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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 (510) 988 %00 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 %00 FAX (916)921 0100 <br /> Blaine Tech Services Client Proj ID Shell Stockton/971117-M1 Sampled 11/17/97 = <br /> 1680 Rogers Avenue Sample Descript Dup Received 11/26/97 <br /> San Jose, CA 95112 Matrix LIQUID f <br /> —i Analysis-Method�80151V!od/8020 Analyzed=-12/01/97--; <br /> Attention Fran Thie Lab Number 9711F37-11 _ Reported 12J11197 _ <br /> _QC Batch Number GC1201976TEX02A <br /> Instrument ID GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/L. mg/L <br /> TPPH as Gas 10 26 <br /> Benzene 010 0 69 <br /> Toluene 010 N D <br /> Ethyl Benzene 010 054 <br /> Xylenes (Total) 010 1 6 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 103 <br /> i <br /> Analytes repotted as N D were not present above the stated limit of detection <br /> SEQUOIA A YTICAL - ELAP #1210 <br /> Peggy Pen r <br /> Project Manager Page 6 <br />