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680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wtget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> a- ) 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)92t-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prol ID Shell 2575 Country Club Sampled 04/23/98 <br /> = 1680 Rogers Avenue Sample Descnpt MW-7 Received 04/24/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/30/98 <br /> ''=Attentlon°Fran Thie Lab Number--9804HO7--06_ _ _ __ _ _ Reported_05/12/98.' <br /> QC Batch Number GC043098BTEX09A <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 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (fatal) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 97 <br /> Analytes reported as N D were not present alcove the sta•ed limit of detection <br /> SEYTICAL - ELAP #1271 <br /> QUOr1 <br /> Peg enner <br /> Project Manager Page 8 <br />