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Sequoia 680 Cl,"apcake Drive Redwood Ciry Ca 94063 (415) 364 9600 F-kX(415) 364 9233 <br /> y 404 ` Wigec Lane Walnut Creck Ca 94598 (510) 988 9600 FaX(310) 988-9673 <br /> �„�► Analytical 319 Scrnkcr Avcnuc Sui=c 8 Sacramento Ga 95334 (916) 92t 9600 FAX(916)921 0100 <br /> 1 <br /> EA Engineering Science &Tech Client Prol ID Exxon 7-3942/8373942 1307 Sampled 10/19/95 <br />' 3488 Mt Diablo Blvd Ste B100 Sample Descrlpt 3942 MW9PP Received 10/20/95 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 10/24/95 <br /> Attention Tracy Faulkner Lab Number 9510P27-11 Reported 10J27J95 <br /> QC Batch Number GC102495BTEX21 A <br /> Instrument ID GCHP21 <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 1000 4900 <br /> Methyl t-Butyl Ether 50 79 <br /> Benzene 10 840 <br /> Toluene 10 120 <br /> Ethyl Benzene 10 100 <br /> Xylenes (Total) 10 320 <br /> Chromatogram Pattern Gas <br />' Surrogates Control Limits % % Recove <br /> Trifluorotoluene 70 130 78 <br /> I <br /> 1 <br /> r <br /> Analytes reported as N D were not present above the stated I,ma of detection <br /> SEQUOIA AL AL - ELAP #1210 <br /> eggy Fvgger <br /> Proiect Manager Page 71 <br /> n� <br />