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Geol) nal tical Laborat r' <br /> y o 1Y, . Inc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone(209)572-0900 Fax (209)572-0916 <br /> Report# K055-09 QC REPORT QC Batch# V00056 <br /> Thorpe Oil <br /> PO Box 357 <br /> Lodi CA 95241-0357 <br /> Dates Analyzed 2/25/99-2/26/99 <br /> i <br /> Samples Analyzed: K20640-46, K20655-57, K20659-66, K20710 Sample Spiked: Method Spike <br /> %Recovery Duplicate RPD Blank <br /> Analyte Method Recovery <br /> Benzene 8020 92.2 91.2 1.0 ND <br /> Toluene 92.2. 90.2 2.1 ND <br /> Ethyl Benzene 100.2 98.4 1.8 ND <br /> Gasoline 5030/LUFT 101.9 97.8 4.2 ND <br /> MTBE 8020 83.5 91.0 8.6 ND <br /> Comments: <br /> )Sy/viaK±renn Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />