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u)- Y 11 <br /> l-au� <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 1(415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> QPDS Services Client Project 1D Unocal#0123, 1034 Central Ave,Tracy Sampled Jun 10, 1996 <br /> 2401 Stanwell Dr , Ste 300 Sample Matrix Water Received Jun 10, 1996 <br /> Concord, CA 94520 Analysis Method EPA 3510/8015 Mod Reported Jun 21, 1996 <br /> Attention Jarrel Crider First Sample # 606-0860 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample <br /> Analyte Limit I D I D I D <br /> ug/L 606-0860 606-0861 606-0862 <br /> U-1* U-2* U-3 <br /> Extractable <br /> Hydrocarbons 50 280 260 N D <br /> Chromatogram Pattern Unidentified Unidentified - <br /> Hydrocarbons Hydrocarbons <br /> >C18 >C18 <br /> • <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 1 0 1 0 <br /> Date Extracted 6/12/96 6/12/96 6/12/96 <br /> Date Analyzed 6/13/96 6/13/96 6/13/96 <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 >C18'refers <br /> nature on File to unidentified peaks in the total oil and grease range <br /> Alan B Kemp <br /> Project Manager <br /> 6066866 MPD <3> <br />