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1 <br /> GeoAnalytical Laboratories, Inc. <br /> • 1405 Kansas Avenue Phone 209 572-0900 <br /> ' { ) <br /> Modesto, CA 95351 FAX (209) 572-0916 <br /> QC REPORT <br /> r <br /> ' Report# J198-10 Date: 08/14/98 <br /> Lab ID Dates Analyzed: 07/20/98-07/21/98 <br /> 1 <br /> American Geological Services Method: 8020 <br /> r 14847 Mono Way <br /> Sonora CA 95370 <br /> 1 <br /> Samples Analyzed: J21078-79 <br /> 1 <br /> Sample Spiked: Method Spike <br /> r• <br /> Analyte Method Spike Method Spike RPD Blank <br /> % Recovery Duplicate % <br /> ' Recovery <br /> Benzene 99.4 97.0 2.4 ND <br /> ' Toluene 97.1 94.9 2.3 ND <br /> Ethyl Benzene 106.1 102.1 4.4 ND <br /> Gasoline 102.0 101.0 1.1 ND <br /> 1 <br /> 1 . <br /> 1 <br /> r <br /> ' Sy via Krenn Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />