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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 - Sacramento, CA 95834 <br /> (916) 921-9600 - FAX (916) 921-0100 <br /> Murray&Associates Client Project 10 Langston's Market Sampled Apr 23, 1993 <br />' 5051 Lexington Circle Sample Matrix Water Received Apr 23, 1993 <br /> Loomis, CA 95650 Analysis Method EPA 5030/8015/602 Reported Apr 30, 1993 <br /> Attention Kent Murray First Sample # 304-0749 <br />' TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />' Reporting Sample Sample Sample Sample <br /> Analyte Limit I D I D. I D. I D <br /> ug/L 304-0749 304-0750 304-0751 304-0752 <br />' MW-1 MW-2 MW-3 MW-4 <br /> Purgeable <br /> Hydrocarbons 50 180,000 400 83,000 N D <br /> Benzene 0 5 17,000 N D 17,000 15 <br />' Toluene 0 5 39,000 N D 16,000 N D <br />' Ethyl Benzene 05 4,900 N D 1,600 N D <br /> Total Xylenes 0 5 25,000 N D 12,000 N D <br />' Chromatogram Pattern Gas Gas Gas <br />' Quality Control Data <br />' Report Limit Multiplication Factor 1,000 10 400 10 <br /> Date Analyzed 4/27/93 4/27/93 4/27/93 4/27/93 <br />' Instrument Identification HP-2 HP-2 HP-2 HP-2 <br /> Surrogate Recovery, % 100 120 97 102 <br />' (QC Limits = 70-130%) <br />' Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> 6SEQUOIA ANALYTICAL <br /> 1J C0 cLq a rr)t kf-,-c i,r, <br /> Wendy AmuMsen <br /> Laboratory Director <br /> 3040749 MMM c 1> <br />