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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 - FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> !-D— <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> IOMpDS Services Client project Ib Unocal#0123, 1034 Central Ave,Tracy Sampled Sep 5, 1995 <br /> 2401 Stanwell Dr, Ste 300 Sample Matrix Water Received Sep 5, 1995 <br /> Concord, CA 94520 Analysis Method EPA 3510/8015 Mod Reported Sep 19, 1995 <br /> Attention Sarkis Karkanan First Sample # 509-0207 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample <br /> Analyte Limit I D I D I D <br /> lrg/L 509-0207 509-0208 509-0209 <br /> U1 * U2 U3 <br /> Extractable <br /> Hydrocarbons 50 67 ND ND <br /> Chromatogram Pattern Unidentified - <br /> Hydrocarbons <br /> <C15 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 1 0 <br /> Date Extracted 9/7/95 9/7/95 9/7/95 <br /> Date Analyzed 9/7/95 9/7/95 9/7/95 <br /> Instrument Identification 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 <C15"are probably <br /> O'griature on File gasoline <br /> Alan B Kemp <br /> Project Manager <br /> 5090207 MPD <3> <br />