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GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Phone (209) 57.2-0900 <br /> Modesto, CA 95351 FAX (209) 572-0916 <br /> QC REPORT <br /> Report# J352-05 Date: 01/04/99 <br /> Dates Analyzed: 12/29/98-12/30/98 <br /> Thorpe Oil Method: 8020 <br /> PO Box 357 <br /> Lodi CA 95241-0357 <br /> Samples Analyzed: J2650,J22651,J22652,J22653,J222654 <br /> Sample Spiked: J22650 <br /> Analyte Matrix Spike Matrix Spike RPD Blank <br /> %Recovery Duplicate % <br /> Recovery <br /> Benzene 99.5 98.6 1.0 ND <br /> Toluene 100.6 100.3 0.3 ND <br /> Ethyl Benzene 100.3 99.0 1.3 ND <br /> Gasoline 98.2 97.2 1.1 ND <br /> i <br /> Sylvia Krenn Donna Keller <br /> Chemist Certification # 1157 Laboratory Director. <br />