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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)304-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9ZI-9600 FAX(916)921-0100 <br /> ',r Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> -- - -- _ _ _ <br /> Blaine-Tach Services - Client Prol ID Shell 2575 Country Club - Sampled 04/23/98 <br /> 1680 Rogers Avenue Sample Descript MW-3 Received 04/24/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/30/98 <br /> -_Attention =Fran Thie r _Lab Number_9804H07-02 -- _�_- :Reported =05il2198 <br /> QC-Batch Number GCO43098BTEX09A --- - - - - - - - - - -- -- - _ - - - <br /> instrument ID GCHP9 <br /> Total Purgeable 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 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 97 <br /> Analytes reported as N D w t present above the stated limit of detection <br /> SEQUOIA A LYTI AL - EIAP #1271 <br /> Peggy ner <br /> Project Manager Page <br /> CD <br />