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,-!D— Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Blaine Technical Services Client Prod ID 941114-L1, Chevron S221-5 Sampled 11/14/94 <br /> 985 Timothy Drive Sample Descript TB Received 11/15/94 ' <br /> ' San Jose, CA 95133 Matrix LIQUID <br /> ` Analysis Method 8015Mod/8020 Analyzed 11/21/94 <br /> Attention Jim Keller Lab Number 9411048-04 Reported 11J22194 <br /> _ <br /> QC Batch Number GC112194BTEX20A <br /> Instrument ID GCHP20 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 85 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI ALYTICAL - ELAP #1210 <br /> anne Chin <br /> Project Manager Page 4 <br />