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680 Chesapeake Drive Redwood City 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-%73 <br /> ID 819 Striker Avenue Suite 8 Sacramento CA 95834 (9t6)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> WED <br /> 4 _ L........ _i _..... s�s� sa..=—s... ..!—_—�• '--w <br /> Gettler Ryari�Geostrategles Client Prol ID Chevron 9-8171, Stockton S fepl� 08/18/98/ / <br /> 6747 Sierra ourt Suite J Sample Descript TB-LB _ _ <br /> a Dublin, CA 94568 Matnx LIQUID G E is TMS ., '+ nil ed 08/31 98 w <br />- Analysis Method 8015Mod/8020 YAC yz / <br /> Attention Deanna Harding _ _ _ Lab Number 980BB24_-01 _ r""t!'_ »'.�K;��= YRe�bd�'09J04 98 _ <br /> QC Batch Number GC083198802009A» <br /> Instrument ID HP9 <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 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) <br /> 050 ND <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 110 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> OroolectManager Page t <br />