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' • 1455 McDowell Blvd,North Ste D <br /> Petaluma,CA 94954 <br /> Sequoia (707)792-1865 <br /> FAX Analytical www.sequ..sequ7)792-0342 <br /> oialebs.eom <br /> MACTEC E&C-Petaluma Project:Geneml Commercial P412379 <br /> 5341 old Redwood Highway,Suite 300 Project Number:Sears/Tracy-UST/AST-3205040383.02 Reported: <br /> Petaluma CA,94954 Project ManagenGary Lieberman 01/05/05 10:53 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> ' Sequoia Analytical-Petaluma <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analywd Method Note <br /> ' 0452SS001(P412379-01)Soil Sampled:12/21/04 13:45 Received:12/22/04 09:20 <br /> Hexachlorobutadiene ND 5.0 ug/kg 1 5010020 01/03/05 01/04105 EPA 82608 <br /> 2-Hexanone 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 l0 " <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-Tetrachloroethane ND 5.0 <br /> 1,1,1,2-Tetrachloroethane ND 5.0 <br /> Tetrachloroethene 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 /> ' <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 /> 1,3,5-Trlmethylbenzene 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 ND 5.0 <br /> Surrogate:Dibromofluoromethane 94% 81-126 " <br /> ' Surrogate:1,2-Dichloroethaned4 97% 73-131 " <br /> Surrogate:Toluene-& 95% 82-129 <br /> Surrogate:4-Bromofluorobenzene 98% 74-131 <br /> 1 <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 9 of 46 <br />