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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-%00 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 SacrSmento CA 95834 (9116)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettier Ryan/Geostrategies Client Prol ID 180138 85/6981, 4707 Pacific - _ Sampled -10/14/98 <br /> 6747 Sierra Court Suite J- - Sample Descript VW-4 - =Recerved -10/14/98 --2 - <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis-Method -80 15 Mod/8020- - --- -----Analyzed -10/23/98 - - — �- <br /> Attention_Deanna Harding__ Lab Number 981 OB89-13_ _ _ - _ _Reported_11 f02f98 <br /> -lstrument ID HP2 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas .. 5000 14000 <br /> Methyl t-Butyl Ether 250 N D <br /> Benzene 50 N D <br /> Toluene 50 N D <br /> Ethyl Benzene .. .. 50 120 <br /> Xylenes (Total) .. .. 50 . . 370 <br /> Chromatogram Pattern <br /> Unidentified HC >C8 <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 101 <br /> nalytes reported as N D were not present above the stated lima of detection <br /> SEQUOIA ANALYTICAL - ELAP 01271 <br /> -:5a - <br /> od Granicher <br /> 'rolect Manager Page 2 <br />