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4DSequoia 6so Chesapeake Dnve Redwood City CA 94063 (415) 364-9600 FAX(41S) 364-9233 <br /> 4117 Analytical 104 N eget lane Walnut Creek CA 94598 (5r0) 988 9600 FAX(5 10)988 %73 <br /> 319 Striker Avenue Since 8 Sacramento CA 95834 (916) 921 96W FAX(9t6)92t-0100 <br /> Brown & Caldwellv A <br /> Client Protect !D Arco 2133-95-5, Stockton Sampled bct -23 1995 <br /> 9616 Micron Ave, Suite 600 Sample Matrix Air Received Oct 24, 1995 <br /> Sacramento, CA 95827 Analysis Method EPA 5030/8015/8020 Reported Nov 7, 1995 <br /> Attention Steve Misner First Sample # 510-0967 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D. I D. <br /> ppmv 510-0967 51 D-0968 <br /> INF EFF <br /> Hurgeable <br /> Hydrocarbons 1 4 240 N D <br /> Benzene 0 016 N D N D <br /> Toluene 0 013 13 0 017 <br /> Ethyl Benzene 0012 014 ND <br /> Total Xylenes 0 012 30 0 072 <br /> Chromatogram Pattern Gasoline <br /> CS-C12 <br /> Quality Control Data <br /> Report Umit Multiplication Factor so 10 <br /> Date Analyzed 10/26/95 10/26/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 110 92 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, E P#1624 <br /> m4, &-dja, <br /> ,Janet dan <br /> Project anager <br /> 5100967 8RS <1> <br />