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09/23/1998 16:03 5720910 GECANA(_YTICAL PAGE 16 <br /> f <br /> ' GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Phone (209) 572-0900 <br /> ' Modesto, CA 95351 FAX (209) 572-0916 <br /> QC REPORT <br /> Report# J252-14 Date: 9/17/98 <br /> ' Lab ID Dates Analyzed: 9/16/98 <br /> ' Wright Environmental Services. Inc. Method: 8240 <br /> 67 E 10th Street <br /> ' Tracy CA 95376 <br /> ' Samples Analyzed: J21627,J21628 <br /> Sample Spiked: Blank <br /> Analyte Method Soike Method Spike Relative Blank <br /> % Recovery Duplicate % Percent <br /> Recovery Difference(40) <br /> 1.1•Dichloroethene 103.0 101.9 1.1 ND <br /> ' Trichloroethene 104.3 102.8 1.4 NO <br /> Chlorobenzene 105.0 104.: 0.8 NO <br /> Toluene 106.1 105.1 1.0 NO <br /> Benzene 1055 105.3 0.1 NO <br /> ' Sylvia Kenn Donna Keller <br /> C'-etn:5t Certi:icacon 1 11157 Laboratory Director <br />