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Z 819 Striker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> t (916)921-%00 <br /> 6. TW Analytical FAX(916)921-0100 <br /> wwwscquuial nb.xom <br /> [I <br /> L <br /> Kleinfelder-Stockton Project:19898 S.3acktone S507231 <br /> 2825 East Myrtle Street Project Number.43498-G01 Reported: <br /> LStockton CA,95205 Project Manager:Ryan Olsen 07/26/05 18:28 <br /> Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> A <br /> L Batch 5070196-EPA 5030B IP/T] /EPA 8260B <br /> r Laboratory Control Sample(5070196-BS2) Prepared&Analyzed:07/18/05 <br /> Benzene 16.6 0.50 ugA 20.0 83. 70.130 <br /> Chloroberrrene 18.0 0.50 20.0 90 70.130 <br /> I,1-Dichloroethene 16.5 0.50 20.0 82 70-130 <br /> Toluene 18.1 0.50 20.0 90 70.130 <br /> ILLTrichloroethene _ 24.2 0.50 20.0 121 70.130 <br /> Surrogate:Dibrunrq/luoromedume 9.66. " 10.0 97 70.130 - - - --- - -_ <br /> Surrogate:l,2-DCA-d4 9.17 10.0 92 70.130 <br /> Surrogate: Toluene-d8 9.87 10.0 99 70.130 <br /> Surrogate:4-BFB 8.99 /0.0 90 70-130 <br /> Matrix Spike(51170196-MSI) Source:5507256-12 Prepared:07/18/05 Analyzed:07/19/05 <br /> LBenzene 17.8 0.50 ugA 20,0 ND 89 60.140 <br /> i Chlorobenzene 18.8 0.50 " 20.0 ND 94 60.140 <br /> ` 1,1-Dichloroethene 16.8 0,50 20.0 ND 84 60.140 <br /> Toluene 18.8 0.50 20.0 ND 94 60.140 <br /> 1 Trichloroethene 18.0 0.50 20.0 ND 90 60-140 <br /> Surrogate:DibromoJlvoromethane 9.14 10.0 91 70.130 <br /> - - <br /> Surrogate: 1,1-DCA-d4 9.71 10.0 97 70-130 <br /> - Surrogate:Toluene-d8 9.41 II 10.0 94 70-130 <br /> Surrogate:4-BFB 8.96 10.0 90 70.130 <br /> r. Matrix Spike Dup(5070196-MSDI) Source:S507256-12 Prepared:07/18/05 Analyzed:07/19/05 <br /> Benzene 17.0 0.50 ugA 20.0 ND 85 60.140 5 25 <br /> Chlorobenzene 17.7 0.50 20.0 ND 88 60.140 6 25 <br /> IJ-Dichlorcethene 16.1 0.50 20.0 ND 8o 60.140 4 25 <br /> Toluene 17.8 0.50 20.0 ND 89 60.140 5 25 <br /> 1 Trichloroethene 17.6 0:50 " 200 ND 88_ 60140 2 25 <br /> {L Surrogate.:Dibromofluoromethane 9.90 10.0 99 70.130 <br /> Surrogate:1,2-DCA-d4 9.31 10.0 93 70.130 <br /> i <br /> Surrogate:Toluene-d8 9.54 10.0 95 70-130 <br /> LSurrogate.'4-8FB 9.15 10.0 92 70-130 <br /> L <br /> I, Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> Lcustody document. Unless otherwise stated,results are reported on a met weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> PLATE 10 <br /> L <br /> I` Page 9 of I I <br /> 4 <br />