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Sequoia 680 Chesapeake Drive Redwood City,CA 94053 (650) 364-9600 FAX(650)364-9233 <br /> 4(D 404 N Wiget Lane Walnut Creek CA 94598 (510) 988-9600 FAX(5 10) 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 Shell Stockton/971117-M1 _ Sampled 11/17/97 <br /> 1680 Rogers Avenue Sample Descript MW-7 Received 11/26/97 = <br /> San Jose, CA 95112 Matrix LIQUID ; <br /> Analysis Method 8015Mod/8020 Analyzed 12/01/97 <br />- Attention Fran Thie Lab Number 9711 F35-07 _ Reported 12f 11/97 <br /> QC Batch Number GC120197STEX02A - <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 0 050 024 <br /> Benzene 000050 N D <br /> Toluene 000050 N D <br /> Ethyl Benzene 0.00050 00035 <br /> Xylenes (Total) 000050 00028 <br /> Chromatogram Pattern .. . C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 128 <br /> 0 <br /> Analytes reported as N D werLpresen, ove the stated limit of detection <br /> SEQUOIA A L LAP #1210 <br /> ggy Penn <br /> Project Manager Page 21 <br />