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Sequoia 1455 McDowe1181vd North Step <br /> `-_■ Petaluma,CA 94954 <br /> Analytical (707)792-1865 <br /> FAX(707)792-0342 <br /> www.sequoialaba.com <br /> 1 MACTEC E&C-Petaluma Project-.General Commercial P412379 <br /> 5341 Old Redwood Highway,Suite 300 Project Number:Sears/Tracy-UST/AST-3205040383.02 Reported: <br /> Petaluma CA,94954 Project Manager:Gary Lieberman 01/05/0510:53 <br /> Volatile Organic Compounds by EPA Method 8260B -Quality Control <br /> Sequoia Analytical-Petaluma <br /> Reporting Spike Source %REC RPD <br /> Anatyie Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> ' Batch 5010020-EPA 5030 soils/EPA 8260B <br /> Blank(5010020-BLKI) Prepared:01/03/05 Analyzed:01/04/05 <br /> Acetone ND 50 ug/kg <br /> ' Benzene ND 5.0 " <br /> Bromobenzene ND 5.0 <br /> Bromochloromethane ND 5.0 " <br /> ' Bromodichluromethane ND 5.0 " <br /> Bromoform ND 5.0 <br /> Bromomethane ND 10 <br /> 2-Bumnone ND 10 " <br /> n-Butylbenzene ND 5.0 <br /> sec-Butylbenzene ND 5.0 <br /> tett-Butylbenzene ND 5.0 " <br /> Carbon disulfide ND 10 .' <br /> Carbon tetrachloride ND 5.0 <br /> Chlorobenzene ND 5.0 <br /> Chloroethane ND 5.0 " <br /> ' Chloroform ND 5.0 <br /> Chloromethane ND 5.0 <br /> 2-Chlorotoluene ND 5.0 " <br /> 4-Chlormoluene ND 5.0 .' <br /> Dibromochloromethane ND 5.0 <br /> 1,2-Dibmmo-3chloropropane ND 5.0 <br /> 1,2-Dibromoethane(EDB) ND 5.0 " <br /> ' Dibromomethanc ND 5.0 " <br /> 1,2-Dichlorobeazene ND 5.0 <br /> 1,3-Dichlorobenzene ND 5.0 " <br /> 1,4-Dichlorobenzene ND 5.0 11 <br /> Dichlorodifluoromethane ND 5.0 <br /> l,l-Dichloroethane ND 5.0 <br /> 1,2-Dichloroethane ND 5.0 " <br /> 1,1-Dichloroethene ND 5.0 ^ <br /> cis-1,2-Dichloroethene ND 5.0 <br /> trans-1,2-Dichlomethene ND 5.0 " <br /> 1,2-Dichloropropane ND 5.0 ° <br /> 1,3-Dichloropropane ND 5.0 <br /> 2,2-Dichlompropane ND 5.0 <br /> 1,1-Dichloropropene ND 5.0 " <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 38 of 46 <br />