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' Sequoia 680 Chesapeake DRve Redwood City Ca 94063 (415) 364 9600 FAX(415) 364 9233 <br /> `3 404 N Wiget lane Walnut Creek CA 94598 (5to) 988 %00 FAX(5io)988 9673 <br /> Analytical 1191...ker Avenue Suite 8 Sacramento Ca 95834 (916) 92t 9600 FAX(916)921 0100 <br /> EA Engineering Science &Tech Client Pral ID Exxon 7-3942%51539421307 - --- Sampled 04/18/96 �- <br /> 3468 Mt Diablo Blvd Ste B100 Sample Descript Trip Blank Received 04/19/96 <br /> Lafayette, CA 94549 Matrix LIQUID =3 <br /> Analysts Method 8015Mod/8020 Analyzed 04/24/96 <br /> Attention Marla Guensler Lab Number 9604E22-18 _ - _ _-_Reported 05 10j96= <br /> LC Batch Number GC042496BTEX20A <br /> Instrument ID GCHP20 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> 1 Analyte Detection Limit Sample Results <br /> ug/L u9/L <br /> 1 TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether 2 5 N D <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> 1 Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> 1 Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 91 <br /> M <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> ISEQ ]A <br /> LYTICAL - ELAP #1210 <br /> 1 <br /> n <br /> Project Manager Page 's <br />