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•" Sequoia 680 Chesapeake Drive Redwood City,CA 9400(415) 364 9600 FAX(415) 364 9233 <br /> 45) 404 N Waget 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 /> 0 <br /> Gettler Ryan/Geostrategies Client Proj ID Unocal 5707 March Lane-6981 Sampled 06/25/96 <br /> 3164 Gold Camp Drive #240 Sample Descript INF Received 06/26/96 <br /> Rancho Cordova, CA 95670 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 06/27/96 <br /> =Attention Greg Gurss Lab Number 96061718-01 Reported 07f02196, ; <br /> QC Batch Number GC062796BTEX17A <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 3200 <br /> Benzene 10 N D <br /> Toluene -- - 10 210 <br /> Ethyl Benzene .. 10 89 <br /> Xylenes (Total) .. 10 480 <br /> Chromatogram Pattern <br /> Weathered Gas .. C7-C12 <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 113 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> W. Gregory <br /> Project Manager Page t <br />