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SEQUOIA ANALYTICAL <br /> .. 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> .:.\v ', _. H - .S __ -_ .ASC, __...f.: .%�`����\`.� : v ,... � <.- , \Q•�t. <br /> Alton Geoscience �Y Clieni Project CD: MobsQ4-343/30 1 _ {t 7J2b- /2i/92 . <br /> 5870 Stoneridge Drive, Suite 6 Sample Matrix: Water Received: Jul 22, 1992 <br /> Pleasanton, CA 94588 Analysis Method: EPA 3510/3520/8015 Reported: Jul 28, 1992 <br /> Attention: Stephan Rosen First Sample#. 207-0740 <br /> .+:}r... <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.O. <br /> pg/L 207-0740 207-0741 207-0742 <br /> AW-1 AW-3 AW-9 <br /> Extractable <br /> Hydrocarbons 5o N.D. 870 N.D. <br /> Chromatogram Pattern: -- Diesel -- <br /> Quality Control Data <br /> Report Umit Muhipllcatlon Factor: 1.0 1.0 1.0 <br /> Date Extracted: 7/26/92 7/26/92 7/26/92 <br /> Date Analyzed: 7/27/92 7/27/92 7/27/92 <br /> Instrument Identification: HP-3 HP-3 HP-3 <br /> Extractable Hydrocarbons are quantitated against a fresh diesel standard. <br /> Analytes reported as N.D.were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL <br /> &Cehleffflo 2o70rUAt.T <4> <br /> Projed Manager <br />