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Sequoia 680 Chesapeake Drive Redwood City,cA 94063 {415} 364-9600 FAX(415) 364-9233 <br /> i900 Bates Avenue,Suite L Concord, CA 94520 (510) 686-9600 FAX(510)68(-9689 <br /> Analytical 819 Striker Avenue,Suite B Sacramento,CA 95834 (916) 921-9600 FAX(91 92i-4100 <br /> bS Services " 'Client Project'lD: Unocal#0788,8203 E. 11th St.,Tracy Sampled: Fell 13, 1995;{ <br /> 2401 Stanwell Dr., Ste. 300 Sample Matrix: Water Received: Feb 13, 1995`;". <br /> Concord, CA 94520 Analysis Method: EPA 3510/8015 Reported: Mar 1, 1995;; <br /> :<Attention: Sarkis Karkarian First Sample#: 502-0798 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte limit I.D. I.D. I.D. I.D. I.D. I.D. <br /> pg/L 502-0798 502-0799 502-0800 502-0801 502-0802 502-0803 <br /> U-1 U-2 U-3 U-4 U-5 U-B* <br /> Extractable <br /> Hydrocarbons 50 N.D. N.D. N.D. N.D. N.D. 910 <br /> Chromatogram Pattern: -- Unidentified <br /> Hydrocarbons <br /> <C16& >C20 <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 1.0 1.0 1.0 <br /> Date Extracted: 2/17/95 2/17/95 2/17/95 2/17/95 2/17/95 2/17/95 <br /> Date Analyzed: 2/21/95 2/21/95 2/21/95 2/21/95 2/21/95 2/21/95 <br /> Instrument Identification: HP-38 HP-3A HP-3A HP-3A HP-3A HP-3A <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, #1271 Please Note; <br /> "This sample does not appear to contain diesel, "Unidentified Hydrocarbons<C16"are probably <br /> nature on File gasoline;">C20"refers to unidentified peaks in the total oil and grease range. <br /> Alan B. Kemp <br /> Project Manager <br /> 5020798.MPD <3> <br />