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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> �I Analytical 819 Stinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Fugro West, Inc µ Client Prol ID 9347-1044, Exxon 7-0137 Sampled 05/12/95 <br /> 1050 Melody Lane, Suite 160 Sample Descript MW-4 Received 05/17/95 <br /> Roseville, CA 95678 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 05/22/95 <br /> Attention Pual Graffi Lab Number 9505C1404r _ _ _ Reported_05125195 <br /> QC Batch Number GC052295BTEX20A - <br /> Instrument lD GCHP20 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Benzene 0 50 N D <br /> Toluene 0 50 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 85 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - E[.AP 01210 <br /> Vickie Tague Clark <br /> Project Manager Page 4 <br />