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a <br /> a <br /> j Sequoia 680 Chesapeake Drive Redwood Crty,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wrget Lane Walnut Creek CA 44598 (510) 988 9600 FAX(5I0)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> EMCON Client Project ID AkOO 2168, Stockton, CA Sampled Jan 20, 1998 <br /> 1433 N Market Blvd Sample Matrix Air Received Jan 21, 1998 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8020, DHS Luft Reported Feb 11, 1998 <br /> Attention Matt Turner First Sample# 801-0664 <br /> TOTAL PURCEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample <br /> Analyte Units Results Results <br /> ppmv 801-0664 801-0665 <br /> Influent Effluent <br /> Purgeable 1,200 27 <br /> Hydrocarbons Reporting L-imit 120 24 <br /> Benzene 28 028 <br /> Reporting Limit 080 0 016 <br /> Toluene 90 0 085 <br /> Reporting Limit 065 0 013 <br /> Ethyl Benzene 12 0 012 <br /> 0 Reporting Limit 060 0 012 <br /> Total Xylenes 92 023 <br /> Reporting Limit 060 0 012 <br /> Chromatogram Weathered Weathered <br /> Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Date Analyzed 01/22/98 01/22/98 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 90 88 <br /> (QC Limits = 60-140%) <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 /> S OIA ANALYTICAL, ELAP #1624 <br /> Ronald W Bobel <br /> Project Manager/Sacramento Laboratory <br /> 8010664 EMC <1 > <br />