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} <br /> Q 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 /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 {916}921-9600 FAX 1916}9Z1-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707 792-1865 FAX 707 792-0342 <br /> I Gettler RyaniGeostrategies Client Proi-ID Unocal SS#5417, 180179 85 Sampled-11/23/98 <br /> 116747 Sierra ourt Suite J Sample Descnpt MW-3 Received 11/23/98 _ <br /> Dublin, CA 94568 Matrix LICUID _ <br /> R Analysis Method 8015Mod/8020 Analyzed 12/02/98 ; <br /> Attention Deanna Harding _ _ _Lab Number 9811A00-04 _ Reported 12f 17198 <br /> OCµBatch Number GC120298802005A <br /> Instrument ID HP5 <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 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 102 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01271 <br /> X"" r <br /> er <br /> ct Manager Page 7 <br />