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GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Phone (209) 572-0900 <br /> Modesto, CA 95351 FAX (209) 572-0916 <br /> F <br /> A <br /> QC REPORT <br /> ' Report# J259-17 Date: 9/24/98 <br /> Lab ID Dates Analyzed: 9/22/98 <br /> M.J. Kloberdanz &Associates Method: 8020 <br /> P.O. Box 576981 <br /> Modesto CA 95357 <br /> Samples Analyzed: J21667,J21668,J21669,J21771,J21773 <br /> Sample Spiked: J21668 <br /> Analyte Matrix Spike Matrix Spike Relative Blank <br /> %Recovery Duplicate % Percent <br /> Recovery Difference(%) <br /> Benzene 94.4 94.2 0.2 ND <br /> ' Toluene 93.3 92.8 0.5 ND <br /> Ethyl Benzene 95.2 94.4 0.8 ND <br /> Gasoline 979 99.3 1.5 ND <br /> ' Sy via Krenn Donna Keller ' <br /> Chemist Certification # 1157 Laboratory Director <br />