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Excelchem Environmental Labs <br /> Project 931 Oro <br /> RW QC Centra)Valley 12-095-L50 Date Reported: <br /> 11020 Sun Center Dr.9200 <br /> Project Number: 09/10/13 11:31 <br /> Jim Barton <br /> Rancho Cordova,CA 95670 <br /> Project Manager: <br /> Volatile Organic Compounds by GC/MS-Quality Control <br /> Spike Some' <br /> %REC RPD <br /> Repoming Units Level Result %REC Limits RPD Limit Notes <br /> Analyte <br /> Result Limit MDL <br /> Batch AW 10020-EPA 8260B <br /> Prepared&Analyzed:08/30/13 <br /> LCS(AW10010-BSI) 11.5 97.1 70-IJO <br /> ug/I <br /> Surrogate:Dibromofluomm12.1 ethane 125 98.1 711-130 <br /> S. ,,e;7bfusne-d812.5 <br /> 11'3 108 "I . <br /> Surrogate:4-Bromofluorobenzene 13'5 0.05 20.0 117 80-120 <br /> 23.4 0.5 <br /> l,l-Dichlorsethene 0.06 20.0 117 80-120 <br /> 23.4 03 116 80-120 <br /> Ben>ese 0.09 20.0 <br /> 23.2 0.5 <br /> Tiichloroelhenc 23.3 0.5 009 �� 20.0 117 80-120 <br /> Toluene 0.08 20.0 114 80-120 <br /> Chiorobenesne 22.9 0.5 <br /> Prepared&A nalynd 08/30/13 <br /> LCS Dup(AW10020-BSDI) ug/I 11.5 94.6 70-130 <br /> Surrogate:Dlbromsfluorom11.8 ethone 135 99.7 70-130 <br /> Surrogate:Toluens- 11'5 100 70-/30 <br /> 11.5 <br /> Surrogate:4-Bromofluombe..inn, 11'6 0.05 20.0 102 80-120 13.6 IS <br /> 1,1-Diabloroethese 20.4 0.5 15 <br /> 0.06 20.0 104 60-120 11.8 <br /> Benzene 20.8 0.5 1 <br /> 20.7 0.5 0.09 20.0 104 80-120 11.5 15 <br /> Tiichloroetheoe 0.09 200 104 80-120 11.5 is <br /> . <br /> Toluene 20.8 0.5 0.08 20.0 104 80-120 9.68 15 <br /> Chlsrobervnne 20.8 0.5 <br /> The resula in this repo,,apply to!be samples analyzed In accordance with rhe chain of <br /> Excelchem Environmental Lab. <br /> caslody document.This analytics!report must be reproduced in its ennrery. <br /> Page 10 of 14 <br /> Laboratory Representative <br />