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' ! 1455 McDowell Blvd,North Ste D <br /> Petal <br /> Sequoia _ uma,CA 94964 <br /> (707)792-1865 <br /> Analytical FAX quoial707) 92-0142 <br /> wwwsequaialabs.com <br /> ' MACTEC E&C-Petaluma Prvjeet:General Commercial P412379 <br /> j <br /> Pro=t Number:Sears/15nc <br /> 5341 Old Redwood Highway,Suite 300 Y- <br /> UST/AST-3205040383.02 Reported- <br /> ' <br /> Petaluma CA,94954 Project ManagerGary 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 Analyzed Method Not <br /> 0452SS003(P412379-02)Soil Sampled:12/21/04 14:05 Received:12/22/04 09:20 " <br /> Hexachlombutadiene NO 5.0 ug/kg 1 5010020 01/03/05 01/04/05 EPA 8260B <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 10 <br /> Methyl tert-butyl ether NO 5.0 <br /> Naphthalene ND 5.0 <br /> n-Propylbenzene NO 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 NO 5.0 " <br /> ' 1,1,1-Trichloroethane ND 5.0 " ,1 <br /> Trichloroethene ND 5.0 <br /> Trichlorofluoromethane NO 5.0 <br /> 1,2,3-Trichloropropane ND 5.0 " <br /> ' 1,3,5-Trimethylbenzene NO 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 NO 5.0 <br /> o-Xylene ND 5.0 <br /> Surrogate:Dibro nct luoromethane 93% 81-126 " <br /> Surrogate: 1,2-Dichloroelhane-d4. 94% 73-131 X I, <br /> Surrogate:Toluene-d8 93% 82-129 <br /> Surrogate:4-BromoJluorobenzene 96% 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 11 of 46 <br />