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Sequoia 680 Chesapeake Dave Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> i 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services", Client Prol ID -~ Chevron 9-1918/970207-H1 Sampled 02/10/97 <br /> 1660 Rogers Avenue Sample Descrlpt MW-3 Received 02/10/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/12/97 <br /> Attention Fran Thie„ Lab Number 9702482-01 Reported 02118197 , ' <br /> QC Batch Number GCO21297BTEX06A - - - - <br /> Instrument ID GCHP06 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyse 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 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 107 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQ 1 ALYTICAL - ELAP #1210 <br /> enner <br /> Prolec Manager Page <br />