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Sequoia 680 Chesapeake Drive Redwood Cary, CA 94063 (41 ) 364 9600 FAX (41 ) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94596 (5100) 988 9600 FAX (5100) 988 9673 <br /> � Analytical 819 Striker Avenue Sul te 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> �iros, Inc Client Protect ID Shell, 141 N El Dorado,Stockton,CA Samplled Jul 29, 1996 <br /> Jul 29, 1996 <br /> P O Box 259 Sample Matrix Air <br /> Sonoma, CA 95476-0259 Analysis Method EPA 5030/8015/8020 Reported Aug 8, 1996 <br /> Attention Joe Neely First Sample # 607-1297 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with EXX DI INCTION <br /> Reporting Sample <br /> Analyte Limit I ❑ �4 �►,f- `` X996 <br /> ppmv 607-1297 <br /> Influent Air <br /> urgea e <br /> Hydrocarbons 1 4 ND <br /> Benzene 0 016 ND <br /> Toluene 0 013 ND <br /> Ethyl Benzene 0 012 N D <br /> .Total Xylenes 0 012 N D <br /> Chromatogram Pattern -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 <br /> Date Analyzed 07/31/96 <br /> Instrument Identification GCHP-7 <br /> Surrogate Recovery, % 97 <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 />/inda <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> C Schneider <br /> t Manager/Sacramento Laboratory 6071297 ENV <1> <br />