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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 /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921 otoo <br /> 4455 McDowell Blvd North Ste D f eta3uma CA 94954 (707) 792 1865 FAX (707) 792 0342 <br /> 1911 <br /> Delta Environmental Client Prol ID eXXON 7-3708 D093-809 Sampled 12/16/98 <br /> 3164 Gold Camp Drive #200 Sample Descript MW1 Received 12/16/98 <br /> Rancho Cordova CA 95670 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 12/29/98 <br /> Attention Jim Brownell Lab Number 9812A76-01 Reported 01/04J99 <br /> OC Batch Number GC12299813TEX17A <br /> Instrument ID GCHP17 <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 22 <br /> Benzene 050 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 108 <br /> analytes reported as N ❑ were not present above the stated limEt of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Wei Shim <br />)roject Manager Page 1 <br />