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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> M P D'S Services, Inc Client Project IDn <br /> 2401 Stanwell Drive, Suite 400 Sample Matrix Wateal, 6981 Stockton Sampled Feb 28, 1994 <br /> Concord, CA 94520Analysts Method EPA 5030 8015 Mod 8020 Received Feb 28, 1994 <br /> Attention Avo Avedessian First Sample# 4BG3001 / / Reported Mar 1, 1994 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D <br /> fD <br /> pg/L 4BG3001 4BG3002 4BG3003 4BG3004 4BG3005 4BG3006 <br /> MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 <br /> Purgeable <br /> Hydrocarbons 50 88 N D N D N D N D <br /> ND <br /> Benzene 0 50 N D N D N D N D N D <br /> ND <br /> Toluene 050 N D N D N D N D N D <br /> ND <br /> Ethyl Benzene 0 50 N D N D N D N D N D <br /> ND <br /> Total Xylenes 0 50 0 90 N D N <br /> D N D 1 6 093 <br /> Chromatogram Pattern Low Gas <br /> Quality Control Data <br /> FDa <br /> port Limit Multiplication Factor 1 0 1 0 1 0 1 0 1 0 <br /> 10 <br /> tee Analyzed 3/1/94 3/1/94 3/1/94 3/1/94 3/1/94 3/1/94 <br /> Instrument Identification GCHP-3 GCHP-3 GCHP-3 GCHP-17 GCHP-17 GCHP-17 <br /> Surrogate Recovery, % 89 97 99 <br /> (QC Limits = 70-130%) 93 95 99 <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 /> SEQUOIA ANALYTICAL <br /> dua_�� <br /> Suzanne Chin <br /> Project Manager <br /> 4BG3001 MMM <1> <br />