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1 <br /> i <br /> I <br /> Excelchem Environmental Labs <br /> Geological Technics Project: Marci Property <br /> 1172 Kansas Ave Project Number: 770.2 Date Reported: <br /> Modesto,CA 95351 Project Manager: Geological Technics 07/25/11 10:16 <br /> Volatile Organic Compounds by GC/MS-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result. %REC . Limits RPD Limit Notes <br /> Batch AUG0136-EPA 8260B <br /> LCS(AUG0136-BSI) Prepared&Analyzed:07/12/11 <br /> Surrogate:DibromoJluoronrethane 11.5 119/1 12.5 92.2 70-130 <br /> Surrogate:Toluene-d8 12.0 12.5- 964- 70-130 <br /> Surrogate:4-BromoJluorobenzene 13.8 12.5 Ill 70-130 <br /> 1,1-Dichloroethene 18:3 0.5 20.0 91.6 80-120 <br /> Benzene 19.9 0.5 20.0 99.3 80-120 <br /> Trichloroethene 18.2 0.5 20.0 91.0 80-120 <br /> Toluene 17.1 0.5 20.0 85.3 80-120 <br /> Chlorobenzene 18.0 0.5 20.0 90.2 80-120 <br /> LCS Dup(AUG0136-BSDI) Prepared&Analyzed:07/12/11 <br /> Surrogate:DibromoJluoromethane 12.0 119/1 12.5 96.2 70-130 <br /> Surrogate:Toluene-d8 12.1 12.5 96.9 70-130 <br /> Surrogate:4-BromoJluorobenzene 13.9 12.5 111 70-130 <br /> 1,1-Dichloroethene 18.5 0.5 20.0 92.6 80-120 1.03 15 <br /> Benzene 20.6 0.5 20.0 103 80-120 3.41 15 <br /> Trichloroethene 18.7 0.5 20.0 93.4 80.120 2.55 15 <br /> Toluene 17.5 0.5 20.0 87.6 80-120 2.60 15 <br /> Chlorobenzene 18.8 0.5 20.0 94.0 80-120 4.18 15 <br /> EXcelchem Environmental Lab. The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> I <br /> Laboratory Representative Page 5 of7 <br /> i <br />