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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 354+9600 FAX(650)364-9233 <br /> 404 N Wlget 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 /> Analytical 1455 McDoweu Blvd North,Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-034Z <br /> Gettler RyaniGeostrategies Client Prol 1D Former Unocal 5S#2859 Sampled 12/04/98 9 <br /> 13 6747 Sierra ourt Suite J Sample Descnpt MW-7 Received 12/04/98 a <br /> 2, Dublin, CA 94568 Matrix LIQUID Extracted 12/15/98 <br /> Analysis Method 8015Mod/8020 Analyzed 12/15/98 <br /> Attention Deanna Harding____ Lab Number 9812431-08 Reported 12/18L8 _- <br /> QC~Batch Number GC121598802002A <br /> Instrument ID HP-2 <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 /> Xyfenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 106 <br /> 0 <br /> Analytes reported as N D wer of present above the stated limit of detection <br /> SEQUOIA ANA I L - ELAP <br /> Tod Gra h <br /> Project Manager page 15 <br />