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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 /> �IIII� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)911-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 707 79 -t86 FAX7 75792-0342 <br /> _ _- 1998 <br /> -:7_ <br /> Get&e_r R an Geostrate les— Client ProjIID UNOCAL 0123, 280047 85 � � 219EL – <br /> 6747 Sierra Court Suite J Sample Descnpt TB-LB ���T�� 298t <br /> Dublin, CA 94568 Matrix LIQUID �cs`�3zR�►� � Tg� <br /> Analysis Method 8015Mod/8020 Ana yz U �3 <br /> Attention Deanna Harding _ _ Lab Number 9806E65-01 _ Reported 07117/98 <br /> RC Batch Number GC070298802004A <br /> nstrument ID HP-4 <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 /> Trlfluorotoluene 70 130 113 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> =- <br /> Tod Granicher <br /> Project Manager Page <br />