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' SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 0 FAX (510) 686-9689 <br /> Kaprealian Engineering, Inc' Client ProjectlD Unocal Sulk Plant, 2835 Navy Dr";VSto rySampfedY Jul 30; 19924 <br /> 2401 Stanwell Drive, Suite 400 Sample Matrix Soli received Jul 30, 1992 <br /> Concord, CA 94520 Analysis Method EPA 3550/8015 Reported Aug 4, 1992 <br /> Attention Mardo Kaprealian, P E First Sample# 207-0681 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D <br /> mg/kg 207-0681 207-0682 207-0683 207-0684 207-0685 <br /> SW2-A SW2-B SW2-C SW2-0 Blank <br /> Extractable <br /> Hydrocarbons 10 N D 95 14 15 <br /> Chromatogram Pattern Diesel Diesel Diesel <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 1 0 10 10 <br /> Date Extracted 7/31/92 7/31/92 7/31/92 7/31/92 7/31/92 <br /> i <br /> Date Analyzed 8/4/92 8/4/92 8/4/92 8/4/92 8/4/92 <br /> Instrument Identification HP-3 HP-3 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 /> Scott A Chieffo 2070681 KEI <2� <br /> Project Manager <br />