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Sequoia 680 Chesapeake Drive Redwood City,CA 940c,- (415) 364 9600 FAX(415)364 9233 <br /> 404 N Wigct Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Gettler Ryan/Geost rategies Client Prof ID 0no8al-4707 Pacific Ave, Stoc Sampled 07/30/96 „ <br /> 3164 Gold Camp Drive #240 Sample Descript INF Received 07/31/96 <br /> Rancho Cordova, CA 95670 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 08/01/96 <br /> Attention Greg Gurss Lab Number 96071-188-01 Reported 08102/96 <br /> QC'Batch Number GC080196BTEX17A <br /> Instrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 1000 7700 <br /> Benzene 10 N D <br /> Toluene 10 460 <br /> Ethyl Benzene 10 250 <br /> Xylenes (Total) 10 1500 <br /> Chromatogram Pattern <br /> Weathered Gas C8-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 107 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Gregory <br /> Project Manager Page 1 <br />