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` SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 S�P 0 $ � <br /> (510) 686-9600 FAX (510) 686-9689 <br /> V r .,r h/ s-�. A �. v".'r <br /> ence obil X -NP4 3014 -10 <br /> 24, <br /> 4 <br /> ,41992 ston Geoscia „ "'%"' dncRSpmpra <br /> 5870 Stoneridge Drive, Suite 6 Sample Matrtx- Water Received Aug 24, 1992 , <br /> Pleasanton, CA 94588 Analysis Method EPA 5030/8015/8020 Reported Aug 31, 1992 <br /> Attention Cyril Yong First Sample# 208-0980 <br /> ,..,<.'�s�`a,.}s.o tea.k 3,�'„°.'�'`` yk�i fl�fr,r . N� `Y'.Fi`//N..i Y.��Yr Yom,,,,,?F`.�`�.��.n r ...x a�t" a';ir.%}"n,..a,..r � *. •.q�::.�.F�iKN,x� x s.r.Ye�r:r''�4`" .'`y.v <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D. <br /> pg/L 208-0980 <br /> A-1 <br /> Purgeable <br /> Hydrocarbons 50 N D <br /> Benzene 05 ND <br /> Toluene 05 N D <br /> --Ethyl Benzene 0 5 N D <br /> Total Xylenes 05 N D <br /> Chromatogram Pattern -- <br /> Quality CoMol Data <br /> Report Limn Multiplication Factor, 10 <br /> Date Analyzed 8/28/92 <br /> Instrument Iderrtiflcation HP-2 <br /> Surrogate Recovery, % 101 <br /> (OC limns = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> .VEQANALYTICAL <br /> Chlefto <br /> ProjectManager ,ALT 1> <br />