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• • 1455 McDowell Blvd,North Ste D <br /> 4 <br /> Sequoia Petaluma,07)7921865 <br /> Analytical <br /> FAX serium792-03a2 <br /> www.segmialabs.eom <br /> MACTEC E&C-Petaluma Projecr.General Commercial P412379 <br /> 5341 Old Redwood Highway,Suite 300 Project Number:Sears/Tracy-UST/AST-3205040383.02 Reported: <br /> Petaluma CA,94954 Project ManagecGary Lieberman 01/05/05 10:53 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Sequoia Analytical-Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> 1 Batch 5010020-EPA 5030 soils/EPA 8260B <br /> Blank(5010020-BLKI) Prepared:0t/03105 Analyzed:01/04/05 <br /> cis-1,3-13ichloropropene ND 5.0 upfkg <br /> trans-1,3-Dichlompropene ND 5.0 <br /> Ethylbemmre ND 5.0 " <br /> Freon 113 ND 5.0 " <br /> Hezachlorobutadiene ND 5.0 " <br /> ' 2-Hemnone ND 10 <br /> Isopropylbenzene ND 5.0 <br /> p-Isopropyltoluene ND 5.0 " <br /> ' Methylene chloride ND 5.0 <br /> 4-Methyl-2-pentanone ND 10 <br /> Methyl tert-butyl ether ND 5.0 " <br /> Naphthalene ND 5.0 " <br /> n-Propylbenzene ND 5.0 <br /> Styrene ND 5.0 <br /> 1,1,2,2-Tchachlorcethane ND 5.0 " <br /> ' 1,1,1,2-Tetrachloroethane ND 5.0 " <br /> Tetrachloraethene ND 5.0 <br /> Toluene ND 5.0 " <br /> 1,2,3-Trichlorobenzene ND 5.0 ° <br /> 1,2,4-Trichlorobenzene ND 5.0 <br /> 1,1,2.Trichloroethane ND 5.0 <br /> 1,1,1-Trichloroethane ND 5.0 " <br /> ' Trichloroethene ND 5.0 ; <br /> Trichlorofluoromethane ND 5.0 <br /> 1,2,3-Trichloropropane ND 5.0 <br /> I1,3,5-Trimethylbeozene ND 5.0 <br /> 1,2,4-Trimethylbenzene ND 5.0 <br /> Vinyl acetate ND 10 <br /> Vinyl chloride ND 5.0 " <br /> m,p-Xylene ND 5.0 <br /> o-Xylene CID 5.0 <br /> Surrogate:Dibromofluoromethane 95.0 100 95 81-126 <br /> ' Surrogate:1,1-Dichloroethane-d4 95.5 100 96 73-131 <br /> Surrogate:Toluene-d8 92.0 100 92 82-119 <br /> Surrogate:4-Bromofluorobenzene 95.1 100 95 74-131 <br /> Sequoia Analytical-Petaluma 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 39 of 46 <br />