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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 Creels.CA 94598 (925)988-9600 FAX(92S)988-9673 <br /> Analytical 819 Striker Avenue 5uite 8 Sacramento CA 95834 (916)921-9600 FAX(916)911-0100 <br /> 1455 McDowell Blvd North Ste D r'eraluma,CA 94954 (707)791-1865 FAX(707)792-0342 <br /> ttler-Ryan - Dublin Client Project ID Unocal SS-#5049E E Impled Mar 18, 1999 <br /> 47 Sierra Court, Suite J Sample Matrix Water Received Mar 19, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 5030/8015 Mod /Pf f n 6 Reported Mar 29, 1999 <br /> Attention Deanna Harding First Sample # 903-1847 �I'' 11.11 <br /> r--T LLL-1-�YAN INC. <br /> TOTAL PURGEABLE PETROLEUM HYDROCARN$ witt>�TE6� � 1VCTION <br /> tie 1'!ct <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit 10 10 1 D I D I D ID <br /> pg/L 903-1847 903-1848 903-1849 903-1850 903-1851 903-1852 <br /> TB-LB MW-10A MW-10 MW-11 MW-12 MW-13 <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D 13,000 3,200 N D <br /> Benzene 050 N D N D N D 6,200 290 N D <br /> Toluene 050 N D N D N D 210 11 N D <br /> Ethyl Benzene 050 N D N D N D 260 310 N D <br /> Total Xylenes 0 50 N D N D N D 1,700 17 N D <br /> Chromatogram Pattern -- - - Gasoline Gasoline - <br /> Duality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 20 20 10 <br /> Date Analyzed 3/25/99 3/25/99 3/25/99 3/25/99 3/25/99 3/25/99 <br /> Instrument Identification HP-9 HP-9 HP-9 HP-9 HP-9 HP-9 <br /> Surrogate Recovery, % 96 97 96 122 91 96 <br /> (C)C' I imam = 7n-inn%l <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL, #1271 <br /> 0 <br /> lanne Fegley <br /> roject Manager <br /> 9031847 GET <1> <br />