proj-ID -Shell 7910 Lower Sacramento - Sampled 05/21/98 <br /> ' 1680 Rogers Avenue Sample Descript MW-2 Received 05/22/98 <br /> San,lose, CA 95112 Matrix LIQUID = <br /> Analysis Method 8015Mod/8020 Analyzed 06/02/98 <br /> Attention Fran Thie _ _ _ _ Lab Number 9805F05-02 Y = _ Reported 06111198 <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 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 101 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQ N YTICAL - ELAP #1210 <br /> Peggy Penner <br /> Project Manager Page <br />