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F{ <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 15) 364 9600 FAX(415) 364 9233 <br /> 404 N Wigct Lane1 Q � g 8 L ) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Strikcr Avcnue,Suit.8 {` ) 921 9600 FAX(916)921 0100 <br /> L. <br /> MAK <br /> _ _ F-T1LER-RYAN INC. <br />' Gettler Ryan/Geostrategles Client Prol ID Unocal47�Njft�y6� �`� A 'i Sampled 02/26/96 , <br /> 6747 Sierra Court Suite G Sample Descript INF Received 02/27/96 <br /> Dublin, CA 94568 Matrix AIR <br /> Analysis Method 8015Mod/8020 Analyzed 02/28/96 <br /> Attention Steve Carur Lab Number 96021-139-01 Reported 02129f96 <br /> QC Batch Number 6CO22896BTEX02A <br /> Instrument ID GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> TPPH as Gas 1000 1500 <br /> Benzene 10 N D <br /> Toluene 10 120 <br /> Ethyl Benzene 10 20 <br /> Xylenes (Total) 10 93 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 107 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> e Gregory <br /> Project Manager Page S <br />