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ia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 -FAX(650)364-9233 <br /> Sequoia <br /> 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 /> d <br /> -Blame Tech Services - Client Prol ID- Shell Stockton%971009-G2 Sampled 10/09/97 <br /> 1680 Rogers Avenue Sample Descript DUP Received 10/10/97 <br />— ,_San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method -8015Mod/8020 nalyzed -10/14/97—;=, <br /> Attention Fran Thie Lab Number 9710596-09 _ Reported 1 IP197_ - <br /> OC Batch Number GC101497BTEX17A <br />_Instrument ID GCHP17 <br /> Total Purgeali Petroleum Hydrocarbons(TPPH)-with-BTEX-and-MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas .. ..... . - 250 -• - - -• 1900 <br /> Methyl t-Butyl Ether .... -- - - 2 5 - •-- <br /> 17 <br /> Benzene - -. 2.5 ... 16 <br /> Toluene •• --- 25 . ----- -- - ... 52 <br /> Ethyl Benzene .... . .. 2 5 ... .. .. 19 _ <br /> Xylenes (Total) ... .. 25 -. .-- .-- 140 <br /> Chromatogram Pattern .. .. .. C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trr luorotoluene 70 130 89 <br /> Analytes reported N D were not present above the stated limit of detection <br /> SEQ A ALYTICAL - ELAP #1210 <br /> Peggy er <br /> Project Manager Page 27 <br />