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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988%73 <br /> �l(III� Analytiea1 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine-Tech Services - Client Proj ID Shell Stockton/971223-F1- - - - - Sampled 12/23/97 <br /> 1680 Rogers Avenue Sample Descript MW-14 Received 12/23/97 <br /> _ San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 01/06/98 <br /> LS <br /> ,-Attention Fran _e _ _ _ Lab Number 97i2F97-01 - - _ - Reported-01 f07j98-; <br /> QC Batch Number 6C010698BTEX02A <br /> Instrument ID GCHP2 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte 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 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) .. .. ... 050 ... ..... . 0 63 <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 95 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQU I A ALYTICAL - ELAP #1210 <br /> Peggy Penner • <br /> Project Manager Page t <br />