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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364.9600 FAX(415) 364-9233 <br /> t900 Bates Avenue,Suite L Concord,CA 94520 (510) 686-96()o FAX(510)686-9689 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Analytical <br /> M '8er.vices ..... .Client Proijebt IV I Unocal#078.8,8203 E. i.,1 th:1St.,- Tracy. . . .......S m V.ed':'-'''"Feb 13, 1995:" <br /> 2401 Stanwell Dr., Ste. 300 Sample Matrix: Water Received: Feb 13r 1995i::;"'. <br /> Concord, CA 94520 Analysis Method: EPA 3510/8015 Reported: Mar 1, 1995.::.:: <br /> Attention: Sarkis Karkarian First Sample 502-0798 <br /> . ......... <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-6* <br /> Extractable <br /> Hydrocarbons 50 N.D. N.D. N.D. N.Q. N.D. 910 <br /> Chromatogram Pattern: Unidentified <br /> Hydrocarbons <br /> <C16& >G20 <br /> • <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-313 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 /> *Signature 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 />