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680 Chesapeake Drive Redwood Gty CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget 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)92I-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> tr -_----- - - -- <br /> -1 Gelber RyanLGeostrategies -- Client Prol ID� UNOCAL 2859, Stocktonµ-- _µSampled 06/18/98 <br /> J 6747 Sierra Court Suite J Sample Descript MW-2 Received 06/18/98 ' <br /> Dublin, CA 94568 Matrix LIQUID - <br /> Analysis Method 8015Mod/8020 Analyzed 06/29/98 <br /> , Attention Deanna Harding _ _ Lab Number__9806C89-03 - __ _ _ Reported 07110j98 <br /> QC Batch Number GC062998802002A - <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 .. 20000 .. 90000 <br /> Methyl t-Butyl Ether 1000 N D <br /> Benzene .. 200 ..- -- 1600 <br /> Toluene ... 200 .. .. .» ,. 19000 <br /> Ethyl Benzene .... 200 . . . 4400 <br /> Xylenes (Total) 200 . . . 21000 <br /> Chromatogram Pattern .. .. ... ... GAS <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 115 <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41271 <br /> ranicher <br /> Project Manager Page a <br />