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=CE1UEC .^ 1 3 1992 <br /> j SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 - FAX (415) 364-9233 <br /> -RESNA Client Project ID W0402, Holt Bros , Stockton Sampled v Jul 28, 1992 <br /> 1710 Main Street Sample Matrix Water Received Jul 29, 1992 <br /> Escalon, CA 95320 Analysis Method EPA 5030/8015/8020 Reported Aug 10, 1992 <br /> Attention Bill Channell First Sample# 207-4698 in ` <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. 1 D I.D. <br /> Ng/L 207-4698 207-4699 207-4700 <br /> MW-4 MW-5 MW-6 <br /> Purgeable <br /> Hydrocarbons 50 ND 65 N D <br /> Benzene 050 N D 1 4 N D <br /> Toluene 050 ND N D N D <br /> . Ethyl Benzene 050 N D N D N D <br /> Total Xylenes 050 N D N D N D <br /> Chromatogram Pattern -- iron-gas -- <br /> C4-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 10 <br /> Date Analyzed 7/31/92 7/31/92 7/31/92 <br /> Instrument Identification GCHP-3 GCHP-3 GCHP-3 <br /> Surrogate Recovery, % 100 119 103 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected above the stated reporting limit <br /> *SEQUOIA ANALYTICAL <br /> is Le�/" 674 <br /> roject Manager 2074698 wAT <1> <br />