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Sequoia 819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical fAX(916)921-01o0 <br /> FAX <br /> LKleinfelder-Stockton Project: 1444 Mariposa S309079 <br /> 2825 East Myrtle Street Project Number: 34202 Reported: <br /> Stockton CA,95205 Project Manager: Francis Bean .09/09/03 16:14 <br /> L - Volatile Organic Compounds by EPA Method 8260B.- Quality,Control <br /> Sequoia Analytical - Sacramento <br /> L <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3080408-EPA 5030B [P/TJ <br /> LBlank(3080408-BLKI) Prepared&Analyzed:08/29/03 <br /> p-Isopropyltoluene ND 0.0050 mg/kg <br /> r-Methylene chloride ND 0.025 " <br /> Methyl tert-butyl ether ND 0.0050 <br /> aphthalene ND 0.0050 <br /> n-Propylbenzene ND 0.0050 <br /> LStyrene ND 0.0050 " <br /> I,1,1,2-Tetfachloroethane ND 0.0050 " <br /> 1,1,2,2-Tetrachloroethane ND 0.0050 " <br /> Tetrachloroethene ND 0.0050 " <br /> Toluene ND 0.0050 <br /> 1,2,3-Trichlorobenzene ND 0.0050 <br /> 1,2,4-Trichlorobenzene ND 0.0050 " <br /> 11,1-Trichloroethane ND 0.0050 <br /> ,1,2-Trichloroethane Nb -0.0050 " <br /> Trichloroethene ND 0.0050 <br /> L`richlorofluoromethane ND 0.025 " <br /> 1,2,3-Trichloropropane ND 0.0050 " <br /> 1,2,4-Trimethylbenzene. ND 0.0050 <br /> 1,3,5-Trimethylbenzene ND 0.0050 ; <br /> I <br /> Vinyl chloride ND 0.025 <br /> m,p-Xylene ND 0.0050 <br /> 4Ethanol ND 0.20 " <br /> ert-amyl methyl ether ND ' 0.0050 <br /> thyl tert-butyl ether ND 0.0056 <br /> Di-isopropyl ether ND 0.0050 F <br /> r Pert-butyl alcohol ND 0.050 II i <br /> urrogate:DibromoJluoromethane 0.0448 0.0500 90 60-140 <br /> .Surrogate:1,2-DCA-d4 0.0450 0.0500 90 60-140 f <br /> urrogate:Toluene-d8 0.0464 0.0500 93 60-140 <br /> L�urrogate: <br /> 4-BFB 0.0464 0.0500 93 60-140 <br /> r, l <br /> �t <br /> Sequoia Analytical-Sacramento E <br /> �l �, The results in this report apply to the samples analyzed in accordance with the chain'of <br /> custody document. Unless otherwise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 13 of 17 <br />