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Sequoia "esapeake Drive Redwood Qty CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(9z5)988-9673 <br /> IWO Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)92t-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i <br /> GettlerRyan[Geostrategles -- µ - ClientProl ID Tosco SS#6981, 18013885 �- - Sampled 05/27/98 _ <br /> 3 6747 Sierra Court Suite J Sample Descrlpt VW-1 Received 05/28/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/04/98 <br /> - Attention Deanna Harding Lab Number 9805H47-11 _ _ Reported 07f 24198 „ <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) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 97 <br /> I <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1849 <br /> 1Wranicher <br /> tMaa <br /> t Manager Page 21 <br />